Almost identical to OEM. Good fit. I did miss that they are sold as each and not as a pair. Small detail and my fault but it did slow my project down a bit.
Cometic Intake/Exhaust Manifold Gasket 10-Pack - Harley & Indian V-Twin
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.
This Cometic intake and exhaust manifold gasket 10-pack is a direct replacement for OE# 63815-99, designed for V-twin motorcycle engines. It provides a reliable seal for Harley-Davidson and Indian Motorcycle applications, ideal for shops or multi-bike owners.
Why riders pick this
- 10-pack for shops or multiple services
- Direct OE replacement for part number 63815-99
- Ensures reliable intake and exhaust sealing
- Fits Harley-Davidson and Indian V-twin engines
Ensuring a leak-free seal on your intake and exhaust manifolds is crucial for engine performance and sound. These Cometic gaskets are manufactured to OEM specifications, providing a precise fit and dependable seal to prevent exhaust leaks and maintain proper air-fuel mixture. The 10-pack quantity makes it convenient for repeated service or stocking your workbench.
Critical Sealing for Performance
- Convenient 10-pack for multiple services or spares
- Direct OE replacement for part number 63815-99
- Designed for reliable sealing on V-twin intake and exhaust manifolds
- Suitable for a wide range of Harley-Davidson and Indian Motorcycle engines
Keep Your V-Twin Running Strong
Exhaust leaks can rob power and create an unpleasant sound, while intake leaks can lead to poor running conditions. These Cometic gaskets offer a high-quality solution to these issues, ensuring your V-twin runs efficiently. Always refer to your motorcycle's service manual for proper installation procedures and torque specifications to ensure a perfect seal.
Specifications
- Brand: Cometic
- Manufacturer Part #: C9679
- OE Part #: 63815-99
- Weight: 0.1925 lbs
- Quantity: 10 per pack
Common questions
What engine types does this gasket fit?
This gasket is designed for V-twin motorcycle engines, including many Harley-Davidson and Indian Motorcycle applications that use OE part number 63815-99.
Why is this sold in a 10-pack?
The 10-pack quantity is ideal for professional shops, riders who perform frequent maintenance on multiple bikes, or those who prefer to have spare gaskets on hand.
Do I need any special tools for installation?
Installation generally follows standard manifold gasket replacement procedures. We recommend consulting your bike's service manual for specific instructions and proper torque specifications.
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 | 68-9679 |
| WEIGHT | 0.19 lb |
Great seals and gaskets do the job once when you use quality gaskets
Seal good and I haven't had any issues..
It worked like it was suppose to, delivery was quick. <br />Pleased.
Just what I needed
Needed these when changing out intake manifold. They worked perfect for my ‘03 sporty.
Cometic from here on out
These seals are the only ones I'll use. others came close but, for me, these are best.