Clutch Masters MC08150-R .75- Bore Master Cylinder Upgrade for 17-21 Civic EX/Si

Vehicle Fitment

• 2017-2021 Honda Civic EX and Civic Si (1.5-L DOHC Turbo I4; FWD; automatic or manual transmission)

Fitment Notes

• Billet aluminum master cylinder upgrade kit with 0.75- bore, stainless braided -3-AN line, billet clevis and reservoir cap
• Replaces factory clutch master cylinder and clutch delay valve for sharper pedal response
• Compatible with OEM slave cylinder and hydraulic release bearing; not compatible with K20/K24 or hybrid models

Features

• 0.75- bore billet master cylinder delivers increased clamp pressure without added pedal effort
• Integrated 6061 aluminum reservoir and remote bracket for clean mounting
• Stainless braided PTFE line with -3-AN fittings for durability and performance
• Pedal clevis and rod adjustable for precise engagement tuning
• Eliminates clutch delay valve--reduces engage lag in quick shifts
• Plug-and-play fitment; uses OEM slave cylinder
• Manufactured in the USA to OEM build tolerances
• Limited manufacturer warranty included

Specifications

• Part Type: Clutch Master Cylinder Upgrade Kit
• Bore: 0.75- (.75in)
• Line: Stainless braided PTFE -3-AN
• Fitment: 2017-2021 Civic EX/Si 1.5-L Turbo (OEM hydraulic release)
• Weight: approx.-3.0-lb
• Warranty: Clutch Masters limited warranty

Included Components

• 1- Billet 0.75- bore master cylinder
• 1- Stainless braided -3-AN line (with fittings)
• 1- Remote reservoir with billet cap and bracket
• 1- Adjustable billet clevis and jam nut
• 1- Rubber feed hose and mounting hardware
• Installation instructions

Product Description

The Clutch Masters MC08150-R Master Cylinder Upgrade Kit is engineered for 2017-2021 Honda Civic EX and Si models equipped with the 1.5-L turbocharged engine. Featuring a 0.75- bore billet aluminum master, this kit replaces the factory master cylinder and delay valve with a responsive, direct-feel hydraulic setup. It delivers more consistent pedal sense without increased pressure.

The kit includes a stainless braided PTFE clutch line, remote reservoir, and billet clevis assembly for precise engagement adjustment. Designed to work cleanly with the OEM slave cylinder or hydraulic release bearing, it installs with OEM routing and no chassis modifications. Ideal for upgraded clutch setups or drivers seeking sharper shift response.

Manufactured in the USA using premium materials and Clutch Masters quality standards, the MC08150-R kit enhances clutch performance and reliability. It includes Clutch Masters' limited warranty and is compatible with OEM hydraulic releases on EX/Si 1.5-L turbo Civics.