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Start ShoppingCometic C9195 Evo Sportster EST Gasket Kit - Multi-Material Engine Sealing Solution
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Description
Upgrade your Sportster Evolution's engine performance with Cometic's C9195 EST Gasket Kit. This advanced multi-material solution delivers unmatched sealing reliability and long-term durability for high-performance riders.
Key Features
- Complete Engine Sealing System: Includes cylinder head gaskets, base gaskets, rocker box seals, intake/exhaust gaskets, and specialized O-rings for comprehensive coverage
- EST Multi-Material Design: Combines MLS-style metal composite with high-performance fiber materials for enhanced sealing under extreme conditions
- Harley-Davidson Compatibility: Precision-engineered for Sportster Evolution engines (1200cc/1250cc) with exact stack details for each component
- US Manufacturing: Made in the USA with premium materials for consistent quality and performance
Why Choose This Product
Cometic's EST technology outperforms conventional paper gaskets with its advanced multi-material construction, reducing leaks and engine damage risks. The comprehensive kit eliminates the need for multiple purchases, saving time and ensuring perfect fitment. Riders benefit from improved engine efficiency, reduced maintenance costs, and peace of mind with a gasket system built to withstand high-performance demands.
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Upgrade your Sportster Evolution's engine performance with Cometic's C9195 EST Gasket Kit. This advanced multi-material solution delivers unmatched sealing reliability and long-term durability for high-performance riders.
Key Features
- Complete Engine Sealing System: Includes cylinder head gaskets, base gaskets, rocker box seals, intake/exhaust gaskets, and specialized O-rings for comprehensive coverage
- EST Multi-Material Design: Combines MLS-style metal composite with high-performance fiber materials for enhanced sealing under extreme conditions
- Harley-Davidson Compatibility: Precision-engineered for Sportster Evolution engines (1200cc/1250cc) with exact stack details for each component
- US Manufacturing: Made in the USA with premium materials for consistent quality and performance
Why Choose This Product
Cometic's EST technology outperforms conventional paper gaskets with its advanced multi-material construction, reducing leaks and engine damage risks. The comprehensive kit eliminates the need for multiple purchases, saving time and ensuring perfect fitment. Riders benefit from improved engine efficiency, reduced maintenance costs, and peace of mind with a gasket system built to withstand high-performance demands.| SKU | GM54120C0E |
|---|---|
| MPN | C9195 |
| UPC/GTIN | 191070018047 |
| Brand | Cometic |
| Category | Gaskets/Seals |
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Featured Review
| Make | Model | Years |
|---|---|---|
| Harley-Davidson | Sportster 883 | 1986-2003 |
| Harley-Davidson | Sportster 1200 | 1986-2003 |
Frequently Asked Questions
It is designed for Evo Sportster engines (typically 883 and 1200 models in the late 1980s–early 2000s). Always confirm against Cometic’s current fitment chart by year, displacement, and sub‑model before ordering.
Yes. C9195 is sold by Cometic as an EST gasket kit, using high‑performance materials and construction aimed at better long‑term sealing than standard paper gaskets.
Most EST gaskets are designed for dry installation. Only use sealant where explicitly called for by the Harley service manual or Cometic’s instructions. Overuse of RTV can cause sealing and oiling problems.
EST kits are often used in performance applications, but you must verify that the included head gasket bore and thickness are correct for your pistons, compression ratio, and any cylinder/head machining work.
No. It is generally a top‑end/EST gasket kit and may not include lower‑end gaskets, seals, or primary/transmission gaskets. Check the contents list against the service procedure you plan to perform.
Installation Guide
Difficulty
Medium
Est. Time
3 hr 0 min
Tools Required
- Basic SAE socket and wrench set
- Torque wrench (inch‑lb and ft‑lb range appropriate for Harley top‑end specs)
- Allen/hex keys
- Soft scraper or plastic razor blade for gasket removal
- Brake cleaner or dedicated gasket surface cleaner
- Feeler gauges (for valve train checks where applicable)
- Service manual for torque values and tightening sequence
Pro Tips
- Lay out all gaskets and compare to removed OEM pieces to ensure correct placement before applying torque.
- Dry‑fit rocker boxes and heads to confirm gasket orientation; some gaskets are directional.
- Use a straightedge to quickly check head and cylinder deck flatness; significant warpage should be corrected before installing new gaskets.
- Follow Cometic’s and Harley‑Davidson’s published torque specs and patterns exactly; do not substitute generic values.
- Work on a cool, clean engine and keep lint and debris out of open oil passages.
Common Mistakes to Avoid
- Not thoroughly cleaning gasket surfaces before installation
- Reusing old fasteners that are stretched or damaged
- Ignoring factory torque sequence for cylinder heads and rocker boxes
- Using silicone or sealant where dry installation is specified, which can squeeze into oil passages
- Failing to re‑torque fasteners if required after initial heat cycles (refer to service manual and Cometic instructions)
Comparison vs Stock/OEM
Compared with typical OEM paper or composite gaskets on older Evo Sportsters, Cometic’s EST kit is designed to offer improved sealing, especially under heat and load, and better resistance to oil seepage over time.
Improvements
- Higher‑quality materials and construction than many OEM and generic aftermarket kits
- Improved long‑term sealing and reduced likelihood of oil leaks at heads, bases, and rocker boxes when installed correctly
- Suitable for stock and many performance applications where enhanced sealing is desired
Considerations
- Must be installed on clean, flat surfaces with proper torque procedures to realize the benefits
- Exact compression and quench effects depend on the head gasket thickness and bore; builders should confirm specs for performance engines
Durability & Warranty
Expected Lifespan
Designed for long‑term service comparable to or exceeding OEM in properly assembled engines; actual life depends heavily on engine condition, tune, and riding style.
Warranty
Typically covered by Cometic’s limited manufacturer warranty against defects in materials and workmanship; terms vary by distributor and region.
Maintenance
No direct maintenance once installed; periodically inspect engine for oil weeping around head, base, and rocker box joints during routine services.
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