OS Giken R4C 26-Spline Quad-Plate Clutch Kit for 1989-1994 R32 GT-R & 1995-1998 R33 GT-R - NS201-DH51

R4C quad-plate racing configuration

26-spline clutch-hub design

Up to 1,400 lb-ft torque capacity

Floating dampened center hub

Designed to withstand high heat and drivetrain shock

Includes a matched flywheel

Manufacturer Part Number: NS201-DH51

Series: R Series

Configuration: R4C quad plate

Clutch Disc Quantity: 4

Input Spline Configuration: 26 spline

Center Hub: Floating dampened

Torque Capacity: Up to 1,400 lb-ft

Quantity: 1 kit

Included Components: Quad-plate clutch assembly & flywheel

Pull-Type Requirement: OS Giken NS201-ALT18

Push-Type Requirement: OS Giken NS001-018K

Required Component: OEM pilot bearing or bushing

Recommended Alignment Tool: OS Giken NS201-FB6

OS Giken is a Japanese performance-parts manufacturer specializing in high-performance drivetrain and engine components. Officially founded in 1973, the company is headquartered in Okayama, Japan, where its products are manufactured and assembled under strict quality-control standards. OS Giken is best known for its multi-plate clutch systems, Super Lock limited-slip differentials, close-ratio gearsets and competition transmissions. Its engineering philosophy focuses on improving power transfer, durability and drivability through original mechanical designs rather than simply modifying factory-style components.

For Nissan Skyline GT-R and Nissan GT-R applications, OS Giken offers drivetrain upgrades for the R32, R33, R34 and R35 platforms. Available products include twin-, triple- and quad-plate clutch kits, front and rear Super Lock LSDs, clutch service components and the OS-88 six-speed sequential transmission for RB26-powered Skyline GT-Rs. The OS-88 is designed around the RB26DETT and is rated by OS Giken for applications producing up to 1,500 horsepower. For the R35 GT-R, OS Giken offers a Super Lock rear differential designed to provide smooth, progressive engagement and strong lock under power. Whether preparing a street-driven Skyline or a dedicated competition build, OS Giken provides precision drivetrain components developed for demanding power levels and performance use.

OS Giken does not publish one fixed warranty period covering every product. Warranty duration and coverage vary by product line, and all claims are subject to inspection and approval by OS Giken or the applicable manufacturer. Approved claims may result in repair or replacement of the affected product.

Warranty coverage does not apply when damage is caused by:

• Abuse, negligence or mishandling
  
• Incorrect application or unverified fitment
  
• Improper installation or product modification
  
• Damage unrelated to a manufacturing defect
  

To begin a claim, contact Elite GT-R Parts with:

• Your order number and OS Giken part number
  
• A detailed description of the issue
  
• Clear photographs or video of the product
  
• Vehicle, installation and operating information

Do not disassemble, modify or return the product before receiving instructions. Keep the product, packaging and all related installation documentation, as inspection may be required. Final warranty eligibility, coverage period and resolution are determined by OS Giken under the terms applicable to the specific product.