HomeCentric 130.67004 Brake Master Cylinder
Part #: 130.67004

Centric 130.67004 Brake Master Cylinder

Centric Premium Brake Master Cylinders
6 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Centric Premium Brake Master Cylinders
Fitment: Jeep, CJ5 and CJ7
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Overview of Centric Premium Brake Master Cylinder 130.67004

The Centric Premium Brake Master Cylinder 130.67004 is engineered for reliable brake hydraulics performance on Jeep CJ5 and CJ7 models. Designed with durable cast iron materials and an integral reservoir, this master cylinder ensures consistent braking response and longevity.

  • Constructed from cast iron for both master cylinder and reservoir
  • Integral single reservoir included for streamlined installation
  • Two mounting holes for secure attachment
  • Master cylinder bore diameter of 1.063 inches (26.988 mm) with a straight bore type
  • Includes master cylinder cap but excludes mounting hardware, brake booster, push rod, and bleeder hoses
  • Two ports with inverted flare types: primary outlet thread size 1/2"-20 and secondary outlet thread size 9/16"-18
  • Compatible with Jeep CJ5 and CJ7 models

Details on Centric Premium Brake Master Cylinders

The Centric Premium Brake Master Cylinders line focuses on delivering precise hydraulic control and durability for a variety of vehicle applications. This product line emphasizes quality materials such as cast iron construction and integral reservoir designs to maintain brake fluid integrity and system reliability. The 130.67004 part benefits from this engineering approach, providing a dependable replacement for Jeep CJ5 and CJ7 brake systems.

Product Specifications and Features

This brake master cylinder features a cast iron master cylinder and reservoir, ensuring resistance to wear and corrosion. The single integral reservoir simplifies fluid management and installation. With a bore diameter of 1.063 inches (26.988 mm), the straight bore design supports consistent hydraulic pressure. The unit includes a master cylinder cap but does not come with mounting hardware, brake booster, push rod, or bleeder hoses, so these components must be sourced separately if needed. The two mounting holes provide a secure fitment, and the two outlet ports have inverted flare threads sized 1/2"-20 (primary) and 9/16"-18 (secondary), compatible with standard brake line fittings.

Compatible Vehicles and Applications

  • Replacement brake master cylinder for Jeep CJ5 models
  • Replacement brake master cylinder for Jeep CJ7 models
  • Ideal for restoring brake hydraulics in classic Jeep vehicles
  • Addresses issues such as brake fluid leaks, spongy brake pedal feel, and inconsistent braking pressure
  • Suitable for vehicles requiring a 1.063 inch bore diameter master cylinder with integral reservoir

Installation Notes and Tips

When installing the Centric Premium Brake Master Cylinder 130.67004, ensure the mounting surface is clean and free of debris. Since mounting hardware is not included, use appropriate bolts matching the two mounting holes. Verify compatibility of brake lines with the inverted flare thread sizes (1/2"-20 primary and 9/16"-18 secondary) before installation. Bleeding the brake system thoroughly after installation is essential to remove air and ensure proper brake function. The master cylinder cap is included, but additional components such as push rods and brake boosters must be installed separately if required by the vehicle.

Quality Assurance and Warranty

Centric Premium Brake Master Cylinders are manufactured to meet or exceed OEM specifications for fit, form, and function. The cast iron construction provides durability and resistance to corrosion. While specific warranty details are not provided here, Centric products typically come with a limited warranty against defects in materials and workmanship. For exact warranty terms, consult the product documentation or manufacturer.

BrandCentric
Part Number130.67004
PositionCentric Premium Brake Master Cylinders
Bleeder Hoses IncludedNo
Bore Size1.063
Bore Size26.988
Bore TypeStraight
Boss, Nipple or Port: Front, Left: #A [cntrc]9/16"-18 inv
Boss, Nipple or Port: Rear: #A [cntrc]1/2"-20 inv
Brake Booster IncludedNo
Cylinder Bore Dia in1 1/16"
Master Cylinder Bore Diameter1.063
Master Cylinder Bore Diameter26.988
Master Cylinder Cap IncludedYes
Master Cylinder MaterialCast Iron
Mounting Bracket IncludedNo
Mounting Hardware IncludedNo
Mounting Hole Quantity2
Port Quantity2
Primary Bore Diameter1.063
Primary Bore Diameter26.988
Primary Outlet Flare TypeInverted
Primary Outlet Flare Type [cntrc]Inverted
Primary Outlet Thread Diameter0.500
Primary Outlet Thread Size1/2"-20
Primary Outlet Threads Per Inch20
Publication Bore [cntrc]1 1/16"
Push Rod IncludedNo
Push Rod Lgth / DepthDimple
Push Rod: Length / Depth [cntrc] indmpl
Reservoir IncludedYes
Reservoir MaterialCast Iron
Reservoir StyleIntegral
Reservoir TypeSingle
Secondary Outlet Flare TypeInverted
Secondary Outlet Flare Type [cntrc]Inverted
Secondary Outlet Thread Diameter0.5625
Secondary Outlet Thread Size9/16"-18
Secondary Outlet Threads Per Inch18
Weight [cntrc] kgs2.27
Weight [cntrc] lbs5

This part fits 6 vehicles. Search below:

YearMakeModelPositionNotes
1978JeepCJ5N/A11" Rear Drum; 6 Bolt Steering Knuckle; Centric Premium Brake Master Cylinders
1978JeepCJ5N/A11" Rear Drum; 2 Bolt Steering Knuckle; Centric Premium Brake Master Cylinders
1978JeepCJ7N/A11" Rear Drum; 6 Bolt Steering Knuckle; Centric Premium Brake Master Cylinders
1978JeepCJ7N/A11" Rear Drum; 2 Bolt Steering Knuckle; Centric Premium Brake Master Cylinders
1977JeepCJ5N/ADrum Brake Shoe.; Centric Premium Brake Master Cylinders
1977JeepCJ7N/ADrum Brake Shoe.; Centric Premium Brake Master Cylinders

* 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:

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