Convertible Top Screw - 911 | 1999-2012 31121142088 1 main bearing journal prior

1 main bearing journal prior to assembling the crankcase halves

Increases horsepower by 20 whp (horsepower at the wheels)

Low Viscosity: Helps reduce engine friction and improve fuel economy

Porsche The Auxiliary Spring for Porsche 911 (07-11) is a helper spring designed specifically for your car

Perfect for discerning owners who value engine protection

Convertible Top Screw - 911 | 1999-2012 31121142088 1 main bearing journal priorConvertible Top Screw For Porsche 996 (1999 2004) 997 (2005 2012) Models. Genuine replacement convertible top screw engineered for Porsche 911 models 996 and 997. This precision fastener secures the convertible mechanism with OEM quality construction, ensuring reliable operation of your soft top system. Direct fit replacement part designed to restore proper tension and functionality. Essential maintenance component for 911 convertible owners seeking