Bar's Leaks Rear Main Seal Repair Additive, 16.9 oz

Bar's Leaks Rear Main Seal Repair Additive, 16.9 oz
Model: F19-1040
(392)
2 stores
3 Products

Product Details

Most rear main seal leaks are caused by a combination of normal wear in the crankshaft & seal and the drying, hardening and shrinking of the main seal. Bar’s Leaks Rear Main Seal Repair restores the seal to like new condition and also contains additives to stop leaks in severely worn seals and crankshafts. Compatible with all petroleum based engines oils including high-mileage and synthetic. Works with ALL vehicle types including gasoline, diesel and turbocharged. Specifically designed to seal rear main leaks, but also works better than a conventional stop leak on all other leaks. This includes the timing cover seal, cam seals, O-Rings and other gaskets. Item: 1040 Vehicle Type: Universal Automotive Additive Type: Oil Seal Repair

Bar's Leaks Rear Main Seal Repair Additive, 16.9 oz Stops All Oil Leaks Seals Timing Cover, Cam Seal, Rear Main Leaks Seal Restorer Seal Polymer Vehicle Type: Universal Automotive Additive Type: Oil Seal Repair

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Last Updated: 2025-09-01 21:52:00

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Product Specifications

Technical Details

Manufacturer -
Brand Bar's Leaks
Item model number F19-1040
Color Multicolor
Weight -
Height -
Depth -

Additional Product Information

Product Id 574508
User Reviews and Ratings
4.6 (392 ratings)
4.6 out of 5 stars
UPC 046087010402

Description

Seal Repair, Concentrated, Brown, Bottle, 0.93 @ 60 Degrees F Specific Gravity, For Use With Automotive, Specially Designed to Seal Rear Main Leaks, But also Works Better Than a Conventional Stop Leak On all Other Leaks. This Includes Timing Cover Seal, O-Rings and Other Seals & Gaskets Features For Use With: Automotive Item: Rear Main Seal Repair Color: BROWN Specific Gravity: 0.93 @ 60 Degrees F Type: Concentrated
Item Type: Seal Repair Brand: BAR'S LEAKS Manufacturer Part Number: 1040

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Bar's Leaks Rear Main Seal Repair Additive, 16.9 oz
Reviews: 392
app.ratings: (392)
Price:
$9.87 Visit walmart
3
(9 pack) Bar's Leaks Concentrated Rear Main Seal Repair, 16.9-oz.
Price:
$58.05 Visit walmart
4
(12 Pack) Bar's Leaks Concentrated Rear Main Seal Repair, 16.9-oz. (12 pack)
Price:
$79.92 Visit walmart

Top User Reviews and Ratings (10 total reviews)

(5)
Reviewed in the USA on Aug 22, 2025

[This review was collected as part of a promotion.] I noticed I had a small leak coming from under my car when I got under to look I noticed it was the rear main seal. I used this product and it fixed my car. It stopped leaking and it saved me from having to pull my engine and send it to the shop.

Anonymous • Review provider: walmart.com
(5)
Reviewed in the USA on Aug 09, 2025

[This review was collected as part of a promotion.] i've had a rear main engine leak on my truck for several years. the truck has been to 2 repair shops with only partial success in stopping the leak. after using Bars rear main seal, the leak is 80% stopped and i figure one more treatment should stop nearly all of the leak.

Anonymous • Review provider: walmart.com
(5)
Reviewed in the USA on Aug 06, 2025

[This review was collected as part of a promotion.] I had a fairly.good rear main leak on an.older ford fusion, work car. Not wanting to pull the engine and do a rear main, I looked into different products. I choose bars leak rear main sealer and on my first drive to work approx 60 miles, it had slowed the leak significantly. Within the next trip the leak is almost stopped. I expect to have a small leak as severe as it was but it's definitely much better. I'll be using this on the next oil change also.

Anonymous • Review provider: walmart.com
(5)
Reviewed in the USA on Aug 03, 2025

I have this 1992 F150 that has what I have determined to be a rear main seal leak and was afraid that I would have to pull the engine to fix it. On a whim I happened to be in the automotive store and saw this product and thought, "It's worth a try." I can't believe how much better my truck is and this has saved me a lot of time that I didn't have. Thanks so much for making this product!

Anonymous • Review provider: walmart.com
(5)
Reviewed in the USA on Jul 25, 2025

[This review was collected as part of a promotion.] About 2 years ago I developed a rear main seal leak in my SUV. I've used Bar's Leak products in the past, so I thought I would give their rear main seal repair formula a try. It has worked wonders and the vehicle is still on the road today because of this excellent product.

Anonymous • Review provider: walmart.com
Showing 1 to 5 of 10 reviews
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