Pressure ring for rocker cover. Porsche 944 S / 944 S2 / 968 / 928 S4 / 928 GT  ❭  92810411502

Pressure ring for rocker cover.
A small sealing ring / pressure ring / rubber-grommet placed under valve-cover / rocker-cover bolts to seal the bolt hole and prevent oil from seeping past the fastener into the engine bay.
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Fits:
Porsche 944 S / 944 S2 1987 - 1991
Porsche 968 1992 - 1995
Porsche 928 S4 / 928 GT / 928 GTS 1987 - 1995

Diagram ref no 12.

This pressure ring creates a tight, oil-resistant seal around the valve-cover bolt holes, preventing leaks and keeping the cover seated properly. It maintains correct bolt clamping tension while protecting the aluminium cover from damage, and its heat-, oil- and vibration-resistant construction ensures long-term reliability under engine operating conditions. By replacing worn or hardened grommets, it restores proper sealing and supports clean, leak-free valve-cover installation during maintenance or gasket replacement.

Over time, pressure rings / bolt grommets degrade due to heat, oil exposure, and mechanical stress.
Worn seals can lead to:
• Oil seepage around valve-cover bolts
• Leaks dripping down into the engine bay or onto belts/harness
• Reduced engine bay cleanliness and potential fires in worst-case scenarios
• Difficulty obtaining proper clamping pressure when re-torquing the cover

Replacing the ring restores proper sealing, prevents future leaks, and ensures the valve cover remains securely mounted and sealed under all conditions.

When to replace - You should install new rings if:
• You are removing or replacing the valve cover or gasket
• Existing rings appear hardened, cracked, brittle, or deformed
• You notice oil leaking around valve-cover bolt heads
• You are performing engine maintenance or rebuilding the top end

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