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Start ShoppingCometic C9338F5 MLS Derby Cover Gasket - High-Performance Motorcycle Gasket
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Description
Upgrade your Panhead or Shovelhead engine's sealing performance with Cometic's C9338F5 derby cover gasket. This high-quality MLS gasket delivers exceptional durability and leak prevention for classic motorcycle restoration projects.
Key Features
- Multi-Layer Steel (MLS) Construction: Provides superior sealing capability and long-lasting performance under high engine temperatures.
- 0.040in Thickness: Optimal compression for creating a perfect seal without over-tightening.
- Specifically Designed for: Panhead and Shovelhead engine configurations.
- Lightweight Design: Only 0.1 lbs yet maintains structural integrity and durability.
Why Choose This Product
Cometic's C9338F5 gasket is engineered for motorcycle enthusiasts who demand precision and reliability. The MLS construction resists compression set and maintains sealing integrity over time, preventing oil leaks and engine damage. Its precise fit for vintage Harley-Davidson engines makes it an essential upgrade for restoration projects. The lightweight yet durable design ensures easy installation without compromising performance, making it a trusted choice for riders seeking dependable engine sealing solutions.
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Upgrade your Panhead or Shovelhead engine's sealing performance with Cometic's C9338F5 derby cover gasket. This high-quality MLS gasket delivers exceptional durability and leak prevention for classic motorcycle restoration projects.
Key Features
- Multi-Layer Steel (MLS) Construction: Provides superior sealing capability and long-lasting performance under high engine temperatures.
- 0.040in Thickness: Optimal compression for creating a perfect seal without over-tightening.
- Specifically Designed for: Panhead and Shovelhead engine configurations.
- Lightweight Design: Only 0.1 lbs yet maintains structural integrity and durability.
Why Choose This Product
Cometic's C9338F5 gasket is engineered for motorcycle enthusiasts who demand precision and reliability. The MLS construction resists compression set and maintains sealing integrity over time, preventing oil leaks and engine damage. Its precise fit for vintage Harley-Davidson engines makes it an essential upgrade for restoration projects. The lightweight yet durable design ensures easy installation without compromising performance, making it a trusted choice for riders seeking dependable engine sealing solutions.
| SKU | GM7D749388 |
|---|---|
| MPN | C9338F5 |
| Brand | Cometic |
| Category | Gaskets/Seals |
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Featured Review
| Make | Model | Years |
|---|---|---|
| Harley-Davidson | Panhead | 1948-1984 |
| Harley-Davidson | Shovelhead | 1966-1984 |
Frequently Asked Questions
Yes, C9338F5 fits all 1966-1984 Shovelhead Big Twin models.
This is 0.040" thick MLS gasket. Stock cork gaskets are typically 0.030-0.040". Check your clearance.
Not required. MLS gaskets are designed to seal dry, but a thin film of high-temp sealant won't hurt.
8-10 ft-lbs. Do not over-tighten or you'll distort the cover.
Installation Guide
Difficulty
Easy
Est. Time
15 min
Tools Required
- Socket set
- Torque wrench
- Gasket scraper
Pro Tips
- Clean all old gasket material completely
- Torque to 8-10 ft-lbs
- Use a thin film of gasket sealant if desired
Common Mistakes to Avoid
- Not cleaning mating surfaces thoroughly
- Over-tightening derby cover bolts
Comparison vs Stock/OEM
Multi-layer steel vs. stock cork/paper composite
Improvements
- Superior sealing under high heat/pressure
- Re-usable multiple times
- Won't crush or burn out like cork
- More consistent compression
Considerations
- Slightly thicker than some stock gaskets
- More expensive than OEM cork
Durability & Warranty
Expected Lifespan
Re-usable 3-5 engine cycles or 10+ years
Warranty
Cometic 1-year warranty
Maintenance
Inspect for nicks/damage during service. Clean and re-use if undamaged.
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