What is in the R3C Overhaul Kit A for OS Giken R3C kit?

The R3C Overhaul Kit A for OS Giken R3C kit contains three clutch discs, two center plates, the pressure plate and a set of cover bolts. It does not include the cover; Overhaul Kit B adds one. Our team can help with any questions.

Which clutches does it fit?

OS Giken USA lists this kit with its R3C clutch for the S13 and S14 Silvia, R34 Skyline GT-R with the 26-spline hub, JZA70 and JZA80 Supra, 350Z and 370Z, 3000GT VR-4, Evolution IV to X and C6 Corvette. Our team will confirm against your clutch.

Should I choose Overhaul Kit A or Overhaul Kit B?

Choose Kit A when the existing R series cover is in good condition, with no heat damage and a healthy diaphragm, because it costs less and reuses a part that still works. Choose Kit B when the cover shows wear or heat marks, or for a full refresh.

Does it fit the R3B, R4C or R3CS?

No. Those clutches use different discs or plate counts and have their own overhaul kits. This kit is for the R3C triple plate clutch only, so match it to the clutch part number before ordering. Our team can help with any questions.

How do I know my clutch needs rebuilding?

The usual signs are slip under full load, an engagement point that has moved, or new judder on take-off. Wear depends heavily on launches, track use and power level, so there is no fixed interval between rebuilds. Our team can help with any questions.

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Description

OS Giken R3C Overhaul Kit A for OS Giken R3C Triple Plate Clutches

OS Giken’s R3C Overhaul Kit A for OS Giken R3C clutches is the shared rebuild kit OS Giken USA lists for its R3C triple plate clutch across several cars, from the S13 and S14 Silvia and R34 Skyline GT-R to the JZA80 Supra, 350Z, Evolution and C6 Corvette. Kit A replaces the three discs, center plates, pressure plate and cover bolts and keeps the existing R series cover in service, which keeps the cost down when that cover is still flat and clamping evenly. OS Giken USA describes the R series as its highest capacity clutch, built to withstand transmission shock and abuse from high-powered race cars.

One Kit for the R3C Range

OS Giken uses common R3C internals across these applications, so the R3C Overhaul Kit A for OS Giken R3C clutches is listed against each of them. Our listings include the R3C for the R34 Skyline GT-R, 26 spline, R3C for the JZA80 Supra, R3C for the 350Z and 370Z, R3C for the 3000GT VR-4, R3C for the Evolution X, R3C for the Evolution IV to IX and R3C for the C6 Corvette. Turn 14 titles this part simply as a clutch overhaul kit.

Features

Rebuild kit for OS Giken R3C triple plate clutches
Reuses the existing R series cover to keep the cost down
Listed by OS Giken USA for R3C clutches across several cars
Lets an R3C be serviced rather than replaced

What’s Included

Clutch discs (x3)
Center plates (x2)
Pressure plate
Cover bolt set

Applications

OS Giken R3C triple plate clutches: As listed by OS Giken USA | S13 / S14 Silvia, R34 Skyline GT-R (26 spline), JZA70 and JZA80 Supra, 350Z / 370Z, 3000GT VR-4, Lancer Evolution IV to X, C6 Corvette

Notes

This kit rebuilds OS Giken R3C triple plate clutches only
Kit contents are as OS Giken dealers list them for Overhaul Kit A; our team will confirm against your clutch part number before the order is placed
The clutch cover is not included; Overhaul Kit B (OS021-CH50B) includes a new cover
Installation labor is not included

Frequently Asked Questions

What is in the R3C Overhaul Kit A for OS Giken R3C kit? The R3C Overhaul Kit A for OS Giken R3C kit contains three clutch discs, two center plates, the pressure plate and a set of cover bolts. It does not include the cover; Overhaul Kit B adds one. Our team can help with any questions.
Which clutches does it fit? OS Giken USA lists this kit with its R3C clutch for the S13 and S14 Silvia, R34 Skyline GT-R with the 26-spline hub, JZA70 and JZA80 Supra, 350Z and 370Z, 3000GT VR-4, Evolution IV to X and C6 Corvette. Our team will confirm against your clutch.
Should I choose Overhaul Kit A or Overhaul Kit B? Choose Kit A when the existing R series cover is in good condition, with no heat damage and a healthy diaphragm, because it costs less and reuses a part that still works. Choose Kit B when the cover shows wear or heat marks, or for a full refresh.
Does it fit the R3B, R4C or R3CS? No. Those clutches use different discs or plate counts and have their own overhaul kits. This kit is for the R3C triple plate clutch only, so match it to the clutch part number before ordering. Our team can help with any questions.
How do I know my clutch needs rebuilding? The usual signs are slip under full load, an engagement point that has moved, or new judder on take-off. Wear depends heavily on launches, track use and power level, so there is no fixed interval between rebuilds. Our team can help with any questions.

About OS Giken

OS Giken was founded in Okayama, Japan in 1973 by Masaharu Okazaki. It built the TC16 and TC24-B1 DOHC cylinder heads for Nissan L-series engines, began making multi-plate racing clutches in 1982 and started supplying OEM limited-slip differentials in 1983. Development of the Super Lock LSD began in 1997, and of the OS-88 sequential gearbox for the Skyline GT-R in 1998.

Additional Information

The Bulletproof Automotive website contains many thousands of products purchased in multiple different currencies. All of the prices are entered manually and accurately at the time of entry. Due to the consistently fluctuating international exchange rates, at times prices may not be able to be honored at their original intended rate. We apologize for any inconvenience this may cause, unfortunately our website is unable to compensate dynamically for what can at times be volatile changes in the cost of items due to currency values fluctuating, changes in prices from suppliers, changes in shipping and import duties, and other factors. Rest assured that any order you place on line will be at zero risk to you in this area. If in the event your order cannot be fulfilled at the original intended website price we will offer you a 100% refund, no questions asked. We will continue to do our best to maintain updated prices and we will always continue to offer our price match guarantees as well to ensure our prices are always the best for you. In short, prices may change without notice. It is always advised to give us a call prior to placing your order online to confirm availability and to confirm current pricing.

Shipping Policy

Items that are in stock in the US, either at Bulletproof’s warehouse or at a supplier’s warehouse, are generally delivered within 7-10 days. Special order items from overseas take considerably longer. As a courtesy Bulletproof offers delivery estimates to our customers which take into consideration manufacturer availability and shipping schedule. These estimates represent our best guess based on previous orders from the manufacturer and do not in any way imply a guaranteed delivery window. Many manufacturers work in a “just in time” inventory system and often take 2-20+ weeks to produce an item once an order is submitted. All deliverable items are then sent to our Japanese warehouse. Bulletproof ships a minimum of one full ocean freight container every month from Japan, oftentimes more than one a month. Ocean freight takes an average of 4 weeks. Typically it breaks down to one week in Japan for paperwork and customs, two weeks by boat and one week in US customs/clearance. Due to the wide number of variables between manufacturer and shipping schedules, delivery estimates are simply just that – estimates. We attempt to estimate conservatively and we usually deliver faster than our estimates suggest. It is not Bulletproof’s policy to guarantee delivery time of any special order item, this is impossible for us to do. By ordering you acknowledge that there is no required delivery ETA and an order may not be canceled or altered due to manufacturing or shipping delays, all ETA’s are provided as a best guess only. Please review the full Terms & Conditions here.

BP Pricing Difference

We do pricing a little differently on our JDM brands and we believe in making things simple and clear. No hidden fees or surcharges. Every price you see includes the shipping cost to our office in Los Angeles, California and all the associated taxes/duties/fees for bringing the products into the US. The only shipping you ever pay is from our facility in the US to your location. Be wary of resellers that don’t include the cost of international shipping in their pricing on JDM parts. While we believe we’ll always have the lowest all-in price on JDM products, we offer a price match guarantee for all authentic parts purchased from authorized dealers as well. For many international customers, it’s much more affordable to ship from the USA than from Japan directly, as the air freight and ocean freight costs are typically much less. However, for customers looking to ship directly from Japan outside of North America, or domestically in Japan, we can provide pricing specifically for that scenario. Please do not hesitate to contact us with any pricing questions or concerns. Please email us at sales@bulletproofautomotive.com with any inquiries.

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OS Giken R3C Overhaul Kit A for OS Giken R3C Triple Plate Clutches [OS021-CH50A]

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OS Giken R3C Overhaul Kit A for OS Giken R3C Triple Plate Clutches

One Kit for the R3C Range

Features

What’s Included

Applications

Notes

Frequently Asked Questions

About OS Giken

Reviews