New Clutch Slave Cylinder 1-1/8-inch bore size FD32637 618767
Bexar Pro Components: Heavy-Duty Reliability for Fleet & Industry.
Key Specifications & Expert Features
- Bore Diameter: 1-1/8-inch bore size (Precision-honed for smooth actuation and high displacement)
- Inlet Port: 7/16-24 INV (Standard inverted flare thread for secure hydraulic connection)
- Application: Built for heavy-duty fleet trucks, loaders, and specialized 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:
- FD32637
- 618767
- 32637
- 645
Expert Installation & Field Note
Based on our shop experience specializing in heavy-duty brakes and clutches since 1985: When installing the F32884 slave cylinder, verify that the release fork and pivot points are lubricated and free of debris. Air trapped in the slave cylinder is the #1 cause of incomplete clutch release. We recommend gravity bleeding followed by a standard pressure bleed to ensure all air is purged from the 1-1/8-inch bore size chamber. Always inspect your hydraulic fluid for contamination to maximize the lifespan of the new unit.
⚠ CRITICAL: Verify Specifications
To ensure safety and proper clutch travel, verify that this slave cylinder’s 1-1/8-inch bore size and 7/16-24 INV inlet port match your existing unit exactly. Improper sizing will result in clutch drag or master cylinder damage.










