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Start ShoppingCOMETIC C9215 Evo Sportster Seal - High-Performance Gasket for Reliable Engine Sealing
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Description
Ensure optimal engine performance with the COMETIC C9215 Evo Sportster Seal, a high-performance gasket designed to deliver exceptional sealing and durability for motorcycle engines. This critical component is engineered to prevent leaks and maintain peak power output, giving riders confidence on the track.
Key Features
- EPDM Material: Resists heat, oil, and aging for long-lasting performance in extreme conditions.
- Precision Engineering: Perfectly fits Evo Sportster engines to ensure a flawless seal and prevent compression loss.
- Leak-Proof Design: Advanced sealing technology eliminates oil leaks and maintains engine integrity under high stress.
- Easy Installation: Streamlined design reduces assembly time without compromising durability.
- High-Temperature Resistance: Maintains flexibility and strength in extreme operating environments.
Why Choose This Product
Upgrade your motorcycle's engine reliability with a gasket built for performance enthusiasts. The COMETIC C9215 offers unmatched durability, ensuring your Evo Sportster runs smoothly and efficiently. Its leak-proof design protects critical engine components, while the high-quality materials guarantee long-term use. Whether you're racing or riding, this seal delivers the power and reliability you need to stay ahead.
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Ensure optimal engine performance with the COMETIC C9215 Evo Sportster Seal, a high-performance gasket designed to deliver exceptional sealing and durability for motorcycle engines. This critical component is engineered to prevent leaks and maintain peak power output, giving riders confidence on the track.
Key Features
- EPDM Material: Resists heat, oil, and aging for long-lasting performance in extreme conditions.
- Precision Engineering: Perfectly fits Evo Sportster engines to ensure a flawless seal and prevent compression loss.
- Leak-Proof Design: Advanced sealing technology eliminates oil leaks and maintains engine integrity under high stress.
- Easy Installation: Streamlined design reduces assembly time without compromising durability.
- High-Temperature Resistance: Maintains flexibility and strength in extreme operating environments.
Why Choose This Product
Upgrade your motorcycle's engine reliability with a gasket built for performance enthusiasts. The COMETIC C9215 offers unmatched durability, ensuring your Evo Sportster runs smoothly and efficiently. Its leak-proof design protects critical engine components, while the high-quality materials guarantee long-term use. Whether you're racing or riding, this seal delivers the power and reliability you need to stay ahead.
| SKU | GM71AC6845 |
|---|---|
| MPN | C9215 |
| Brand | Cometic |
| Category | Gaskets/Seals |
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Frequently Asked Questions
Match the year, model, and engine (Evolution Sportster) in a current Cometic catalog or a major retailer’s fitment tool. Do not rely solely on the part name; always check the detailed fitment list from a live source.
Many Cometic gaskets are designed to seal dry, but some applications may call for a very light coat of non‑hardening sealant on specific areas. Follow the Harley-Davidson service manual and Cometic’s own guidance for this exact part number.
No. Engine seals and most gaskets should be considered single‑use. Reusing them often leads to leaks; always install a new seal when disturbing that joint.
Cometic is widely used in performance Harley builds, but suitability depends on the exact seal location, engine condition, and operating conditions. For extreme racing applications, confirm with Cometic or a performance builder that C9215 is appropriate.
Many engine or primary seals on Sportsters require draining the engine or primary oil to avoid spills and contamination. Check your factory service manual for the procedure related to the exact seal location covered by C9215.
Installation Guide
Difficulty
Medium
Est. Time
1 hr 0 min
Tools Required
- basic SAE socket and wrench set
- Torx or Allen bits (typical Harley hardware)
- torque wrench (inch‑lb and/or ft‑lb as required)
- gasket scraper or plastic razor scraper
- brake cleaner or solvent for surface cleaning
- rubber mallet (if applicable for cover removal)
- pick or seal puller (if this is a shaft/rotating seal)
Pro Tips
- Always refer to the factory service manual for torque values, bolt sequence, and orientation of the specific seal.
- Dry‑fit the new seal or gasket first to verify hole alignment and orientation before applying any sealant or tightening bolts.
- Use a proper seal driver or a socket that matches the outer diameter of the seal to press it in evenly; never hammer directly on the seal.
- Inspect the shaft or mating surface for grooves or burrs; polish lightly with fine emery cloth if needed so you don’t cut the new seal.
- After installation, run the engine briefly and inspect for seepage before a long ride.
Common Mistakes to Avoid
- Not fully cleaning old gasket material and sealant from mating surfaces
- Reusing old, crushed or damaged O‑rings and seals instead of replacing as a set
- Over‑tightening cover or case bolts and warping the sealing surface
- Installing a lip seal backward (lip must face the fluid/oil side)
- Failing to lightly oil the seal lip before installation, causing premature wear or tearing
Comparison vs Stock/OEM
Cometic seals and gaskets are generally engineered as high‑quality replacements for OEM components, often with upgraded materials and tighter tolerances.
Improvements
- Typically improved sealing materials versus older OEM paper or basic rubber designs
- Better resistance to heat, oil, and fuel common to Harley Evolution engines
- Popular choice for performance and rebuild shops due to consistency and reliability
Considerations
- Fit and performance still depend on proper installation and clean, flat mating surfaces.
- Always verify that C9215 is the correct direct replacement for the specific OEM part number on your Sportster before ordering.
Durability & Warranty
Expected Lifespan
Comparable to or better than OEM when installed correctly and used with clean, quality fluids; often lasts many years of normal use.
Warranty
Cometic typically offers a limited manufacturer warranty against defects in materials and workmanship; specific terms should be confirmed from the current Cometic or retailer documentation.
Maintenance
Inspect for leaks during regular oil changes; no direct maintenance of the seal itself, but maintaining correct fluid levels and avoiding overheating helps maximize life.
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