Dorman® - Clutch Master Cylinder

52 reviews|Item # sp4379
$13.63 - $217.36
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Product Details

Clutch Master Cylinder by Dorman®. The clutch master cylinder is a key component on a manual transmission vehicle. When you depress the clutch pedal, it applies hydraulic pressure to disengage the clutch so you can shift gears. A leaky or worn clutch master cylinder can’t develop the proper pressure, which can make shifting difficult or even impossible. This Dorman clutch master cylinder will restore hydraulic pressure and your ability to shift gears.


  • Restores proper clutch operation
  • Direct replacement for perfect fit and function
  • Reinforced nylon, cast iron or aluminum construction for long service life
  • High quality EPDM rubber components ensure compatibility with brake fluid
  • Rigorously tested to ensure conformity with product standards
  • Meets or exceeds OEM quality

When you push down on the brake pedal, the brake master cylinder applies hydraulic pressure to actuate the caliper pistons, which apply the brake pads to the rotors to stop your car. The clutch hydraulic system operates in a similar manner, but instead of calipers the hydraulic pressure actuates a slave cylinder and the clutch release bearing, disengaging the clutch and temporarily disconnecting the drivetrain from the engine so you can shift the transmission gears. Like the brake master cylinder, the clutch master cylinder can suffer defects like fluid leaks, internal wear of the bore and piston seals, and air in the system, which can reduce hydraulic pressure. These defects can reveal themselves in symptoms like a spongy pedal, difficulty shifting and popping out of gear.

If inspection and testing proves your clutch master cylinder to be faulty, a Dorman clutch master cylinder will restore hydraulic pressure and get your clutch and shifting capability back in operation. Dorman clutch master cylinders are designed to be direct replacements for the original equipment master cylinder, so you can be assured of ease of installation and proper function. They’re manufactured using the highest quality materials like reinforced nylon, cast iron or aluminum, according to application, and use premium EPDM rubber components that are compatible with the brake fluid used in the hydraulic system. Numerous quality control measures are employed to ensure this Dorman clutch master cylinder meets or exceeds OE product standards.

Dorman Products Inc. is well-known as a leader in providing quality auto parts to the aftermarket. They have earned their reputation for excellence from over three decades of experience in providing automotive replacement parts, fasteners and service line products primarily for the automotive aftermarket. Their prestigious position stems from a unique combination of application expertise, innovative product design, and breadth of product offerings, many of which are not conveniently or economically available elsewhere.

Warranty Information

  • Hybrid battery – fleet: 12 months from the date of purchase.
  • Hybrid battery – non-fleet: 36 months from the date of purchase.
  • Manifold Converters: 60 months or 50,000 miles from the date of purchase.
  • Heavy Duty DPF / DOC: 24 months from the date of purchase.
  • Light Duty DPF / DOC: 24 months or 36,000 miles from the date of purchase.
  • Heavy Duty EGR Coolers: 36 months from the date of purchase.
  • Light Duty EGR Coolers: Limited Lifetime
  • All other products: lifetime.

Dorman Products warrants that the product is free from defects in material and workmanship under normal use and service for the period stated above. Dorman will replace any of its products that in Dorman's reasonable determination does not comply with the foregoing warranty. This warranty becomes null and void if the damage is caused by: misuse, abuse or accident; the attachment of any unauthorized accessory; alteration to the product; improper installation; exposure to harsh weather and/or chemicals; or lack of proper maintenance. This warranty also becomes null and void if the product is opened or any sticker is tampered with, broken, or missing, or if the damage is caused by any other condition that is beyond the control of Dorman Products.

In all cases, Dorman shall not be responsible for any type of incidental, consequential, or special damages. All other warranties, including the implied warranties of fitness for a particular purpose and the implied warranty of merchantability, are excluded.

By accepting this product, you hereby waive and release any claim now or hereafter existing against Dorman Products, its employees, officers, directors, agents and customers, on account of any and all claims, demands, suits, causes of action and all legal proceedings, whether civil or criminal, damages, losses, liabilities, (including, but not limited to, strict liability in tort), obligations, penalties, judgments or fines and other sanctions.

Federal and/or state laws may provide you with other warranties for this product. Some states do not allow the exclusion or limitation of incidental or consequential damages.

Magnuson-Moss Warranty Act:
Legally, a vehicle manufacturer cannot void the warranty on a vehicle due to an aftermarket part unless they can prove that the aftermarket part caused or contributed to the failure in the vehicle (per the Magnuson Moss Warranty Act (15 U.S.C. 2302(C)) Learn More

Product Reviews


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Dorman® - Clutch Master Cylinder
Dorman® - Clutch Master Cylinder
Average Rating: 5 of 5
5 of 5
Master Cylinder for 1989 Dodge Raider
Was an easy replacement and returned function to my clutch pedal. It feels great so far, time will show if this unit is up to the task.
Posted by (Old Saybrook, CT) /
Was this review helpful for you? Yes
5 of 5
Experience Customer Support
Excellent all around.
Posted by (Presidio, TX) / 1997 Honda Civic
Was this review helpful for you? Yes
Low Prices Price match guarantee
In-House Experts We know our products
Guaranteed Fitment Always the correct part
Easy Returns Quick & Hassle Free

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