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Start ShoppingCometic C9070-040 MLS Head Gasket - 0.040 in Thickness for 97mm Bore - High-Performance Gaskets/Seals
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Description
Upgrade your engine's reliability with the Cometic C9070-040 MLS Head Gasket, engineered for precision sealing and long-term durability. This high-performance gasket is designed to handle extreme temperatures and pressures, making it ideal for demanding powersports applications.
Key Features
- Multi-Layer Steel (MLS) Construction: Provides exceptional heat resistance and sealing integrity for high-performance engines.
- 0.040 in Thickness: Optimized compression and sealing efficiency for modern cylinder heads.
- 97mm Bore Size: Precision-machined for perfect fitment on compatible engines.
- Lightweight Design: Only 0.2 lbs, reducing overall engine weight without compromising strength.
Why Choose This Product
Cometic's MLS head gasket delivers unmatched durability and sealing performance, preventing leaks and maintaining optimal engine efficiency. Its advanced material composition ensures compatibility with high-output engines, while the precise dimensions guarantee a perfect fit. Riders can trust this gasket to withstand extreme conditions, delivering reliable performance for years.
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Upgrade your engine's reliability with the Cometic C9070-040 MLS Head Gasket, engineered for precision sealing and long-term durability. This high-performance gasket is designed to handle extreme temperatures and pressures, making it ideal for demanding powersports applications.
Key Features
- Multi-Layer Steel (MLS) Construction: Provides exceptional heat resistance and sealing integrity for high-performance engines.
- 0.040 in Thickness: Optimized compression and sealing efficiency for modern cylinder heads.
- 97mm Bore Size: Precision-machined for perfect fitment on compatible engines.
- Lightweight Design: Only 0.2 lbs, reducing overall engine weight without compromising strength.
Why Choose This Product
Cometic's MLS head gasket delivers unmatched durability and sealing performance, preventing leaks and maintaining optimal engine efficiency. Its advanced material composition ensures compatibility with high-output engines, while the precise dimensions guarantee a perfect fit. Riders can trust this gasket to withstand extreme conditions, delivering reliable performance for years.
| SKU | GM321C87C7 |
|---|---|
| MPN | C9070-040 |
| Brand | Cometic |
| Category | Gaskets/Seals |
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Featured Review
| Make | Model | Years |
|---|---|---|
| Honda | CRF450R | 2019-2025 |
| Honda | CRF450RX | 2019-2025 |
| Honda | CRF450RL | 2020-2025 |
Frequently Asked Questions
Yes, compatible with 2019-2025 CRF450R models per manufacturer fitment.
No, stock is typically 0.030 in; 0.040 is for raised compression or milled heads.
Yes, but check compression ratio; ideal for performance builds.
Recommended to use ARP head studs for best results with MLS gaskets.
Installation Guide
Difficulty
Medium
Est. Time
1 hr 0 min
Tools Required
- torque wrench
- socket set
- gasket scraper
- engine stand or hoist
Pro Tips
- Clean all surfaces with brake cleaner
- Follow factory torque specs and sequence
- Apply light oil to bolts
Common Mistakes to Avoid
- Not cleaning mating surfaces thoroughly
- Incorrect torque sequence
- Over-torquing head bolts
Comparison vs Stock/OEM
MLS construction vs. OEM composite; superior sealing under high pressure/boost
Improvements
- Better heat resistance
- Handles higher compression
- Reduced blow-by
Considerations
- Requires precise torque; not reusable
Durability & Warranty
Expected Lifespan
Engine rebuild interval (50-100+ hours racing)
Warranty
1 year limited manufacturer warranty
Maintenance
Inspect during top-end services; replace if damaged
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