Press the pedal and feel the clutch respond with the Dorman First Stop Clutch Master Cylinder CM640021. It drops in as a direct-fit replacement for the 1998-2004 Nissan Frontier (L4-2.4L), the 1999-2004 Nissan Frontier (V6-3.3L), and the 2000-2004 Nissan Xterra in both L4-2.4L and V6-3.3L, handling the hydraulic link between your clutch pedal and the slave cylinder.
When you push the clutch pedal, this master cylinder generates the hydraulic pressure that travels downstream to disengage the clutch so you can shift. If a leaking or worn master cylinder is behind a soft pedal or hard shifting, this unit replaces it.
- Direct replacement: built to match the original clutch master cylinder used on the listed vehicles.
- Reverse-engineered: patterned from the original equipment so it fits and operates like the unit it replaces.
- Durable materials: includes high-grade rubber components compatible with standard brake fluid.
- Standard Replacement grade with a 0.625 in. bore; backed by engineers and quality-control experts in the United States.
Interchange: M0632 · M903319 · 072-9602 · 0729602 · 13623 · 136.42011 · 136.42020 · CM450090 · CM452700 · LMC386 · 306109Z4 · CM1090 · 306103S501 · 306103S507 · 306103S557 · 306109Z400 · 350119 · CMA350119 · SH5252 · CM134518 · CM141823 · F134518 · F141823. Manufacturer part number CM640021.
Product information is for general reference and may contain errors. See our Disclaimer.
This part cross-references / interchanges with the following part numbers:
M0632, M903319, 072-9602, 13623, 136.42011, 136.42020, CM450090, CM452700, LMC386, 306109Z4, CM1090, 306103S501, 306103S507, 306103S557, 306109Z400, 350119, SH5252, CM134518, CM141823, F134518, F141823
Frequently Asked Questions
What does the clutch master cylinder do?
When you press the clutch pedal, it generates hydraulic pressure that travels to the slave cylinder to disengage the clutch so you can shift gears.
Which vehicles does CM640021 fit?
1998-2004 Nissan Frontier (L4-2.4L), 1999-2004 Frontier (V6-3.3L), and 2000-2004 Nissan Xterra in both L4-2.4L and V6-3.3L. See the "Vehicles it fits" section for details.
What fluid is it compatible with?
It includes high-grade rubber components compatible with standard brake fluid. Consult your vehicle service information for the correct fluid specification.
What are signs this part may need replacing?
Signs may include fluid leaking around the cylinder, a soft or sinking clutch pedal, or difficulty shifting. Diagnose the cause first, as other components can produce these symptoms.
What comes in the package?
The package contains one clutch master cylinder. Country of origin: China.
