Rear Main Seal | Shaar’s Cars

Seals the rear of the engine’s crankshaft to prevent oil leaks.

The rear main seal set includes seals and gaskets that prevent oil from leaking from the rear of the engine's crankshaft, maintaining proper engine lubrication and preventing damage due to oil loss.

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Typical part cost

$50–$150🔒

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Typical labor cost

$300–$600🔒

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Typically lasts

100,000–200,000 mi

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Or about

7.0–10.0 years

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DIY difficulty

7/10

⚠️ Owners Often Notice

If the Rear Main Seal is starting to fail, these are the signs owners most commonly report before it gets worse:

Oil leaks

Low oil pressure

Engine oil loss

Engine knocking

Related Services

Services commonly performed on or around this part.

Replace Rear Main Seal

No standard interval on file

Inspect Rear Main Seal

No standard interval on file