Description
Engine case dowel o-rings are critical sealing components that prevent oil weeping and maintain precise case alignment—failure here compromises both performance and engine longevity. The COMETIC C9287 is engineered with premium, fuel-resistant elastomer that resists creep, cracking, and brittleness across extreme temperature and pressure cycles. When you’re building or rebuilding an engine where reliability cannot be compromised, this U.S.-manufactured o-ring delivers the consistency your project demands.
- Manufacturer: COMETIC Gasket
- Part Number: C9287
- Material: Fuel-resistant elastomer
- Resistance: Creep, crack, brittleness
- Origin: Made in U.S.A.
- Application: Engine case dowel
- Installation: Bolt-on replacement






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