Head Gasket Replacement Cost Calculator
Estimate the cost of a head gasket replacement. A blown head gasket is a major repair, the cylinder head comes off and is usually machined. The vehicle type and whether you use genuine or aftermarket parts are the main cost drivers, along with the labour to access the part.
Your head gasket replacement details
Your estimate sits within the typical range.
A head gasket job always includes machining (skimming) the cylinder head, so budget for that. On an older car, compare the repair against the car's value, a head gasket can approach it.
💰 Ways to save
- Aftermarket parts are cheaper than genuine and fine for most jobs, ask your mechanic which matters here.
- Do related wear parts at the same time while the area is already apart, it saves a second labour charge.
- Get a couple of quotes, labour rates and parts mark-ups vary a lot between workshops.
How we estimate this
A head gasket replacement in Australia typically costs around $1,500 to $3,000 in 2026 for a common 4-cylinder, rising to $3,500 to $5,000 for 6-cylinder, V8 and European engines. Machining the head is included in that.
Pricing reviewed: November 2026.
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Pricing reviewed November 2026. Indicative Australian costs, not a quote.
Understanding head gasket replacement costs in Australia
A head gasket replacement in Australia typically costs around $1,500 to $3,000 in 2026 for a common 4-cylinder, rising to $3,500 to $5,000 for 6-cylinder, V8 and European engines. Machining the head is included in that.
It is a major repair, the head comes off, is machined, and goes back with new gaskets and bolts. Labour dominates, especially on complex engines. On an older car, weigh the cost against the car's value.
Frequently asked questions
How much does a head gasket replacement cost in Australia?
Roughly $1,500 to $3,000 in 2026 for a 4-cylinder and $3,500 to $5,000 for larger or European engines, including machining the head. It is a major, labour-heavy repair.
Is it worth replacing a head gasket?
On a newer or valuable car, usually yes. On an older car, the cost can approach the car's value, so compare the repair against selling or replacing it.
Are you a mechanic / workshop?
Everyone on this page is working out what head gasket replacement costs because they are ready to hire. Put your business right beneath the calculator, in your state, so you are who they find. From $50/mo.