Your cart is empty
Start ShoppingCometic C9634F Twin Cam Carb/EFI Gasket - MLS Multi-Layer Steel Head Gasket for High-Performance Engines
Fits your
May not fit your
Description
Upgrade your Twin Cam engine's reliability with Cometic's C9634F MLS head gasket. Engineered for both carbureted and EFI systems, this gasket delivers exceptional sealing performance to prevent leaks and maintain peak power output.
Key Features
- Multi-Layer Steel (MLS) Construction: Durable, heat-resistant material withstands extreme engine temperatures and pressures for long-lasting performance.
- 0.040 in. Thickness: Precise compression rating ensures optimal sealing without over-stressing engine components.
- 4.000 in. Bore Size: Perfect fit for standard Twin Cam cylinder heads, eliminating compatibility issues.
- Standard Dimensions: Universally compatible with most Twin Cam engine configurations for hassle-free installation.
Why Choose This Product
Cometic's MLS gasket technology reduces the risk of overheating and coolant leaks, while its reinforced design handles high-performance modifications. Ideal for riders seeking reliable sealing in both stock and tuned Twin Cam engines, this gasket maintains compression integrity and prevents costly engine damage.
Delivery
Checking availability...
Estimated arrival
Order within to ship today
Orders ship
Shipping to
Enter your ZIP code for delivery estimate
Price Match Guarantee
Found it cheaper?
Log in to submit a price match request.
Price
Quantity
Free Shipping $100+
14-Day Returns
Secure Checkout
Price Match
Complete the Build
This item
$19.98
In Cart
Upgrade your Twin Cam engine's reliability with Cometic's C9634F MLS head gasket. Engineered for both carbureted and EFI systems, this gasket delivers exceptional sealing performance to prevent leaks and maintain peak power output.
Key Features
- Multi-Layer Steel (MLS) Construction: Durable, heat-resistant material withstands extreme engine temperatures and pressures for long-lasting performance.
- 0.040 in. Thickness: Precise compression rating ensures optimal sealing without over-stressing engine components.
- 4.000 in. Bore Size: Perfect fit for standard Twin Cam cylinder heads, eliminating compatibility issues.
- Standard Dimensions: Universally compatible with most Twin Cam engine configurations for hassle-free installation.
Why Choose This Product
Cometic's MLS gasket technology reduces the risk of overheating and coolant leaks, while its reinforced design handles high-performance modifications. Ideal for riders seeking reliable sealing in both stock and tuned Twin Cam engines, this gasket maintains compression integrity and prevents costly engine damage.
| SKU | GM2735CB5F |
|---|---|
| MPN | C9634F |
| Brand | Cometic |
| Category | Gaskets/Seals |
0.0
0 reviews
0
Log in to write a review.
Reviews
No reviews yet. Be the first to review this product!
Featured Review
| Make | Model | Years |
|---|---|---|
| Harley-Davidson | Twin Cam 88 Carbureted Models | 1999-2006 |
| Harley-Davidson | Twin Cam EFI Models | 2007-2017 |
| Harley-Davidson | FLH/FLT Touring Models | 1999-2017 |
| Harley-Davidson | FXD Dyna Models | 1999-2017 |
Frequently Asked Questions
Yes, C9634F fits 1999-2017 Twin Cam EFI models including FLHTCU Ultra Classic.
Yes, 0.040" MLS vs stock paper ~0.035". Provides better sealing for performance builds.
No milling required for stock heads. Compression increases ~0.5-1 point depending on chamber volume.
Designed for both Twin Cam carbureted and EFI Big Twin engines.
Installation Guide
Difficulty
Medium
Est. Time
1 hr 0 min
Tools Required
- torque wrench
- socket set
- gasket scraper
- head bolt kit
Pro Tips
- Clean mating surfaces meticulously
- Follow Harley torque specs in crisscross pattern
- Use new ARP head studs for high compression
Common Mistakes to Avoid
- Not cleaning surfaces thoroughly
- Incorrect torque sequence
- Reusing old head bolts
Comparison vs Stock/OEM
Multi-layer steel vs single-layer paper/composite
Improvements
- Superior sealing under high pressure/boost
- Better heat resistance
- Allows higher compression ratios
Considerations
- Requires precise torque procedure
- More expensive than OEM
Durability & Warranty
Expected Lifespan
Engine life with proper torque - 50,000+ miles
Warranty
1 year Cometic manufacturer defect warranty
Maintenance
Retorque head bolts after 500 miles initial run-in
What Others Are Saying
Reviews from across the web
