TenBest

10 Best Radiator Stop Leaks

Updated November 2024

Top Choice

K-Seal ST5501 Multi Purpose One Step Permanent Coolant Leak Repair

K-Seal

9.6

View Price
Compare prices

Bar's Leaks 1109 Block Seal Liquid Copper Intake and Radiator Stop Leak

Bar's Leaks

9.5

View Price
Compare prices
lowest price

Bar's Leaks HDC Radiator Stop Leak Tablet - 60 Grams

Bar's Leaks

9.3

View Price
Compare prices

Bar's Leaks Liquid Aluminum Stop Leak - 16.9 oz

Bar's Leaks

9.0

View Price
Compare prices

Liqui Moly 20132 Radiator Stop Leak, 8.45 Fluid Ounces

Liqui Moly

8.6

View Price

K-Seal ST5516 HD Multi Purpose One Step Permanent Coolant Leak Repair

K-Seal

8.4

View Price
Compare prices

BAR'S LEAKS 1196 Concentrated Radiator Stop Leak, 11oz

Bar's Leaks

7.9

View Price
Compare prices

Dike Temporary Radiator Stop Leak

Conklin Dike Temporary Radiator Stop Leak

7.7

View Price

Bar's Leaks PLT11 Pelletized HD Radiator Stop Leak - 11 oz

Bar's Leaks

7.4

View Price
Compare prices

Wynn's Radiator Stop - Leak 10.99 oz Stop Small Leaks Cooling System

Wynn's

7.0

View Price

Other products you may be interested in

Coolant Stop Leaks