Centric
C-TEK Standard Brake Master Cylinder

Centric 131.40029 Brake Master Cylinder

Brand Centric 131.40029
Reservoir Material Plastic
Mounting Hardware Included No
Mounting Hole Quantity 2
Master Cylinder Bore Diameter 0.875
Master Cylinder Bore Diameter 22.225
Brake Booster Included No
Master Cylinder Cap Included Yes
Master Cylinder Material Aluminum
Push Rod Included No
Reservoir Included Yes
Reservoir Type Single
Primary Outlet Thread Diameter 10.000
Secondary Outlet Thread Diameter 10.000
Bleeder Hoses Included No
Port Quantity 2
Mounting Bracket Included No
Secondary Outlet Thread Pitch 1.00
Primary Outlet Thread Pitch 1.00
Bore Type Straight
Bore Size 0.875
Bore Size 22.225
Secondary Outlet Thread Size M10-1.00
Primary Outlet Thread Size M10-1.00
Primary Outlet Flare Type Inverted
Secondary Outlet Flare Type Inverted
Primary Bore Diameter 0.875
Primary Bore Diameter 22.225
Reservoir Style Removable
Boss, Nipple or Port: Front, Top [cntrc] M10-1.00 inv
Boss, Nipple or Port: Rear, Bottom [cntrc] Nipple
Product line C-TEK Standard Brake Master Cylinder
Fits Acura and Honda · 11 vehicles

OE-style replacement. Standard brake master cylinder with a direct-fit design.

Aluminum body. Lightweight construction with a plastic reservoir and removable cap.

Straight bore design. Features a 7/8-inch bore and inverted outlets for clean hydraulic flow.

Cross-references Carlson 13204, Dorman - First Stop M390323 and Raybestos Brakes MC390323 for the same application. See all 18.

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Brake Master Cylinder for Civic and EL

Centric C-TEK Standard Brake Master Cylinder 131.40029 is a direct replacement hydraulic component for select Honda Civic and Acura EL applications. It combines an aluminum master cylinder body with a removable single plastic reservoir and included cap for a practical OE-style service part.

The C-TEK Standard Brake Master Cylinder line focuses on replacement coverage for import and domestic vehicles, using global manufacturing sources to balance fit, function, and value. This part number 131.40029 follows that approach with a 7/8 in. bore, dual M10-1.00 inverted flare outlets, and a straight bore design.

Key Features

  • Centric C-TEK Standard Brake Master Cylinder, part number 131.40029
  • Aluminum master cylinder construction
  • Single removable plastic reservoir with cap included
  • 7/8 in. bore diameter (22.225 mm)
  • Two outlet ports with M10-1.00 inverted flare threads
  • Two mounting holes
  • No booster, push rod, bleeder hoses, or mounting hardware included

Detailed Description

Built for brake hydraulic service, this master cylinder is specified with a straight 0.875 in. bore and a single reservoir layout. The primary and secondary outlets both use M10-1.00 inverted flare connections, which supports clean line routing on the listed Honda Civic and Acura EL applications. If you are replacing a worn or leaking master cylinder on a 1996-2000 Honda Civic or a 1997-2000 Acura EL, this Centric 131.40029 replacement provides the core hydraulic interface needed for brake system restoration.

This part cross-references Dorman - First Stop M390323 for the same application.

What It Helps Fix

  • Brake pedal that sinks under steady pressure
  • External brake fluid leakage at the master cylinder
  • Internal bypass that reduces hydraulic pressure
  • Soft or inconsistent brake pedal feel
  • Brake warning concerns tied to master cylinder wear

Installation Notes and Tips

Before installation, confirm bore size, outlet thread size, reservoir style, and port layout against the original unit. Bench bleed the master cylinder before connecting brake lines, then bleed the full brake system after installation. Inspect the brake booster push rod interface, line fittings, and fluid condition during service. This part is listed for 1996-2000 Honda Civic and 1997-2000 Acura EL applications.

Quality Assurance

Centric’s C-TEK Standard line is positioned as a value-focused replacement range for import and domestic brake and clutch service, using worldwide manufacturing sources to maintain consistent replacement coverage. Compatible vehicle coverage includes 1996-2000 Honda Civic and 1997-2000 Acura EL applications.

This part fits 11 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelBody TypeNotes
2000AcuraELC-TEK Standard Brake Master Cylinder
2000HondaCivicSiCoupeC-TEK Standard Brake Master Cylinder
2000HondaCivicEXCoupeC-TEK Standard Brake Master Cylinder
1999AcuraELC-TEK Standard Brake Master Cylinder
1999HondaCivicSiCoupeC-TEK Standard Brake Master Cylinder
1999HondaCivicEXCoupeC-TEK Standard Brake Master Cylinder
1998AcuraELC-TEK Standard Brake Master Cylinder
1998HondaCivicEXCoupeC-TEK Standard Brake Master Cylinder
1997AcuraELC-TEK Standard Brake Master Cylinder
1997HondaCivicEXCoupeC-TEK Standard Brake Master Cylinder
1996HondaCivicEXCoupeC-TEK Standard Brake Master Cylinder
Directly replaces or cross-references 18 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Carlson — 13204Dorman - First Stop — M390323Raybestos Brakes — MC39032318M77565-M3903232302-4002946100S04A1146100S04A1246100S04A13390323667228018039244230240029CM2125M54029M54029EM900999MC250650