2011-2019 GM 6.6L Duramax EPC Blocker

PART NUMBER: 128041119GTIN: 840171221855 Features:   Increase clamping force to clutch packs Improve shift quality Increase ability to hold more horsepower Easy to install Easy alternative to transmission line pressure tuning This easy-to-install kit solves a big problem with the 2011-2019 Allison 1000 transmission... low mainline pressure. Mainline pressure is created by the transmission's oil pump. Mainline pressure is directed by the valve body to the applied 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 to hold the torque of the engine. When clutch packs slip they generate excessive heat which destroys the clutch pack material. The purpose of the EPC circuit is to modulate mainline pressure. Mainline pressure in a 2011-2019 Allison 1000 varies between 80psi to 230psi depend