Miyaco Clutch Release / Slave Cylinder – Mazda MX-5 Mk1 / Mk2 / Mk2.5 • CC-M229

Miyaco CC-M229 clutch release / slave cylinder for Mazda MX-5 Mk1 / NA, Mk2 / NB and Mk2.5 / NB-FL manual-transmission models from 1989–2005.

The clutch release cylinder, commonly known as the clutch slave cylinder, mounts externally to the gearbox bellhousing and converts hydraulic pressure from the clutch master cylinder into movement of the clutch fork and release mechanism.

Miyaco CC-M229 is a complete replacement clutch release cylinder with a published 3/4-inch bore. One cylinder is required per vehicle.

It corresponds to the Mazda NA01-41-920 clutch release cylinder family, including later Mazda references NA01-41-920A, NA01-41-920B and NA01-41-920C.

Application / fitment advice:

• Mazda MX-5 Mk1 / NA, Mk2 / NB and Mk2.5 / NB-FL.
• Suitable for confirmed NA6C / NA6CE, NA8C, NB6C and NB8C applications.
• Manual-transmission vehicles only.
• Suitable for applicable 5-speed and 6-speed manual transmissions.
• Confirmed by Miyaco for NB8C turbo applications as well as naturally aspirated NB models.
• Not applicable to automatic-transmission vehicles.

Part location:

The clutch slave cylinder is mounted externally to the gearbox bellhousing. Hydraulic pressure from the clutch master cylinder moves the slave-cylinder piston and pushrod, which operates the clutch fork and allows the clutch to disengage.

Installation / service notes:

• Protect surrounding painted surfaces from hydraulic fluid during removal and installation.
• Clean around the hydraulic connection before disconnecting the original cylinder to minimise contamination entering the system.
• Inspect the flexible clutch hose, hydraulic pipework and clutch master cylinder while the system is open.
• Check the clutch-fork contact point and slave-cylinder pushrod area for excessive wear or damage.
• After installation, refill with the vehicle-specified hydraulic fluid and thoroughly bleed the clutch hydraulic circuit.
• Check for leaks and confirm correct clutch disengagement and pedal return before road use.

Other items to consider:

• Clutch master cylinder
• Flexible clutch hydraulic hose
• Fresh hydraulic fluid
• Miyaco CK-414 clutch release cylinder repair kit where rebuilding an existing serviceable cylinder

Why Miyaco?

Miyaco specialises in automotive brake and hydraulic service components and supplies replacement master cylinders, clutch release cylinders and associated hydraulic repair components for Japanese vehicle applications.