Rocker arm shaft seal. Porsche 911 / 930 / 964 / 914-6  ❭  91109910352

Rocker arm shaft seal
The rocker arm shaft seal helps prevent engine oil leakage around the rocker arm shaft bore. A good seal supports correct valve train lubrication retention, reduces oil seepage from the camshaft housing area, and helps keep the engine clean and properly sealed.
Sold individually, 24 required per vehicle

Fits:
Porsche 911 1965 - 1989
Porsche 930 Turbo 1974 - 1989
Porsche 914-6 1970-72
Porsche 964 C2 / C4 1989-1994
Porsche 964 Carrera RS 3.6L 1992
Porsche 964 Turbo 3.6L 1993-94

Fits to number 25 on diagram.

This OE Match rocker arm shaft seal is designed to match the original-style fitment and help seal the rocker arm shaft area within the valve train assembly.

Functions
•  Replaces the rocker arm shaft seal
•  Helps seal the rocker arm shaft area
•  Helps prevent oil leaks from the camshaft housing / rocker area
•  Supports correct valve train oil control
•  Suitable for rocker arm shaft removal, refitting, or engine resealing
•  Replaces hardened, flattened, split, missing, or leaking original seals
•   OE Match replacement for classic Porsche engine repair and restoration.

Why Replace This Part?
Rocker arm shaft seals can harden, flatten, crack, split, or lose sealing ability due to heat, oil exposure, age, and repeated engine service. A worn or missing seal can allow oil to seep from the rocker shaft area, causing oil staining, drips, burning oil smells, or contamination around the camshaft housing. Replacing the seal helps restore a clean and reliable engine oil seal.

When to Replace This Part
•   Oil leaks are visible around the rocker arm shaft area
•   The rocker arm shafts have been removed or adjusted
•   Camshaft housing or valve train service is being carried out
•   The original seal is hard, split, flattened, or missing
•   Engine oil seepage is present after previous repairs
•   The engine is being rebuilt, resealed, or restored
•   Preventative replacement is being carried out during top-end service.

Where it fits on the car
This seal fits at the rocker arm shaft / camshaft housing area on Porsche 911, 930, 964, and 914-6 engines. It forms part of the upper engine valve train sealing system.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

91109910352

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