Cheap Mercedes-Benz Sprinter Glow Plugs

This is a critical generation boundary question: the second-generation Sprinter (W906) ran from 2006 to 2018, but Mercedes introduced the third-generation Sprinter (W907/W910) from 2018 onwards, bringing new engine families and different glow plug specifications. Within the W906 generation a plug from a 2014 truck may well interchange with another W906 of the same engine code, but crossing into the 2018-on W907 is a different matter entirely. Supply your engine code (from the V5 or a VIN check) to the breaker and confirm compatibility against your registration before ordering.

Glow plugs are purely a diesel-engine component — they pre-heat the combustion chamber to aid cold starting because diesel engines rely on compression ignition rather than a spark. The vast majority of Sprinter vans sold in the UK are diesel, so this is rarely an issue in practice, but if you somehow have a petrol or LPG-converted Sprinter, it will not have glow plugs at all. If your van is diesel, every engine variant across all Sprinter generations (W901–W905, W906, and W907/W910) uses glow plugs.

The engine code is the single most important detail — different Sprinter diesel engines (for example the older OM601/OM602 units in the W901–W905, the OM646/OM651/OM642 family in the W906, and the OM654/OM642 derivatives in the W907) use glow plugs of different thread sizes, tip designs, and voltage ratings that are not interchangeable. Fitting the wrong plug can damage the cylinder head or give poor cold-start performance. Find your engine code on your V5 logbook or via a VIN check and give it to the breaker before they pull the part.

No — body length and roof height make absolutely no difference to glow plug fitment; the plugs live in the engine, which is the same unit regardless of whether the van is a short-wheelbase low-roof L1H1 or a long-wheelbase high-roof L3H3. What matters is your engine code and fuel type, not the bodywork. Tell the breaker your engine code and registration and leave the body dimensions out of the conversation.

The OM651 four-cylinder diesel was used across a significant portion of the W906 Sprinter's production run and the plugs are generally consistent within that engine family, but Mercedes did make running production changes during the W906's 2006–2018 lifespan that can affect ancillary specifications. Give the breaker both your engine code and your registration so they can confirm the plug specification matches exactly before you commit to buying.

The badge numbers on a Sprinter indicate power output rather than a fundamentally different engine family — a 314 and a 316 may share the same basic engine block and therefore the same glow plugs, while a 319 with a V6 OM642 unit will need a different plug entirely to a four-cylinder OM651 316. Trim level and badge alone will not tell you what you need; the engine code is what matters. Confirm the engine code from your V5 or a VIN check and supply it to the breaker.