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Start ShoppingCOMETIC Evo Big Twin Inspection Cover Gasket - MLS Multi-Layer Steel with Silicone Beading
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Description
Ensure optimal engine performance and durability with COMETIC's premium gasket solution for Evo Big Twin inspection covers. This multi-layer steel (MLS) gasket with silicone beading delivers a perfect seal while simplifying maintenance for riders who demand reliability.
Key Features
- Multi-Layer Steel (MLS) Construction: Provides superior sealing strength and resistance to heat, oil, and compression for long-lasting performance.
- Silicone Beading: Enhances sealing integrity around edges, preventing leaks and ensuring a snug fit for stock Evo Big Twin covers.
- Standard Thickness (0.015 in.): Optimized for factory-fit applications, balancing durability with minimal compression for easy installation.
- Exact Fitment: Designed for stock Evo Big Twin derby/inspection covers (approx. 4.5" x 4.5") for a precise, leak-free seal.
Why Choose This Product
Upgrade your engine's reliability with a gasket engineered for high-performance powersports applications. COMETIC's MLS design reduces the risk of warping and blow-by, while the silicone beading ensures a flawless seal during high-temperature operation. Lightweight yet durable, this gasket simplifies maintenance without compromising performance, making it a must-have for serious riders.
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Ensure optimal engine performance and durability with COMETIC's premium gasket solution for Evo Big Twin inspection covers. This multi-layer steel (MLS) gasket with silicone beading delivers a perfect seal while simplifying maintenance for riders who demand reliability.
Key Features
- Multi-Layer Steel (MLS) Construction: Provides superior sealing strength and resistance to heat, oil, and compression for long-lasting performance.
- Silicone Beading: Enhances sealing integrity around edges, preventing leaks and ensuring a snug fit for stock Evo Big Twin covers.
- Standard Thickness (0.015 in.): Optimized for factory-fit applications, balancing durability with minimal compression for easy installation.
- Exact Fitment: Designed for stock Evo Big Twin derby/inspection covers (approx. 4.5" x 4.5") for a precise, leak-free seal.
Why Choose This Product
Upgrade your engine's reliability with a gasket engineered for high-performance powersports applications. COMETIC's MLS design reduces the risk of warping and blow-by, while the silicone beading ensures a flawless seal during high-temperature operation. Lightweight yet durable, this gasket simplifies maintenance without compromising performance, making it a must-have for serious riders.| SKU | GM36A29710 |
|---|---|
| MPN | C9183F5 |
| Brand | Cometic |
| Category | Gaskets/Seals |
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Featured Review
| Make | Model | Years |
|---|---|---|
| Harley-Davidson | Evolution Big Twin | 1986-1999 |
| Harley-Davidson | Softail (FXST, FLST) | 1986-1999 |
| Harley-Davidson | Dyna (FXD) | 1986-1999 |
| Harley-Davidson | Touring (FLT, FLH) | 1986-1999 |
Frequently Asked Questions
Yes, C9183F5 fits all 1986-1999 Evo Big Twin models including Road King, provided you have the stock derby cover.
This is 0.015" standard thickness, same as most OEM gaskets. Cometic offers other thicknesses if needed.
Only guaranteed fit with stock Harley inspection/derby covers. Check with cover manufacturer for aftermarket compatibility.
No, this is just the flat gasket. The O-ring is separate (Harley PN 11105 or equivalent).
Installation Guide
Difficulty
Easy
Est. Time
15 min
Tools Required
- 8mm socket
- torque wrench
- gasket scraper
- Harley torque specs: 90-110 in-lbs
Pro Tips
- Clean surfaces with brake cleaner
- Apply light oil to bolts
- Torque in criss-cross pattern
Common Mistakes to Avoid
- Not cleaning mating surfaces thoroughly
- Over-tightening (can warp cover)
- Reusing old gasket
Comparison vs Stock/OEM
Multi-layer steel vs. single-layer paper/composite OEM
Improvements
- Superior sealing under high heat/pressure
- Re-usable multiple times
- Will not blow out like paper gaskets
Considerations
- Higher cost
- Requires perfectly flat surfaces
Durability & Warranty
Expected Lifespan
Engine life (multiple reuses)
Warranty
Cometic lifetime defect warranty
Maintenance
Inspect during oil changes, clean/reuse as needed
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