Your cart

GENUINE MAZDA OEM Renesis Short Motor for Mazda RX8 (Series 2, 2009-2012)

A factory-new genuine Mazda engine assembly for Series 2 RX8 owners. Zero kilometres, built to OEM spec, with rotors, seals, flywheel, water pump and oil pan included.

RX8 Renesis short motor on a pallet with front pulley and protective covers.

$13,000

The RX8 Renesis short motor is a brand-new genuine Mazda engine assembly sourced from Japan. It is built to original factory specification. This is the correct starting point for any Series 2 RX8 engine replacement. Whether the original has worn apex seals, suffered flooding damage or simply reached the end of its service life, every component arrives new. Zero running history. Zero accumulated wear.

This is not a remanufactured unit or a second-hand pull-out of unknown history. Starting a Renesis rebuild from this base removes every uncertainty that comes with a used motor. Undisclosed repairs, forgotten service intervals and wear you cannot see until the engine is apart, none of that applies here.

RX8 Renesis Short Motor Key Features

  • Factory-new internals, rotors, eccentric shaft, apex seals and side plates, are assembled to Mazda’s original specification. The engine core carries zero accumulated wear from day one.
  • A new flywheel is included, completing the drivetrain interface as part of the base package. This reduces the critical components you need to source separately.
  • The assembly ships with a new water pump. One of the Renesis’s most important cooling components is also fresh at installation.
  • The oil pan includes the oil level sensor already integrated. That sub-assembly is ready to fit without additional sourcing steps during the build.
  • Finally, a full set of new spark plugs is included. The installer has fresh consumables ready for first startup on the fresh rotary engine.

For rotary enthusiasts completing a genuine Mazda RX8 engine replacement, the practical case is clear. A used motor carries risk at every seal face, every rotor surface and every bearing. This assembly carries none of that.

Genuine crate motor availability in Australia is not something to take for granted. When the bay is already stripped, it is the right time to address everything around the motor as well. Pair this RX8 Renesis short motor with the GENUINE MAZDA OEM Radiator Hose Replacement Set to eliminate a common cooling-system weak point while access is easy. The GENUINE MAZDA OEM Fuel Pump is the logical time to renew with everything already apart.

Once the engine is running, the GREDDY TRUST Oil Filter is a quality Series 2 filtration choice. The AUTOEXE x KOYORAD High-Capacity 48mm Aluminium Radiator is the preferred cooling upgrade path for the Series 2 Renesis and is worth fitting at the same time. For genuine parts documentation and Mazda’s Australian programme, visit Mazda Australia.

Additional information

RX8 Model

SKU OM-MOT-S2 Category Types , , Brand:

Related RX8 Upgrades

This renesis short motor is one of the best Mazda RX-8 upgrades you can make to your Series 2 (2009-2012). Engine short block upgrades are among the top OEM mods you can buy from MAZDA for owners who want better performance and reliability from their RX8. If you are looking for rx8 renesis short motor for sale in Brisbane (QLD), Sydney (NSW), Melbourne (VIC), Canberra (ACT), Adelaide (SA), Darwin (NT) or Perth (WA), you’ll find high-quality Japanese Engine upgrades at RX8 Upgrades.

Frequently Asked Questions

Is this a brand-new engine or a remanufactured unit?

This is a brand-new, zero-kilometre genuine Mazda engine assembly, not a remanufactured or reconditioned unit. Every component, including the rotors, eccentric shaft, apex seals and side plates, is new and assembled to original Mazda factory specification with no running history.

Which RX8 models does this short motor fit?

This short motor is supplied for Series 2 RX8 models, covering the 2009 to 2012 build years. It is not the correct assembly for Series 1 vehicles.

What components are included with the short motor?

The assembly includes new rotors, eccentric shaft, apex seals, side plates, flywheel, water pump, oil pan with oil level sensor, and spark plugs. This reduces the number of critical items you need to source separately before installation.

Why is the water pump included, and does it matter?

The water pump is one of the most important components in the Renesis cooling system and is a common replacement item during any engine refresh. Having a new unit supplied with the motor means it goes in new alongside the engine rather than being overlooked or carried over from the old assembly.

Does the oil pan come with the oil level sensor already fitted?

Yes, the oil pan assembly is supplied with the oil level sensor included, so that sub-assembly arrives ready to fit without needing to source or transfer the sensor separately during your build.

What are the practical advantages of a genuine Mazda crate motor over a used RX8 engine?

A used RX8 engine carries unknown wear across every seal, rotor face and bearing surface, and you have no visibility over its service history or past repairs. A factory-new genuine assembly starts at zero on all of those variables, removing the risk that typically comes with a secondhand pull-out of uncertain condition.

Where is this engine assembled?

This is a genuine Mazda engine assembly built in Japan to original factory specification, the same manufacturing origin as the engine it replaces in a Series 2 RX8.

What else should I replace while the engine bay is stripped for this installation?

With the engine bay already apart, it makes sense to renew the radiator hoses and fuel pump at the same time, as access is straightforward and both are wear items worth replacing on a fresh build. A quality oil filter is also worth having ready for the first service once the engine is running.