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Start ShoppingCometic C9184 Twin Cam EST MLS Head Gasket Kit - High-Performance Gasket Kit for Powersports Engines
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Description
Ensure optimal engine performance and longevity with Cometic's C9184 Twin Cam EST Gasket Kit. Engineered for high-performance powersports applications, this comprehensive kit delivers unmatched sealing reliability and durability for demanding riding conditions.
Key Features
- Multi-Layer Steel (MLS) Head Gasket: Constructed from high-quality MLS material for superior heat resistance and sealing integrity under extreme engine pressures.
- One-Piece Full-Length Steel Oil Pan Gasket: Precision-engineered for perfect fit and leak prevention, ensuring reliable oil containment and engine protection.
- Die-Cut Gaskets with Advanced Materials: Features Aramid fiber-reinforced neoprene and Permatex ultra gray RTV silicone for enhanced thermal stability and sealing performance.
- Exact Fit for Twin Cam EST Engines: Designed specifically for 4.000" bore applications with 0.040" thickness for optimal compression and sealing efficiency.
Why Choose This Product
Cometic's C9184 kit combines cutting-edge materials with precision engineering to deliver exceptional sealing performance. The MLS head gasket resists warping and maintains integrity under high temperatures, while the reinforced oil pan gasket prevents costly leaks. Perfect for riders demanding maximum reliability, this kit ensures peak engine efficiency and long-term durability in high-performance powersports applications.
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Ensure optimal engine performance and longevity with Cometic's C9184 Twin Cam EST Gasket Kit. Engineered for high-performance powersports applications, this comprehensive kit delivers unmatched sealing reliability and durability for demanding riding conditions.
Key Features
- Multi-Layer Steel (MLS) Head Gasket: Constructed from high-quality MLS material for superior heat resistance and sealing integrity under extreme engine pressures.
- One-Piece Full-Length Steel Oil Pan Gasket: Precision-engineered for perfect fit and leak prevention, ensuring reliable oil containment and engine protection.
- Die-Cut Gaskets with Advanced Materials: Features Aramid fiber-reinforced neoprene and Permatex ultra gray RTV silicone for enhanced thermal stability and sealing performance.
- Exact Fit for Twin Cam EST Engines: Designed specifically for 4.000" bore applications with 0.040" thickness for optimal compression and sealing efficiency.
Why Choose This Product
Cometic's C9184 kit combines cutting-edge materials with precision engineering to deliver exceptional sealing performance. The MLS head gasket resists warping and maintains integrity under high temperatures, while the reinforced oil pan gasket prevents costly leaks. Perfect for riders demanding maximum reliability, this kit ensures peak engine efficiency and long-term durability in high-performance powersports applications.| SKU | GM89AF5F1F |
|---|---|
| MPN | C9184 |
| 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 (FLHT, FLHR), Softail (FXST, FLST), and Dyna (FXD) with Electronic Sequential Timing ignition.
Yes, includes head gaskets, base gaskets, oil pan gasket, exhaust gaskets, and all necessary seals for top-end service.
Designed for stock 4.000" bore; Cometic offers custom kits for larger bores—check their bore chart.
0.040 inches standard; contact Cometic for thinner/thicker options.
Installation Guide
Difficulty
Medium
Est. Time
2 hr 0 min
Tools Required
- torque wrench
- socket set
- gasket scraper
- RTV applicator
- engine hoist (recommended for full teardown)
Pro Tips
- Follow Harley torque specs exactly (typically 14-18 ft-lbs initial, then 3-step process)
- Use Cometic's included instructions for MLS head gasket orientation
- Apply thin bead of RTV only where specified
Common Mistakes to Avoid
- Not cleaning mating surfaces thoroughly
- Incorrect torque sequence on head bolts
- Over-applying RTV silicone
Comparison vs Stock/OEM
Multi-layer steel construction vs. stock composite/paper gaskets
Improvements
- Superior sealing under high heat/pressure
- Better durability for high-compression or boosted builds
- No compression loss over time
Considerations
- Requires precise torque specs; not reusable
Durability & Warranty
Expected Lifespan
Engine rebuild lifespan (50,000+ miles with proper install)
Warranty
1 year limited manufacturer warranty against defects
Maintenance
Inspect during routine top-end services; no specific maintenance needed
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