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Dorman CS37815 Clutch Slave Cylinder

Brand	Dorman CS37815
Bore Diameter	0.813
Describe Type	External
Item Grade	Standard Replacement
Package Contents	Clutch Slave Cylinder
Fits	Chevrolet and GMC · 48 vehicles

Direct replacement. Precision-engineered to match the original equipment design.

Standard replacement. External clutch slave cylinder for dependable hydraulic operation.

0.813 bore diameter for consistent clutch engagement.

Cross-references Centric Parts 138.62006, Four Seasons 37815 and Gates 12457 for the same application. See all 16.

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Clutch Slave Cylinder Replacement

Dorman CS37815 is a direct replacement clutch slave cylinder for manual transmission service on select Chevrolet and GMC trucks. It is precision-engineered to match the original equipment design, with a 0.813 bore diameter and external mounting style for the listed applications.

Key Features

Direct replacement for the original clutch slave cylinder
External design for the specified manual transmission applications
0.813 bore diameter for OE-style hydraulic operation
Standard replacement grade for routine repair work
Package contents: clutch slave cylinder

Detailed Description

This Dorman clutch slave cylinder, part number CS37815, is built for select 1988-1991 Chevrolet C1500, C2500, C3500, K1500, K2500, and K3500 models, as well as 1988-1991 GMC C1500, C2500, C3500, K1500, K2500, and K3500 models. It is intended for manual transmission hydraulic clutch service where an external slave cylinder with a 0.813 bore diameter is required. This part cross-references Four Seasons 37815 for the same application.

Common Problems It Can Solve

Clutch pedal that feels soft or inconsistent
Hydraulic fluid leakage at the slave cylinder
Difficulty disengaging the clutch during shifting
Reduced clutch release performance
Failure of the original external slave cylinder

Installation Notes and Tips

Verify bore diameter, mounting style, and vehicle application before installation. This unit is listed as an external clutch slave cylinder for the specified Chevrolet and GMC manual transmission applications. Inspect the hydraulic line, master cylinder, and related seals during service to help confirm the repair addresses the source of the clutch hydraulic issue.

Quality Assurance

Dorman designs this replacement to match the original equipment layout for the listed vehicles, supporting a straightforward repair on select Chevrolet and GMC C1500, C2500, C3500, K1500, K2500, and K3500 models. Part number CS37815 is built as a standard replacement for manual transmission clutch hydraulic service.

This part fits 48 vehicles

Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

Year	Make	Model	Drive Type	Position	Notes
1991	Chevrolet	C1500	RWD	N/A	Compatible with drum brake wheel cylinders with a 13/16 inch bore size.
1991	Chevrolet	C2500	RWD	N/A	Compatible with drum brake wheel cylinders with a 13/16 inch bore size.
1991	Chevrolet	C3500	RWD	N/A	Compatible with drum brake wheel cylinders with a 13/16 inch bore size.
1991	Chevrolet	K1500	4WD	N/A	Compatible with drum brake wheel cylinders with a 13/16 inch bore size.
1991	Chevrolet	K2500	4WD	N/A	Compatible with drum brake wheel cylinders with a 13/16 inch bore size.
1991	Chevrolet	K3500	4WD	N/A	Compatible with drum brake wheel cylinders with a 13/16 inch bore size.
1991	GMC	C1500	RWD	N/A	Compatible with drum brake wheel cylinders with a 13/16 inch bore size.
1991	GMC	C2500	RWD	N/A	Compatible with drum brake wheel cylinders with a 13/16 inch bore size.
1991	GMC	C3500	RWD	N/A	Compatible with drum brake wheel cylinders with a 13/16 inch bore size.
1991	GMC	K1500	4WD	N/A	Compatible with drum brake wheel cylinders with a 13/16 inch bore size.
1991	GMC	K2500	4WD	N/A	Compatible with drum brake wheel cylinders with a 13/16 inch bore size.
1991	GMC	K3500	4WD	N/A	Compatible with drum brake wheel cylinders with a 13/16 inch bore size.
1990	Chevrolet	C1500	RWD	N/A	Compatible with drum brake wheel cylinders with a 13/16 inch bore size.
1990	Chevrolet	C2500	RWD	N/A	Compatible with drum brake wheel cylinders with a 13/16 inch bore size.
1990	Chevrolet	C3500	RWD	N/A	Compatible with drum brake wheel cylinders with a 13/16 inch bore size.
1990	Chevrolet	K1500	4WD	N/A	Compatible with drum brake wheel cylinders with a 13/16 inch bore size.
1990	Chevrolet	K2500	4WD	N/A	Compatible with drum brake wheel cylinders with a 13/16 inch bore size.
1990	Chevrolet	K3500	4WD	N/A	Compatible with drum brake wheel cylinders with a 13/16 inch bore size.
1990	GMC	C1500	RWD	N/A	Compatible with drum brake wheel cylinders with a 13/16 inch bore size.
1990	GMC	C2500	RWD	N/A	Compatible with drum brake wheel cylinders with a 13/16 inch bore size.
1990	GMC	C3500	RWD	N/A	Compatible with drum brake wheel cylinders with a 13/16 inch bore size.
1990	GMC	K1500	4WD	N/A	Compatible with drum brake wheel cylinders with a 13/16 inch bore size.
1990	GMC	K2500	4WD	N/A	Compatible with drum brake wheel cylinders with a 13/16 inch bore size.
1990	GMC	K3500	4WD	N/A	Compatible with drum brake wheel cylinders with a 13/16 inch bore size.
1989	Chevrolet	C1500	RWD	N/A	Compatible with drum brake wheel cylinders with a 13/16 inch bore size.
1989	Chevrolet	C2500	RWD	N/A	Compatible with drum brake wheel cylinders with a 13/16 inch bore size.
1989	Chevrolet	C3500	RWD	N/A	Compatible with drum brake wheel cylinders with a 13/16 inch bore size.
1989	Chevrolet	K1500	4WD	N/A	Compatible with drum brake wheel cylinders with a 13/16 inch bore size.
1989	Chevrolet	K2500	4WD	N/A	Compatible with drum brake wheel cylinders with a 13/16 inch bore size.
1989	Chevrolet	K3500	4WD	N/A	Compatible with drum brake wheel cylinders with a 13/16 inch bore size.
1989	GMC	C1500	RWD	N/A	Compatible with drum brake wheel cylinders with a 13/16 inch bore size.
1989	GMC	C2500	RWD	N/A	Compatible with drum brake wheel cylinders with a 13/16 inch bore size.
1989	GMC	C3500	RWD	N/A	Compatible with drum brake wheel cylinders with a 13/16 inch bore size.
1989	GMC	K1500	4WD	N/A	Compatible with drum brake wheel cylinders with a 13/16 inch bore size.
1989	GMC	K2500	4WD	N/A	Compatible with drum brake wheel cylinders with a 13/16 inch bore size.
1989	GMC	K3500	4WD	N/A	Compatible with drum brake wheel cylinders with a 13/16 inch bore size.
1988	Chevrolet	C1500	RWD	N/A	Compatible with drum brake wheel cylinders with a 13/16 inch bore size.
1988	Chevrolet	C2500	RWD	N/A	Compatible with drum brake wheel cylinders with a 13/16 inch bore size.
1988	Chevrolet	C3500	RWD	N/A	Compatible with drum brake wheel cylinders with a 13/16 inch bore size.
1988	Chevrolet	K1500	4WD	N/A	Compatible with drum brake wheel cylinders with a 13/16 inch bore size.
1988	Chevrolet	K2500	4WD	N/A	Compatible with drum brake wheel cylinders with a 13/16 inch bore size.
1988	Chevrolet	K3500	4WD	N/A	Compatible with drum brake wheel cylinders with a 13/16 inch bore size.
1988	GMC	C1500	RWD	N/A	Compatible with drum brake wheel cylinders with a 13/16 inch bore size.
1988	GMC	C2500	RWD	N/A	Compatible with drum brake wheel cylinders with a 13/16 inch bore size.
1988	GMC	C3500	RWD	N/A	Compatible with drum brake wheel cylinders with a 13/16 inch bore size.
1988	GMC	K1500	4WD	N/A	Compatible with drum brake wheel cylinders with a 13/16 inch bore size.
1988	GMC	K2500	4WD	N/A	Compatible with drum brake wheel cylinders with a 13/16 inch bore size.
1988	GMC	K3500	4WD	N/A	Compatible with drum brake wheel cylinders with a 13/16 inch bore size.
No rows match your filter.

Directly replaces or cross-references 16 part numbers

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.

Centric Parts — 138.62006Four Seasons — 37815Gates — 12457LuK — LSC119Sachs — SH602818F7924-36006233781515585415CS2222F103762S-82006S0406SC37815SC103762W909102