Map Sensor 3 Bar Gm Style Universal with Harness High torque loads cause the

High torque loads cause the race to fracture at two stress points: the radial lube holes that contact the rollers and the sharp inside corners at the base of the outer splines

the area where the spring sits takes a beating

These Speedmaster 3-step module selectors are designed for great versatility

such as off-road

Replacement Spring Shim for PC12004 A-Arms

Map Sensor 3 Bar Gm Style Universal with Harness High torque loads cause theSpeedmaster sensors measure the load being placed on the engine by monitoring the intake manifold vacuum. It relays the load output to the ECU which adjusts the fueling for optimum performance and economy.