OS Giken clutches are made to very tight tolerances and to ensure proper alignment when installing the clutch, OS Giken offer a forged billet center alignment tool that eliminates any slack found in other plastic alignment tools.
Features
- Great for high horsepower, multi-plate clutches to ensure proper clutch fitment during installation
- Forged billet construction available for many vehicles
- Saves time during installation with peace of mind
We ship to the United States and 150 other countries.
Japan Post EMS & ePacket, FedEx, DHL and more.
| Vehicle | Clutch | Price | Order |
|---|---|---|---|
| OSG-CAT-VQ35DE | |||
| Fairlady Z - 350Z - Z33 | | ||
| OSG-CAT-VQ35HR | |||
| Fairlady Z - 350Z - Z33 | | ||
| OSG-CAT-VQ37VHR | |||
| Fairlady Z - 370Z - Z34 VQ37VHR | | ||
| OSG-CAT-HOLLINGER | |||
| Skyline GT-R - BNR32 | Hollinger | | |
| OSG-CAT-HOLLINGER | |||
| Skyline GT-R - BCNR33 | Hollinger | | |
| OSG-CAT-HOLLINGER | |||
| Skyline GT-R - BNR34 | Hollinger | | |
| Vehicle | Price | Order |
|---|---|---|
| OSG-CAT-1JZ/2JZ | ||
| 1JZ-G(T)E 5MT | | |
| OSG-CAT-1JZ/2JZ | ||
| 2JZ-G(T)E 5MT | | |
| OSG-CAT-2JZ | ||
| Supra A80 MKIV - JZA80 6MT | | |
| Vehicle | Price | Order |
|---|---|---|
| OSG-CAT-DC5 | ||
| Integra - DC5 | | |
| OSG-CAT-DC5 | ||
| Integra Type R - DC5 | | |
OS Giken was founded in 1973 in Okayama by Masaharu Okazaki as the Okazaki Speed Technology Research Institute, a tuning shop for cars and motorcycles. It became OS Giken Co., Ltd. in 1988. Okazaki built his own high-revving twin-cam engines, the TC16 and TC24-B1, and began making stronger drivetrain parts because stock ones could not take the power.
A Violet with a TC16-MA II won the 1980 All Japan All-Star Dirt Trial, and a 280Z with a TC24-B1 took third in its class at the 1982 SCCA Pro Rally in Nevada. OS Giken still makes clutches, limited-slip differentials and gearboxes, including the OS-FR7 7-speed sequential, from its base in Okayama.










