Losing clutch feel or spotting hydraulic fluid near the bellhousing? The Dorman - First Stop Clutch Slave Cylinder CS123693 is the externally mounted hydraulic unit that converts pressure from the clutch master cylinder into the mechanical push that moves the release fork and disengages the clutch. It installs as a direct-fit replacement across a range of medium-duty cab-forward trucks, including the 1987-1998 Chevrolet W4500 Tiltmaster and Isuzu NPR, the 1995-1998 Chevrolet W3500 Tiltmaster, and GMC W3500 Forward and W4500 Forward models.
This is an external-type slave cylinder. If a leaking or worn slave cylinder is behind a soft pedal or hard shifting, this replaces it. Country of origin: Taiwan.
Fitment:
Interchange: 18F131 · S0921 · W909158 · S-62001 · S62001 · 12400 · 138.76001 · SC551210 · 94319298 · 94452957 · 94461373 · 97032849 · 8943192981 · 8944613730 · 8970328491 · SC37932 · F123693 · SC123693
Manufacturer part number CS123693.
This part cross-references / interchanges with the following part numbers:
What does the clutch slave cylinder do?
It's the external hydraulic cylinder that receives pressure from the clutch master cylinder and pushes the release fork to disengage the clutch when you press the pedal.
What are signs mine may need replacing?
Common signs include hydraulic fluid leaks, a soft or sinking clutch pedal, and difficulty shifting. Diagnose the cause first, since these symptoms can have other sources.
What vehicles does CS123693 fit?
It's a direct-fit replacement for medium-duty trucks such as the 1987-1998 Chevrolet W4500 Tiltmaster and Isuzu NPR, plus W3500 Tiltmaster and GMC W3500/W4500 Forward models. See the Buyer's Guide tab for engines.
What fluid does it use?
It has high-grade rubber components designed for compatibility with standard brake fluid, which is the fluid used in the clutch hydraulic system.
What comes in the box?
The package contains the clutch slave cylinder. After installation, bleed the clutch hydraulic system per the vehicle service procedure to remove trapped air.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.