10 bestRadiator Repairof December 2025
112M consumers helped this year.
10% off
1
EPAuto Spill Proof Radiator Coolant Filling Funnel Kit
EPAUTO
9.7
2
K-SEAL Coolant Leak Repair, ST9501 472ml Multi-Purpose Formula Stops Leaks in the Radiator, Head Gasket, Block, Water Pump Casing, Heater Core, Freeze Plug - Pour and Go - Designed for Canadian Market
K-Seal
9.4
3
Hy-Poxy H-455 Alumfast 6.5 oz Rapid Cure Aluminum Putty Repair Kit
HY-POXY
9.1
4
J-B Weld KwikWeld Pro
JB Weld
8.8
45% off
5
J-B Weld FiberWeld 2" x 36" Automoitve Repair Cast, Black (38237)
JB Weld
8.5
OtherUp to 20% off
AM Worldwide Pliers C - Closing Header Tool for Car and Truck Radiator Tabs - Aluminum Radiator Repair Tool
Acymner Radiator Pressure Tester Kit | 18PCS Coolant Pressure Tester Kit,Radiator Pressure Pump Cooling System Car Leak Tester Detector Tool Water Tank Adapter Auto Coolant Vacuum Purge Head Gasket
ACDelco Cooling System Seal Tablets, 5-4 grams, Pack of 5
Bar's Leaks HDC Radiator Stop Leak Tablet - 60 Grams
6
Permatex VersaChem Muffler Weld Sealer, 170g 90334
Versachem
8.2
16% off
7
J-B Weld 8267 Steel Stick Steel Reinforced Epoxy Putty Stick - 2 Ounce
JB Weld
7.9
8
K-Seal ST5516 HD Multi Purpose One Step Permanent Coolant Leak Repair
K-Seal
7.6
9
Plastic Radiator Tank Repair Kit
Polyvance
7.3
10
K-Seal ST5501 Multi Purpose One Step Permanent Coolant Leak Repair
K-Seal
7.0
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