Chevrolet Trailblazer Rear Main Seal Replacement Cost.

The average cost for a Rear Main Seal Replacement is between $797 and $1011. Labor costs are estimated between $774 and $977 while parts are priced between $23 and $34. Estimate does not include taxes and fees.
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Learn More About Rear Main Seal Replacement Cost

Best Practices

Replacement of the rear main seal requires removal of the transmission. Due to this labor intensive job, shops will often suggest having the rear main seal replaced anytime the transmission is removed.

The rear main seal may also be referred to as the "rear crankshaft seal."

Common Symptoms

When a Chevrolet Trailblazer rear main seal leaks, engine oil will often be found dripping from between the engine and the transmission.

Most Common Chevrolet Trailblazer Repairs

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