We use cookies to enhance the security, performance, functionality and for analytical and promotional activities. We use cookies to personalize ads for you. By continuing to browse this site you're agreeing to our Privacy PolicyWe use cookies to enhance your experience and personalize ads. By using the site, you agree to that. Privacy Policy

10 bestTransmission Leak Sealerof May 2025

112M consumers helped this year.

1

ATP AT-205 Re-Seal Stops Leaks, 8 Ounce Bottle
ATP AT-205 Re-Seal Stops Leaks, 8 Ounce Bottle

ATP Automotive

9.8

View Product
Buy it on Amazon

2

LUCAS LUC10009 Transmission Fix 24 oz, Brown
LUCAS LUC10009 Transmission Fix 24 oz, Brown

Lucas Oil

9.6

View Product
Buy it on Amazon

3

Bar's Leaks 1400-4PK Transmission Repair-It, 16.9 oz (Pack of 4)
Bar's Leaks 1400-4PK Transmission Repair-It, 16.9 oz (Pack of 4)

Bar's Leaks

9.4

View Product
Buy it on Amazon

4

Bar's Leaks 1414 CVT Transmission Fix - 11 oz.
Bar's Leaks 1414 CVT Transmission Fix - 11 oz.

Bar's Leaks

9.1

View Product
Buy it on Amazon

5

Bar's Leaks 1334-5PK One Seal Stop Leak - 11 oz, (Pack of 5)
Bar's Leaks 1334-5PK One Seal Stop Leak - 11 oz, (Pack of 5)

Bar's Leaks

8.9

View Product
Buy it on Amazon

6

BlueDevil Transmission Sealer
BlueDevil Transmission Sealer

BlueDevil Products

8.6

View Product
Buy it on Amazon

7

Permatex 81180 Automatic Transmission RTV Sealant, 3 oz. Tube , Gray
Permatex 81180 Automatic Transmission RTV Sealant, 3 oz. Tube , Gray

Permatex

8.3

View Product
Buy it on Amazon

8

MANNOL Getriebeoel Leak-Stop 9968 ELIMINATE LEAK through Rubber| Plastic seals | Gaskets | Manual transmissions | Board gearboxes | Compatible with any oil | IMPORTED FROM GERMANY (250ML)
MANNOL Getriebeoel Leak-Stop 9968 ELIMINATE LEAK through Rubber| Plastic seals | Gaskets | Manual transmissions | Board gearboxes | Compatible with any oil | IMPORTED FROM GERMANY (250ML)

MANNOL

8.0

View Product
Buy it on Amazon

9

Bar's Leaks 1420-6PK Transmission Stop Leak - 11 oz., (Pack of 6)
Bar's Leaks 1420-6PK Transmission Stop Leak - 11 oz., (Pack of 6)

Bar's Leaks

7.7

View Product
Buy it on Amazon

10

Rislone 4502 Transmission Stop Slip with Leak Repair - 32 oz.
Rislone 4502 Transmission Stop Slip with Leak Repair - 32 oz.

Rislone

7.4

View Product
Buy it on Amazon
subscribe-icon

Best Reviews Guide Newsletter

Get exclusive articles, recommendations, shopping tips, and sales alerts

By submitting your email address you agree to our Terms and Conditions and Privacy Policy