Used Mazda RX-8 Oil Pump

Yes, every Mazda RX-8 has an oil pump — but it works differently to a conventional piston engine's pump because the RX-8 uses a rotary (Wankel) engine, the 13B-MSP Renesis, which has no camshaft or crankshaft in the usual sense and relies on its oil pump to meter oil directly for apex seal lubrication as well as general lubrication. All UK-market RX-8s share the same basic rotary engine family, so an oil pump is a genuine fitment on every variant. Make sure the seller knows you have a rotary engine when sourcing the part, as listings from piston-engine cars will not cross over.

The RX-8 ran in one generation throughout its UK production life, broadly split between the pre-facelift cars (2003–2008) and the facelifted R3-era cars (2009–2012), with the core 13B-MSP Renesis engine carried across both phases. The engine code is the single most important thing to match — if both cars share the same engine code, internal componentry including the oil pump is likely to be compatible, but there were detail revisions to ancillary and mounting arrangements during production that you cannot confirm from the badge alone. Confirm exact interchangeability with the breaker against your registration number before purchasing.

Trim level makes no difference to the oil pump fitment on the RX-8 — grades such as the standard, PZ, R3, and GT all used the same 13B-MSP Renesis rotary engine regardless of the badge on the boot lid. The oil pump is an internal engine component driven by the eccentric shaft, so it follows the engine specification, not the trim or equipment level. Match by engine code and year, not by trim name.

UK RX-8s were sold in two power outputs: the 189 hp (140 kW) version paired with the automatic gearbox, and the 231 hp (172 kW) version paired with the manual gearbox — both using the 13B-MSP Renesis engine, but with different port configurations to achieve the different outputs. This difference in engine configuration means the oil pump specification could vary between the two states of tune, so you should supply your engine code (found on your V5C or via a VIN check) and gearbox type to the breaker to ensure the correct pump is matched. Never assume the two outputs share the same internal parts without the breaker confirming it against your registration.

The RX-8 uses the 13B-MSP Renesis engine, which is a distinct rotary design from the 13B-REW twin-turbo unit found in the FD RX-7, and the two engines have different internal architectures including different oil pump arrangements. Cross-model fitment from other Mazda rotary vehicles is not something that can be assumed and should be treated as unlikely without specialist confirmation. A reputable breaker or rotary specialist should be able to advise whether any cross-reference exists, but always confirm against your specific engine code before buying.

Give the breaker your full registration number so they can run a proper check, and also quote your engine code directly from your V5C logbook or a VIN decode — on the RX-8 this will confirm whether you have the 189 hp automatic or 231 hp manual variant of the 13B-MSP Renesis. Also state your model year and whether your car is a pre-facelift (2003–2008) or facelift (2009–2012) example, as this helps the breaker identify the correct donor vehicle. The more precise the information you provide, the less risk of receiving a part that looks correct but has subtle differences in mounting or specification.