HomeRaybestos MC39324 Brake Master Cylinder
Part #: MC39324

Raybestos MC39324 Brake Master Cylinder

Element3; New, N/A
72 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Element3; New, N/A
Fitment: Chevrolet and GMC, R2500 Suburban, V2500 Suburban, R2500, R20, R20 Suburban, V20 Suburban, V20, V2500, C20, C20 Suburban, K20, K20 Suburban, C2500, C2500 Suburban, K2500, and K2500 Suburban
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Reliable Brake Master Cylinder for Chevrolet and GMC Trucks

The Raybestos Element3; New Brake Master Cylinder MC39324 is engineered to restore precise brake hydraulics for Chevrolet and GMC heavy-duty trucks. Designed specifically for models like the C20, K20, and R2500 Suburban series, this master cylinder ensures consistent brake fluid pressure and reliable stopping power.

  • Constructed from durable iron for long-lasting performance
  • Features a 1.250-inch bore size for optimal hydraulic control
  • Includes two mounting holes with a 0.433-inch diameter for secure installation
  • Equipped with two ports: primary port thread 9/16"-18 and secondary port thread 1/2"-20
  • Compatible with Chevrolet and GMC C20, K20, R20, V20, and their Suburban and 2500 series trucks

About the Raybestos Element3; New Product Line

The Element3; New line from Raybestos focuses on delivering reliable brake hydraulics components that meet or exceed OEM specifications. This brake master cylinder MC39324 is part of that line, offering a robust iron construction and precise bore sizing to maintain consistent brake fluid pressure. The Element3; New series is designed to provide dependable performance for heavy-duty Chevrolet and GMC trucks requiring durable brake system parts.

Detailed Product Description

This brake master cylinder MC39324 is crafted from iron, providing strength and resistance to wear under demanding conditions. The 1.250-inch bore size is calibrated to deliver the correct hydraulic pressure needed for effective braking. With two mounting holes sized at 0.433 inches in diameter, installation is secure and stable. The master cylinder features two ports with specific thread sizes—9/16"-18 for the primary port and 1/2"-20 for the secondary port—ensuring compatibility with the brake lines on Chevrolet and GMC C20, K20, R20, V20, and their Suburban and 2500 variants.

Common Applications and Issues Addressed

  • Restores brake fluid pressure in Chevrolet and GMC C20 and K20 trucks
  • Replaces worn or leaking master cylinders causing brake pedal sponginess
  • Solves brake fluid leaks from damaged or corroded master cylinders
  • Improves brake system responsiveness in R20 and V20 Suburban models
  • Addresses master cylinder failure symptoms in 2500 series heavy-duty trucks

Installation Notes and Tips

  • Ensure compatibility with your specific Chevrolet or GMC model before installation
  • Bleed the brake system thoroughly after installation to remove air pockets
  • Check mounting hole alignment and port thread sizes for proper fit
  • Use appropriate brake fluid as specified by the vehicle manufacturer
  • Inspect brake lines and fittings for wear or damage during replacement

Quality Assurance and Warranty

Raybestos Element3; New brake master cylinders are manufactured to meet OEM standards for durability and performance. The MC39324 part number undergoes rigorous quality control to ensure reliable operation in Chevrolet and GMC heavy-duty trucks. Warranty coverage details should be confirmed with the product documentation or supplier.

BrandRaybestos
Part NumberMC39324
PositionElement3; New, N/A
Bore Size1.250
Master Cylinder MaterialIron
Mounting Hole Diameter0.433
Mounting Hole Quantity2
Number of Ports2
Primary Port Thread A9/16"-18
Secondary Port Thread A1/2"-20

This part fits 72 vehicles. Search below:

YearMakeModelPositionNotes
1991ChevroletR2500 SuburbanN/ABore 1-1/4in; with 13 IN Brakes; Element3; New
1991ChevroletV2500 SuburbanN/Aw/ 13" Rear Brakes; Bore 1-1/4in; Element3; New
1991GMCR2500 SuburbanN/AElement3; New
1990ChevroletR2500 SuburbanN/ABore 1-1/4in; with 13 IN Brakes; Element3; New
1990ChevroletV2500 SuburbanN/Aw/ 13" Rear Brakes; Bore 1-1/4in; Element3; New
1990GMCR2500 SuburbanN/AElement3; New
1989ChevroletR2500N/AElement3; New
1989ChevroletR2500 SuburbanN/ABore 1-1/4in; with 13 IN Brakes; Element3; New
1989ChevroletV2500 SuburbanN/Aw/ 13" Rear Brakes; Bore 1-1/4in; Element3; New
1989GMCR2500N/AElement3; New
1989GMCR2500 SuburbanN/AElement3; New
1988ChevroletR20N/AElement3; New
1988ChevroletR20 SuburbanN/ABore 1-1/4in; with 13 IN Brakes; Element3; New
1988ChevroletV20 SuburbanN/Aw/ 13" Rear Brakes; Bore 1-1/4in; Element3; New
1988GMCR2500N/AElement3; New
1988GMCR2500 SuburbanN/AElement3; New
1987ChevroletR20N/AFits 13 inch drum brakes.; Element3; New
1987ChevroletR20 SuburbanN/ABore 1-1/4in; with 13 IN Brakes; Element3; New
1987ChevroletV20N/Aw/ 13" Rear Brakes; Element3; New
1987ChevroletV20 SuburbanN/Aw/ 13" Rear Brakes; Bore 1-1/4in; Element3; New
1987GMCR2500N/AFits 13 inch drum brakes.; Element3; New
1987GMCR2500 SuburbanN/AFits 13 inch drum brakes.; Element3; New
1987GMCV2500N/AFits 13 inch drum brakes.; Element3; New
1987GMCV2500 SuburbanN/AFits 13 inch drum brakes.; Element3; New
1986ChevroletC20N/ABore 1-1/4in; with 13 IN Brakes; Element3; New
1986ChevroletC20 SuburbanN/ABore 1-1/4in; with 13 IN Brakes; Element3; New
1986ChevroletK20N/AFits 13 inch drum brakes.; Element3; New
1986ChevroletK20 SuburbanN/ABore 1-1/4in; with 13 IN Brakes; Element3; New
1986GMCC2500N/AFits 13 inch drum brakes.; Element3; New
1986GMCC2500 SuburbanN/AFits 13 inch drum brakes.; Element3; New
1986GMCK2500N/AFits 13 inch drum brakes.; Element3; New
1986GMCK2500 SuburbanN/AFits 13 inch drum brakes.; Element3; New
1985ChevroletC20N/ABore 1-1/4in; with 13 IN Brakes; Element3; New
1985ChevroletC20 SuburbanN/ABore 1-1/4in; with 13 IN Brakes; Element3; New
1985ChevroletK20N/AFits 13 inch drum brakes.; Element3; New
1985ChevroletK20 SuburbanN/ABore 1-1/4in; with 13 IN Brakes; Element3; New
1985GMCC2500N/AFits 13 inch drum brakes.; Element3; New
1985GMCC2500 SuburbanN/AFits 13 inch drum brakes.; Element3; New
1985GMCK2500N/AFits 13 inch drum brakes.; Element3; New
1985GMCK2500 SuburbanN/AFits 13 inch drum brakes.; Element3; New
1984ChevroletC20N/ABore 1-1/4in; with 13 IN Brakes; Element3; New
1984ChevroletC20 SuburbanN/ABore 1-1/4in; with 13 IN Brakes; Element3; New
1984ChevroletK20N/AFits 13 inch drum brakes.; Element3; New
1984ChevroletK20 SuburbanN/ABore 1-1/4in; with 13 IN Brakes; Element3; New
1984GMCC2500N/AFits 13 inch drum brakes.; Element3; New
1984GMCC2500 SuburbanN/AFits 13 inch drum brakes.; Element3; New
1984GMCK2500N/AFits 13 inch drum brakes.; Element3; New
1984GMCK2500 SuburbanN/AFits 13 inch drum brakes.; Element3; New
1983ChevroletC20N/ABore 1-1/4in; with 13 IN Brakes; Element3; New
1983ChevroletC20 SuburbanN/ABore 1-1/4in; with 13 IN Brakes; Element3; New
1983ChevroletK20N/AFits 13 inch drum brakes.; Element3; New
1983ChevroletK20 SuburbanN/ABore 1-1/4in; with 13 IN Brakes; Element3; New
1983GMCC2500N/AFits 13 inch drum brakes.; Element3; New
1983GMCC2500 SuburbanN/AFits 13 inch drum brakes.; Element3; New
1983GMCK2500N/AFits 13 inch drum brakes.; Element3; New
1983GMCK2500 SuburbanN/AFits 13 inch drum brakes.; Element3; New
1982ChevroletC20N/ABore 1-1/4in; with 13 IN Brakes; Element3; New
1982ChevroletC20 SuburbanN/ABore 1-1/4in; with 13 IN Brakes; Element3; New
1982ChevroletK20N/AFits 13 inch drum brakes.; Element3; New
1982ChevroletK20 SuburbanN/ABore 1-1/4in; with 13 IN Brakes; Element3; New
1982GMCC2500N/AFits 13 inch drum brakes.; Element3; New
1982GMCC2500 SuburbanN/AFits 13 inch drum brakes.; Element3; New
1982GMCK2500N/AFits 13 inch drum brakes.; Element3; New
1982GMCK2500 SuburbanN/AFits 13 inch drum brakes.; Element3; New
1981ChevroletC20N/ABore 1-1/4in; with 13 IN Brakes; Element3; New
1981ChevroletC20 SuburbanN/ABore 1-1/4in; with 13 IN Brakes; Element3; New
1981ChevroletK20N/AFits 13 inch drum brakes.; Element3; New
1981ChevroletK20 SuburbanN/ABore 1-1/4in; with 13 IN Brakes; Element3; New
1981GMCC2500N/AFits 13 inch drum brakes.; Element3; New
1981GMCC2500 SuburbanN/AFits 13 inch drum brakes.; Element3; New
1981GMCK2500N/AFits 13 inch drum brakes.; Element3; New
1981GMCK2500 SuburbanN/AFits 13 inch drum brakes.; Element3; New

* 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:

10-1872118721198913-1872130.66013131.660131800806818010748180147052718723932460212366-93-940783-4401383-44013CM1462CM1733E-8209E104464EX0150F104464M2423M39324M86013M86013EMC104464MC439MCA39324NM1872NMC11308R104464R418209SMC104464

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