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Built for the Last of the RB26 Legends
The OS Giken R3C Triple Plate Clutch brings race proven torque capacity to the Nissan Skyline GT-R R34, giving the RB26DETT platform a clutch package that matches serious turbo power with a durable street and strip friction system. Part number OSGNS221-CH51 pairs a triple plate assembly with a floating center hub design that resists transmission shock, making it a trusted choice for tuners pushing well beyond stock output on the R34 chassis.
Key Features
- OS Giken R3C triple plate design rated up to 1,100 lb-ft of torque
- Floating dampened center hub reduces drivetrain shock under hard launches
- Billet aluminum clutch cover for consistent clamping force at high RPM
- Engineered specifically for the Nissan Skyline GT-R R34 RB26DETT drivetrain
- Proven in competition drift and drag applications, OSGNS221-CH51 handles sustained heat cycling
- Complete triple plate clutch assembly ships with a matched flywheel
Fitment Table
| Year Range | Make | Model |
|---|---|---|
| 1999-2002 | Nissan | Skyline GT-R (R34) |
Specifications
| Detail | Value |
|---|---|
| MPN | OSGNS221-CH51 |
| Brand | OS Giken |
| Clutch Type | Triple Plate, Floating Center Hub |
| Torque Capacity | Up to 1,100 lb-ft |
| Cover Material | Billet Aluminum |
| Flywheel | Included |
| UPC | Not assigned by manufacturer |
What's Included
- OS Giken R3C triple plate clutch assembly
- Matched OS Giken flywheel
- Clutch disc set
About OS Giken
OS Giken has engineered clutch and drivetrain components in Okayama, Japan since the 1970s, supplying technology to professional drift, drag, and circuit racing teams worldwide. Their R Series clutches represent the top of the lineup, built for platforms like the RB26DETT where reliability under extreme torque is non negotiable.
FAQ
What is the OSGNS221-CH51?The OSGNS221-CH51 is an OS Giken R3C triple plate clutch built for the Nissan Skyline GT-R R34 with the RB26DETT engine. It uses a floating center hub design and is rated to handle up to 1,100 lb-ft of torque, making it suited to heavily built turbo applications.
Does this clutch include a flywheel?Yes, the OSGNS221-CH51 ships as a complete triple plate clutch assembly with a matched flywheel included.
What is the torque rating of this clutch?This R3C triple plate unit is rated to handle up to 1,100 lb-ft of torque, placing it among OS Giken's highest capacity offerings for the R34 platform.
Is this clutch suitable for street driving?While capable on the street, the R3C is engineered primarily for high horsepower race applications and is most often found in competition drift and drag builds due to its aggressive engagement characteristics.
Does this clutch require additional parts for installation?Yes, the kit requires the OEM pilot bearing or bushing and Nissan flywheel bolts, which are not included and should be sourced separately if not already on hand.
What vehicles is the OSGNS221-CH51 designed for?This clutch is designed specifically for the 1999 to 2002 Nissan Skyline GT-R R34 equipped with the factory RB26DETT engine.
How does the R3C differ from OS Giken's TR series clutches?The R3C is a triple plate design built for significantly higher torque capacity than the twin plate TR series, making it appropriate for cars with major turbo upgrades rather than mild bolt-on power increases.
What driving style is this clutch best suited for?The OSGNS221-CH51 is best suited to track, drag, and drift use where maximum torque holding capacity is the priority over a light pedal feel.
Install Instructions
- Support the vehicle safely and remove the transmission per factory service procedures.
- Remove the factory or existing flywheel and clutch assembly from the RB26DETT crankshaft.
- Inspect and replace the pilot bearing or bushing before installation.
- Mount the OS Giken flywheel using the specified Nissan flywheel bolts and torque to factory specification.
- Install the R3C triple plate clutch assembly, aligning discs with the supplied or OEM alignment tool.
- Reinstall the transmission and reconnect the clutch linkage or hydraulic system.
- Bleed the clutch hydraulic system if equipped and verify smooth pedal engagement.
- Perform a break-in period following OS Giken guidelines before subjecting the clutch to full load.
Prop 65 Warning
WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.
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