Head Gasket & Exhaust Sealant
Our range of head gasket repair products and exhaust sealants offer easy solutions to get your engine running smoothly and efficiently again. Whether you’ve got a leak, a blown head gasket, or want to prevent an overheated radiator - you can fix the issue at home with Halfords.
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From
£2.21
per month
Spread the cost
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£2.21
per month
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From
£3.08
per month
Spread the cost
From
£3.08
per month
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From
£1.79
per month
Spread the cost
From
£1.79
per month
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From
£2.79
per month
Spread the cost
From
£2.79
per month
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From
£2.54
per month
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From
£2.54
per month
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From
£14.75
per month
Spread the cost
From
£14.75
per month
Ways to apply
- Build your basket and select Trade Credit at checkout.
- Apply below to check your eligibility.
Activate your limit
- If eligible, receive your Trade Credit limit instantly.
- Authenticate your business with an ID check*.
*Only required on your first Trade Credit purchase.
Pay on account
- Complete your purchase and pay on account at the end of the following month.
- Enjoy no interest or transaction fees**.
**Late payments can impact your business credit
Already applied and have a limit? Approve your order via SMS to finalise your purchase.
Head gasket repair at home
Repairing a troublesome exhaust or, even worse, a head gasket, can be costly. Thankfully, we’ve got a wide range of exhaust repair kits and head gasket sealants to help experienced home mechanics do the job themselves. Professional mechanics love our products too as they offer a high-quality, affordable solution.
Head gasket symptoms
- An overheating engine is one of the most common symptoms of a blown head gasket.
- Your radiator needs to be constantly topped up with coolant.
- White smoke coming from the exhaust.
- Bubbling in the radiator or reservoir.
- Your oil is discoloured and milky.
About head gasket and exhaust sealant
Seal a cracked or blown head gasket with the power of steel by using the high-powered Steel Seal Head Gasket Repair Sealant. You might prefer a pour-in option like this, or you could use a flexible gasket sealant designed to withstand high temperatures and target specific areas. Exhaust silicone sealant cures quickly to provide a permanently flexible seal.
Exhaust repair products
Make repairs to holes and splits with a highly rated, easy-to-fit repair bandage, or useful Holts Gun Gum putty. Buy online or click & collect from your local Halfords store today.