How much power will the HTR2C hold?

OS Giken USA rates the HTR2C Clutch for K20 K24 at about 650 lb-ft of torque. OS Giken USA says HTR clutches are typically good up to about 650 lb-ft, depending on the application. For more power than that, a higher capacity OS Giken series is the better match.

What does HTR2C mean?

It is the OS Giken model code. HTR is the cover series, 2 is the number of discs and C is the 215mm disc size. There is no D, so the discs have solid hubs for direct engagement. The same code system runs across the whole OS Giken clutch range.

Is the HTR2C easy to drive on the street?

OS Giken USA describes the HTR as a quiet, reliable clutch with a relatively moderate pedal, and its damped versions absorb drivetrain shock. Engagement is firmer than a factory clutch, but it is built for cars that are driven as well as raced.

Can the HTR2C Clutch for K20 K24 be rebuilt?

Yes. OS Giken sells Overhaul Kit A (HA081-BR50A), with new discs, center plates, pressure plate and cover bolts, and Overhaul Kit B (HA081-BR50B), which adds a new cover. Our team can order either kit when the clutch needs service. Kit B is the choice when the cover is also worn.

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Description

OS Giken HTR2C Clutch for K20 K24 Honda Acura RSX Civic Si, Twin Plate

OS Giken’s HTR2C Clutch for K20 K24 models is the twin plate clutch from OS Giken’s HTR series, built around two 215mm discs with solid hubs and an HTR cover built to hold more than the STR with a relatively moderate pedal. OS Giken USA rates it at about 650 lb-ft. OS Giken USA describes the HTR series as holding more capacity than the STR while keeping a relatively moderate pedal, and as a quiet, reliable clutch that can go years between overhauls.

Where It Sits in the Range

The HTR2C Clutch for K20 K24 cars is one of several OS Giken clutches listed for the K20 and K24 RSX and Civic. The R2C (about 750 lb-ft), STR2C (about 575 lb-ft) and TS2BS (about 500 lb-ft) cover other points in the range, so the choice comes down to power, pedal feel and how the car is used.

How OS Giken Japan Lists It

OS Giken USA and Turn 14 list the HTR2C for the K20 and K24. The OS Giken Japan table does not show the HTR2C for these cars, so our team will confirm fitment and release parts before the order is placed.

Features

Two 215mm discs with solid hubs
HTR cover with a relatively moderate pedal
Rated by OS Giken USA at about 650 lb-ft
Rebuildable with OS Giken overhaul kits

Applications

Acura RSX Type-S: DC5 | 2002-2006 | 2.0L K20A2 / K20Z1
Honda Civic Si: EP3 | 2002-2005 | 2.0L K20A3
Honda Civic Type R: EP3 / FD2 / FN2 | 2001-2011 | 2.0L K20A, as listed by OS Giken Japan

Notes

OS Giken rebuild parts for this clutch are Overhaul Kit A (HA081-BR50A) and Overhaul Kit B (HA081-BR50B)
Installation labor is not included

Frequently Asked Questions

How much power will the HTR2C hold? OS Giken USA rates the HTR2C Clutch for K20 K24 at about 650 lb-ft of torque. OS Giken USA says HTR clutches are typically good up to about 650 lb-ft, depending on the application. For more power than that, a higher capacity OS Giken series is the better match.
Who is the HTR2C made for? OS Giken USA describes the HTR series as holding more capacity than the STR while keeping a relatively moderate pedal, and as a quiet, reliable clutch that can go years between overhauls. On the K20 and K24 RSX and Civic it suits owners who want more capacity than the STR without a heavy pedal.
What does HTR2C mean? It is the OS Giken model code. HTR is the cover series, 2 is the number of discs and C is the 215mm disc size. There is no D, so the discs have solid hubs for direct engagement. The same code system runs across the whole OS Giken clutch range.
Is the HTR2C easy to drive on the street? OS Giken USA describes the HTR as a quiet, reliable clutch with a relatively moderate pedal, and its damped versions absorb drivetrain shock. Engagement is firmer than a factory clutch, but it is built for cars that are driven as well as raced.
Can the HTR2C Clutch for K20 K24 be rebuilt? Yes. OS Giken sells Overhaul Kit A (HA081-BR50A), with new discs, center plates, pressure plate and cover bolts, and Overhaul Kit B (HA081-BR50B), which adds a new cover. Our team can order either kit when the clutch needs service. Kit B is the choice when the cover is also worn.

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.

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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 HTR2C Clutch for K20 K24 Honda Acura RSX Civic Si, Twin Plate [HA081-BR5]

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OS Giken HTR2C Clutch for K20 K24 Honda Acura RSX Civic Si, Twin Plate

Where It Sits in the Range

How OS Giken Japan Lists It

Features

Applications

Notes

Frequently Asked Questions

About OS Giken

Reviews