PPE EPC Blocker Allison 1000 11-19 GM 6.6L LML L5P Duramax Bul-46501 This off road kit delivers

This off road kit delivers uncompromised ride and handling performance

which is why S&B makes their filters big and with deep pleats

This system bolts to the factory differential cover and wraps around the axle for a secure fit without cutting welding or drilling

this kit helps ensure the engine’s lower sealing surfaces remain protected and leak-free

for questions please contact our technical support team

PPE EPC Blocker Allison 1000 11-19 GM 6.6L LML L5P Duramax Bul-46501 This off road kit deliversOne of the biggest issues with the transmission in your 2011 2019 GM Duramax is low mainline pressure created by the transmissions oil pump. Mainline pressure is directed by the valve body to the apply pistons and creates clamping force on the clutch packs, allowing the clutch packs to clamp quickly and completely. Reduced mainline pressure, or not having enough mainline pressure at the right time means reduced clamping force and there won't be enough