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Support a higher-output drivetrain with a multi-plate clutch matched to the stated engine, transmission, spline, flywheel, and release system. Match OS Giken part NS221-CH51 by complete vehicle application and every transmission, differential, release, spline, plate, fluid, and companion-part requirement before ordering.
Key Features
- Application-matched OS Giken clutch assembly
- Capacity and engagement characteristics remain clutch-series specific
- Exact engine, transmission, release system, spline, and flywheel interface must match
- Professional installation and break-in procedure required
Fitment
| Years | Make | Model | Application Notes |
|---|---|---|---|
| 1999-2002 | Nissan | Skyline GT-R | 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 | NS221-CH51 |
| Product Type | Clutch Kits - Multi |
| Fitment Type | Vehicle Specific |
| Spline or Tooth Count | 26 Spline |
| Condition | New |
What's Included
One new OS Giken product in the exact configuration and package quantity identified by part NS221-CH51. 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 NS221-CH51 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 NS221-CH51?
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 NS221-CH51?
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 NS221-CH51 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.
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