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Start ShoppingCometic C9238 Twin Cam EST Gasket Kit - MLS Head Gasket Kit for High-Performance Engines
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Description
Elevate engine reliability with Cometic's premium Twin Cam EST gasket kit. Engineered for high-performance motorcycles, this MLS gasket set delivers unmatched sealing integrity and long-term durability to prevent leaks and maintain peak power output.
Key Features
- Multi-Layer Steel (MLS) Head Gasket: Reinforced construction resists warping and maintains compression for high-output engines.
- One-Piece Full-Length Steel Oil Pan Gasket: Ensures complete sealing and prevents oil leaks under extreme operating conditions.
- Steel Core Intake Manifold Gasket: Provides durable, heat-resistant sealing for optimal airflow and engine efficiency.
- Exact Fit for 4.000" Bore: Precision-engineered for Twin Cam EST engines with 0.040" compressed thickness for proper sealing.
- Lightweight Design: Only 0.5 lbs ensures easy installation without compromising structural integrity.
Why Choose This Product
Cometic's C9238 kit combines aerospace-grade materials with motorcycle-specific engineering to deliver superior sealing performance. The MLS head gasket maintains compression in high-RPM applications, while the steel oil pan gasket prevents costly leaks during long rides. Riders benefit from enhanced engine longevity, reduced maintenance, and consistent power delivery. Perfect for street bikes, track days, and high-performance modifications where reliability is critical.
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Elevate engine reliability with Cometic's premium Twin Cam EST gasket kit. Engineered for high-performance motorcycles, this MLS gasket set delivers unmatched sealing integrity and long-term durability to prevent leaks and maintain peak power output.
Key Features
- Multi-Layer Steel (MLS) Head Gasket: Reinforced construction resists warping and maintains compression for high-output engines.
- One-Piece Full-Length Steel Oil Pan Gasket: Ensures complete sealing and prevents oil leaks under extreme operating conditions.
- Steel Core Intake Manifold Gasket: Provides durable, heat-resistant sealing for optimal airflow and engine efficiency.
- Exact Fit for 4.000" Bore: Precision-engineered for Twin Cam EST engines with 0.040" compressed thickness for proper sealing.
- Lightweight Design: Only 0.5 lbs ensures easy installation without compromising structural integrity.
Why Choose This Product
Cometic's C9238 kit combines aerospace-grade materials with motorcycle-specific engineering to deliver superior sealing performance. The MLS head gasket maintains compression in high-RPM applications, while the steel oil pan gasket prevents costly leaks during long rides. Riders benefit from enhanced engine longevity, reduced maintenance, and consistent power delivery. Perfect for street bikes, track days, and high-performance modifications where reliability is critical.| SKU | GMB133A336 |
|---|---|
| MPN | C9238 |
| Brand | Cometic |
| Category | Gaskets/Seals |
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Featured Review
| Make | Model | Years |
|---|---|---|
| Harley-Davidson | Twin Cam 96/103 EST Models | 2007-2017 |
Frequently Asked Questions
Fits 2007-2017 Twin Cam 96/103 EST models including Touring, Softail, and Dyna. Confirm your bore size is 4.000 in.
Yes, includes head, base, exhaust, intake, and oil pan gaskets for full top-end service.
Cometic recommends their MLS head gasket sealer on certain gaskets; check instructions.
Designed for stock 4.000 in. bore; verify compatibility with oversized bores.
Installation Guide
Difficulty
Medium
Est. Time
2 hr 0 min
Tools Required
- torque wrench
- socket set
- gasket scraper
- engine stand (recommended)
Pro Tips
- Use Cometic sealant on gaskets where specified
- Torque in stages following Harley service manual
Common Mistakes to Avoid
- Not cleaning mating surfaces thoroughly
- Incorrect torque sequence on head bolts
Comparison vs Stock/OEM
Multi-layer steel construction vs. OEM composite; superior sealing under high compression
Improvements
- Better heat resistance
- Improved durability for high-performance builds
- No compression loss over time
Considerations
- Higher cost than OEM
- Requires precise torque specs
Durability & Warranty
Expected Lifespan
Engine rebuild lifespan (50,000+ miles with proper install)
Warranty
1 year limited manufacturer warranty
Maintenance
Inspect during routine valve checks; no specific maintenance needed
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