The short version
- Roughly $1,200 for the wet belt job on a 1.2 PureTech or 1.0 EcoBoost at TRW.
- The belt is the small part of that. The strainer clean, the seals and the right oil are the rest.
- Quotes differ because jobs differ: whether the sump comes off, what goes back new, and who sets the timing.
- If the belt measures fine on inspection, you do not pay for a belt.
Part of our engine series. What a wet belt is and which cars have one is on the wet timing belt guide.
- The first look. Engine warm, oil cap off, an inspection light down the filler neck and a width gauge on the belt. If it measures within limits, the job stops here.
- Access. Covers and vacuum pump off, locking tools into the crank and cams so the timing cannot drift.
- Old belt out, sump off. The strainer is cleaned or replaced, and the pump and the valve timing units are checked for rubber. This is the step a cheap job leaves out.
- Seals and gaskets. The crank seal, the vacuum pump gasket, the cam cover seal and the o-rings that came apart go back new.
- New belt and tensioner. Set to the maker’s tension, the engine turned through by hand twice, the timing checked again before the tools come out.
- Oil, filter, road test. The maker’s grade, because the new belt was designed around it, then a drive and a second look through the filler neck.
| What you are paying for | What moves it |
|---|---|
| Belt, tensioner and idler | Original box or the same maker’s OEM-grade part |
| Sump off, oil pump strainer cleaned, pump checked for rubber | Whether the sump comes off at all |
| Seals, o-rings and gaskets that come apart on the way | Replaced while it is open, or reused and left to weep |
| The maker’s oil grade and a new filter | The grade in the handbook, or whatever is on the shelf |
| Timing set with locking tools, turned by hand, road test | The person doing it |
| Total | Roughly $1,200 on an engine that has not yet been damaged |
The price is the belt plus everything the belt has touched. As a wet belt ages it sheds rubber into the strainer that feeds the oil pump, so a belt-only job leaves the cause of the next failure where it is. Stellantis’s own support scheme for these engines is written around an oil pressure problem caused by the belt degrading early. When you compare quotes, compare the list, not the number.
Why the belt is the cheap part
A dry timing belt sits outside the engine under a cover. A wet belt lives inside it, in the oil, so reaching it means the vacuum pump off, the cams locked so nothing moves, and the sump off for the strainer. The belt is the smallest line on the invoice; the access and the clean-up are the rest.
Why the range is wide
Workmanship first. Setting the timing with the belt inside the engine is done with locking tools, in order, and the engine turned by hand before anything is trusted. A belt one tooth out runs, badly, until it does not. The person doing the job is most of what you are paying for.
Then the parts. The belt in the maker’s box and the belt from the company that made it for the maker are often the same part with a different label. What we will not fit is a belt with no name on it.
Then the small items, where most cheap quotes make their saving: seals, o-rings, gaskets, the strainer clean, the correct oil. Nobody asks about them, so quotes leave them out, and they fail first. A reused crank seal weeps within days. A dirty strainer blocks again within weeks. Generic oil starts ageing the new belt from the first drive. Each one turns a single visit into two, and the second is dearer because something has now been damaged.
If a quote is a lot lower than ours, ask what is in it. How to read a workshop quote covers the questions line by line, and why the cheapest workshop usually costs more covers what happens when the answer is “just the belt”.
Three things owners tell us
When it costs more
The figure covers an engine that has not been damaged. Three findings change that, and the first look is where we find them: rubber already in the oil pump, which may mean a new pump; low oil pressure logged in the car’s memory or a bearing noise on the road test, which turns the belt job into a diagnosis first; and a belt that has already skipped, which means the head comes off to see what the valves and pistons did to each other, overhaul territory.
You get the finding, the photos and the number before any of it happens. If the number no longer makes sense against the COE left on the car, the five-or-ten checklist is the page to read first.
Six questions to ask before you pay anyone
Which brand is the belt, and is the tensioner included. Does the sump come off, and is the strainer cleaned or replaced. Which seals and gaskets go back new. Which oil grade goes in, and is it the one in the handbook. Are the maker’s locking tools used to set the timing. Is there a road test and a second look through the filler neck. A good workshop answers all six without blinking.
If the belt measures within limits on the first look and the oil history is clean, you drive out with a date in the service book and no bill for a belt. The first look takes about 15 minutes.
