✓ VERIFIED
Feb 12, 2025
In my opinion the best gaskets for a Harley. Always look for cometic first.
COMETIC
SKU: 68-9070-030
Cometic Head Gasket 4.060" Bore 2-Pack - Harley Twin Cam
$59.50
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About Cometic
Cometic Gasket manufactures multi-layer steel head gaskets and complete gasket kits in Concord, Ohio. On a built V-twin running higher compression or a big-bore kit, the MLS head gasket is what keeps the top end sealed — which is why Cometic is the default spec on so many engine builds.
When upgrading or servicing your Harley Twin Cam, a dependable head gasket is crucial. This Cometic head gasket for 4.060" bore Twin Cam V-twin engines is sold in a 2-pack, offering a reliable seal for high-performance builds.
Why riders pick this
- For 4.060" bore Twin Cam engines
- Built with modern gasket materials
- Supports higher performance levels
- Two gaskets included per pack
Built with modern gasket materials and precision manufacturing, these Cometic head gaskets ensure reliable sealing at higher performance levels. Essential for maintaining engine compression and preventing oil or coolant leaks, these gaskets are a vital component for any top-end work on your Harley Twin Cam.
Advanced Sealing for Twin Cam Engines
- Designed for 4.060" bore Twin Cam V-twin engines
- Manufactured with modern gasket materials for durability
- Supports reliable sealing even at higher performance levels
- Two gaskets included per pack for a complete top-end service
Secure Your Engine's Performance
Proper head gasket selection and installation are key to engine longevity and performance. This Cometic 2-pack provides the quality and precision needed for a secure, leak-free seal on your Harley Twin Cam. Always verify your engine's bore size before ordering to ensure correct fitment and consult your service manual for proper torque specifications during installation.
Specifications
- Brand: Cometic
- Manufacturer Part #: C9070-030
- UPC: 191070031077
- Bore Size: 4.060"
- Length: 6 in
- Width: 6.9 in
- Height: 0.5 in
- Weight: 0.09 lbs
Common questions
How many gaskets are included in a pack?
Each pack contains two head gaskets, which is enough for one complete head service.
Will this fit my Harley with a Milwaukee-Eight (M8) engine?
No, this part is specifically for Twin Cam engines. Milwaukee-Eight (M8) engines require a different bore-specific head gasket.
Do I need to retorque the head after installation?
Yes, it is crucial to follow your engine manual's head bolt torque sequence and specifications after installation. Improper torque can lead to leaks.
Ordering from Vtwinbikers
- Brand new, sourced through authorized US distribution — never used, never grey-market.
- Not sure it fits? Use Shop by Bike to filter by your year and model, or email us and we will confirm before you order.
- Harley-Davidson and Indian Motorcycle is all we do, so you are talking to people who ride what you ride.
| BRAND | Cometic |
| TYPE | Gaskets/Seals |
| SKU | 68-9070-030 |
| WEIGHT | 0.09 lb |
Please contact us to confirm fitment for your specific motorcycle, or check the product title for compatibility notes.
CUSTOMER REVIEWS
4.55
11 RATINGS
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✓ VERIFIED
Oct 30, 2024
Proceed with caution
Cosmetic rocker box gaskets leak on chrome twin cam covers. May work fine on standard covers.
✓ VERIFIED
Apr 9, 2022
The gaskets in the Cometic kit fit very well. No issues
✓ VERIFIED
Mar 28, 2022
Can't go wrong with Cometic, best in the business.
✓ VERIFIED
Mar 5, 2022
Every gasket needed. Zero leaks yet
✓ VERIFIED
Mar 26, 2021
Great product
