Dorman - First Stop Clutch Master Cylinder P/N:CM640133

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$109.99
MPN: CM640133
UPC: 885484130791
Item Package Quantity: 1
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Dorman - First Stop Clutch Master Cylinder P/N:CM640133
Dorman - First Stop Clutch Master Cylinder P/N:CM640133
$109.99

Get hydraulic pressure back to your clutch pedal with the Dorman – First Stop Clutch Master Cylinder CM640133. It installs as a direct replacement for the 2000-2003 Honda S2000 (L4-2.0L) and the 2004-2009 Honda S2000 (L4-2.2L). The clutch master cylinder converts pedal force into hydraulic pressure sent to the slave cylinder to disengage the clutch; if a leaking or malfunctioning master cylinder is behind a soft or sinking pedal, this unit replaces it.

  • Cast iron body: built with a metallic, cast iron cylinder for a solid pressure housing.
  • Reverse-engineered design: patterned from the original equipment to fit and function like the factory clutch master on the listed vehicles.
  • Fluid-ready internals: includes high-grade rubber components for compatibility with standard brake fluid.
  • Ready to plumb: single integrated reservoir, external cylinder type, 0.625 in bore, and an M10 x 1.0 outlet thread.

Not pre-bled or pre-filled — bleed the clutch hydraulic system after installation. Country of origin: China.

Interchange: M0820 · 13626 · 136.40012 · 46920S2A003 · LMC407 · 350129 · CMA350129 · CM142245 · F142245

Manufacturer part number CM640133.

This part cross-references / interchanges with the following part numbers:

M0820, 13626, 136.40012, 46920S2A003, LMC407, 350129, CMA350129, CM142245, F142245

Frequently Asked Questions

What does this clutch master cylinder do?

It converts clutch pedal force into hydraulic pressure sent to the slave cylinder to disengage the clutch. Signs it may need replacing include a soft, sinking, or leaking pedal.

Will this fit my Honda S2000?

It's listed for the 2000-2003 Honda S2000 (L4-2.0L) and the 2004-2009 Honda S2000 (L4-2.2L). Confirm your vehicle in the Buyer's Guide tab.

Does it come with a reservoir?

Yes. It includes a single integrated fluid reservoir, and the cylinder type is external.

Is it pre-bled or pre-filled?

No, it is not pre-bled or pre-filled. Bleed the clutch hydraulic system after installation following the vehicle service procedure.

What are the bore, thread, and fluid details?

It has a 0.625 in bore and an M10 x 1.0 outlet thread, and includes high-grade rubber components compatible with standard brake fluid.