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For 2-1/4" Neck



Verify style, type and design of cap before ordering. Many oil reservoirs require non vented caps, while fuel tanks and oil fill caps may require venting. Gasket material will depend on application, type of fluid and heat range. Be sure to order the type of cap you need for your application.

  • Cellulose Accopac CN-705 - Nitrile butadiene rubber binder for fluid resistance Generally suitable for oil, gasoline and water services. For applications up to 180°C (350°F).
  • Buna N: A synthetic rubber copolymer of acrylonitrile (ACN) and butadiene. Generally resistant to oil, fuel, and other chemicals. Temperatures from -40 °C to +108 °C . High sealing capabilities and heat resistance.
  • 60+/-5 Duro Buna N: A synthetic rubber copolymer of acrylonitrile (ACN) and butadiene. Generally resistant to oil, fuel, and other chemicals. Temperatures from -30 °F to +300 °F, hardness of Shore A 60. Use for high temperature and moderate pressure application.
  • Cork: Good resistance to oil, gasoline and common chemicals, good sealing characteristics. Use for low temperature and low pressure applications (gas caps, oil filler)

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