Cheap Mazda RX-8 Fuel Injection Pump

The RX-8 was produced in two generations: Series I (2003–2008) and Series II (2009–2012), so a 2004 and a 2007 car both sit within Series I. The key thing to confirm is that both cars share the same engine code, as this matters far more than the model year for fuel system compatibility. That said, whether ancillary fittings or mounting points changed at any point within the Series I run is something you should confirm with the breaker against your registration, as these details can shift mid-production without a formal facelift. Never assume fitment is guaranteed without the breaker checking your specific registration.

The Series II RX-8 launched in 2009 and ran through to 2012, representing a distinct generation from the Series I (2003–2008), and parts crossing that boundary cannot be assumed to interchange. The engine family is the same rotary unit across both series, but whether the fuel injection pump is a straight swap across the 2008–2009 boundary is something you must confirm with the breaker against your registration. Provide the breaker with your exact engine code from your V5 or a VIN check, as that is the single most reliable detail for them to match the part correctly.

Trim level does not affect which fuel injection pump you need — the pump follows the engine code, not the badge or specification level. The R3 and other trims such as the PZ and GT shared the same rotary engine family, so cosmetic or equipment differences between them are irrelevant to fuel system fitment. You may find cosmetic differences on parts you buy alongside the pump, but the pump itself is determined by engine code, fuel type, and model year within the generation. Always supply your engine code to the breaker to confirm the match.

The most important detail is your engine code, which you can find on your V5 logbook or by running a VIN check — this matters more than the year or trim for mechanical parts like the fuel injection pump. You should also confirm the model year and whether your car is a Series I (2003–2008) or Series II (2009–2012), as breakers will use this to narrow down the right unit. The breaker will also want to check ECU pairing and any immobiliser coding implications against your registration, so be ready to provide your full registration number as well.

Gearbox type can be relevant to fuel system components in some cases, as automatic and manual cars can have different fuelling demands or ancillary setups. It is worth telling the breaker specifically whether your car is a manual or automatic when requesting a quote, alongside your engine code. Whether the pump itself differs between transmission types on the RX-8 is something the breaker should confirm against your registration rather than something you should assume either way.

Without a confirmed year and engine code, you cannot safely assume fitment, and a cheap part that turns out to be wrong is no saving at all. Ask the seller for the donor vehicle's registration or engine code so the breaker or a VIN check service can verify which generation and engine variant the pump came from. If the pump is from a Series I car (2003–2008) and yours is Series II (2009–2012), or vice versa, you should treat that as a likely incompatibility until a knowledgeable breaker confirms otherwise against your registration. Always route ECU pairing and immobiliser coding questions to the breaker before purchasing any used fuel system component.