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GENUINE MAZDA OEM Clutch Slave / Release Cylinder for Mazda RX8 (Series 1, 2003-2008)

Restore confident clutch engagement on a Series 1 with a genuine Mazda RX8 clutch slave cylinder in factory-correct, known-good condition.

RX8 clutch slave cylinder showing black cast housing, rubber boot and pushrod

$90

The RX8 clutch slave cylinder is the hydraulic release component that disengages the clutch every time you press the pedal. When the original unit develops a leak or loses pressure, gear changes become unpredictable and clutch feel deteriorates. This genuine Mazda part is the direct, factory-specified replacement for Series 1 cars built from 2003 to 2008.

RX8 Clutch Slave Cylinder Key Features

  • Genuine Mazda OEM construction means every seal, bore dimension and mounting point matches the original Series 1 specification exactly.
  • It replaces a worn or leaking release cylinder with a known-condition component, removing the risk that a used part carries.
  • Designed as the correct hydraulic release cylinder for 2003-2008 models, so no adaptation or modification is needed at installation.
  • A failed original can cause clutch engagement inconsistency, spongy pedal feel, difficulty selecting gears, or slipping engagement under load.
  • Finally, sourcing a genuine part now is the sensible approach as OEM hydraulic components for early-series RX8s become progressively harder to find.

For RX8 enthusiasts, a fresh clutch slave cylinder restores the crisp, predictable clutch action the car had when new. The difference is felt immediately: a firm, consistent pedal and clean gear selection, rather than the vagueness a deteriorating hydraulic unit introduces.

While the RX8 clutch slave cylinder is out, inspect the clutch master cylinder and hydraulic line for matching wear. If the clutch itself is due for attention, the AUTOEXE Sports Clutch Kit makes an ideal companion service item, completing the hydraulic release system renewal in a single session. Pair that with fresh CUSCO Super Sports Gearbox Oil with Neo 2L to complete the drivetrain refresh in one go. Genuine part details can be verified through the Mazda Australia official site.

Additional information

RX8 Model

Colour

SKU OM-CSC-S1 Categories , Types , , Brand:

Related RX8 Upgrades

This clutch slave cylinder is one of the best Mazda RX-8 upgrades you can make to your Series 1 (2003-2008). Clutch slave cylinder replacements are among the top OEM mods you can buy from GENUINE MAZDA OEM for owners who want better performance and reliability from their RX8. If you are looking for rx8 clutch slave cylinder for sale in Brisbane (QLD), Sydney (NSW), Melbourne (VIC), Canberra (ACT), Adelaide (SA), Darwin (NT) or Perth (WA), you’ll find high-quality Japanese Gearbox upgrades at RX8 Upgrades.

Frequently Asked Questions

Which RX8 does this clutch slave cylinder fit?

This genuine Mazda clutch slave cylinder is designed for Series 1 RX8 cars built from 2003 to 2008. It is the correct OEM release cylinder for that hydraulic arrangement. If you have a Series 2 RX8, check whether a different part number applies to your car before ordering.

What symptoms suggest the clutch slave cylinder needs replacing?

Common signs of a failing RX8 clutch slave cylinder include a spongy or inconsistent clutch pedal, difficulty selecting gears cleanly, or visible hydraulic fluid leakage around the release cylinder. Weak or intermittent clutch engagement during gear changes is another indicator worth investigating.

Is a genuine Mazda OEM part better than an aftermarket slave cylinder?

A genuine Mazda clutch slave cylinder is built to the original factory specification, so it fits and calibrates to the Series 1 hydraulic system exactly as designed. It also arrives in known-new condition, which removes the uncertainty that comes with a secondhand or unbranded replacement of unknown service history.

Should I replace the clutch master cylinder at the same time?

It is good practice to inspect the clutch master cylinder and hydraulic lines while the system is open. Related wear in those components can undermine the performance of a new slave cylinder, so addressing them together during the same service saves labour and helps restore consistent clutch operation throughout the hydraulic circuit.

Do I need to bleed the clutch hydraulic system after fitting a new slave cylinder?

Yes. Any time the clutch hydraulic circuit is opened, the system should be bled to remove air before the car is driven. Air in the line will cause a spongy pedal and unreliable clutch release, so a proper bleed is an essential part of completing this job correctly.

Is this clutch slave cylinder suitable for a track or performance build?

This is a genuine OEM replacement designed to restore factory-correct clutch hydraulic operation on a Series 1 RX8. If you are rebuilding the clutch for higher-performance use, it makes sense to inspect and service the full hydraulic system at the same time, and consider whether an upgraded clutch kit suits your intended use.