Mishimoto Transmission Cooler for 2017-2019 L5P Duramax GM 2021 1-RFA) can be purchased separately

1-RFA) can be purchased separately for $160

Fuel Feed Hose (For those retaining the factory fuel filter)

One would think that major improvements would come at a major price increase

2 high pressure pump

Exergy has also flow tested the valve with the upgraded filter and there is no measurable loss of pump performance with the finer screen

Mishimoto Transmission Cooler for 2017-2019 L5P Duramax GM 2021 1-RFA) can be purchased separatelyPRODUCT FEATURESDirect fit for all 2017 2019 Chevrolet GMC 6. 6L Duramax (L5P)*Stacked plate construction for maximum durability and superior coolingCNC machined adapters make it easy to connect Mishimoto cooler to stock fluid lines or AN lines67% greater core volume than stock cooler164% greater external fin surface area over stock coolerMishimoto Lifetime WarrantyDESCRIPTIONTheres no greater enemy for a transmission than heat. Whether your 2017 2019