Generally, the labor cost for replacing the rear main seal can range from around $400 to $600, depending on the complexity of the job and the hourly rates charged by the mechanic. The part itself, the rear main seal, may cost around $50 to $150. Additional expenses such as shop supplies and taxes may also be added to the total cost, leading to a total cost estimate ranging from approximately $450 to $750.
It's important to obtain quotes from several reputable auto repair shops to compare costs and ensure you are getting a fair and reasonable price for the service. Keep in mind that the actual cost may vary based on specific circumstances, so getting an accurate estimate directly from a mechanic or auto repair shop is recommended before proceeding with the repair.