Head gasket replacement (V6 / flat-4 / twin-head engine): how much does it cost?
Typically NZ$3,860–NZ$7,330 in New Zealand and A$3,840–A$7,170 in Australia, including GST. Most cars.
| Parts (trade) | Labour | Sublet | Total incl GST | |
|---|---|---|---|---|
| New Zealand | NZ$700–NZ$1,600 | 16–26 h | NZ$450–NZ$1,000 | NZ$3,860–NZ$7,330 |
| Australia | A$600–A$1,400 | 16–26 h | A$400–A$900 | A$3,840–A$7,170 |
What affects the price
Both heads done together; parts = two gasket sets, bolts, timing parts often renewed while apart. Subaru EJ and Alloytec/Ford V6 sit mid-range; transverse V6 with rear bank access at the top. Sublet = machining both heads.
Other engine cooling repairs
- Head gasket replacement (4-cylinder)NZ$1,830–NZ$4,090
- Head gasket replacement (diesel ute, 4-cylinder)NZ$3,300–NZ$6,340
- Water pump replacement (belt-driven, not behind timing cover)NZ$340–NZ$770
- Water pump with timing belt kit (timing-belt-driven pump)NZ$770–NZ$1,970
- Water pump inside timing cover (chain engine)NZ$980–NZ$2,100
- Radiator replacement (Japanese car / small SUV)NZ$470–NZ$960
- Radiator replacement (ute / 4WD / European)NZ$780–NZ$1,850
- Thermostat and housing replacementNZ$200–NZ$780
- Radiator cooling fan motor or fan assemblyNZ$350–NZ$1,280
- Timing chain, tensioner and guides (4-cylinder)NZ$1,120–NZ$2,530
Researched by Credov in October 2026 from NZ and Australian parts suppliers and workshop price guides. Typical ranges, not quotes: ask a workshop for a quote before you rely on a price. All repair costs.