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🛠️ Fix leaks fast, drive worry-free—because your ride deserves the best!
Gunk C551B Radiator Repair Powder is a powerful, easy-to-use additive that instantly stops radiator leaks and prevents new ones. Compatible with both water and antifreeze, it contains rust inhibitors and is safe for all cooling system components. Perfect for cars, tractors, and small trucks, it eliminates the need for draining unless the system is severely corroded, making it an essential emergency fix for any vehicle owner.
| ASIN | B00200OWLG |
| Brand | Gunk |
| Customer Reviews | 4.5 4.5 out of 5 stars (17) |
| Date First Available | 6 July 2019 |
| Item Weight | 454 g |
| Item model number | C551B |
| Manufacturer | Gunk |
| Manufacturer Part Number | C551B |
| Product Dimensions | 2.54 x 2.54 x 2.54 cm; 453.59 g |
P**S
Great to have in case you ever need it.
W**R
The best radiator sealer ever made. This was used for years when rebuilding an engine in the coolant system on start up. To assure the head gaskets sealed. Best stuff ever.
S**.
I have had good luck with this in sealing small radiator seepage. Has been holding for a couple years and no problems with blockage that I have seen. Cheep "fix"!
A**.
It not only didn't work it ruined thermostat, (stuck shut!)
K**S
It appears to be working just as it should.
Trustpilot
3 days ago
2 weeks ago