Cheap Mazda RX-8 Gearbox

The RX-8 was sold in the UK in a single generation running from 2003 to 2012, with a facelift arriving in 2008 that brought changes to trim, styling and some mechanical details. Gearboxes from within the pre-facelift period (2003–2008) generally share the same engine — the 1.3-litre RENESIS rotary — and the same manual or automatic type, which is a good foundation for compatibility, but whether ancillary fittings or mounting points changed across the 2008 facelift boundary is something you should confirm with the breaker against your registration. Always match engine code and gearbox type (manual or automatic) first, and supply your reg when getting a quote.

The 231 and 192 refer to the power outputs of the two versions of the RENESIS rotary engine, and while both are 1.3-litre rotary units, the higher-output 231 PS engine has a different engine code from the 192 PS unit, which is why gearbox compatibility between the two should not be assumed. Mechanical parts follow the engine code rather than the badge or power figure, so confirming the exact engine codes on both donor and recipient vehicles — found on the V5 or via a VIN check — is essential before purchasing. Ask your breaker to match on engine code rather than trim level or power output.

Trim levels like Sport, Kuro, and PZ are cosmetic and equipment distinctions and do not affect gearbox fitment — the gearbox is determined by engine code and whether the car is manual or automatic, not by which trim badge it carries. What you may find is that parts stripped alongside a gearbox from a higher-spec car carry different ancillaries or interior trim, but that does not affect whether the gearbox unit itself fits. Match on engine code and gearbox type, and trim level can be safely ignored for this part.

Yes — the manual and automatic gearboxes are completely different units and are not interchangeable, so you must source a replacement that matches your car's gearbox type exactly. The RX-8 was offered with a six-speed manual and a four-speed automatic across its production run, and swapping between the two would involve significant additional work and cost well beyond the gearbox itself. Always confirm your gearbox type with the breaker when requesting a quote.

The most useful piece of information you can supply is the engine code, which is printed on your V5 logbook or can be retrieved via a VIN check, as this is the single most reliable way to match a gearbox to your car. You should also confirm whether your car is manual or automatic and state your model year, since the RX-8 ran from 2003 to 2012 with a facelift in 2008 and some details may have changed across that boundary. Your registration plate allows a good breaker to cross-reference all of this quickly, so include it in your quote request on Findapart.

The 2008 facelift marks a known production boundary for the RX-8, and while the RENESIS rotary engine carried through both periods, whether gearboxes cross that boundary without issue — particularly regarding ancillary fittings, mounts, or ECU pairing — is not something that can be stated as a flat yes or no. The safest approach is to provide your registration and engine code to the breaker and ask them to confirm compatibility against the specific donor vehicle they have in stock. Do not assume interchangeability across the facelift year without that confirmation.