ACDelco Professional 18M2426 Brake Master Cylinder Assembly Fits select: 2003-2006 CHEVROLET SILVERADO, 2003-2006 GMC NEW SIERRA
ACDelco Professional 18M2426 Brake Master Cylinder Assembly Fits select: 2003-2006 CHEVROLET SILVERADO, 2003-2006 GMC NEW SIERRA
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ACDelco

ACDelco Professional 18M2426 Brake Master Cylinder Assembly Fits select: 2003-2006 CHEVROLET SILVERADO, 2003-2006 GMC NEW SIERRA

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Key item features

  • Reliable Performance: Meets the brake performance requirements of SAE J1153 and J1154 testing, ensuring reliability and quality.
  • Pressure Tested: Pressure tested to guarantee safe and confident braking.
  • Durable Materials: Constructed with cast iron and aluminum to avoid extra stress on the brake boosting mounting.
  • Precise Fit: Geometrical tolerance ensures the body and plastic reservoir match for a proper fit.
  • Brake Drag Prevention: Piston assembly and return spring help prevent brake drag, reducing premature brake pad wear.
  • Specific Dimensions: Bore Diameter of 0.937 inch, Primary Outlet Thread of 0.50 inch, and Secondary Outlet Thread of 0.5 inch.
  • Vehicle Compatibility: Fits 2003-2006 CHEVROLET SILVERADO, 2003-2006 GMC NEW SIERRA, and more. Use the fit widget to check compatibility with your vehicle.
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Current price is $145.20
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4.8 out of 5 stars
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Showing 1-3 of 5 reviews

Oct 3, 2025
CHAD
5 out of 5 stars review

Verified Purchase

Quick shipping and appears to be OEM.

Quick shipping and OEM quality. Nowhere on the master cylinder did it state that it was ACDelco, but the quality and fit seem very good. I don't think I did a great job of bench bleeding the cylinder prior to install, so no matter how many times I've bled the brakes, I still can't get a rock hard pedal- my fault though.

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Helpful?6SRIT469CP5347613379
Apr 3, 2026
Danofpalmdale
5 out of 5 stars review

Verified Purchase

Only use OEM, can't go wrong

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Jul 26, 2025
Lori
Walmart Associate
5 out of 5 stars review

Verified Purchase

price / value

great price for the money, oem ac delco

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Helpful?6SRIT469CP5347613379