Dorman M39630 Brake Master Cylinder

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Fitment Info

  • Dorman M39630 Brake Master Cylinder
  • Fits: Chevrolet G30, Chevrolet P20, Chevrolet P30, GMC G3500, GMC P2500, GMC P3500 (check fitment chart for compatibility)
  • Confirm fitment with our fitment and interchange chart below

Fitment Table

✅ Compatible with 58 vehicles
Year Make Model Fuel Type Position Notes
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Product Description

This brake master cylinder is precision-engineered to match the design, function, and performance of the original master cylinder on specific vehicle years, makes and models. It is made of new, high-quality materials for a safe, durable replacement.

Product Attributes

  • 1-1/4 in & 40mm
  • Aluminum
  • No
  • 2
  • Master Cylinder
  • 1/2-20
  • Yes
  • 9/16-18
  • No

Interchange Part Numbers

Know the factory part number you are replacing? If it's listed below, this part will be a perfect match. If you can't find yours listed, try searching our website for your part number.