Dorman - First Stop Brake Master Cylinder
Fits Chevrolet, GMC — 50 vehicle applications
NEW MASTER CYLINDER
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- Canadian Owned
Dorman - First Stop M101266 Vehicle Fitment
Fits 50 vehiclesThis Dorman - First Stop Brake Master Cylinder fits Chevrolet, GMC vehicles.
Fits 1975-1976 Chevrolet C10 Suburban; 1975-1980 Chevrolet C20; 1975-1980 Chevrolet C20 Suburban; 1975-1980 Chevrolet C30; 1975-1983 Chevrolet G30; 1975-1976 Chevrolet K10 Suburban; 1975-1980 Chevrolet K20; 1975-1980 Chevrolet K20 Suburban. Plus 19 more models listed below.
1979-1984 GMC P2500
1979-1984 GMC P2500
1979-1983 GMC G3500
1979-1982 GMC G3500
1979-1981 GMC P3500
1979-1981 GMC P3500
1979-1980 GMC C2500 Suburban
1979-1980 GMC K2500 Suburban
1979-1980 GMC K2500
1979-1980 GMC C2500
1979-1980 GMC C2500
1979-1980 GMC K2500 Suburban
1979-1980 GMC K2500
1979-1980 GMC C2500 Suburban
1976-1978 GMC P35
1975-1978 GMC G35
1975-1978 GMC C35
1975-1978 GMC G35
1975-1978 GMC P35
1975-1978 GMC C35
1975-1976 GMC K15 Suburban
1975-1976 GMC C15 Suburban
1975-1976 GMC K25
1975-1976 GMC C25
1975-1976 GMC C25 Suburban
1975-1976 GMC K25 Suburban
1975-1976 GMC P25
1975-1976 GMC K25 Suburban
1975-1976 GMC C15 Suburban
1975-1976 GMC C25
Dorman - First Stop M101266 Specifications
- Mounting Hardware Included
- No
- Mounting Hardware Included
- No
- Mounting Hardware Included
- Non
- Master Cylinder Material
- Cast Iron
- Master Cylinder Material
- Hierro fundido
- Reservoir Included
- Yes
Dorman - First Stop M101266 Interchange Numbers
This part replaces and is compatible with the following part numbers
| Type | Brand | Part Number |
|---|---|---|
| Aftermarket | ACDelco | 18M92 |
| Aftermarket | Aimco | M900261 |
| Aftermarket | Alltech Automotive | 100-2583 |
| Aftermarket | ARI | 83-44008 |
| Aftermarket | ARI | 783-44008 |
| Aftermarket | Autospecialty | M-86008 |
| Aftermarket | Bendix | 11730 |
| Aftermarket | CARDONE New | 13-1534 |
| Aftermarket | CARDONE Reman | 10-1534 |
| Aftermarket | Centric Parts | 130.66008 |
| Aftermarket | Centric Parts | 131.66008 |
| Aftermarket | Coni-Seal | MC101266 |
| Aftermarket | DFC Brake Master Cylinders - Archived | 355-47142 |
| Aftermarket | General Motors | 2623214 |
| Aftermarket | General Motors | 5472452 |
| Aftermarket | General Motors | 5474229 |
| Aftermarket | General Motors | 18002458 |
| Aftermarket | General Motors | 18005215 |
| Aftermarket | General Motors | 18008633 |
| Aftermarket | Lusac | 101266 |
| Aftermarket | Lusac | 2623214 |
| Aftermarket | MPA | M1583 |
| Aftermarket | MPA | M1730 |
| Aftermarket | MPA | NM1730 |
| Aftermarket | Raybestos Brakes | MC39075 |
| Aftermarket | Wagner Brake | F79821 |
| Aftermarket | Wagner Brake | F101266 |
| Aftermarket | Wagner Brake | MC79821 |
| Aftermarket | Wagner Brake | MC101266 |
Dorman - First Stop M101266 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 M101266. 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 M101266
What vehicles does the Dorman - First Stop M101266 fit?
The Dorman - First Stop M101266 fits 50 vehicle applications including 1975-1984 Chevrolet P20, 1975-1984 Chevrolet P20, 1979-1984 GMC P2500, 1979-1984 GMC P2500, 1975-1983 Chevrolet G30 and 45 more. Check the full fitment list above to confirm your vehicle.
What parts does the Dorman - First Stop M101266 replace?
The Dorman - First Stop M101266 is a direct replacement for ACDelco 18M92, ARI 783-44008, ARI 83-44008, Aimco M900261, Alltech Automotive 100-2583 and 24 other part numbers. See the full interchange list for all compatible replacements.
How do I confirm the Dorman - First Stop M101266 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 M101266. 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 M101266?
Shipping options for the Dorman - First Stop M101266 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 M101266 cost?
The Dorman - First Stop M101266 is currently listed at $68.00 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.