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Ignitions and Electrical› Wiring Components

KTuned

S2K Style CMC & Billet Reservoir Combo

$202.39 $175.99 Save $26.40

SKU: KTD-CMC-MR2

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Special Order
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$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The K-Tuned S2K Style CMC & Billet Reservoir Combo is a direct replacement clutch master cylinder designed for specific Honda Civic and Acura Integra models. It features an integrated billet aluminum reservoir, machined from 6061 aluminum, offering the same volume as the OEM unit.

This combo replaces the stock clutch line and remote reservoir, mounting the custom-fitted aluminum reservoir directly to the CMC. A double o-ring seal and diaphragm are incorporated to prevent leaks and interaction between air and brake fluid, which is crucial for maintaining fluid integrity and preventing premature clutch fatigue.
Show original supplier description
The K-Tuned S2K Style CMC & Billet Reservoir Combo is a direct replacement clutch master cylinder and integrated reservoir assembly for 1992-1995 Honda Civic EG, 1996-2000 Honda Civic EK, and 1994-2001 Acura Integra DC2 models. This kit revisits the design for older chassis, combining the Clutch Master Cylinder (CMC) with a new billet reservoir. It eliminates the need for an S2000 CMC and adapter by mounting the reservoir directly to the master cylinder. The aluminum reservoir, machined from 6061 aluminum, matches OEM fluid volume and features a double o-ring seal for leak prevention. A diaphragm is included to manage fluid movement without exposing the brake fluid to air, which is vital as brake fluid is hygroscopic and can degrade clutch performance. Installation is described as simple: install the components, bleed the system with new clutch fluid, and ensure the slave cylinder on the transmission is leak-free. Notes for specific applications include: This combo will fit Right-Hand Drive (RHD) vehicles with the appropriate clutch line selection, and for RHD B/D series cars, the standard K series clutch line should be selected. A Honda Part# 46943-S5A-003 is specified as a replacement seal for the 3an fittings.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandKTuned
Part NumberKTD-CMC-MR2
CategoryIgnitions and Electrical
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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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