Cheap Vauxhall Signum Engine Mount

The Signum was produced from 2003 to 2008 as a single generation, so mounts from within that range are your starting point, but fitment depends primarily on your engine code rather than the year alone. The engine code is stamped on the block and also appears on your V5 or a VIN check, and matching it exactly is the most reliable way to find a compatible mount. Different engines — for example the 1.8 petrol, 2.0 turbo, 2.2 direct injection, 3.0 V6 diesel, or 1.9 CDTi — each use their own mounting arrangements, so a mount from a different engine variant is unlikely to suit yours. Always confirm the engine code with your breaker before purchasing.

The Signum received a facelift around 2005, and while the core engine lineup carried over, there is a real possibility that ancillary and mounting details changed at that point for some variants. Because of that risk, we would not confidently say a pre-facelift mount crosses straight over to a post-facelift car without checking. Give your breaker your full engine code and registration so they can verify whether the mount from their donor vehicle matches yours. Naming the 2005 boundary to your breaker is a useful starting point for that conversation.

Trim level makes no difference whatsoever to engine mount fitment — the Elegance, Design, and Exclusiv trims all used the same engines and the same mechanical underpinnings. What matters is your engine code, fuel type, and gearbox type, none of which changed based on which trim the car left the factory with. You may find cosmetic or interior differences between trim levels on a donor car, but the mount itself will be identical if the engine codes match. Focus on the engine code and ignore the trim badge entirely.

The Signum shared its platform and engines with the Vectra C, so there is a reasonable chance that mounts from a Vectra 1.9 CDTi are compatible, as the engine code — typically Z19DT or Z19DTH — is the key variable. However, differences in body structure, subframe layout, or mounting position between the two models mean this is not guaranteed, and you should not assume they are identical. Confirm cross-compatibility with your breaker by supplying both registrations and engine codes so they can compare the parts directly. This is a common and worthwhile question to ask, but only a breaker with both vehicles in stock can give you a definitive answer.

Yes, the Signum has multiple engine mounts — typically a nearside (NS) mount, an offside (OS) mount, and a rear torque mount or gearbox mount — and they are not interchangeable with one another. When contacting a breaker, specify clearly which mount has failed, ideally using NS or OS and whether it is the engine mount or the gearbox mount, as these are separate parts. Your engine code will still be the primary matching detail, but the specific position of the mount is equally important to get the right unit. If you are unsure which has failed, a mechanic can identify the position before you search.