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Start ShoppingCometic C9211 Evo Sportster Primary Gasket - MLS Multi-Layer Steel Gasket for Harley-Davidson Engines
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Description
Upgrade your Harley-Davidson Evolution Sportster's engine performance with Cometic's C9211 primary gasket. This high-quality MLS gasket ensures optimal sealing and durability for long-term reliability on the road.
Key Features
- Multi-Layer Steel (MLS) Construction: Provides superior sealing and heat resistance for demanding engine conditions.
- Silicone Beading: Enhances sealing integrity and prevents oil leaks around the primary cover.
- 0.015" Thickness: Precisely engineered for perfect fitment and compression without over-stressing engine components.
- Primary Cover Compatibility: Specifically designed for Evolution Sportster engines to ensure seamless installation.
Why Choose This Product
Cometic's C9211 gasket combines advanced materials with precision engineering to deliver unmatched sealing performance. The MLS construction resists compression set and thermal degradation, while the silicone beading creates a durable barrier against oil leaks. This gasket is ideal for riders who demand reliability and performance from their Harley-Davidson engines. Its lightweight design (0.1 lbs) simplifies installation without compromising durability. Whether you're maintaining your stock engine or modifying for enhanced power, this gasket ensures consistent performance and peace of mind on every ride.
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Upgrade your Harley-Davidson Evolution Sportster's engine performance with Cometic's C9211 primary gasket. This high-quality MLS gasket ensures optimal sealing and durability for long-term reliability on the road.
Key Features
- Multi-Layer Steel (MLS) Construction: Provides superior sealing and heat resistance for demanding engine conditions.
- Silicone Beading: Enhances sealing integrity and prevents oil leaks around the primary cover.
- 0.015" Thickness: Precisely engineered for perfect fitment and compression without over-stressing engine components.
- Primary Cover Compatibility: Specifically designed for Evolution Sportster engines to ensure seamless installation.
Why Choose This Product
Cometic's C9211 gasket combines advanced materials with precision engineering to deliver unmatched sealing performance. The MLS construction resists compression set and thermal degradation, while the silicone beading creates a durable barrier against oil leaks. This gasket is ideal for riders who demand reliability and performance from their Harley-Davidson engines. Its lightweight design (0.1 lbs) simplifies installation without compromising durability. Whether you're maintaining your stock engine or modifying for enhanced power, this gasket ensures consistent performance and peace of mind on every ride.
| SKU | GM114C80AA |
|---|---|
| MPN | C9211 |
| UPC/GTIN | 191070013011 |
| Brand | Cometic |
| Category | Gaskets/Seals |
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Featured Review
| Make | Model | Years |
|---|---|---|
| Harley-Davidson | Sportster (XL models with Evolution engine) | 1986-2006 |
| Harley-Davidson | Sportster 883/1100/1200 | 1986-1990 |
Frequently Asked Questions
Yes, compatible with all Evolution Sportster models 1986-2006.
0.015" MLS construction, similar to stock but more durable.
Recommended to inspect/replace primary cover O-ring (Harley PN 11105A) during install.
Yes, as long as stock Evolution primary dimensions are maintained.
Installation Guide
Difficulty
Easy
Est. Time
15 min
Tools Required
- socket set (1/4" drive)
- torque wrench
- gasket scraper
- primary lock tab tool
Pro Tips
- Clean all old gasket material with plastic scraper. Apply light oil to bolts. Torque to 108-144 in/lbs in crisscross pattern.
Common Mistakes to Avoid
- Not cleaning mating surfaces thoroughly
- Over-torquing primary bolts
Comparison vs Stock/OEM
Replaces stock paper-fiber gasket with multi-layer steel (MLS) construction
Improvements
- Superior sealing under high heat/pressure
- Resists blowouts
- Longer lifespan
Considerations
- Slightly stiffer; ensure surfaces are perfectly flat
Durability & Warranty
Expected Lifespan
Engine rebuild lifespan (50,000+ miles)
Warranty
1 year manufacturer defect warranty
Maintenance
Inspect during primary service intervals; no special maintenance required
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