GM Engine Oil Cooler 2017-2019 GM 6.6L Duramax L5P 12732980 GM Engine Oil Cooler 2017-2019 GM 6.6L Duramax L5P 12732980For 2017, 2018, 2019 GM 6.6L Duramax L5PReplaces#Â 12678318 MSRP: Was: Now: $435.95 Add to Cart The item has been added