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Start ShoppingCOMETIC C9124 Evo Sportster EST Gasket Kit - High-Performance Engine Sealing Solution
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Description
Ensure peak engine performance with Cometic's C9124 gasket kit, designed specifically for Evo Sportster EST engines. This complete sealing solution delivers unmatched durability and reliability for power sports enthusiasts.
Key Features
- Precision-Engineered Seals: Advanced manufacturing ensures perfect fit and leak-free operation for high-performance engines.
- Durable Material Construction: High-temperature resistant materials withstand extreme conditions without degradation.
- Complete Kit Inclusion: All necessary gaskets for comprehensive engine sealing, eliminating partial replacement needs.
- Easy Installation: Streamlined design reduces labor time while maintaining factory-level sealing integrity.
Why Choose This Product
Cometic's C9124 kit offers superior sealing technology that prevents oil leaks, maintains compression, and extends engine life. Engineered for power sports applications, this kit provides peace of mind with its long-lasting performance and compatibility with high-output engines. The precise fitment ensures optimal engine efficiency, making it an essential upgrade for serious riders.
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Ensure peak engine performance with Cometic's C9124 gasket kit, designed specifically for Evo Sportster EST engines. This complete sealing solution delivers unmatched durability and reliability for power sports enthusiasts.
Key Features
- Precision-Engineered Seals: Advanced manufacturing ensures perfect fit and leak-free operation for high-performance engines.
- Durable Material Construction: High-temperature resistant materials withstand extreme conditions without degradation.
- Complete Kit Inclusion: All necessary gaskets for comprehensive engine sealing, eliminating partial replacement needs.
- Easy Installation: Streamlined design reduces labor time while maintaining factory-level sealing integrity.
Why Choose This Product
Cometic's C9124 kit offers superior sealing technology that prevents oil leaks, maintains compression, and extends engine life. Engineered for power sports applications, this kit provides peace of mind with its long-lasting performance and compatibility with high-output engines. The precise fitment ensures optimal engine efficiency, making it an essential upgrade for serious riders.| SKU | GM2C5110D4 |
|---|---|
| MPN | C9124 |
| Brand | Cometic |
| Category | Gaskets/Seals |
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Featured Review
| Make | Model | Years |
|---|---|---|
| Harley-Davidson | Sportster Evolution (XL883, XL1100) | 1986-1990 |
| Harley-Davidson | Sportster XL1200 | 1986-1990 |
Frequently Asked Questions
No, C9124 is specifically for 1986-1990 Evolution Sportster EST models. 1991+ uses different part numbers.
Yes, features multi-layer steel construction for superior sealing and durability.
Designed for stock 3.875" bore. Contact Cometic for big bore applications.
Complete set: head gaskets, base gaskets, exhaust gaskets, valve cover gaskets, oil pan gasket, and more.
Installation Guide
Difficulty
Hard
Est. Time
4 hr 0 min
Tools Required
- torque wrench
- socket set
- gasket scraper
- feeler gauges
- engine hoist or stand
Pro Tips
- Use Cometic sealant on valley gasket if specified
- Follow Harley torque specs exactly
- Pre-soak rubber gaskets in engine oil
Common Mistakes to Avoid
- Not cleaning mating surfaces thoroughly
- Incorrect torque sequence on head bolts
- Over-torquing MLS head gasket
Comparison vs Stock/OEM
Superior sealing compared to paper OEM gaskets
Improvements
- MLS head gasket resists blowout
- Higher temperature tolerance
- Better for modified engines
Considerations
- Requires precise torque specs
- More expensive than OEM
Durability & Warranty
Expected Lifespan
Engine rebuild lifespan (100,000+ miles with proper install)
Warranty
1 year manufacturer defect warranty
Maintenance
Inspect during routine service; no special requirements
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