GM 8L45//8L80/8L90 Transmission Pan

The GM 8-speed transmission has faced several issues, including excessive vibration and harsh or delayed shifts. Many of these problems can stem from low or inconsistent transmission fluid pressures. Transmission fluid pressure is closely tied to fluid temperature: as temperature rises, fluid viscosity decreases, requiring the oil pump to work harder to maintain the desired pressure. However, if the transmission fluid viscosity becomes too low due to overheating, the pump and valve body may struggle to maintain sufficient pressure. This is why AC-Delco developed the Dexron HP ATF - its stable viscosity profile helps minimize pressure fluctuations caused by temperature changes.

The PPE 8L45/8L90 Deep Cast aluminium Pan does the same thing – regulating the transmission heat and keeping the transmission fluid viscosity in a desirable range. Cast from high-grade A356.0-T6 aluminium alloy, it offers 3.9 quarts of additional fluid capacity, ensuring long-lasting heat management and performance. The deep external cooling fins maximize the heat-wicking surface area, effectively dissipating heat to keep your transmission cool under pressure. These fins also add strength to the bottom of the pan and enhance impact resistance.

The built-in baffles at the bottom of the pan increase contact between the fluid and the pan’s cast surface, enhancing heat transfer. These baffles also reduce fluid sloshing, ensuring consistent fluid pickup and stable transmission performance.

This kit also comes with three CNC machined aluminium filter supports and a fluid level check standpipe. The drain plug and the level check plug are both equipped with a powerful, high-temperature-rated neodymium magnet that captures ferrous metal particles, providing additional protection for your transmission.

Keep your GM 8-speed transmission running longer, healthier, and cooler with PPE.

Replacement filter available for purchase separately SKU 128058500.

OEM equivalent GM P/N for reference: 24045041 , 24278775 , 24045038 .

Features:

3.9 quarts of additional fluid capacity
Precision cast using permanent steel molds
High-strength A356.0-T6 aluminium alloy
External fins improve heat dissipation, lower fluid temps, and increase strength
Internalbaffles increase heat dissipation and reduce fluid sloshing
Stainless steel service plugs equipped with neodymium magnet and Viton O-ring
Filter supports ensure proper filter placement
Fluid level check standpipe included