Specifications
- Brand
- Cometic Gasket
- Part #
- C9438
- UPC
- 191070024741

Cometic Twin Cam Cyl Head & Base Dowel O-Ring, 10Pk
$14.71
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Cometic Twin Cam Cyl Head & Base Dowel O-Ring, 10Pk. Essential for sealing cylinder head and base dowel locations.
Key Features
- Fits many Harley-Davidson Twin Cam models from 1999-2017.
- Seals cylinder head and base dowel locations.
- Durable rubber construction resists heat and oil.
- Pack includes 10 O-rings for multiple applications or spares.
- Direct replacement for original equipment seals.
Product Details
When you're rebuilding the top end of your Twin Cam engine, getting the seals right is critical. These O-rings from Cometic are designed to seal the cylinder head and base dowel locations, preventing leaks and ensuring proper engine function. They are a direct replacement for the original equipment, fitting a wide range of Harley-Davidson models from the late 90s through 2017, including popular bikes like the Road King, Electra Glide, and Fat Boy.
This pack comes with ten O-rings, giving you enough for a complete job and a few spares just in case. They are made from a durable rubber compound that holds up to engine heat and oil, maintaining a tight seal over time. Proper installation of these O-rings is key to preventing oil or combustion leaks between the cylinder head and the crankcase or cylinder base.
Specifications
- Brand
- Cometic Gasket
- Manufacturer Part #
- C9438
- UPC
- 191070024741
Frequently Asked Questions
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Cometic Twin Cam Cyl Head & Base Dowel O-Ring, 10Pk



