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Start ShoppingCometic C9312F Sportster Starter Gasket - High-Performance Engine Gasket for Harley-Davidson XL Series
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Description
Ensure optimal engine performance with Cometic's precision-engineered C9312F starter gasket, designed specifically for Harley-Davidson Sportster XL series motorcycles. This high-performance gasket delivers reliable sealing and durability in critical starter system applications.
Key Features
- Part Number C9312F: Direct replacement for Harley-Davidson Sportster XL models
- Paper/Fiber Construction: Lightweight yet durable material for long-lasting performance
- Thin Profile Design: Fits snugly in tight engine compartments without compromising sealing integrity
- Single-Use Only: Ensures proper installation and prevents cross-contamination
- Engine/Starting System Compatibility: Specifically engineered for starter motor applications
Why Choose This Product
Cometic's C9312F gasket offers unmatched reliability for motorcycle enthusiasts. Its specialized paper/fiber composition resists compression and heat, maintaining sealing integrity under demanding conditions. The thin profile design simplifies installation while ensuring a perfect fit for Sportster engines. As a single-use component, it eliminates the risk of reusing worn gaskets, promoting long-term engine health. Trusted by mechanics and riders alike, this gasket delivers the performance and durability needed for reliable motorcycle operation.
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Ensure optimal engine performance with Cometic's precision-engineered C9312F starter gasket, designed specifically for Harley-Davidson Sportster XL series motorcycles. This high-performance gasket delivers reliable sealing and durability in critical starter system applications.
Key Features
- Part Number C9312F: Direct replacement for Harley-Davidson Sportster XL models
- Paper/Fiber Construction: Lightweight yet durable material for long-lasting performance
- Thin Profile Design: Fits snugly in tight engine compartments without compromising sealing integrity
- Single-Use Only: Ensures proper installation and prevents cross-contamination
- Engine/Starting System Compatibility: Specifically engineered for starter motor applications
Why Choose This Product
Cometic's C9312F gasket offers unmatched reliability for motorcycle enthusiasts. Its specialized paper/fiber composition resists compression and heat, maintaining sealing integrity under demanding conditions. The thin profile design simplifies installation while ensuring a perfect fit for Sportster engines. As a single-use component, it eliminates the risk of reusing worn gaskets, promoting long-term engine health. Trusted by mechanics and riders alike, this gasket delivers the performance and durability needed for reliable motorcycle operation.| SKU | GM70689DCE |
|---|---|
| MPN | C9312F |
| Brand | Cometic |
| Category | Gaskets/Seals |
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Frequently Asked Questions
No. C9312F is the gasket only; reuse your existing hardware or replace bolts separately if needed.
No. Like most paper/fiber engine gaskets, it is intended for one‑time use and should be replaced once disturbed.
Follow the Harley‑Davidson service manual for your specific model. In most cases it is installed dry on clean surfaces, or with only a very light film of sealant in specific areas if the manual calls for it.
It is designed for specific Harley‑Davidson Sportster (XL) applications only. Always confirm by cross‑checking Cometic part number C9312F with a current fitment chart or your VIN before ordering.
No. It is an aftermarket replacement gasket manufactured by Cometic, designed to meet or exceed OEM sealing performance for the specified Sportster applications.
Installation Guide
Difficulty
Easy
Est. Time
30 min
Tools Required
- Basic SAE socket set
- Ratchet
- Torque wrench (inch‑lb or ft‑lb appropriate for starter/cover bolts)
- Gasket scraper or plastic razor blade
- Brake cleaner or degreaser
- Clean shop rags
Pro Tips
- Clean both mating surfaces thoroughly until they are oil‑free and smooth before installing the new gasket
- Use a plastic scraper instead of metal to avoid gouging aluminum surfaces
- Lightly snug all bolts in a criss‑cross pattern, then torque to spec from a factory service manual
- Dry‑fit the gasket to confirm orientation and hole alignment before applying any sealant (if used at all)
- If any sealant is recommended by your service manual, apply a very thin, even film only where specified
Common Mistakes to Avoid
- Re‑using the old gasket instead of installing the new one
- Installing on dirty or oily mating surfaces, causing leaks
- Over‑tightening bolts and distorting or crushing the gasket
- Using excessive RTV or sealant that squeezes into the starter/engine area
Comparison vs Stock/OEM
Designed as an aftermarket replacement for the OEM Harley‑Davidson Sportster starter‑area gasket, built to meet or exceed stock sealing performance.
Improvements
- High‑quality Cometic construction and material consistency
- Precisely cut bolt and passage holes for proper alignment on Sportster cases
- Reputable brand commonly used in performance and rebuild applications
Considerations
- Must be matched to the correct year and Sportster model to ensure OEM‑equivalent fit
- Like OEM, it is not intended to be reused once compressed
Durability & Warranty
Expected Lifespan
Intended to last the service life of the installed starter/cover when properly torqued and installed on clean mating surfaces.
Warranty
Typical Cometic aftermarket gasket warranty applies via the retailer; coverage details vary by seller.
Maintenance
No routine maintenance required; inspect only if you notice oil seepage, leaks, or if the starter/cover is removed for other service.
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