TruckTok 2007-2010 Cummins ISX CM871 EGR Plug Kit Stage 2 Plates and Plugs Aluminum

Installed this kit on my 2007 Pete 379 at 680K miles when the EGR differential pressure sensor failed for the third time. Figured why keep throwing sensors at a system that is killing my engine. 290K miles later the truck has 970K on the clock and the bottom end is still tight. Blackstone reports show soot at 0.1% at 15K-mile oil changes instead of 1.8% at 10K. I credit this delete with doubling the life of my ISX.

When u delete u have to change the water pump to a 2007 without the egr port on it

I work on a fleet of 12 ISX-powered trucks. The CM871 EGR system is the single biggest source of downtime. Cooler failures, valve sticking, soot packing the intake. We have installed four of these TruckTok Stage 2 kits so far and every truck has come back cleaner on oil analysis and with fewer driver complaints. The kit is complete — you do not need to source anything separately. Plates and plugs are machined aluminum, not cast, so they will not crack.

The kit itself is solid — everything fit my 2008 ISX perfectly. But I made the mistake of installing it before having the demandate file ready. The truck threw every EGR-related code and went into derate. Had to wait two days for the tuner to send the file. Learn from my mistake: have the tune loaded before you turn a single bolt. Once the tune was in, the CEL cleared instantly and the truck has run flawlessly.

2010 Freightliner Cascadia. EGR cooler was clogged and the valve was stuck open, dumping soot into the intake. Dealer quote to replace everything OEM-style was $7500 parts and labor. I am an owner-operator — I don't have $7500 lying around. This plug kit plus a demandate tune cost me less than $1500 total. The truck runs cooler at highway speed and the turbo spools with less lag. If you are on the fence about deleting your ISX, just do it.

2008 Kenworth W900 with the CM871. Before delete I was averaging 5.8 mpg running I-80. After this plug kit, a tune, and a turbo swap I am at 7.1 mpg. That is $400 a week in fuel savings. The kit paid for itself in the first two weeks. The aluminum plates are thick and the mating surfaces are machined flat — no exhaust leaks. This is the best money an ISX owner can spend.

2009 Peterbilt 389 with the ISX CM871. EGR cooler ruptured at 420K and dumped coolant into cylinder 3. Caught it before it hydrolocked. Bought this Stage 2 plug kit — aluminum plates for the intake and exhaust ports, threaded coolant plugs for the block, and the EGR valve block-off. Had my mechanic install it in about 4 hours while doing a mandated overhaul. 30K miles later and the truck pulls better than it ever did with the EGR system. No more coolant consumption, oil stays clean past 15K miles.