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Brand TruckTok

Trucktok 2007-2009 6.7L Dodge Ram Fuel Water Separator Filter Replaces FS43257

SKU FI-R-9-01
Original price $65.99 - Original price $65.99
Original price
$65.99
$65.99 - $65.99
Current price $65.99

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FITMENT

  • 2007-2009 6.7L Dodge Ram Cummins 2500 Turbo Diesel
  • 2007-2009 6.7L Dodge Ram Cummins 3500 Turbo Diesel
  • 2008-2009 6.7L Dodge Ram Cummins 4500 Turbo Diesel Chassis Cab
  • 2008-2009 6.7L Dodge Ram Cummins 5500 Turbo Diesel Chassis Cab

OEM Cross-Reference

  • 5257769, 68061633AA, 5183410AA, 4936025, BF1392, P550799, P550907, PS10279, LFF3252, LFF3257, 24723, FS43257, FS43252.

DESCRIPTION

Product Overview

  • The 2007–2009 Dodge Ram 6.7L Cummins diesel engine relies on a highly sensitive high-pressure common rail (HPCR) fuel system. Under extreme pressures, microscopic grit or emulsified water can score fuel injection pump internals and clog precision nozzles, leading to rough idling, fuel starvation, and costly engine repairs.
  • This premium fuel water separator filter acts as an absolute defense shield for your Cummins fuel system. Utilizing dual-nested, multi-layer synthetic filtration media, it delivers exceptional 5-micron filtration to trap 99% of harmful debris and strip moisture from diesel before it can reach the high-pressure pump. Outfitted with glass-fiber reinforced polymer end-caps to prevent cracking under extreme under-hood heat, and paired with fuel-resistant nitrile seals to prevent vacuum leaks, this direct-fit replacement guarantees steady rail pressure and responsive throttle performance for up to 15,000 miles.

Key Features

  • Features a premium, multi-layer dual-nested media that traps 99% of microscopic debris, safeguarding your high-pressure fuel pump and precision injectors from premature wear.
  • Strips up to 98% of emulsified and free water from diesel fuel, stopping fuel system corrosion and injector tip erosion before it starts.
  • Engineered with high-strength, glass-fiber reinforced polymer end-caps and a heavy-duty housing assembly to resist cracking and warping under intense engine-bay heat.
  • Outfitted with premium fuel-resistant nitrile O-rings to maintain a secure, airtight seal, preventing vacuum leaks and fuel pressure drops.

Replacement Interval

  • Replace this filter every 15,000 miles or 12 months (whichever comes first) to maintain peak common-rail performance. To prevent water buildup and fuel system corrosion, we highly recommend draining the separator bowl at every scheduled oil change—or sooner if you frequently operate in high-humidity areas or use high-sulfur diesel.

FAQ

Q: Why does the 2007–2009 6.7L Cummins need a dedicated fuel water separator?

A: The high-pressure fuel pump relies on diesel for lubrication. Water strips this lubrication, causing rapid internal wear. This separator uses hydrophobic media to block 99% of debris and water before it reaches your pump.

Q: How do I know when to drain the water separator bowl?

A: Drain it when the "Water in Fuel" (WIF) light on your dash turns on. As a preventive habit, drain the bowl at every oil change, or monthly if you operate in high-humidity areas.

Q: Can I run this filter with biodiesel?

A: Yes, it is fully compatible with up to B20 biodiesel. Because biodiesel absorbs more moisture, we recommend draining the water bowl more frequently (monthly or every 3,000 miles).

Q: What happens if I delay or skip this fuel filter service?

A: A clogged filter causes rough idling and fuel starvation under acceleration. If it collapses, abrasive dirt and water will flow directly into your injection system, causing thousands of dollars in pump and injector damage.

Q: Ready to pair this fuel separator with the matching oil filter?

A: The 2007-2009 oil filter shares the same service interval, so tackling both at once keeps your maintenance on a single schedule. Our 2007-2009 Fuel + Oil Filter Kit bundles this separator with the matching 5083285AA oil filter in a single order.

  • 5 stars: 2 (22%)
  • 4 stars: 5 (56%)
  • 3 stars: 2 (22%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
Some of the reviews shown are from related products the merchant grouped with this one.
R
Rusty Hightower
10-micron synthetic media and water separation in the FS43257

2007.5 Ram 3500. The FS43257 is the primary fuel/water separator on the 2007-2009 6.7L. This TruckTok version uses Racor-spec synthetic media with a water-coalescing membrane. The center tube is reinforced to prevent collapse under vacuum from the CP3 lift pump. Changed mine at 15K miles and the media was dark but intact with no tears. The water separator bowl had the usual condensation. Good filtration keeps the injectors happy on these trucks.

D
Dusty Prather
5083285AA: one oil filter for 17 years of 6.7L Cummins

2022 Ram 2500. The 5083285AA oil filter fits every 6.7L Ram from 2007.5 through 2024. Toyota engineers designed the Cummins oil system right. This TruckTok filter has the correct thread pitch, bypass valve calibration, and full-synthetic media with crimped metal end caps. The filter housing cap threads on smoothly and the O-ring seats properly. I run Rotella T6 5W-40 at 7500-mile intervals and the filter holds up perfectly. Same filter whether you have a 2008 or a 2024.

C
Colt Prather
FS43257 is the early filter, do not buy the 2010+ one by mistake

2007.5 Ram 2500. The 2007.5-2009 6.7L Cummins used a specific fuel filter housing that takes the FS43257. In 2010, Ram changed the housing and the filter is different. This TruckTok set has the correct early filter. The oil filter (5083285AA) and air filter (53034051AB) are the same across all 6.7L years, so this set covers your engine filters perfectly. One order, three filters, no wrong part numbers.

H
Hank Boudreaux
Water separation on the FS43257 saved my CP3

2009 Ram 2500 with 210K miles. I drain the fuel filter housing water separator every oil change and there is always a little water in there, especially in winter. This TruckTok FS43257 has the correct Aquabloc-treated membrane that coalesces emulsified water. The CP3 pump on the early 6.7L is more forgiving than the CP4, but it still does not like water. 210K on the original CP3 says the filtration is working. The 5083285AA oil filter is the same quality as Mopar at a better price.

W
Waylon Hightower
5013470AE: 2019+ 68RFE external spin-on filter

2021 Ram 2500 with the 68RFE. The 2019+ 68RFE uses an external spin-on transmission filter on the passenger side of the transmission case. If this filter clogs, the cooler bypass opens and you cook the clutch packs. This TruckTok 5013470AE has the correct 20-micron cellulose media and anti-drainback valve. The filter spins on smoothly and the gasket seals without a wrench. Changed at 30K during a fluid service and the magnet inside was clean. The 68RFE is a good transmission if you change the fluid and filter.

D
Dusty Boudreaux
53034051AB fits every 6.7L Ram from 2007.5 through 2024

2020 Ram 3500. The air filter for the 6.7L Cummins has not changed in 17 years, 53034051AB fits them all. This TruckTok replacement has the same dry synthetic media and pleat count as the Mopar filter. The perimeter seal is a thick foam gasket that compresses into the airbox channel. Pulled it at 20K miles after gravel road duty and the clean side of the airbox was spotless. The turbo inlet looked new. If you have a Ram 6.7L, this is your air filter.

C
Colt Weatherby
FS43257: correct for the 2007-2009 filter housing

2008 Ram 2500. The early 6.7L Cummins (2007.5-2009) uses a specific fuel filter housing that takes the FS43257. The 2010+ trucks use a different filter, Mopar 68157291AA. This TruckTok FS43257 has the correct dimensions for the early housing: right height, right O-ring groove, right water drain valve clearance. The cap spins on smoothly and the water-in-fuel sensor connector fits without forcing. No diesel weeping around the cap. If your Ram is 2007.5-2009, this is your filter.

R
Rusty Weatherby
Early 6.7L Cummins filter kit: fuel, oil, and air in one box

2008 Ram 3500. The 2007.5-2009 6.7L uses a different fuel filter housing than the 2010+ trucks. This TruckTok set has the correct FS43257 fuel/water separator with the early HFCM fit, the 5083285AA oil filter with the correct bypass valve, and the 53034051AB dry-media air filter. Everything fits. The fuel filter cap O-ring is the right thickness and the air filter seals the airbox tight. My 6.7L has 190K miles and these filters have been doing the job since 100K.

B
Beau Fontenot
FS43257 fuel filter plus 5083285AA oil filter: exactly what the early 6.7 needs

2008 Ram 3500 dually. This combo pairs the correct early fuel/water separator with the Cummins oil filter. The FS43257 has the 10-micron media with water-stripping membrane. The 5083285AA has the correct bypass valve pressure and anti-drainback diaphragm. I change the oil every 7500 miles and the fuel filter every 15K. Fuel pressure at the CP3 is steady and oil analysis shows normal wear metals. Two filters, one box, done.