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Convert the stated clutch release movement for use with the matching OS Giken push-type clutch system. Match OS Giken part MZ121-ALT by complete vehicle application and every transmission, differential, release, spline, plate, fluid, and companion-part requirement before ordering.
Key Features
- Converts the stated pull-type release movement for a compatible OS Giken push-type clutch
- Designed specifically around the intended OS Giken clutch system
- Exact transmission and release geometry must be confirmed
- Companion clutch and release parts are not interchangeable by appearance
Fitment
| Years | Make | Model | Application Notes |
|---|---|---|---|
| 1993-1995 | Mazda | RX-7 | Confirm chassis, engine, transmission, differential housing, axle or spline, final drive, release system, and every OS Giken application note |
Searchable fitment is limited to year, make, and model. Chassis, engine, transmission, differential, spline, trim, and release-system requirements remain application notes.
Specifications
| Brand | OS Giken |
|---|---|
| Manufacturer Part Number | MZ121-ALT |
| Product Type | Clutch Service Kits |
| Fitment Type | Vehicle Specific |
| Condition | New |
What's Included
One new OS Giken product in the exact configuration and package quantity identified by part MZ121-ALT. Bearings, seals, fluids, flywheel, clutch, release components, alteration kits, tools, fasteners, and other companion parts are included only when expressly stated.
About OS Giken
OS Giken designs and manufactures performance clutches, limited-slip differentials, drivetrain components, gear oil, and precision service tools in Japan. Exact transmission, differential, spline, and release-system matching is essential.
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Frequently Asked Questions
Will OS Giken MZ121-ALT fit my vehicle?
Match the year, make, and model in the Fitment table, then confirm chassis, engine, transmission, differential housing, axle or spline, final drive, release system, and every OS Giken application note.
Which companion parts are required with OS Giken MZ121-ALT?
Confirm the flywheel, clutch discs, cover, release bearing or CSC, sleeve, alteration kit, pilot bearing, fasteners, alignment tool, and transmission interface. Only expressly listed components are included.
What checks are required after installing OS Giken MZ121-ALT?
Verify release travel, pedal free play, hydraulic operation, fastener torque, fluid level, leaks, abnormal noise, and the current OS Giken break-in procedure before full-load use.
Installation Instructions
Follow the current OS Giken instructions for part MZ121-ALT and the vehicle service manual. Support the vehicle safely, verify every mating interface before assembly, use new seals and specified hardware where required, apply the correct lubricant and torque values, measure all required clearances and adjustments, then complete the prescribed break-in and post-installation inspection.
OS Giken
Shop OS Giken limited-slip differentials, multi-plate clutches, release components, precision alignment tools, differential covers, and OS-250R V2 gear oil by exact manufacturer part number. Confirm every vehicle, chassis, engine, transmission, differential housing, spline, release-system, fluid, and companion-part requirement before ordering.OS Giken Product Families Super Lock clutch-type limited-slip differentials Single, twin, and triple-plate performance clutch systems Release sleeves, CSC components, movement alteration kits, and clutch alignment tools Expanded-capacity differential covers and OS-250R V2 gear oil Choosing the Correct OS Giken ProductMatch the exact manufacturer part number first. Year, make, and model alone do not confirm a drivetrain component because chassis, engine, transmission, differential housing, axle or input spline, final drive, clutch series, and release system can vary within the same model.About OS GikenOS Giken designs and manufactures performanc...
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