Also known as

Rear Differential

Final Drive Assembly

Rear Axle Carrier

Pumpkin

Diff Assembly

What this part does

The rear differential is a critical drivetrain component that transfers power from the driveshaft to the rear wheels while allowing them to rotate at different speeds during cornering. Housed in a cast metal casing, it contains the ring and pinion gears bathed in lubricating fluid to minimize friction and heat. When this assembly begins to fail, you will typically hear a distinct whining, humming, or howling noise from the rear of the vehicle, particularly under acceleration or deceleration. Severe wear can also cause clunking when engaging a gear or vibrations at highway speeds.

Fits these vehicles

OEM and interchange numbers

95B525015F

95B-525-015-F

Before you order

Matching the gear ratio is mandatory; installing a differential with an incorrect ratio will cause severe drivability issues and trigger all-wheel-drive system errors. Always verify your original part number against the 95B525015F stamped on your current unit. Before installation, it is standard practice to drain any remaining fluid, replace the left and right axle seals, and refill the assembly with the exact specification of gear oil required by Porsche. Inspect the mounting bushings on the subframe as well, since they are much easier to replace while the assembly is removed.