Improves heat reduction 31% or more on 2001-2007 and 2011-2019 6.6L Duramax engines. The older the truck, the greater the gain. Ready for pressure or temperature sensor. Includes all necessary hardware and oil filter. At the heart of the new system is GM's 2020 Duramax L5P oil cooler. This cooler rejects heat 22% better at the factory-rated 450 horsepower when tested against the earlier 2017-2019 unit. The difference between the two coolers is even more apparent at higher engine speed and load. 3300 RPM, 600 HP tests show a 31% greater heat reduction over the stock 2017-2019 oil cooler. The higher the horsepower, the greater the improvement.
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IMPORTANT FITMENT NOTE:
This kit does not fit late 2007.5-10 LMM Duramax engines with factory EGR Cooler.
Features & Benefits:
- Cools 31% or better
- More cooling plates for better heat rejection
- Increased cooling stack surface area
- Pre-installed 1/8-inch NPT sensor port for temp or pressure
- Includes all hardware
- Includes AMSOIL EAO17 oil filter
- Fits Most 2001-2019 GM 2500/3500 Duramax Engines
- LB7, LLY, LBZ, LMM, LML & L5P