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ACDelco Gold Brake Master Cylinder Pressure Switch
Gold
Pack of 1

ACDelco Gold Brake Master Cylinder Pressure Switch

GM Part #18038508

ACDelco Part #18M755

MSRP$332.72*

ACDelco Gold (Professional) Power Brake Booster Switches are a high quality alternative to Original Equipment (OE) parts.

  • Some ACDelco Gold parts may have formerly appeared as ACDelco Professional
  • Premium aftermarket replacement part
  • Manufactured to meet specifications for fit, form, and function for General Motors vehicles as well as most makes and models

Pack of 1

About this product

ACDelco Gold (Professional) Power Brake Booster Switches are a high quality alternative to Original Equipment (OE) parts. This switch warns of pressure loss or difference within the power brake booster, and activates a pump to provide flow to the booster master cylinder system. ACDelco Gold (Professional) parts are manufactured to meet your expectations for fit, form, and function, making them a smart choice for General Motors vehicles, as well as most makes and models, including special applications. These high-quality parts are backed by General Motors. Some ACDelco Gold parts may have formerly appeared as ACDelco Professional.

Warning WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

  • Some ACDelco Gold parts may have formerly appeared as ACDelco Professional
  • Premium aftermarket replacement part
  • Manufactured to meet specifications for fit, form, and function for General Motors vehicles as well as most makes and models

Product Specifications

ClassificationGold

24 Months/Unlimited Miles Limited Warranty for Parts (plus Labor if installed by a GM dealer)

Please visit our warranty page on Gmparts.com for full warranty details.

The following should be conducted by a qualified technician:

  • Check brake fluid level at every oil change. Replace fluid according to owner's manual recommendations.
  • Calipers and wheel cylinders should be checked every brake inspection and serviced or replaced as required.
  • Inspect the brake lines for rust, punctures, or visible leaks (You may be able to do this, but consult a qualified technician if necessary).
  • Check the thickness of your brake pads.
  • Inspection of the brake hoses for brittleness or cracking.
  • Inspection of brake lining and pads for wear or contamination by brake fluid or grease.
  • Inspection of wheel bearings and grease seals.
  • Parking brake adjustments (as needed).

Brake signs of wear include:

  • Brake warning light is on.
  • Fluid spots beneath the car, indicating there may be a leak within the cylinder.
  • Difficulty stopping the vehicle.
  • A low or sinking brake pedal.
  • Brake pedal pulsation (not to be confused with normal ABS operation).
  • Vehicle pulls to the left or right when brakes are applied.

ModelBody StyleTrimYear(s)
Caprice1985, 1986