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Start ShoppingCOMETIC C9363 MLS Evo Big Twin Inspection/Derby Cover Gasket - Durable, High-Performance Gasket
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Description
Upgrade your engine's reliability with COMETIC's precision-engineered inspection/derby cover gasket. Designed for Evo Big Twin applications, this MLS gasket delivers unmatched sealing performance and long-lasting durability to prevent leaks and maintain peak engine efficiency.
Key Features
- Multi-Layer Steel (MLS) Construction: Superior heat resistance and sealing integrity for demanding performance environments.
- 0.015" Thickness: Optimal compression for perfect fit and leak-proof sealing in tight engine spaces.
- Inspection/Derby Cover Specific Design: Engineered for precise fitment and easy installation on Evo Big Twin models.
- Lightweight 0.1 lbs: Reduces stress on engine components while maintaining structural integrity.
Why Choose This Product
Whether you're maintaining a high-performance motorcycle or restoring a classic, this gasket ensures reliable sealing to prevent oil leaks and maintain engine efficiency. Its MLS construction resists warping and degradation, while the precise fit reduces installation time and potential for improper sealing. Durable yet lightweight, it's an essential upgrade for riders who demand reliability without compromising performance.
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Upgrade your engine's reliability with COMETIC's precision-engineered inspection/derby cover gasket. Designed for Evo Big Twin applications, this MLS gasket delivers unmatched sealing performance and long-lasting durability to prevent leaks and maintain peak engine efficiency.
Key Features
- Multi-Layer Steel (MLS) Construction: Superior heat resistance and sealing integrity for demanding performance environments.
- 0.015" Thickness: Optimal compression for perfect fit and leak-proof sealing in tight engine spaces.
- Inspection/Derby Cover Specific Design: Engineered for precise fitment and easy installation on Evo Big Twin models.
- Lightweight 0.1 lbs: Reduces stress on engine components while maintaining structural integrity.
Why Choose This Product
Whether you're maintaining a high-performance motorcycle or restoring a classic, this gasket ensures reliable sealing to prevent oil leaks and maintain engine efficiency. Its MLS construction resists warping and degradation, while the precise fit reduces installation time and potential for improper sealing. Durable yet lightweight, it's an essential upgrade for riders who demand reliability without compromising performance.| SKU | GMCEB7D1CB |
|---|---|
| MPN | C9363 |
| Brand | Cometic |
| Category | Gaskets/Seals |
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Featured Review
| Make | Model | Years |
|---|---|---|
| Harley-Davidson | Evo Big Twin | 1986-1999 |
| Harley-Davidson | FXR/FXST/FLST | 1990-1999 |
Frequently Asked Questions
Yes, fits all Evo Big Twin 1986-1999 including FXST Softail models.
Multi-layer steel (MLS) construction for superior sealing and durability.
Recommended to use new or like-new bolts for proper torque and sealing.
MLS material resists heat and pressure better than stock paper/composite gasket.
Installation Guide
Difficulty
Easy
Est. Time
15 min
Tools Required
- Socket set (3/8" drive)
- Torque wrench
- Gasket scraper
- Harley torque specs
Pro Tips
- Clean all surfaces with brake cleaner
- Apply light oil to bolts
- Torque to Harley spec: 90-110 in-lbs
Common Mistakes to Avoid
- Not cleaning mating surfaces thoroughly
- Over-torquing bolts
- Reusing old bolts
Comparison vs Stock/OEM
Replaces paper stock gasket with MLS construction
Improvements
- Better heat resistance
- Improved sealing under high compression
- Longer service life
Considerations
- Slightly thicker (0.015") - verify clearance
Durability & Warranty
Expected Lifespan
Engine rebuild interval (20,000+ miles)
Warranty
Cometic 1-year unlimited mileage warranty
Maintenance
Inspect during oil changes; replace if weeping observed
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