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Porsche > 993 (911) (1994-1998) > 993 (911) TURBO S 1994-97 > Engine Rebuild Parts >

Camshaft covers / Gaskets

Camshaft covers / Gaskets

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Valve covers (SET OF 2) UPPER. Porsche 993 Billet aluminium - 99310511505 - M13
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Valve covers (SET OF 2) UPPER. Porsche 993 Billet aluminium
M13
Product Information
Product Information
Rennline Billet Aluminium Valve Cover replaces OE 99310511505 UPPER.
SET OF 2

rennline

Fits:
Porsche 993 1995-98
Porsche 993 Turbo

Tired of oil puddles in the driveway? Rennline has the solution with our new billet, fully CNC machined valve covers. These valve covers are a direct bolt on replacement for your flimsy leaking factory covers, and are machined to accept the reusable OEM gaskets (available separately). With the corrosion resistant finish, chamfered edges, and tight gasket fitment, these valve covers are simply the best on the market. Available in Anodized clear or black finishes, or powdercoat red all with or without the fins brushed. Also included are the spark plug wire retainers and retainer hardware for a clean installation.

Note: Pictures may not show actual product.

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Related, superseded, cross reference or alternative numbers for comparison.

M13
99310511505

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About Camshaft covers / Gaskets

Camshaft Covers & Gaskets – Engine Protection and Leak Prevention for Porsche Engines

Camshaft covers and gaskets play a vital role in sealing and protecting your Porsche’s engine. The camshaft cover (often called a rocker cover or valve cover) encloses the top of the engine, shielding internal components like the camshaft, valves, and timing chain from debris, oil loss, and contaminants. The gasket provides an airtight seal between the cover and cylinder head, preventing oil leaks and maintaining proper engine lubrication.

At Design911, we supply a wide range of genuine and high-quality camshaft covers and gaskets for numerous Porsche models such as 356, 924, 944, 928, 911, Boxster, Cayman, Cayenne, Macan, and Panamera models. Each component is engineered for a perfect fit and superior durability, ensuring long-lasting sealing and protection for high-performance Porsche engines.

What Do Camshaft Covers & Gaskets Do?

These components are essential for engine integrity and performance. Their functions include:

Sealing the camshaft area to prevent oil leaks and contamination. Protecting internal components from dust, dirt, and debris. Maintaining crankcase pressure balance for efficient engine operation. Reducing oil consumption and ensuring consistent lubrication.

Proper sealing is critical for preventing oil leaks that can affect engine performance or damage ignition components.

Why Do Camshaft Covers & Gaskets Fail?

Camshaft covers and gaskets are subjected to extreme heat, vibration, and pressure, which can cause material fatigue and degradation over time. Common causes of failure include:

  • Heat cycling causing gasket hardening and cracking.
  • Oil contamination breaking down gasket material.
  • Warped or corroded covers reducing sealing effectiveness.
  • Improper installation or overtightening of bolts.
  • Age-related wear and long service intervals.

Signs of failure include visible oil leaks, burning oil smell, engine misfires, or oil residue around the camshaft cover area.

Why Replace Camshaft Covers & Gaskets?

Replacing damaged or leaking camshaft covers and gaskets ensures proper sealing, protects internal components, and prevents oil loss. Neglecting these parts can lead to oil contamination, engine misfires, or even long-term engine damage.

Benefits of replacement include:

  • Eliminates oil leaks and residue buildup.
  • Prevents damage to ignition coils and spark plugs.
  • Improves engine performance and longevity.
  • Ensures clean, efficient lubrication with manufacturer-quality sealing.

All components available at Design911 are crafted from high-grade aluminium, composite, or reinforced rubber materials, ensuring superior sealing performance and heat resistance for long-term reliability.

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