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Wynn's Radiator Stop-Leak is a 325ml advanced sealing liquid designed to quickly and safely fix small leaks in radiators, cooling systems, and head gaskets. Its unique formula protects rubber and metal components, prevents clogging, and guards against corrosion and rust. Compatible with all coolant types and suitable for petrol, diesel, and LPG engines, it ensures optimal engine temperature and long-term system reliability.
| ASIN | B000297UG6 |
| Best Sellers Rank | 749 in Automotive ( See Top 100 in Automotive ) 21 in Antifreeze & Coolants |
| Brand | Wynn's |
| Colour | _ |
| Compatible Material | Aluminium, Metal, Plastic |
| Country Of Origin | United Kingdom |
| Customer Reviews | 4.3 out of 5 stars 2,171 Reviews |
| Global Trade Identification Number | 05411693558641 |
| Item Dimensions | 4 x 22 x 83 millimetres |
| Item Form | Liquid |
| Item Highlight | Prevents Corrosion & Rust - Compatible with All Coolants/Antifreeze & OAT Fluids - Safe for Hoses & Sensors |
| Item Type Name | Radiator Stop Leak |
| Item Weight | 0.36 Kilograms |
| Item dimensions L x W x H | 4 x 22 x 83 millimetres |
| Item weight | 0.36 Kilograms |
| Manufacturer | Wynn Oil UK |
| Manufacturer Part Number | 55864 |
| Material | Rubber |
| Model Number | WY55864 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Style | Compact |
| Style Name | Compact |
| Surface Recommendation | Metals and alloys commonly found in automotive cooling systems (e.g., aluminum, steel) |
| Unit Count | 325.0 millilitre |
| Water Resistance Level | Water Resistant |
| Water resistance level | Water Resistant |
M**E
Worked perfectly
Worked a treat, waterpump leaking but couldn't get it done until the cambelt was changed, it fixed the leak until it was done, definitely 5 star's
C**S
It really works!!
My car started leaking water from the cooling system, it slowly got worse yet we couldn't work out where it was leaking. I was having to top up my coolant every 2-3 days. Even my local garage said it's going to have to get worse before we can see where it's leaking!! Decided to buy some of this as the reviews were good, poured it in the radiator, drove it around 5 miles, no more leaks!! This has been in my car around 3 or 4 months now and still not had to top up my water. Fantastic stuff, will 100% recommend this product as it's solved my water leak. Obviously for major leaks or split hoses etc this will not be suitable.
S**N
Works well
Works well
P**Y
Unbelievably good
Great product it really did stop my leak.
P**L
Easy fix
Item arrived on time and well packaged. It was easy to use and there are simple instructions on the back of the bottle. I purchased this bottle because it comes in a larger quantity of 325 milliliters as opposed to most others that are only 250 milliliters I feel like this gives me better value for money at a price of £6.29 it was also cheaper than others available. It will enhance the durability of my vehicle cooling system and prevent further leaks
S**R
Didn’t work in my case
I tried this to fix what looked like a small leak in the coolant hoses system, it didn’t work in my case but didn’t cause any issues to my car.
F**K
Good
I have not tried it yet. Its not as if I can see any water leaking from my radiator but the water keep shortening. So I thought I should try this product
M**T
One of the best
I tried what i thought was the best on (K Seal) which didn't work. then i tried this stuff, miles better, worked a treat. If i need to stop a small leak now this is the stuff i would buy again.
E**O
prodotto ottimo (secondo me)
Ho comprato questo prodotto con mille dubbi e timori. La mia vettura è una Renault Kangoo di venti anni fa che, dopo anni di meritato servizio, ha pensato bene di bucare il radiatore dell'acqua di raffreddamento. Un radiatore nuovo costa, installato, più del valore della macchina (oltre 350 euro) e il mio meccanico mi ha suggerito di provare con un "turafalle" di tipo professionale che ha lui e che mi ha messo con una spesa di 20 euro. Purtroppo questo suo prodotto professionale non è stato molto efficace e, sia pure meno di prima, ho dovuto rabboccare spesso e volentieri il serbatoio di espansione del radiatore. Mi sono allora deciso ad ordinare questo prodotto da Amazon che è arrivato in un lampo e che mi pare abbia risolto il problema. Ho seguito alla lettera le istruzioni riportate sulla confezione e devo dire che, dopo una settimana non è stato più necessario rabboccare con l'acqua il circuito. Sono non soddisfatto, ma soddisfattissimo del prodotto al punto che, per ogni eventualità, ho deciso di acquistarlo per tenerlo di scorta in caso di brutti scherzi. Un consiglio munitevi di guanti da lavoro quando mettete il prodotto, perchè è molto facile bruciarsi con l'acqua bollente del radiatore quando si apre il tappo a vite, bisogna fare molta attenzione ma poi.....se i risultati sono questi, va tutto alla grande!
S**I
طريقة الاستخدام
حسب الاحتياجات
S**R
This sealant works.
This sealant was very helpful in stopping a small leak in my F150 cooling system. Been in there a year or so and still working.
B**A
Facile et pas cher comparé a un radiateur !
Bonjour Je confirme ce que dit le premier commentaire Produit très efficace Il suffit de laisser tourner le moteur ou de rouler quelques km chauffage a fond, le produit va vite circuler dans tout le circuit et colmater les petites fuite J'avais une fuite depuis des années qui s'aggravait, je devais mettre régulièrement du liquide pour compenser cette fuite, je ne savais pas que ce type de produit serait aussi efficace sinon je l'aurais utilisé bien plus tot De plus son pris est contenu et cette marque est réputée Je recommande ce produit
J**Y
Actualy seals leaks and not clog radiator or heater core...
Works awsome
Trustpilot
2 weeks ago
3 days ago