DOWNLOAD THE APP
Customer Services
Copyright © 2025 Desertcart Holdings Limited
DOWNLOAD THE APP
🚗 Seal the deal, skip the shop—drive worry-free with Holts Radweld!
Holts Radweld Radiator and Coolant System Leak Repair (250ml) is a trusted, easy-to-use additive that permanently seals leaks in vehicle cooling systems. Compatible with a wide range of cars and trucks, it offers a cost-effective alternative to expensive repairs by quickly restoring optimal engine cooling performance.
| ASIN | B084MY4DH3 |
| Best Sellers Rank | 9,090 in Automotive ( See Top 100 in Automotive ) 110 in Fillers, Adhesives & Sealants |
| Brand | Holts |
| Customer Reviews | 4.5 4.5 out of 5 stars (102) |
| Date First Available | 12 Feb. 2020 |
| Item Weight | 256 g |
| Item model number | 1831470 |
| Manufacturer | Service Best |
| Manufacturer part number | 1831470 |
| Model | HREP0069A |
| Product Dimensions | 4.2 x 7.8 x 14.6 cm; 256 g |
L**N
Fixed my car
Did the job no more leaks
J**F
Car
Brilliant
M**S
Instructions not in English
Instructions in 12 languages but not English - for product made by a UK manufacturer!
A**R
Saved me £££s
Superb product. Saved me £££s
G**L
Radiator sealant
Did the job
P**G
Works a treat.
It did the trick of stopping a small leak.
C**E
Does the job
Seems to have done the job, good value for money. Easy to use.
M**R
Reasonable price.
Resonable price and did ok.
T**S
sehr guter Artikel,gerne wiedersehr guter Artikel,gerne wiedersehr guter Artikel,gerne wiedersehr guter Artikel,gerne wiedersehr guter Artikel,gerne wieder
M**N
My Opel Mokka used 5 litres of coolant in 6 weeks, I tried this and so far it is working I haven't topped up in 2 weeks. Make sure the engine is cold, add the radweld, start the engine and let it circulate. 👍👍
A**Y
Hat funktioniert, kann ich nur weiter empfehlen.
E**R
My Car lost up to 3 Liters Water within hours. After using the product this is stopped since weeks. Perfect
D**N
Hatte leider keine Wirkung, Wasserpumpe war defekt.
Trustpilot
3 weeks ago
3 weeks ago