6L80 BILLET PUMP ROTOR

The Billet Pump Rotor

The 6L80E did share one particular common bond with its predecessor: the pump rotor design. This proves to be rather unfortunate for the 6L80, because just as it shares the same design, it also shares the same failures. With increased performance comes the need for increased fluid volume and pressure. When upgrading to a 13 vane pump rotor, the additional vanes, while providing additional volume, inherently can cause a weakness due to the lack of material between the rotor blades. This will almost always cause failure in higher horsepower applications, often times causing catastrophic failure.

Upgrade your transmission’s reliability and performance with the TCS Products 13-vane billet steel pump rotor, specifically designed for GM 6L-series transmissions including 6L45, 6L50, 6L80, and 6L90. This high-performance component is a direct replacement for the OEM cast rotor, which is known to be a common failure point—especially under high load, added horsepower, or drag racing conditions.

The factory rotor, made from brittle cast iron, is prone to cracking or complete failure. When it lets go, it can take out your pump and potentially damage your torque converter. The TCS billet rotor solves this with a stronger design, precision-machined from 4140 HTSR steel to withstand increased stress and RPM without compromise.