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GMC Distributor Cap

Dorman Distributor Cap O-Ring

Part Number: RB90441

  • Features
  • Description
  • Dorman Help
  • Direct Fit
  • Set of 4
  • Same day - 1 business day
  • Cancer and/or Reproductive Harm. Please Read Proposition 65 Warning In The Description.
  • In Stock


Affordable, directly compatible and built to last, Dorman’s OE replacement distributor O-rings stand out as the smart option. Since 1918, Dorman Products has supplied the automotive aftermarket with high-quality replacement parts, hardware and fasteners.

  • Simple to install
  • Engineered with high-quality materials
  • Delivers leak-free seal
  • Qualified by Dorman’s strenuous testing procedures
  • Withstands wear over time

Warning Symbol WARNING: This product can expose you to chemicals including Lead, which is known to the State of California to cause cancer and Phthalates which are known to cause birth defects or other reproductive harm. For more information go to

  • Price:
    USD 13.47
  • Quantity:

AC Delco Distributor Cap

Part Number: ACD323R

  • Features
  • Description
  • AC Delco Professional
  • Black
  • New
  • Direct Fit
  • Sold individually
  • OE Replacement
  • 1-2 Business Days
  • Screw-down
  • Female/Socket
  • Aluminum
  • 12338669
  • In Stock


The factory-original fit and lasting function of AC Delco’s new OE replacement distributor caps provide the perfect repair without breaking your budget. Established in 1899, AC Delco manufactures original GM parts and premium OE replacement parts for other brands in the automotive aftermarket.

  • High-grade design delivers extended lifespan
  • Carefully formed to suit your specific vehicle
  • Engineered to exact OE standards
  • Has undergone stringent evaluation to guarantee proper fit and performance
  • Price:
    USD 13.82
  • Quantity: