GMA Engineering Wagner Style Rear Master Cylinder 5/8 Bore Fits Harley-Davidson 1958-1979 FL FX
The GMA Wagner-style rear master cylinder brings back the responsive, consistent pedal feel that defined early Harley-Davidson rear brake systems. Built to the same geometry as the original, it eliminates the spongy response that worn or damaged stock cylinders develop, restoring the braking character your Harley was designed to have.
Key Features
- Direct Wagner-style replacement for the factory rear master cylinder on compatible 1958-1979 Harley-Davidson models
- CNC-machined billet 6061 aluminum construction for light weight and long service life
- Available in Natural machined, Polished, and Black anodized finishes
- 5/8-inch bore for factory-correct pedal feel and line pressure
- Complete with piston, spring, and boot kit
Technical Specifications
- Bore Size
- 5/8 inch
- Material
- Billet 6061 aluminum
- Finishes
- Natural, Polished, Black
- Includes
- Piston, spring, and boot kit
- Made in
- USA
Fitment Notes
- Fits Harley-Davidson 1958-1979 FL and FX models equipped with Wagner-style rear master cylinder
- Review the Fitment tab for the complete year and model breakdown
- Verify your OEM master cylinder style before ordering: Kelsey Hayes and Wagner styles are not interchangeable
- Not affiliated with or endorsed by Harley-Davidson.
Nick –
I’m giving the master cylinder 5-stars because I’ve used GMA M/Cyls. in numerous builds. Had to return this particular unit to BDL/GMA for possible flaw in the burnishing process of the bore. I don’t anticipate a problem with GMA correcting the issue.
Steven K. –
GMA always makes quality stuff