Porsche Rocker Arm Shaft (65-94) 901-105-342-05-OEM | OEM Engine Valve Train Component

Genuine Porsche Rocker Arm Shaft 901-105-342-05 for 911, 912, 930, and 964 models (1965–1994). OEM part ensures proper valve operation and precise engine performance. Perfect for rebuilds and restorations.

Maintain your Porsche engine’s legendary precision with the Rocker Arm Shaft (901-105-342-05). Designed to support and align the rocker arms, this genuine Porsche part ensures smooth valve movement and long-term reliability. Perfect for restorations, rebuilds, or performance maintenance, it fits all Porsche 911, 912, 930, and 964 engines from 1965 through 1994. Manufactured to exact factory specifications for flawless fitment and durability.

Key Features

• Genuine OEM Porsche Part – Manufactured to exact Porsche standards for a perfect fit and lasting reliability.

• Wide Model Compatibility – Fits Porsche 911, 912, 930, and 964 engines from 1965–1994.

• High-Strength Construction – Made from durable alloy steel designed to handle high heat and stress.

• Precision Machining – Engineered for tight tolerances to maintain rocker arm alignment.

• Complete Engine Fitment – Requires 12 shafts for a full engine rebuild (one per rocker arm).

• Direct Replacement – Simple installation; no modifications required.

• Ideal for Rebuilds or Repairs – Recommended when refurbishing valvetrain or replacing worn components.

Frequently Asked Questions (FAQ)

Q: What is the purpose of this rocker arm shaft?
A: The rocker arm shaft supports and secures each rocker arm in your engine, allowing smooth and precise valve operation under high-stress conditions.

Q: Which Porsche models is this compatible with?
A: It fits Porsche 911, 912, 930, and 964 engines produced from 1965 through 1994.

Q: How many rocker arm shafts are required per engine?
A: A complete engine requires twelve (12) rocker arm shafts — one for each rocker arm assembly.

Q: Can I reuse my existing rocker arm shafts?
A: You can reuse them if they are perfectly straight, undamaged, and within tolerance. However, replacement is strongly recommended during an engine rebuild to ensure optimal performance.

Q: Do I need to replace any related parts?
A: Yes, it’s best practice to replace the rocker shaft bushings (part 901-105-344-03) and bolts (part PCG-067-008-00) at the same time for full reliability.

Q: How do I install this part?
A: Installation is straightforward. Insert the shaft into the proper bore, ensure correct orientation, and torque to factory specifications using new hardware.

Q: Is this an OEM part or aftermarket?
A: This is a genuine OEM Porsche component manufactured to factory specifications.

Q: Does it come with a warranty?
A: Most genuine Porsche parts include a limited manufacturer warranty (typically 12 months). Always confirm with your supplier