Deliver to Panama

For best experience Get the App

DOWNLOAD THE APP

WE SOURCE ITEMS FROM

UAE
UK
India
USA
Japan
KOREA

Customer Services

About Us

Customer Support

Wynn's Radiator Stop-Leak - Seals Radiator & Head Gasket Leaks - Prevents Corrosion & Rust - Compatible with All Coolants/Antifreeze & OAT Fluids - Safe for Hoses & Sensors - 325ml

Wynn's Radiator Stop-Leak - Seals Radiator & Head Gasket Leaks - Prevents Corrosion & Rust - Compatible with All Coolants/Antifreeze & OAT Fluids - Safe for Hoses & Sensors - 325ml

Q: Do you just add to radiator whilst full or do you have to drain radiator first ?

If your radiator is full,then it sounds like you don't need it. But if you can't see the water, then pour the stuff in and top up with water. Then away you go. Don't forget to check later on.

Q: What colour liquid is this please ? Will it change the coolant colour. thx

No, it won't change the coolant colour - it's the colour (and texture) of wallpaper paste

Q: Hi will this work on my heater core ?

Not sure - I think it would depend where in the core the leak is and what material it's made from (so probably unlikely to work with plastic components or leaks from pipe attachment points, for example). But considering how difficult most heaters are to replace it's got to be worth a try.

Q: Could this be used for central heating as I have small drip at bottom of radiator

Radiator stop leak is designed to mix with car coolant running at much higher temperatures than domestic boilers. Plus the mix ratio would be out. Wouldn't know how many litres of water in heating system. Can understand why hypothetically it could work but don't try it. If its an emergency fix try using CT1 sealant on the external section where leak is on radiator if you can see it. (Not in the radiator!)

Product ID: 47966303

Secure Transaction

Details

Material
Rubber
Brand
Wynn's
Style
Compact
Item weight
0.37 Kilograms
Item dimensions L x W x H
18 x 34 x 92

🔥Prevents overheating & coolant loss

🛠️325ml advanced sealant volume

🛡️Protects against corrosion & rust

Description

🛠️ Seal leaks, stop stress — keep your engine running flawless!

CORROSION DEFENSE - Advanced rust and corrosion protection extends cooling system lifespan and reduces costly repairs.
SYSTEM SAFE FORMULA - Non-aggressive on hoses, gaskets, and sensors—preserves flexibility and prevents blockages.
LEAK PROOF CONFIDENCE - Seals minor radiator & head gasket leaks fast, keeping your engine cool and reliable.
PRECISION TEMPERATURE CONTROL - Maintains accurate sensor readings to avoid overheating and optimize engine performance.
UNIVERSAL ENGINE COMPATIBILITY - Works seamlessly with petrol, diesel, LPG engines and all coolant types including OAT fluids.

Wynn's Radiator Stop-Leak is a 325ml high-performance sealant designed to quickly fix minor leaks in radiators and head gaskets. Compatible with all coolant types including OAT fluids, it protects hoses and sensors while preventing corrosion and rust. Ideal for petrol, diesel, and LPG engines, it ensures accurate temperature control and prolongs cooling system life.

Have a Question? See What Others Asked

Do you just add to radiator whilst full or do you have to drain radiator first ?

What colour liquid is this please ? Will it change the coolant colour. thx

Hi will this work on my heater core ?

Could this be used for central heating as I have small drip at bottom of radiator

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Imran F.

Very reliable shop with genuine products. Will definitely buy again!

2 weeks ago

Zainab N.

Fantastic and great service. Shipping was faster than expected.

1 week ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

B/.33

Duties & taxes incl.

Panamastore

Free Returns

30 daysfor PRO membership users

15 dayswithout membership

Secure Transaction

ChatGPT - opens in a new tab Perplexity - opens in a new tab Claude - opens in a new tab Grok - opens in a new tab Google AI - opens in a new tab

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Farhan Q.

The delivery time was excellent, and the packaging was secure.

2 months ago

Fatima A.

Best international shipping I've ever tried. Worth every penny!

3 days ago