Dorman CM39903 Clutch Master Cylinder
Product ID: 9406243
🔧Precision reverse-engineered fit
⚙️Direct OE replacement
🛡️Durable high-grade rubber seals
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⚙️ Upgrade your clutch game with precision and durability — don’t get left behind!
The Dorman CM39903 Clutch Master Cylinder is a direct OE replacement part designed specifically for select Acura Integra and Honda Civic models from the 1990s to early 2000s. Precision reverse-engineered for a perfect fit, it features durable high-grade rubber components compatible with standard brake fluid. Backed by US-based engineering and quality control, this clutch master cylinder offers reliable, long-lasting performance and is a top-ranked choice among automotive clutch components.
| ASIN | B001PYCINM |
| Best Sellers Rank | #276,036 in Automotive ( See Top 100 in Automotive ) #48 in Automobile Clutch Primary Cylinders |
| Brand | Dorman |
| Customer Reviews | 4.3 4.3 out of 5 stars (292) |
| Date First Available | January 13, 2009 |
| Exterior | Machined |
| Item Weight | 12.8 ounces |
| Item model number | CM39903 |
| Manufacturer | Dorman Products |
| Manufacturer Part Number | CM39903 |
| Model | CM39903 |
| OEM Part Number | 072-8838; 072-9191; 072-9744; 13016; 13328; 136.40008; 137.40008; 18M2216; 18M2241; 23-08008; 350064; 350233; 385-398; 385-471; 39903; CM1162; CM131880; CM1366; CM140134; CM250010; CM250040; CMA350064; CMA350233; CMA39903; F131880; F140134; LMC310; M0808; M903167; M903242; Q-54008; Q-54013; SH5036; 46920-S04-A01; 46920-S5A-G01; 46920-SR3-A01; 46920-ST7-A01 |
| Product Dimensions | 6.6 x 5.1 x 1.6 inches |
D**E
Works for 1995 honda civic
Fits great on my 1995 honda civic. Old one was leaking onto the clutch pedal. Replaced it with this and now no more leaks.
S**S
So far so good
Been on the car for 6 months. No issues so far. Some people complain the studs are loose, mine were but I just tightened them before installing. But some people didn't. Tell me who's fault that is?
A**R
Perfect fit but installation may be difficult
The master cylinder fit my 1998 civic perfectly. If (like me) you're not a mechanic, be prepared. The actual installation is very simple. Removing and reattaching the cotter-pin to the clutch pedal may take some time. This is no fault of the master cylinder part. The attachment point to the clutch pedal is in a very awkward position. It requires you to lie on your back at an angle. FYI, as the area is so high up under the steering wheel side of the dash, a good light source will come in handy. I also used my smart phone to record video to locate the exact position of the cotter-pin for removal and installation, as it is difficult to see. Despite my installation difficulties, this is a great deal for the Do-it-yourself folks!
K**A
Leaks fast
Already leaking after only one month.
T**E
Satisfied
easy to install and it works
J**Y
Will fit 1997 Civic CX hatch
Installed on My 1997 Civic CX hatchback. Quality part is decent, fits properly, does the job👍 Best bang for your buck.
A**E
Works Great On My 1997 Civic
installed this along with a matching Dorman clutch slave cylinder. Exact fit for my car. Installation of both master and slave with all the adjustments were completed in about an hour. After about 3,500 miles, the system still feels nice and firm with no leaks. Very happy so far.
J**.
Perfect fit
Easy installation. Value for money. Queality
A**R
One Star
The size of the clutch line is too small doesn’t fit and no one makes an adapter
M**X
Doesn't fit.
Just received it today and tried to install and the thread size for the brake line nut was incorrect. The OEM master had a larger nut than this new replacement. Item does seem like it could be of quality but annoying having to deal with some trivial differences in parts.
Trustpilot
2 days ago
1 month ago