Dorman - First Stop Brake Master Cylinder
Fits Dodge, Plymouth, Chrysler — 50 vehicle applications
NEW MASTER CYLINDER
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Review shipping eligibility for this region
- Canadian Owned
Dorman - First Stop M39451 Vehicle Fitment
Fits 50 vehiclesThis Dorman - First Stop Brake Master Cylinder fits Dodge, Plymouth, Chrysler vehicles.
Fits 1983-1984 Chrysler E Class; 1985 Chrysler Executive Limousine; 1983-1984 Chrysler Executive Sedan; 1984-1986 Chrysler Laser; 1983-1989 Chrysler LeBaron; 1983-1988 Chrysler New Yorker; 1983-1988 Chrysler Town & Country; 1983-1988 Dodge 600. Plus 13 more models listed below.
1989 Chrysler LeBaron
1989 Chrysler LeBaron
1987 Chrysler LeBaron
1987 Chrysler LeBaron
1987 Chrysler LeBaron
1987 Chrysler LeBaron
1987 Chrysler LeBaron
1987 Chrysler LeBaron
1985 Chrysler Executive Limousine
1985 Chrysler Executive Limousine
1984-1986 Chrysler Laser
1984-1986 Chrysler Laser
1983-1988 Chrysler New Yorker
1983-1988 Chrysler LeBaron
1983-1988 Chrysler Town & Country
1983-1988 Chrysler Town & Country
1983-1988 Chrysler New Yorker
1983-1988 Chrysler LeBaron
1983-1984 Chrysler E Class
1983-1984 Chrysler Executive Sedan
1983-1984 Chrysler Executive Sedan
1983-1984 Chrysler E Class
Dorman - First Stop M39451 Specifications
- Mounting Hardware Included
- No
- Mounting Hardware Included
- No
- Mounting Hardware Included
- Non
- Master Cylinder Material
- Aluminum
- Master Cylinder Material
- Aluminio
- Reservoir Included
- Yes
Dorman - First Stop M39451 Interchange Numbers
This part replaces and is compatible with the following part numbers
| Type | Brand | Part Number |
|---|---|---|
| Aftermarket | ACDelco | 18M242 |
| Aftermarket | Aimco | M900442 |
| Aftermarket | Alltech Automotive | 100-2397 |
| Aftermarket | ARI | 83-32032 |
| Aftermarket | ARI | 783-32032 |
| Aftermarket | Autospecialty | M-83032 |
| Aftermarket | Bendix | 11945 |
| Aftermarket | Bendix | 12855 |
| Aftermarket | CARDONE New | 13-1945 |
| Aftermarket | CARDONE Reman | 10-1945 |
| Aftermarket | Centric Parts | 130.63032 |
| Aftermarket | Centric Parts | 131.63032 |
| Aftermarket | Chrysler | 4271388 |
| Aftermarket | Chrysler | 4294268 |
| Aftermarket | Chrysler | 4294861 |
| Aftermarket | Chrysler | 4294862 |
| Aftermarket | Chrysler | 4342712 |
| Aftermarket | Chrysler | 4509602 |
| Aftermarket | Coni-Seal | MC108134 |
| Aftermarket | Coni-Seal | MC108134A |
| Aftermarket | Coni-Seal | MC1081341 |
| Aftermarket | Coni-Seal | MC1081342 |
| Aftermarket | DFC Brake Master Cylinders - Archived | 355-39010 |
| Aftermarket | Lusac | 108134 |
| Aftermarket | MPA | M1945 |
| Aftermarket | MPA | NM1945 |
| Aftermarket | Raybestos Brakes | MC39451 |
| Aftermarket | Wagner Brake | F108134 |
| Aftermarket | Wagner Brake | MC108134 |
Dorman - First Stop M39451 Product Description
This brake master cylinder is precision-engineered to match the design, function, and performance of the original master cylinder on specific vehicle years, makes and models. It is made of new, high-quality materials for a safe, durable replacement.
Key Features
- Precise replacement - cylinder housing is constructed to match the casting material of the original part and ensure similar performance
- Durable design - all rubber components are made of high-quality EPDM compound for resistance to glycol-based brake fluid
- 100% new - made entirely of new materials, not remanufactured, to ensure highest quality and safety
- Strict specifications - made to meet rigorous SAE International standards
About Dorman - First Stop
Shop Dorman - First Stop Brake Master Cylinder at Autrex with vehicle fitment details, current pricing, and checkout options for the Dorman - First Stop M39451. Eligible orders over $99 may qualify for free shipping, with some exceptions.
Seller reviews
What customers say about buying from Autrex — service, shipping and support. These are reviews of the store, not of this specific part.
- July 2026
Couldn't locate the parts for 2013 Civic Si Sedan. Front struts are an Anomaly found them at Capital autoparts. Great service and great parts. Shipping by CanPar sucked however
- July 2026
Great customer service. I placed an order for wheels and tires and it was an easy transaction. Make sure you read the expected lead times for delivery however. I misread that part, but the order did arrive in the correct timeframe stated. The Hostile rims and Hercules tires look great. Thank you
- July 2026
Awesome
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Frequently Asked Questions — Dorman - First Stop M39451
What vehicles does the Dorman - First Stop M39451 fit?
The Dorman - First Stop M39451 fits 50 vehicle applications including 1987-1994 Dodge Shadow, 1987-1994 Dodge Shadow, 1987-1994 Plymouth Sundance, 1987-1994 Plymouth Sundance, 1983-1990 Dodge Omni and 45 more. Check the full fitment list above to confirm your vehicle.
What parts does the Dorman - First Stop M39451 replace?
The Dorman - First Stop M39451 is a direct replacement for ACDelco 18M242, ARI 783-32032, ARI 83-32032, Aimco M900442, Alltech Automotive 100-2397 and 29 other part numbers. See the full interchange list for all compatible replacements.
How do I confirm the Dorman - First Stop M39451 fits my vehicle?
Select your year, make, model and engine in the vehicle selector on this page to see a fit or does-not-fit result for the Dorman - First Stop M39451. If your vehicle has options that change the part (for example brake package or axle), the result lists the questions to check. A parts specialist can also confirm fitment at 1-866-461-2787.
What are the shipping options for the Dorman - First Stop M39451?
Shipping options for the Dorman - First Stop M39451 are shown during checkout and may vary by item, address, and availability. Eligible orders over $99 may qualify for free shipping, with some exceptions. Call 1-866-461-2787 if you need help confirming shipping or pickup before ordering.
How much does the Dorman - First Stop M39451 cost?
The Dorman - First Stop M39451 is currently listed at $58.00 CAD at Autrex. Final price, shipping, taxes, and availability are confirmed during checkout. Call 1-866-461-2787 if you need help before ordering.
Is the Dorman - First Stop Brake Master Cylinder a direct fit replacement?
Fit depends on the vehicle and its configuration. Select your vehicle and review the fitment result for the Dorman - First Stop Brake Master Cylinder before ordering.