OS Giken

Need to put the power down, even when you push hard out of corners? OS Giken makes limited-slip differentials and clutches for motorsport teams and enthusiasts who want better traction and a drivetrain that lasts. Here you’ll find LSDs, multi-plate clutches and drivetrain parts for many popular cars.

Japanese drivetrain engineering from motorsport

OS Giken is a Japanese manufacturer that has developed drivetrain parts for motorsport for many years. The brand is especially known for its limited-slip differentials and compact multi-plate clutches, used in everything from drifting and time attack to track cars and fast street cars. OS Giken focuses on precision and durability, so the parts can handle repeated loads from hard launches, aggressive shifts and high revs without losing their characteristics.

OS Giken’s key products

For many, the OS Giken Super Lock LSD is the first purchase. The differential distributes power between the driven wheels, so the inside wheel doesn’t spin in corners and the car can accelerate earlier and with more control. The twin- and triple-plate clutches can transfer high torque while remaining compact and light, giving the engine quicker response. The range also includes clutch kits with flywheels and various drivetrain parts for a wide range of popular Japanese and European cars.

Buy OS Giken from us

We specialise in performance parts and know what it takes for a project to succeed. You get a wide selection, competitive prices and personal service if you have questions along the way. Find the OS Giken solution for your project and take the next step towards more performance.

Frequently asked questions

What does a limited-slip differential do?

A limited-slip differential sends more power to the wheel with grip instead of letting the unloaded wheel spin. That gives better traction out of corners and more predictable handling, especially on track and in drifting.

Is a multi-plate clutch suitable for street use?

It depends on the model. Multi-plate clutches can feel more direct and be noisier than factory clutches. Check the details on each product, or contact us if you are unsure which model suits your use.

How do I know if a part fits my car?

Contact us with your car’s make, model, year and preferably engine code, and we’ll help you find the right part.

What is the delivery time?

The delivery time is shown on each product page. It depends on whether the item is in stock in our own warehouse or with our supplier.