Dorman offers a comprehensive line of coolant bypass caps for almost any automotive repair job. All Dorman coolant bypass caps are constructed of high-quality materials for long-lasting durability.

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Product Review

Dorman offers a comprehensive line of coolant bypass caps for almost any automotive repair job. All Dorman coolant bypass caps are constructed of high-quality materials for long-lasting durability.

  • Engineered from durable, heat- resistant vinyl
  • Provides a tight fit to prevent vacuum leaks
  • Excellent for capping lines and hoses while testing carburetors, emission control systems, vacuum lines, and more
  • Conveniently packaged in a variety of sizes, assortments, and quantities
  • Support available - every Dorman part is backed by Dorman's ASE Blue Seal Certified technical support team

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