Second Hand Mazda 6 Cylinder Head

This crosses a significant generation boundary: the first-generation Mazda 6 (GG/GY) ran from 2002 to 2008, the second generation (GH) from 2008 to 2013, and the third generation (GJ) launched in 2013, so a 2010 unit and a 2014 unit are from different generations entirely. The engine codes between these generations differ, meaning the cylinder heads are not interchangeable. Always confirm the engine code from your V5 or a VIN check and give it to the breaker before ordering.

Both years fall within the second-generation Mazda 6 (GH, 2008–2013), so there is a realistic chance of compatibility if the engine codes match. However, there were running production changes within this generation, so confirm your exact engine code with the breaker against your registration before purchasing. Engine code is the single most reliable piece of information you can supply.

Trim level does not affect cylinder head fitment on the Mazda 6; the head follows the engine, not the badge or specification level. A Sport Nav and an SE-L built in the same period and fitted with the same engine code will use the same cylinder head. Do be aware that ancillary components or sensors may differ between specifications, so confirm the full engine code with the breaker to make sure you are getting the right unit.

Yes, fuel type is critical – petrol and diesel cylinder heads are completely different components and are not interchangeable under any circumstances. Within each fuel type, the specific engine code narrows it down further; for example, different diesel displacements or power outputs in the Mazda 6 range use different heads. Always state both fuel type and engine code when requesting a quote from a breaker.

The gearbox itself does not change the cylinder head, but manual and automatic variants were sometimes paired with different engine tune states that could affect ancillary components around the head. The engine code printed on your V5 or obtained via a VIN check is the definitive reference – give that to the breaker rather than just stating auto or manual. This way the breaker can confirm the correct unit for your exact vehicle.

The third-generation Mazda 6 (GJ) received a facelift in 2015, and there may have been ancillary or mounting changes around that point that affect whether parts transfer cleanly. The core engine code is still your most reliable guide, and if your engine code matches between a pre- and post-facelift car the head itself may be compatible. However, confirm this directly with the breaker against your registration, as only they can verify whether any mid-production changes affect your specific vehicle.