New Clutch Slave Cylinder 1-inch bore size FD36117 29481-C 689
Bexar Pro Components: Heavy-Duty Reliability for Fleet & Industry.
Key Specifications & Expert Features
- Bore Diameter: 1-inch bore size (Critical for optimal hydraulic displacement and pedal feel)
- Inlet Port: 7/16-24 INV (Standard inverted flare connection)
- Mounting: 3/8″-16 threaded mounting holes
- Components: Includes 8-inch pushrod (Note: see separate listing for version without rod)
- Application: Suitable for high-pressure systems in trucks, buses, and industrial drivetrains.
- Repair Kit: N/A (No rebuild kit available; full unit replacement required to ensure system integrity)
Verified Casting & Part Numbers
Google Search & Fitment Warning: Matching your existing casting number is the most reliable method to ensure correct fitment. This unit replaces:
- FD36117
- 29481-C
- 689
- 618684
- 36117-7
- SC37899
Expert Installation & Field Note
Based on our shop experience specializing in heavy-duty brakes since 1985: When installing this unit, ensure the 8-inch pushrod is perfectly aligned with the release fork. Improper pushrod alignment can cause side-loading on the internal piston, leading to premature seal failure. Always gravity bleed the 1-inch bore size chamber before finishing with a pressure bleed to ensure a rock-solid pedal. If your existing system has contaminated fluid, flush the lines completely to protect the new slave cylinder.
⚠ CRITICAL: Verify Specifications
To ensure safety and proper clutch travel, verify that this slave cylinder’s 1-inch bore size and 8-inch rod length match your current configuration. This component is designed for hydraulic clutch systems only.




