HomeBrake > Brake HydraulicsDorman M99294 Brake Master Cylinder
Part #: M99294

Dorman M99294 Brake Master Cylinder

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29 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Chrysler, Dodge, and Plymouth, Fifth Avenue, Diplomat, Gran Fury, Cordoba, Imperial, Mirada, New Yorker, LeBaron, Newport, Town & Country, St. Regis, Aspen, Volare, and Magnum
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Reliable Brake Master Cylinder for Chrysler and Dodge Vehicles

The Dorman M99294 Brake Master Cylinder is engineered to provide consistent hydraulic pressure for your braking system. Designed specifically for Chrysler and Dodge models such as the Aspen, LeBaron, and Town & Country, this master cylinder ensures proper brake function and safety.

  • Master cylinder bore diameter: 1.031 inches for precise hydraulic control
  • Constructed from durable aluminum material for corrosion resistance
  • Includes reservoir for fluid storage and easy maintenance
  • Two outlet ports with rearward outlet size 1/2-20 and secondary outlet thread diameter 9/16-20
  • Package contains the master cylinder unit; mounting hardware not included

Detailed Product Description

The Dorman M99294 brake master cylinder is designed to meet the hydraulic needs of various Chrysler and Dodge vehicles, including the Imperial, Magnum, and New Yorker. Its 1.031-inch bore diameter allows for accurate brake fluid displacement, ensuring responsive braking performance. Made from aluminum, this master cylinder offers enhanced durability and resistance to corrosion compared to traditional cast iron units. The included reservoir simplifies brake fluid management, while the two outlet ports accommodate standard brake line fittings with rearward and secondary outlet thread sizes of 1/2-20 and 9/16-20 respectively. This part is ideal for restoring brake hydraulics on compatible vehicles without the need for additional sensors or mounting hardware.

Common Applications and Issues Addressed

  • Restores proper brake fluid pressure in Chrysler Aspen and Dodge Magnum models
  • Replaces worn or leaking master cylinders causing brake pedal sponginess
  • Solves brake fluid reservoir leaks in Dodge Town & Country and Chrysler New Yorker
  • Addresses brake failure symptoms due to internal cylinder wear
  • Improves brake system reliability on Chrysler Fifth Avenue and Dodge LeBaron

Installation Notes and Tips

  • Ensure compatibility with your specific Chrysler or Dodge model before installation
  • Bleed the brake system thoroughly after installation to remove air pockets
  • Mounting hardware is not included; reuse existing hardware or source separately
  • Inspect brake lines and fittings for wear or damage during replacement
  • Follow manufacturer torque specifications for outlet fittings to prevent leaks

Quality Assurance and Warranty

Dorman manufactures the M99294 brake master cylinder to meet or exceed OEM standards for fit and function. The aluminum construction provides long-term corrosion resistance, contributing to reliable brake system performance. While mounting hardware is not included, the part is designed for direct replacement on compatible Chrysler and Dodge vehicles. Warranty coverage details can be obtained from the product documentation or Dorman directly to ensure peace of mind with your purchase.

BrandDorman
Part NumberM99294
Master Cylinder Bore Diameter1.031
Master Cylinder MaterialAluminum
Mounting Hardware IncludedNo
Number of Outlets2
Package ContentsMaster Cylinder
Rearward Outlet Size1/2-20
Reservoir IncludedYes
Secondary Outlet Thread Diameter9/16-20
Sensor IncludedNo

This part fits 29 vehicles. Search below:

YearMakeModelPositionNotes
1989ChryslerFifth AvenueN/ABrake Master Cylinder bore size is 1.0313 inches.
1988ChryslerFifth AvenueN/ABrake Master Cylinder bore size is 1.0313 inches.
1987ChryslerFifth AvenueN/ABrake Master Cylinder bore size is 1.0313 inches.
1986ChryslerFifth AvenueN/ABrake Master Cylinder bore size is 1.0313 inches.
1985ChryslerFifth AvenueN/ABrake Master Cylinder bore size is 1.0313 inches.
1984ChryslerFifth AvenueN/ABrake Master Cylinder bore size is 1.0313 inches.
1983ChryslerFifth AvenueN/ABrake Master Cylinder bore size is 1.0313 inches.
1983ChryslerImperialN/ABrake Master Cylinder bore size is 1.0313 inches.
1982ChryslerImperialN/ABrake Master Cylinder bore size is 1.0313 inches.
1982ChryslerNew YorkerN/ABrake Master Cylinder bore size is 1.0313 inches.
1981ChryslerImperialN/ABrake Master Cylinder bore size is 1.0313 inches.
1981ChryslerLeBaronN/ABrake Master Cylinder bore size is 1.0313 inches.
1981ChryslerNew YorkerN/ABrake Master Cylinder bore size is 1.0313 inches.
1981ChryslerNewportN/ABrake Master Cylinder bore size is 1.0313 inches.
1981ChryslerTown & CountryN/ABrake Master Cylinder bore size is 1.0313 inches.
1980ChryslerLeBaronN/ABrake Master Cylinder bore size is 1.0313 inches.
1980ChryslerNew YorkerN/ABrake Master Cylinder bore size is 1.0313 inches.
1980ChryslerNewportN/ABrake Master Cylinder bore size is 1.0313 inches.
1980ChryslerTown & CountryN/ABrake Master Cylinder bore size is 1.0313 inches.
1980DodgeAspenN/ABrake Master Cylinder bore size is 1.0313 inches.
1979ChryslerLeBaronN/ABrake Master Cylinder bore size is 1.0313 inches.
1979ChryslerNew YorkerN/ABrake Master Cylinder bore size is 1.0313 inches.
1979ChryslerNewportN/ABrake Master Cylinder bore size is 1.0313 inches.
1979ChryslerTown & CountryN/ABrake Master Cylinder bore size is 1.0313 inches.
1979DodgeAspenN/ABrake Master Cylinder bore size is 1.0313 inches.
1979DodgeMagnumN/ABrake Master Cylinder bore size is 1.0313 inches.
1978ChryslerLeBaronN/AAluminum; Bore: 1.0313 In.; w/2 Bolt Mount
1978ChryslerTown & CountryN/AAluminum; 2 Bolt
1978DodgeAspenN/ABrake Master Cylinder with Plastic Reservoir featuring a bore size of 1.0313 inches.

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

10-18221182213-1822130.6302818M8425390343766254783-3202899294F99294M-83028M1822M900245MC99294

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.