GMA Engineering 5/8 Bore Rear Master Cylinder Rebuild Kit Kelsey Hayes and Wagner Style
Worn internal components are the most common reason a rear master cylinder loses its firm, responsive feel without visible external damage. The GMA 5/8-bore rebuild kit supplies every part needed to restore correct hydraulic function, giving Kelsey Hayes and Wagner-style rear master cylinders a second life without replacing the entire unit.
Key Features
- Fits both Kelsey Hayes-style and Wagner-style GMA 5/8-inch bore rear master cylinders
- Includes all wear components: Piston, seals, spring, and boot
- Precision-machined components maintain factory bore tolerances
- USA-made quality matched to GMA master cylinder specifications
Technical Specifications
- Application
- GMA Kelsey Hayes and Wagner-style 5/8-inch bore rear master cylinders
- Includes
- Piston, seals, spring, and boot
- Made in
- USA
Fitment Notes
- Fits GMA 5/8-inch bore rear master cylinders of both Kelsey Hayes and Wagner style
- Verify master cylinder bore size before ordering, this kit is for 5/8-inch bore only
- Review the Fitment tab for compatible master cylinder model details
Anonymous –
Item was perfect.
Anonymous –
Exact part, oem rebuild
Anonymous –
Received GMA rebuild kit MCRB-1 which is just what I ordered.
Ed jankoski –
Great rebuild kit