MK-SYN117B Brass Master Kit RSX ITR CTR Si 6 Speed (05-15) | MK-SYN117B

Synchrotech MK-SYN117B Brass Master Rebuild Kit

Rebuild your 2005-2015 Honda / Acura K-series 6-speed transmission with the Synchrotech MK-SYN117B Brass Master Rebuild Kit. This kit is designed for compatible RSX, TSX, ITR, CTR, Civic Si, K20/K24, EP3, FN2, and FD2 6-speed applications using the single-cone 1-piece 5th/6th synchro setup.

This brass master kit is a reliable choice for street cars, daily drivers, and K-series transmission refreshes where smooth shifting and complete rebuild service are the goal.

Brass synchros are a proven replacement choice for street cars, daily drivers, and K-series transmission refreshes where smooth, consistent shift engagement is the goal.

Features

• Genuine Synchrotech master transmission rebuild kit
• Designed for select Honda / Acura K-series 6-speed manual transmissions
• Brass synchro configuration
• Helps restore smoother shifting and improved gear engagement
• Recommended for transmission rebuilds, high-mileage refreshes, and performance K-series builds
• Professional transmission installation recommended

Vehicle / Transmission Fitment

• 2005-2015 Honda / Acura K-series 6-speed manual transmission applications
• RSX, TSX, ITR, CTR, Civic Si, K20/K24, EP3, FN2, and FD2 fitment family
• Single-cone 1-piece 5th/6th synchro setup

Important Fitment Note

Confirm transmission code, gear stack, synchro design, and 5th/6th gear synchro style before ordering. Honda and Acura K-series 6-speed transmissions can vary by year, market, and internal transmission configuration.

What's Included

Master kit contents may vary by supplier batch, but this kit is intended as a full transmission master rebuild kit with brass synchros and related rebuild components. Confirm contents and transmission compatibility before installation.