Mazda RX8 differential parts for owners servicing, refreshing or maintaining the rear driveline with confidence. Covers differential oil, magnetic drain plugs, mounts and cooling covers for a properly considered service or driveline refresh.
RX8 Model
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KTS coilovers front and rear AutoEXE two piece rotors front and rear with AutoExe pads Project PMU braided lines in charcoal Raypower 20mm bolt on spacers Fully rebuilt calipers with new pistons One corner done three more to go 🤙🏻 Thanks RX8 Upgrades nothing but the best forget the rest 🏁
Got this on both my FD and RX8. So impressive, so aggressive, yet so little chatter. Allows full use of every last kw to put the power down!
GENUINE MAZDA OEM Intake Solenoid for Mazda RX8 (Series 1 & 2, 2003-2012)
Happy 8's day people! For you series 2 owners, here's the easiest way I found to change these little suckers. RX8 Upgrades providing the genuine goods as always. Remove the air box/ CAI, remove throttle body and remove the top part of the UIM only, this will get you easy access to the solenoids. Now you could remove them from this point, but removing the oil filler neck along with the vacuum chamber the solenoids mount to makes it FAR easier to change them. This whole job can be done in an afternoon for a mechanically minded person. On reassemble, don't forget to place the vacuum reference back onto the bottom of the manifold (has a green check valve) otherwise no valve will work. Reassemble and enjoy. PN is KL01-18-741 for those chasing the part
HKS Hi-Power Cat-Back Exhaust with Titanium Tip for Mazda RX8 (Series 1 & 2, 2003-2012)
my vote is the hks, love the tone it brings and i happen to have one..lol
Just another RX8 Upgrades appreciation post. Thanks for the autoexe clutch and oem throwout bearing and for being a top seller to deal with. Need rx8 parts? Hit up RX8 Upgrades
HKS Hi-Power Cat-Back Exhaust with Titanium Tip for Mazda RX8 (Series 1 & 2, 2003-2012)
HKS always delivers a quality product, this is no exception.
The rear differential is one of the harder-working components in the RX8 driveline. Because of this, the parts surrounding it deserve the same attention as the engine and gearbox during any serious service. This range brings together the maintenance and supporting hardware most commonly needed when refreshing or looking after the rear end.
Mazda RX8 differential parts, differential oil, magnetic drain plugs, mounts and cooling covers, are grouped in one place for owners who want to approach the job properly.
Fluid condition is the single most important variable in differential longevity. Fresh oil restores the lubricating film the gears and bearings depend on. Also, selecting the correct specification matters. RX8 differential oil requirements differ depending on whether the car has an open differential or an LSD. For example, using the wrong fluid in a limited-slip unit will cause chatter and accelerate wear. Therefore, owners with an LSD should confirm they are selecting an appropriate RX8 LSD oil rather than a standard gear oil.
In addition, draining and refilling is the right moment to fit a RX8 magnetic drain plug. It captures fine ferrous particles in the fluid and keeps them away from precision surfaces between service intervals.
A fluid service is a natural prompt to inspect the surrounding hardware. Meanwhile, rubber differential mounts harden and crack with age. Tired items introduce driveline vibration that is easily mistaken for other causes. As a result, addressing RX8 differential mounts during a driveline refresh removes a common source of NVH without significant additional labour.
Moreover, for builds running harder or in warmer conditions, a RX8 diff cooling cover is worth considering as part of a more thorough driveline upgrade plan.
Rear differential work rarely benefits from being done in isolation. Before starting, review mount condition and confirm which differential configuration the car has. Then, select fluid accordingly. Combining a fluid change with fresh mounts and a magnetic drain plug in one session avoids pulling the hardware twice.
Finally, each product listing includes fitment and specification details for the full range of Mazda RX8 differential parts. Read them carefully to confirm the part suits your differential configuration and the work you have planned.
Most RX8 owners service the differential oil every 40,000 to 60,000 kilometres as part of routine driveline maintenance, though more frequent changes are worthwhile on cars used hard or on track. Checking the fluid condition at each major service interval is the best guide to whether a change is due.
The RX8 was available with both open and Torsen-type limited-slip differentials depending on specification and market. If your car has an LSD, it requires a fluid formulated to suit that differential type - using the wrong oil can cause chatter or premature wear on the clutch packs or torsen internals. Check your differential specification before selecting oil.
A magnetic drain plug captures fine metal particles that circulate in the differential oil before they can cause abrasive wear on gears and bearings. Inspecting the plug at each fluid change also gives a practical indication of how much internal wear is occurring, making it a useful addition to any differential service.
Differential mounts deteriorate over time and with heat cycles, and worn mounts can introduce driveline vibration, imprecise throttle response and increased NVH at the rear of the car. They are worth inspecting whenever the differential is out or the underside is being worked on, particularly on higher-mileage or track-used RX8s.
A differential cooling cover is a component designed to help manage heat in the differential housing, which can be a concern on cars driven hard or used in circuit conditions where sustained high loads raise fluid temperatures. It is most relevant to owners building for track or spirited road use rather than standard street driving.
A basic fluid change on the RX8 differential is within reach for a competent home mechanic with the correct tools and a suitable drain plug socket. More involved work such as mount replacement or cooling upgrades benefits from workshop experience with rear driveline components, and confirming torque specs and fluid quantities before starting is essential.
Combining a fluid change with mount inspection or replacement is sensible when the differential is already accessible, as it avoids duplicating labour and ensures the whole assembly is in good condition at the same time. Reviewing all supporting hardware together is a practical approach to a thorough driveline refresh.
