Dorman CM39803 Clutch Master Cylinder
OE Quality 60-Day Returns
Dorman

Dorman CM39803 Clutch Master Cylinder

Brand Dorman CM39803
Bore Diameter 0.625
Item Grade Standard Replacement
Package Contents Clutch Master Cylinder
Fits Ford and Mazda · 14 vehicles

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

Standard replacement. A dependable clutch master cylinder for restoring hydraulic operation.

Clutch master cylinder for manual transmission hydraulic systems.

Cross-references AMS Automotive M0750, National 39803 and OSC 13097 for the same application. See all 16.

$74.38Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
Step 2 — Quantity
Order total $74.38
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.
Not what you need? See all Clutch Master Cylinder options

Dorman CM39803 Clutch Master Cylinder

Dorman CM39803 is a standard replacement clutch master cylinder for manual transmission service. It is precision-engineered to match the original equipment design for specific vehicle applications, helping restore consistent clutch hydraulic operation in Ford Probe, Mazda 626, and Mazda MX-6 models.

Key Features

  • Direct replacement clutch master cylinder for manual transmission systems
  • Standard replacement grade for OE-style service
  • 0.625 bore diameter for the specified application
  • Designed to match original equipment design details
  • Package contents: clutch master cylinder

Detailed Description

This Dorman clutch master cylinder, part number CM39803, is built for specific 1988-1992 Mazda 626 and Mazda MX-6 applications, as well as 1989-1992 Ford Probe applications. It is intended for drivers searching for a clutch master cylinder for 1988-1992 Mazda 626, a clutch master cylinder for 1988-1992 Mazda MX-6, or a replacement clutch master cylinder for 1989-1992 Ford Probe manual transmission service. The 0.625 bore diameter and direct replacement design support OE-style fitment and hydraulic performance in the listed vehicles. This part cross-references National 39803 for the same application.

Common Repair Uses

  • Leaking clutch master cylinder
  • Soft or inconsistent clutch pedal feel
  • Difficulty disengaging the clutch
  • Hydraulic clutch operation loss from internal wear
  • Replacement for a malfunctioning original master cylinder

Installation Notes and Tips

Verify the bore diameter and vehicle application before installation. Confirm the hydraulic line connection and bleed the clutch system after installation to remove air from the circuit. For best results, inspect related clutch hydraulic components for wear or leakage during service.

Quality Assurance

Dorman designs this replacement part to match original equipment design requirements for the listed applications, supporting reliable service in the specified Ford and Mazda vehicles.

Related reading

This part fits 14 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
1992FordProbeN/ACompatible with drum brake wheel cylinders featuring a 5/8" bore size.
1992Mazda626N/ACompatible with drum brake wheel cylinders featuring a 5/8" bore size.
1992MazdaMX-6N/ACompatible with drum brake wheel cylinders featuring a 5/8" bore size.
1991FordProbeN/ACompatible with drum brake wheel cylinders featuring a 5/8" bore size.
1991Mazda626N/ACompatible with drum brake wheel cylinders featuring a 5/8" bore size.
1991MazdaMX-6N/ACompatible with drum brake wheel cylinders featuring a 5/8" bore size.
1990FordProbeN/ACompatible with drum brake wheel cylinders featuring a 5/8" bore size.
1990Mazda626N/ACompatible with drum brake wheel cylinders featuring a 5/8" bore size.
1990MazdaMX-6N/ACompatible with drum brake wheel cylinders featuring a 5/8" bore size.
1989FordProbeN/ACompatible with drum brake wheel cylinders featuring a 5/8" bore size.
1989Mazda626N/ACompatible with drum brake wheel cylinders featuring a 5/8" bore size.
1989MazdaMX-6N/ACompatible with drum brake wheel cylinders featuring a 5/8" bore size.
1988Mazda626N/ACompatible with drum brake wheel cylinders featuring a 5/8" bore size.
1988MazdaMX-6N/ACompatible with drum brake wheel cylinders featuring a 5/8" bore size.
Directly replaces or cross-references 16 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
AMS Automotive — M0750National — 39803OSC — 1309718M211023-14110071-7759136.45110CM1138CM117055CM250050CMA39803E92Z7A543BGJ2541400AM903135Q-53110SH5010