Blue Devil Rear Main Sealer (8 oz.)

Blue Devil Rear Main Sealer (8 oz.)
Item #:BLU00234
Availability:Usually ships the next business day
Our Price:$13.95
Ground Shipping Only. No PO Boxes

Blue Devil Rear Main Sealer permanently seals rear main leaks. Just add to engine oil to restore and seal the gaskets.




  • Guaranteed permanent seal

  • Restores dried, cracked,
    and shrunken rubber seals

  • Works in gas or diesel engines


How large of a leak does it repair?

Blue Devil will seal leaks in any fluid systems that are seeping or dripping.


How much do I use?

Use 1-8oz. bottle to treat leaks up to 8 quarts capacity.


How long does the repair take?

Start engine and drive vehicle or equipment to let Blue Devil circulate.
The repair is sealed while you drive (up to 2 days drive time).

Product Reviews for Blue Devil Rear Main Sealer (8 oz.)

  • "Seems like a good website, easy to use and fair prices." (2/27/19)

  • "Good price and got what i want from the web" (2/26/19)

  • "Good prices, easy online purchase procedure." (2/20/19)

  • "From product selection to competitive product pricing to order execution (start to finish) to order fulfillment... communications as and if required...couldn't ask for a better 'partner' to accomplish my projects using Auto Barn's items." (2/19/19)

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