Homeβ€Ί Centric 130.66021 Brake Master Cylinder
Part #: 130.66021

Centric 130.66021 Brake Master Cylinder

Centric Premium Brake Master Cylinders
80 vehicles fit this part
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OE Direct Replacement β€” Bolt-on fit, no modifications needed
Centric Premium Brake Master Cylinders
Fitment: Dodge, Chevrolet, and GMC, Ram 1500, Blazer, C1500, C1500 Suburban, C2500, C2500 Suburban, K1500, K1500 Suburban, K2500, and Yukon
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Overview of Centric Premium Brake Master Cylinder 130.66021

The Centric Premium Brake Master Cylinder 130.66021 is engineered for reliable brake hydraulics performance in select Chevrolet, Dodge, and GMC trucks and SUVs. Designed with durable aluminum construction and a plastic reservoir, this master cylinder ensures consistent braking response for vehicles like the Chevrolet Blazer, GMC Yukon, and Dodge Ram 1500.

  • Aluminum master cylinder body for strength and corrosion resistance
  • Plastic single reservoir with removable style for easy maintenance
  • Includes master cylinder cap; push rod and brake booster not included
  • Two mounting holes for secure installation
  • Primary and secondary outlet thread sizes: 1/2"-20 and 9/16"-18 inverted flare
  • Stepped bore design with primary bore diameter of 1.575 inches and secondary bore diameter of 1.126 inches
  • Compatible with Chevrolet Blazer, C1500, C1500 Suburban, C2500, C2500 Suburban, K1500, K1500 Suburban, K2500, Dodge Ram 1500, and GMC Yukon

About Centric Premium Brake Master Cylinders

The Centric Premium Brake Master Cylinders line focuses on delivering precise hydraulic control and durability for brake systems. This product line emphasizes quality materials such as aluminum for the cylinder and plastic for the reservoir, ensuring long-lasting performance under demanding conditions. The 130.66021 part benefits from this engineering approach, providing a reliable replacement option for brake master cylinders in various Chevrolet, Dodge, and GMC models.

Product Details and Specifications

This brake master cylinder features a stepped bore design with a primary bore diameter of 1.575 inches (40 mm) and a secondary bore diameter of 1.126 inches (28.6 mm), optimizing hydraulic pressure distribution. The single plastic reservoir is removable, facilitating fluid checks and maintenance. The unit includes a master cylinder cap but does not come with mounting hardware, push rod, brake booster, bleeder hoses, or mounting bracket. The two mounting holes ensure proper fitment and secure attachment. Both primary and secondary outlets use inverted flare types with thread sizes of 1/2"-20 and 9/16"-18 respectively, matching OEM specifications for the listed vehicle models.

Common Applications and Problem Solving

  • Replacement for worn or leaking brake master cylinders in Chevrolet Blazer and GMC Yukon
  • Restores proper brake fluid pressure in Dodge Ram 1500 brake systems
  • Addresses brake pedal sinking or sponginess due to master cylinder failure
  • Solves fluid reservoir leaks with a durable plastic reservoir design
  • Improves brake system reliability in Chevrolet and GMC full-size trucks and SUVs

Installation Notes and Tips

  • Verify compatibility with your specific make and model before installation
  • Ensure brake fluid system is properly bled after installation to remove air
  • Use OEM or compatible brake lines matching the 1/2"-20 and 9/16"-18 inverted flare threads
  • Mounting hardware is not included; reuse existing hardware or source separately
  • Inspect brake booster and push rod components as they are not included with this part

Quality Assurance and Warranty

Centric Premium Brake Master Cylinders are manufactured to meet or exceed OEM standards for fit, form, and function. The 130.66021 part undergoes rigorous quality control to ensure durability and performance in brake hydraulic systems. Warranty coverage details should be confirmed with the original product documentation or supplier.

BrandCentric
Part Number130.66021
PositionCentric Premium Brake Master Cylinders
Bleeder Hoses IncludedNo
Bore TypeStepped
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 mm28.6 / 40
Master Cylinder Bore Diameter Secondary [cntrc] in1.126
Master Cylinder Bore Diameter Secondary [cntrc] mm28.600
Master Cylinder Cap IncludedYes
Master Cylinder MaterialAluminum
Mounting Bracket IncludedNo
Mounting Hardware IncludedNo
Mounting Hole Quantity2
Port Quantity2
Primary Bore Diameter1.575
Primary Bore Diameter40.000
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]40mm - 28.6mm
Push Rod IncludedNo
Push Rod Lgth / DepthDimple
Push Rod: Length / Depth [cntrc] indmpl
Reservoir IncludedYes
Reservoir MaterialPlastic
Reservoir StyleRemovable
Reservoir TypeSingle
Secondary Bore Diameter1.126
Secondary Bore Diameter28.600
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] kgs1.62
Weight [cntrc] lbs3.56

This part fits 80 vehicles. Search below:

YearMakeModelBody TypeLitersCylindersFuel TypePositionNotes
1994DodgeRam 1500N/ACentric Premium Brake Master Cylinders
1993ChevroletBlazerN/AFull Size; Centric Premium Brake Master Cylinders
1993ChevroletC1500N/ACentric Premium Brake Master Cylinders
1993ChevroletC1500 SuburbanN/ACentric Premium Brake Master Cylinders
1993ChevroletC2500N/A11" Rear Drum; 7200lb GVW; Centric Premium Brake Master Cylinders
1993ChevroletC2500 SuburbanN/AVacuum Boost; Centric Premium Brake Master Cylinders
1993ChevroletK1500N/A10" Rear Drum; 8 1/2" Rear End; Centric Premium Brake Master Cylinders
1993ChevroletK1500 SuburbanN/ACentric Premium Brake Master Cylinders
1993ChevroletK2500N/ADisc Brake Caliper for 6 Lug configuration; Centric Premium Brake Master Cylinders
1993GMCC1500N/ACentric Premium Brake Master Cylinders
1993GMCC1500 SuburbanN/ACentric Premium Brake Master Cylinders
1993GMCC2500N/A11" Rear Drum; 7200lb GVW; Centric Premium Brake Master Cylinders
1993GMCC2500 SuburbanN/AVacuum Boost; Centric Premium Brake Master Cylinders
1993GMCK1500N/A10" Rear Drum; Centric Premium Brake Master Cylinders
1993GMCK1500 SuburbanN/ACentric Premium Brake Master Cylinders
1993GMCK2500N/A11" Rear Drum; 6 Lug; Centric Premium Brake Master Cylinders
1993GMCYukonN/ACentric Premium Brake Master Cylinders
1992ChevroletBlazerN/AFull Size; Centric Premium Brake Master Cylinders
1992ChevroletC1500N/ACentric Premium Brake Master Cylinders
1992ChevroletC1500 SuburbanN/ACentric Premium Brake Master Cylinders
1992ChevroletC2500N/A11" Rear Drum; 7200lb GVW; Centric Premium Brake Master Cylinders
1992ChevroletC2500 SuburbanN/AVacuum Boost; Centric Premium Brake Master Cylinders
1992ChevroletK1500N/A10" Rear Drum; 8 1/2" Rear End; Centric Premium Brake Master Cylinders
1992ChevroletK1500 SuburbanN/ACentric Premium Brake Master Cylinders
1992ChevroletK2500N/ADisc Brake Caliper for 6 Lug configuration; Centric Premium Brake Master Cylinders
1992GMCC1500N/ACentric Premium Brake Master Cylinders
1992GMCC1500 SuburbanN/ACentric Premium Brake Master Cylinders
1992GMCC2500N/A11" Rear Drum; 7200lb GVW; Centric Premium Brake Master Cylinders
1992GMCC2500 SuburbanN/AVacuum Boost; Centric Premium Brake Master Cylinders
1992GMCK1500N/A10" Rear Drum; Centric Premium Brake Master Cylinders
1992GMCK1500 SuburbanN/ACentric Premium Brake Master Cylinders
1992GMCK2500N/A11" Rear Drum; 6 Lug; Centric Premium Brake Master Cylinders
1992GMCYukonN/ACentric Premium Brake Master Cylinders
1991ChevroletC1500Standard Cab PickupN/AHvy Dty Ch; Centric Premium Brake Master Cylinders
1991ChevroletC1500Extended Cab PickupN/ACentric Premium Brake Master Cylinders
1991ChevroletC2500N/A11" Rear Drum; 7200lb GVW; Centric Premium Brake Master Cylinders
1991ChevroletK1500Standard Cab PickupN/A10" Rear Drum; 9 1/2" Rear End; Hvy Dty Ch; Centric Premium Brake Master Cylinders
1991ChevroletK1500Extended Cab PickupN/A10" Rear Drum; 9 1/2" Rear End; Std Ch; Centric Premium Brake Master Cylinders
1991ChevroletK2500N/ADisc Brake Caliper for 6 Lug configuration; Centric Premium Brake Master Cylinders
1991GMCC1500N/ADisc Brake Caliper for HD Chassis; Centric Premium Brake Master Cylinders
1991GMCC2500N/A11" Rear Drum; 7200lb GVW; Centric Premium Brake Master Cylinders
1991GMCK1500Standard Cab PickupN/A10" Rear Drum; Hvy Dty Ch; Centric Premium Brake Master Cylinders
1991GMCK1500Extended Cab PickupN/A10" Rear Drum; Std Ch; Centric Premium Brake Master Cylinders
1991GMCK2500N/A11" Rear Drum; 6 Lug; Centric Premium Brake Master Cylinders
1990ChevroletC1500Standard Cab PickupN/AHvy Dty Ch; Centric Premium Brake Master Cylinders
1990ChevroletC1500Extended Cab PickupN/ACentric Premium Brake Master Cylinders
1990ChevroletC2500N/A11" Rear Drum; 7200lb GVW; Centric Premium Brake Master Cylinders
1990ChevroletK1500Standard Cab PickupN/A10" Rear Drum; 9 1/2" Rear End; Hvy Dty Ch; Centric Premium Brake Master Cylinders
1990ChevroletK1500Extended Cab PickupN/A10" Rear Drum; 9 1/2" Rear End; Std Ch; Centric Premium Brake Master Cylinders
1990ChevroletK2500N/ADisc Brake Caliper for 6 Lug configuration; Centric Premium Brake Master Cylinders
1990GMCC1500N/ADisc Brake Caliper for HD Chassis; Centric Premium Brake Master Cylinders
1990GMCC2500N/A11" Rear Drum; 7200lb GVW; Centric Premium Brake Master Cylinders
1990GMCK1500Standard Cab PickupN/A10" Rear Drum; Hvy Dty Ch; Centric Premium Brake Master Cylinders
1990GMCK1500Extended Cab PickupN/A10" Rear Drum; Std Ch; Centric Premium Brake Master Cylinders
1990GMCK2500N/A11" Rear Drum; 6 Lug; Centric Premium Brake Master Cylinders
1989ChevroletC1500Standard Cab PickupN/AHeavy Duty Chassis; Centric Premium Brake Master Cylinders
1989ChevroletC1500Extended Cab PickupN/ACentric Premium Brake Master Cylinders
1989ChevroletC2500GASN/A11" Rear Drum; 7200lb GVW; JB5; Centric Premium Brake Master Cylinders
1989ChevroletK1500Standard Cab PickupN/A10" Rear Drum; 9 1/2" Rear End; Hvy Dty Ch; Centric Premium Brake Master Cylinders
1989ChevroletK1500Extended Cab PickupN/A10" Rear Drum; 9 1/2" Rear End; Std Ch; Centric Premium Brake Master Cylinders
1989ChevroletK2500N/ADisc Brake Caliper for 6 Lug configuration; Centric Premium Brake Master Cylinders
1989GMCC1500Standard Cab PickupN/ADisc Brake Caliper for HD Chassis; Centric Premium Brake Master Cylinders
1989GMCC1500Extended Cab PickupN/ACentric Premium Brake Master Cylinders
1989GMCC2500GASN/AFits rear drum brakes with 11" diameter.; Centric Premium Brake Master Cylinders
1989GMCK1500Standard Cab PickupN/A10" Rear Drum; Hvy Dty Ch; Centric Premium Brake Master Cylinders
1989GMCK1500Extended Cab PickupN/A10" Rear Drum; Std Ch; Centric Premium Brake Master Cylinders
1989GMCK25005.0LV8N/A11" Rear Drum; 6 Lug; Centric Premium Brake Master Cylinders
1989GMCK25004.3LV6N/A11" Rear Drum; 6 Lug; Centric Premium Brake Master Cylinders
1988ChevroletC1500Standard Cab PickupN/AHeavy Duty Chassis; Centric Premium Brake Master Cylinders
1988ChevroletC1500Extended Cab PickupN/ACentric Premium Brake Master Cylinders
1988ChevroletC2500GASN/ACentric Premium Brake Master Cylinders
1988ChevroletK1500Standard Cab PickupN/A10" Rear Drum; 9 1/2" Rear End; Hvy Dty Ch; Centric Premium Brake Master Cylinders
1988ChevroletK1500Extended Cab PickupN/A10" Rear Drum; 9 1/2" Rear End; Std Ch; Centric Premium Brake Master Cylinders
1988ChevroletK2500N/ACentric Premium Brake Master Cylinders
1988GMCC1500Standard Cab PickupN/ADisc Brake Caliper for HD Chassis; Centric Premium Brake Master Cylinders
1988GMCC1500Extended Cab PickupN/ACentric Premium Brake Master Cylinders
1988GMCC2500GASN/ACentric Premium Brake Master Cylinders
1988GMCK1500Standard Cab PickupN/A10" Rear Drum; Hvy Dty Ch; Centric Premium Brake Master Cylinders
1988GMCK1500Extended Cab PickupN/A10" Rear Drum; Std Ch; Centric Premium Brake Master Cylinders
1988GMCK2500GASN/ACentric 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.