Engine
Cambelt and water pump
Checked on 1 January 2026.RAC, Guide to timing belt replacements (as of 1 January 2026)
What does cambelt and water pump cost in the UK?
£200 to £550 fitted at an independent garage, VAT included, on a mainstream car. The midpoint of that range is about £375, and where you land inside it is decided by access, parts and wheel size rather than by the garage's postcode.
Covers, ancillary belts and often an engine mount come off, the new belt goes on with the timing locked, and the tensioner and idlers are replaced with it as a kit. The water pump is usually driven by the same belt, so it is replaced at the same time, since doing it later means paying the same labour again. ClickMechanic put the belt at £300 on average within £200 to £500, from an hour and a half to over five hours with an average of 2.7. The RAC quote an average of £469, from £385 on a Kia to £540 on a BMW. A franchised network publishes £569 to £759 for a belt and water pump kit. Three things move the price: whether the pump and thermostat go on with it, how much has to come off to reach the belt, which on transverse engines can mean lifting the engine slightly, and whether the engine uses a wet belt running in oil, which has its own shorter interval and its own parts.
How this job compares
| Job | Area | Fitted price |
|---|---|---|
| Front wiper blades | Visibility | £19 to £45 |
| Cambelt and water pump | Engine | £200 to £550 |
| Exhaust section or full system | Noise, emissions and leaks | £100 to £1,200 |
Common questions
- How much does cambelt and water pump cost?
- £200 to £550 fitted at an independent garage, including VAT, for a mainstream car. A franchised dealer publishes £569 to £759 for the same work.
- How urgent is it?
- Nothing inspects a cambelt, and everything about the engine surviving depends on it. A cambelt is replaced on time and mileage, not when it looks worn, because on most engines a snapped belt bends the valves and the repair costs more than the car. If you are buying a used car and there is no receipt for the belt, assume it has not been done and price it in.
- What moves the price within that range?
- Access, parts and wheel size, mostly. A job that needs the bumper or an arch liner off costs an hour more than the same job on a car where it does not, and a genuine part can be several times an aftermarket one.
- Is this price for one side or both?
- Treat the range as the job as the source published it. Where a part is replaced in pairs the detail below says so, and the second side adds less than double because the labour overlaps.
Sources
Every figure on this page was read off the publisher's own page on the date shown.