2019-2024 Ram 6.7L Cummins Filter Kit Buyer’s Guide

The $4,200 Filter Change: Why Your 2019+ Ram Demands More Than a Quick Swap

Here’s the reality check: Ram briefly used the Bosch CP4.2 high-pressure fuel pump on 2019 and early 2020 model-year 6.7L Cummins trucks — the same pump that earned Ford’s 6.7L Powerstroke a class-action lawsuit. Unlike the CP3 pump these engines were built on, the CP4.2 operates at 30,000 PSI with roller-tappet clearances measured in microns and zero tolerance for contaminated fuel.

Good news: Ram wised up in mid-2020 and switched back to the CP3 pump on all standard-output 6.7L trucks. There’s also an open recall — Ram dealers will replace the CP4.2 with a CP3 at no charge on affected 2019-2020 trucks. If you own a 2019-2020, run your VIN through the Mopar recall checker today.

So why do filters still matter? Because even the CP3 doesn’t like water and debris. And because filter neglect causes cascading problems beyond the pump: clogged injectors, stuck EGR valves, soot-loaded DPF filters, and seized VGT turbo vanes — all of which routinely cost $2,000-$5,000 each to fix. A clean fuel and oil supply is the cheapest insurance policy on a modern diesel.

What’s In a Proper 2019-2024 Ram 6.7L Filter Kit?

Before we look at prices, you need to understand exactly what you’re buying. The 2019+ Ram Cummins uses a four-filter system — not three, not two. Every one matters.

The Dual-Stage Fuel Defense: Chassis + Engine Bay

The 2019+ trucks use a two-filter fuel system with completely different part numbers from the 2013-2018 generation:

Filter	Position	OEM Part #	Function	Replacement
Primary (Water Separator)	Passenger side, forward of rear axle	68436631AA	Strips bulk water and 5-micron particulates from tank fuel	Every 15,000 mi
Secondary (Final Polish)	Driver’s side engine bay, beside brake reservoir	68157291AA	3-micron final filtration before the high-pressure pump	Every 15,000 mi
Oil Filter	Passenger side engine block	5083285AA	Full-flow filtration, soot and wear particle capture	Every 7,500 mi
Air Filter	Driver’s side airbox	53034051AB / CA10261	Dry pleated media with metal stabilizer bars, prevents turbo dust ingestion	Every 30,000 mi

Critical difference from 2013-2018 trucks: The chassis filter changed from 68197867AA (a twist-lock canister) to 68436631AA (a drop-in cartridge). They are not interchangeable. If an Amazon kit advertises “2013-2024 Ram 6.7L” — run. The chassis element is completely different between generations.

Why Filters Matter Even More Than You Think

The 2019+ Ram 6.7L faces three filter-sensitive failure points:

• Fuel contamination: Whether you have a CP4.2 (2019-early 2020) or CP3 (late 2020+), water and debris in diesel fuel destroy high-pressure pump internals. CP4.2 failures cascade to injectors and hard lines ($10K-$15K). CP3 is more tolerant but not immune — contaminated fuel still scores pump plungers.
• Soot loading from poor oil filtration: The EGR system recirculates exhaust back through the intake. If your oil filter isn’t capturing soot and wear particles, that abrasive slurry coats EGR cooler fins, EGR valves, and intake runners. A clogged EGR cooler is a $1,500+ repair. A stuck EGR valve throws derate codes that require dealer-level diagnostic software to clear.
• VGT turbo carbon buildup: The variable-geometry turbo uses moving vanes controlled by an electronic actuator. Soot-laden oil and unfiltered intake air accelerate carbon buildup on those vanes. When they seize, you’re looking at a turbo replacement — $2,500-$4,000 installed.

From Alex, a Cummins-certified heavy-duty mechanic: “The number one way to prevent after-treatment issues is to run these engines hard and hot. Limit idle time. If you drive five miles to work and back every day, you’re going to have problems. These engines need to reach full operating temperature regularly.”

Clean fuel and clean oil aren’t just about the pump — they’re about keeping your entire emissions and induction system alive.

Real-Time Competitor Comparison (Amazon Data, July 2026)

We scraped live Amazon pricing on July 23, 2026. Here are the results, ranked by relevance to the 4-filter kit you need:

#	Brand	Amazon ASIN	Price	Contents	Rating	Reviews	Monthly Sales
🏆	TruckTok	—	$125.10	4 filters (2× fuel + oil + air)	4.8★	1,200+ store	Free shipping
1	DOC’S DIESEL	B0DFLZ2DBB	$69.99	4 filters	3.9★	149	300+/mo
2	AULDAY	B0FNVVXG12	$49.99	4 filters	4.3★	107	—
3	YZQPNB	B0FRRW3LNF	$58.99	4 filters	5.0★	5	—
4	RARAYC	B0DL9T5F2Y	$63.99	5 filters (incl. cabin)	5.0★	4	—
5	Unbranded	B0GS284NC6	$66.40	5 filters (incl. cabin)	5.0★	N/A	—
6	Unbranded	B0FR46Q42R	$57.99	5 filters (incl. cabin)	4.1★	9	—
—	Mopar OEM (dealer)	—	~$190-225	4 filters (individual)	OEM	—	—
—	Mopar OEM (Amazon)	B08BYYT2YL	$112.86	2 fuel filters only	4.7★	725	—

Data source: Amazon product pages, scraped July 23, 2026. Prices subject to change.

Three Things the Comparison Table Doesn’t Tell You

1. Review volume is a quality signal. The most-established Amazon 4-filter competitor (DOC’S DIESEL, B0DFLZ2DBB) has 149 reviews at 3.9 stars. Read the 1- and 2-star reviews and you’ll find patterns: “air filter didn’t fit,” “O-ring leaked after 2 weeks,” “fuel filter was the wrong part number.” The 5.0-star competitors have 4-9 reviews each — statistically meaningless. You’re gambling. TruckTok has 1,200+ verified store reviews across the entire filter lineup.

2. “5-filter kit” doesn’t mean better. The Amazon 5-filter bundles include a cabin air filter (a $15 part you can buy anywhere) but often cut corners on the fuel filters — the two components that actually protect your $12,000 fuel system. You’re trading a critical-component quality gamble for a glove box full of cab-fresh air.

3. OEM pricing is brutal. A full Mopar-branded set (68436631AA + 68157291AA + 5083285AA + 53034051AB) runs $190-225 at the dealership parts counter. Amazon OEM sellers aren’t much better — Mopar-branded fuel filters alone (B08BYYT2YL) ring up at $112.86 for just two filters, no oil or air. TruckTok’s $125.10 bundle comes in at roughly 55% of dealer MSRP for equivalent-quality filtration.

Bottom line: You have three paths. Path A — dealership: reliable but $190+. Path B — Amazon no-name: $50-70 but you’re rolling the quality dice on the two components that protect an $8,000-$12,000 fuel system. Path C — TruckTok: $125.10 with 1,200+ reviews, free shipping, forum tech support, and a warranty. You decide how much your high-pressure fuel pump is worth.

Step-by-Step Installation: Change All 4 Filters on Your 2019-2024 Ram 6.7L

Budget 60-90 minutes for a complete service. Here’s the sequence, optimized to minimize the number of times you crawl under the truck.

Alternate order (from Guy & His Projects): If you’re paranoid about forgetting to refill engine oil — a legitimate fear — do Steps 1-4 (oil change) first, refill the crankcase, start the engine to verify no leaks, then proceed to Steps 5-8 (fuel filters + prime). This wastes a few minutes but eliminates the risk of a dry start.

Tools You’ll Need:

Tool	Used For
28mm deep-well socket	Both filter housing caps (tighter fit than 1-1/8")
Swivel joint + long extension	Front filter cap — clears brake reservoir obstruction
Breaker bar	Breaking loose tight filter caps (more leverage, less force)
#2 Phillips screwdriver	Front filter yellow bleed screw (1/4 turn to drain)
1/4" ID fuel hose (~24" long)	Rear filter drain nipple extension
5/8" ID hose (~24" long)	Extends front filter factory drain hose past crossmembers
Clear catch container	Inspect diesel for water/debris (rear filter especially)
Drain pan (minimum 3-gallon)	Oil + diesel drainage
Old rags or shop towels	Diesel spill containment — non-negotiable
Oil filter wrench (strap or cap-type)	Oil filter removal
13mm socket or wrench	Oil drain plug
Pick tool	Removing old O-rings from fuel filter caps
Nitrile gloves	Diesel is carcinogenic on skin
Torque wrench (optional but recommended)	Filter housing cap: 25-30 Nm

Step 1: Drain the Rear Water Separator (Chassis Filter)

Crawl under the passenger side, just forward of the rear axle (past the exhaust, beside the driveshaft). You’ll see the black plastic filter housing. On the bottom is the drain nipple and water separator petcock.

1. Slide a piece of 1/4" ID fuel hose (~24" long) onto the drain nipple and route the other end into your clear catch container. This eliminates the diesel shower.
2. Open the petcock by hand (or with an 8mm socket if it’s tight). Diesel will stream out through the hose into your container. Expect 18-20 oz.
3. Watch the fuel in your clear container — if you see a visible water layer at the bottom (diesel floats on water), your fuel source is suspect.
4. Once the stream slows to a drip, close the petcock (finger-tight — plastic threads).
5. Leave the hose in place until you’re done reinstalling the new filter — drips happen.

Pro tip from James at Learn from Dad: The 2019+ chassis filter is a drop-in cartridge — the water-in-fuel sensor stays in the housing. Unlike the 2013-2018 canister style, you don’t remove or replace the sensor during this service.

Step 2: Remove and Replace the Chassis Fuel Filter (68436631AA)

1. Use your 28mm socket + swivel + long extension + breaker bar from the driver’s side of the driveshaft. This angle gives you far more leverage than reaching straight up from the passenger side.
2. Crack the cap loose, then switch to a ratchet and spin it off by hand. Watch for the black O-ring — it should stay on the cap. Expect another few ounces of diesel to drip when the seal breaks.
3. Pull the old filter cartridge down. It snaps onto internal barbs in the housing — wiggle firmly, and it’ll release with a pop.
4. Inspect the old filter: rust-colored residue = water damage. Black sludge = algae/bacteria. Metallic shimmer = pump wear (emergency — stop and diagnose).
5. Look inside the housing — there’s a fine mesh screen that catches debris before the secondary filter. If it’s clogged or has visible grit, your fuel source is contaminated.
6. O-rings — there are two: The old cap O-ring and an O-ring inside the housing. The cap O-ring is the smaller of the two in your kit (the front filter gets the larger one). Use a pick tool to remove the old O-rings, lube the new ones with clean diesel, and install. Never install an O-ring dry — unlubricated rubber will bind, roll, and tear when the cap tightens.
7. Install the new filter: it snaps onto the housing barbs. The housing has directional alignment tabs — rotate the filter until you feel it seat, then push until you hear the audible click.
8. Thread the cap on by hand until it seats, then tighten with the ratchet. Torque: 30.5 Nm / 22 ft-lbs (printed on cap — same as the engine bay filter). The O-ring does the sealing — once you feel it compress, stop. Do not overtighten — these caps are glass-filled nylon.

Video note — Learn from Dad (2024 Ram 2500): “I use the breaker bar from the driver’s side of the driveshaft — gives me way more torque with way less effort.” And on the filter: “Make sure it snapped down. Heard it click. Good.”

Step 3: Replace the Engine Bay Fuel Filter (68157291AA)

Pop the hood. The secondary filter housing is on the driver’s side of the engine, right beside the brake fluid reservoir. The round black cap has a hex molded into the top.

Aisin transmission owners: Trucks with the Aisin AS69RC have a transmission dipstick tube running right past the fuel filter housing, making access slightly tighter. 68RFE-equipped trucks don’t have this obstruction. Either way, the swivel socket solves it.

Before touching the cap — drain the housing first. Ram gave you a factory drain hose, but it’s only 4" long and sits above the crossmembers. So:

1. Ram a piece of 5/8" ID hose (~24" long) over the factory drain stub and route the other end into your catch container. Now the fuel goes where you want, not all over the front axle.
2. Locate the yellow bleed screw on top of the filter housing. Insert a #2 Phillips screwdriver and turn it 1/4 turn counterclockwise. You’ll hear fuel start draining through the hose immediately.
3. Wait for drainage to stop. Expect ~30 oz. Close the bleed screw (clockwise until snug — it’s plastic, don’t torque it).
4. Now remove the cap: 28mm socket + swivel + breaker bar from above. The brake reservoir is in the way of a straight shot — the swivel makes the angle work. Crack it loose, then spin off by hand.
5. Lift the cap straight up. The old filter may come out with the cap (clipped in), or it may stay in the housing — this varies by filter brand. If it stays behind, reach in with pliers and pull it straight up. Either way, fuel will drip from the saturated media — have rags ready.
6. Unclip the old filter. This cap’s O-ring is the larger of the two in your kit. Remove the old one, install the new larger O-ring, lubricate with diesel or oil.
7. The new filter has an oval-shaped bottom — it’s directional. Rotate it until it seats properly in the housing, then press down with the palm of your hand to ensure it’s fully seated.
8. Thread the cap on by hand, then tighten with breaker bar. Torque: 30.5 Nm / 22 ft-lbs (this number is printed right on the cap).
9. Critical: close the bleed screw before priming. Forgetting this step means air enters the system and your prime won’t work.

Video note — Learn from Dad: “I use the breaker bar because the leverage lets me get more torque without having to use so much force. The swivel lets me brace my hand up by the brake reservoir and use nice, controlled torque.” Also: “Don’t forget to close your bleeder screw before priming — I’ve done that.”

Step 4: Drain Oil and Replace Oil Filter (5083285AA)

Your Ram 6.7L takes approximately 12 quarts (3 gallons) of 5W-40 or 15W-40 diesel-rated oil. Use a large drain pan.

1. Remove the oil fill cap on top of the engine (passenger side valve cover). This vents the crankcase and speeds up draining.
2. Crawl under the front of the truck. The oil drain plug is on the bottom of the oil pan, facing the rear. It’s a 3/8" square drive — you can stick a 3/8" ratchet (or ratchet + extension for clearance) directly into it. No socket needed.
3. Position your drain pan and remove the plug. 12 quarts is a lot — make sure your pan can handle it.
4. While the oil drains, move to the passenger side of the engine block. The oil filter is a spin-on canister, easily accessible from underneath.
5. Spin off the old filter with a strap wrench or cap-type oil filter wrench. Expect another half-quart of oil to drain when you break the seal.
6. Before installing the new filter: fill it about 2/3 full with fresh oil. Dip your finger in oil and run it around the new rubber gasket. This prevents the gasket from binding and tearing during installation.
7. Spin the new filter on by hand until the gasket contacts the block, then tighten 3/4 to 1 full turn. No wrench — hand-tight is correct.
8. Reinstall the drain plug with a new crush washer. Torque to 35 ft-lbs. (Some sources say 30, others 35 — the steel pan forgives a 5-pound difference. Either works.)
9. Pour in 11 quarts of fresh oil. Start the engine, let it idle for 30 seconds, shut it off, and check the dipstick. Top up to the full mark (usually takes 11.5-12 quarts total).

Step 5: Replace the Air Filter (53034051AB)

1. The airbox is on the driver’s side, behind the headlight. Look for the rectangular black box with a large intake hose running to the turbo.
2. Remove the 10mm screws around the perimeter of the airbox lid (some years use spring clips instead — same lid, different fastener).
3. Lift the lid and remove the old filter. Take a photo of the orientation — the pleats run a specific direction.
4. Vacuum out any debris, leaves, or dead bugs from the bottom half of the airbox before inserting the new filter. Sand and grit in the airbox = turbo compressor wheel damage.
5. Insert the new 53034051AB filter. The metal stabilizer bars face down into the airbox. The rubber perimeter seal must sit flush in the channel — check all four sides.
6. Reinstall the lid, ensuring the rubber seal is compressed evenly. Snap all clips closed.
7. Give the intake hose a wiggle at both ends (turbo inlet and airbox outlet). A loose hose clamp means unfiltered air bypassing the filter entirely — and that means dusted turbo vanes.

Replacement interval reality check: Ram says 30,000 miles. If you live in the Southwest, run dirt roads, or tow regularly, cut that to 15,000-20,000 miles. A pleat full of fine desert dust is a restriction — your turbo is working against a vacuum cleaner. A $40 air filter is cheaper than $2,500 for turbo rebuild labor.

Step 6: Prime the Fuel System (CRITICAL: DON’T DRY-START YOUR HIGH-PRESSURE PUMP)

Do not start the engine yet. The fuel system is full of air after changing both filters. Starting without priming can force the high-pressure pump to run dry — and for 2019-early 2020 trucks with the CP4.2 pump, that means permanent damage in as few as 2-3 dry starts. Even CP3-equipped trucks (late 2020+) should be primed — air in the fuel lines causes extended cranking, rough idle, and unnecessary injector wear.

For keyed-ignition trucks (ST trim, Tradesman):

Is the system self-priming? One of our video sources mentioned this belief. Technically: the in-tank lift pump will eventually push fuel through, but only when the key is in RUN. If you crank the engine immediately with empty filter housings, the high-pressure pump spins dry for 5-10 seconds before fuel arrives. The system isn’t “self-priming” in the sense that you can turn the key and go — the lift pump needs those key cycles to do its job.

1. Turn the key to the RUN position (dash lights on, but don’t crank).
2. Listen carefully — you’ll hear a humming/buzzing sound from the fuel tank area. That’s the in-tank lift pump running.
3. The pump will run for approximately 25-30 seconds, then stop.
4. Turn the key to OFF.
5. Repeat steps 1-4: 2 to 6 times. If you drained both housings completely, go for 5-6. If the truck has been sitting and the housings weren’t fully emptied, 2-3 may be enough. The in-tank pump sound tells you when air is purged — gurgling = keep cycling, smooth buzz = ready.
6. Only now do you turn the key to START.

For push-button start trucks (Big Horn, Laramie, Limited, etc.):

1. Do NOT press the brake pedal. Pressing the brake tells the computer you want to start.
2. Press the START button once (no brake). This enters ACC mode.
3. Press the START button again (still no brake). This enters RUN mode. The lift pump will now run for ~25-30 seconds.
4. Wait for the pump to stop, then press START once more to return to OFF.
5. Repeat 2-6 times, depending on how much fuel you drained. If you drained both housings completely (recommended), lean toward 5-6. If the truck sat 24+ hours before the change and the housings weren’t bone-dry, 2-3 may suffice. (Our four video sources range from 2 to 6 — the safer number is higher.)
6. On the final cycle, press the brake and the START button to fire the engine.

Auditory diagnostic: The in-tank lift pump makes a distinct sound. When you first cycle the key after a full filter change, it’ll sound like a coffee maker struggling to fill. By cycle 4-6, it should be a smooth electric buzz. If it’s still gurgling on cycle 6, run another 2-3 cycles. Never shortcut this.

Step 7: Check for Leaks

1. Start the engine and let it idle for 60 seconds.
2. Crawl under the truck with a flashlight.
3. Inspect the chassis filter housing cap — look for diesel weeping around the O-ring.
4. Check the engine bay filter housing — any wetness around the cap threads means the O-ring didn’t seat.
5. Check the oil drain plug and oil filter base.
6. If everything is dry, shut off the engine, re-check oil level, and you’re done.

Step 8: Reset the Fuel Filter Life Monitor (EVIC)

After completing the fuel filter change:

1. Turn the ignition to RUN (or press START without brake).
2. Using the steering wheel controls, navigate to Vehicle Info on the instrument cluster display.
3. Scroll down to Fuel Filter Life.
4. Press and hold the right arrow button until the display resets to 100%.
5. If your truck has a separate Oil Life monitor, repeat the process for that as well — the two are independent.

5 Common Mistakes That Will Cost You Thousands

Mistake 1: Installing the 2013-2018 Chassis Filter (68197867AA) in a 2019+ Truck

The 2013-2018 trucks use a twist-lock canister-style chassis filter. The 2019+ trucks use a drop-in cartridge (68436631AA). They look completely different, yet Amazon listings routinely group “2013-2024” into one fitment. The wrong filter won’t seal in the housing — fuel bypasses the element entirely, sending unfiltered tank fuel directly to the secondary filter and the high-pressure pump.

How to avoid: If the kit lists 68197867AA anywhere, it’s for 2013-2018 trucks. Walk away.

Mistake 2: Skipping the Priming Sequence

Every 2019+ Ram 6.7L has a lift pump in the fuel tank. Its job is to feed filtered fuel to the high-pressure pump at low pressure. After a filter change, both fuel filter housings are empty — if you crank the engine immediately, the lift pump hasn’t had time to push fuel through the system. The high-pressure pump runs dry for 5-10 seconds.

The damage: High-pressure pump internals lose lubrication instantly. On CP4.2-equipped trucks (2019-early 2020), roller tappets skid on the cam lobe and micro-welding starts immediately — 3,000 miles later, the pump grenades. CP3-equipped trucks (late 2020+) are more forgiving, but dry-starting still accelerates wear on precision-machined pump plungers.

How to avoid: Follow Step 6 above. Five key cycles minimum.

Mistake 3: Overtightening the Plastic Filter Caps

Both the chassis housing and engine bay housing are glass-filled nylon. They’re strong, but they have a torque limit: 25-30 Nm (18-22 ft-lbs). If you crank them down with a 1/2" ratchet like a lug nut, you’ll crack the housing threads.

The damage: Housing replacement is $120-180 for the part alone, plus labor. The chassis housing requires dropping the skid plate and disconnecting fuel lines.

How to avoid: Mark the cap position before removal. Hand-tighten until the cap seats, then 1/4 turn with the ratchet — no more. If you use a torque wrench, set it to 25 Nm.

Mistake 4: Reusing Crushed or Cracked O-Rings

Both fuel filter caps use large-diameter O-rings. After 15,000 miles of heat cycling and diesel exposure, they lose elasticity. Reusing an old, flattened O-ring guarantees a slow diesel weep — you’ll smell fuel every time you park, and the air leak will make hot restarts difficult.

How to avoid: Every quality filter kit (including TruckTok’s) includes replacement O-rings. Use them. Throw the old ones away.

Mistake 5: Installing the Air Filter Upside Down

The 53034051AB air filter has metal stabilizer bars on one side. These bars face down into the airbox — they prevent the pleated media from collapsing under high boost (30+ PSI on these trucks). If you install the filter upside down, the bars can’t support the media. On a hard pull with a trailer, the filter pleats can collapse, choking airflow and sending your EGTs through the roof.

How to avoid: Take a picture before removing the old filter. The bars face down. Always face down.

FAQ: Everything You Wanted to Know About Ram 6.7L Filter Changes

Q1: Can I use Fleetguard instead of Mopar filters?

Yes. Fleetguard (Cummins Filtration) is the OEM manufacturer for Mopar-branded Cummins filters. A Fleetguard LF16035 oil filter is functionally identical to the Mopar 5083285AA. The TruckTok kit uses filtration media meeting or exceeding OEM specifications across all four elements.

Q2: What’s the difference between the 2013-2018 and 2019-2024 chassis fuel filter?

The 2013-2018 uses a twist-lock canister (68197867AA) that threads onto a permanent housing. The 2019-2024 uses a drop-in cartridge (68436631AA) inside a screw-cap housing. The housings are physically different — you can’t swap filters between generations. This is the #1 fitment error on Amazon.

Q3: Do I really need to change both fuel filters at the same time?

Technically, you can change them separately — but you shouldn’t. If the primary filter was overdue, debris already passed through to the secondary. If the secondary is clogged, it’s creating back-pressure that damages the primary housing. Change them as a pair, every 15,000 miles. The incremental cost of the second filter is trivial compared to fuel system repair.

Q4: How often should I drain the water separator between filter changes?

Every oil change (7,500 miles) at minimum. If you buy fuel from high-turnover truck stops (Love’s, Pilot, Petro), water contamination is less likely. If you fuel up at rural stations or run a transfer tank, drain the separator monthly. Water is diesel fuel injection’s kryptonite — and the drain takes 30 seconds.

Q5: Can I pre-fill the fuel filter housings with diesel to reduce priming cycles?

Yes — and you should. After installing the new filter, pour diesel directly into the housing until it’s about 80% full, then thread the cap on. This dramatically reduces the amount of air you need to purge and cuts priming cycles from 5-6 down to 2-3. Some pros pre-fill with ATF instead of diesel (ATF has detergent additives that clean injector tips), but plain diesel works fine.

Q6: My truck has 85,000 miles and I just bought it used. What should I do first?

Replace all four filters immediately. You have no idea what the previous owner used or when they changed them. Assume the worst: cheap gas-station filters, changed once at 30K, never touched since. Many catastrophic fuel system failures — especially on CP4.2-equipped 2019-early 2020 trucks — happen within 5,000 miles of a used-truck purchase, because the new owner trusted the previous owner’s maintenance claims.

Q7: I’ve heard about CP4 pump problems on Ram 6.7Ls. Which years are affected?

2019 and early 2020 model-year trucks were built with the Bosch CP4.2 pump — the same pump known for catastrophic failures in Ford’s 6.7L Powerstroke. Ram switched back to the CP3 pump in mid-2020, and there’s an open recall for affected trucks: dealers will replace the CP4.2 with a CP3 at no charge. If you own a 2019-2020 Ram 6.7L, run your VIN through the Mopar recall site immediately. 2021+ trucks come with the CP3 from the factory and don’t have this particular vulnerability — though clean fuel and proper priming are still essential for any common-rail diesel.

Q8: What happens if I accidentally put the chassis filter in upside down?

The housing cap won’t thread on properly — you’ll feel resistance before it seats. The center post has a specific receiving shape for the filter’s top end. Forcing it will crush the filter element and send plastic debris into your fuel system. If it doesn’t thread smoothly, stop and check orientation.

Q9: Should I get the 5-filter kit that includes a cabin air filter?

If your truck has a cabin air filter (most 2019+ Rams do, located behind the glovebox), adding it makes sense — it’s a $15 part that takes 2 minutes to change. The TruckTok 5-filter kit includes the cabin filter for minimal extra cost. But don’t choose a 5-filter kit over a 4-filter kit if the tradeoff is fuel filter quality. Your lungs can handle a little dust. Your fuel system cannot.

Q10: My EVIC says “Fuel Filter Life 0%” but the truck runs fine. Can I ignore it?

You can — for about 2,000 miles. Then the warning becomes a persistent chime every time you start the truck. Then your fuel economy drops as the secondary filter clogs and fuel pressure at the rail drops. Then you get a P0087 (low rail pressure) code and limp mode. The EVIC counter is conservative for a reason: Ram’s lawyers set it to remind you before the filter becomes a problem, not after.

Q11: Can I change just the engine bay filter and skip the chassis filter?

The chassis filter is the “pre-filter” — it handles bulk water and large particulates. The engine bay filter is the “polishing filter.” If you skip the chassis filter, the engine bay filter clogs twice as fast, and water passes through to the high-pressure pump. The chassis filter is actually the more important of the two. Change both.

Q12: What’s the actual torque for the oil drain plug?

30 ft-lbs with a new crush washer. The 6.7L Cummins oil pan is stamped steel — not cast aluminum. It’ll take a few over-torques before the threads strip, but 30 is the spec. If you don’t have a torque wrench, tighten until the crush washer visibly compresses, then 1/8 turn more.

Q13: Do I need to use a specific brand of oil?

Any CJ-4 or CK-4 rated 5W-40 or 15W-40 diesel oil works. Rotella T6 (5W-40 synthetic) is the forum favorite. Valvoline Premium Blue and Mobil Delvac are equally good. Avoid “universal” gas/diesel combo oils — they don’t have the soot-dispersant additive package that a 12,000-mile diesel oil change interval requires.

The Bottom Line

Your 2019-2024 Ram 6.7L Cummins is a $60,000+ truck with a fuel system that costs $12,000 to replace. The four filters protecting that system cost $125 — or $50 if you’re willing to gamble on an Amazon white-label brand with 4 reviews.

TruckTok’s kit splits the difference: near-OEM filtration quality at 55% of the dealer parts-counter price, with 1,200+ reviews, free shipping, and a forum where actual diesel owners answer questions. It’s not the cheapest option on the internet. It’s the cheapest option that doesn’t make you the beta tester for a brand you can’t pronounce.

Shop the 2019-2024 6.7L Ram Filter Kit

Individual Filter Product Pages

• Chassis Fuel / Water Separator Filter — Replaces 68436631AA
• Engine Bay Upper Fuel Filter — Replaces 68157291AA
• Diesel Oil Filter — Replaces 5083285AA
• Diesel Air Filter — Replaces 53034051AB