Cometic Primary Housing Gasket .060" AFM - Harley Milwaukee-Eight & 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.
Ensure a leak-free primary with this Cometic primary housing gasket, engineered with .060" AFM material. Designed for Milwaukee-Eight and other V-twin engines, this gasket provides a reliable seal for your primary cover. It's a direct replacement for the OEM part, built to prevent oil leakage under all riding conditions.
Why riders pick this
- Constructed from durable .060" AFM material
- Ensures a reliable, leak-free primary cover seal
- Direct OEM replacement for easy installation
- Designed for Milwaukee-Eight and other V-twin engines
A weeping primary cover is not just messy; it can lead to bigger problems down the road. This Cometic primary housing gasket, crafted from advanced fiber material (AFM) with a .060" thickness, is designed to provide a robust and lasting seal. Engineered to OEM specifications, it ensures a perfect fit and dependable performance for your Harley-Davidson Milwaukee-Eight or other compatible V-twin. Don't let a minor leak turn into a major headache—upgrade your seal with Cometic.
Advanced Sealing for Your Primary
- Constructed from .060" AFM (Advanced Fiber Material) for superior sealing
- Engineered to OEM specifications for a direct and precise fit
- Designed to withstand the demands of V-twin engine operation
- Helps prevent oil leaks from the primary cover
Maintain Your Drivetrain Integrity
Whether you're performing routine maintenance, replacing a clutch, or upgrading your primary components, a fresh gasket is essential. This Cometic primary housing gasket is a critical component for maintaining the integrity of your V-twin's primary drive. Its durable construction provides confidence that your primary fluid will stay where it belongs, keeping your drivetrain operating smoothly and cleanly.
Specifications
- Brand: Cometic
- Manufacturer Part #: C10198F1
- OEM Part Number: 25700378
- Thickness: 0.060" AFM
- Quantity: 1 per pack
- Length: 0.4 in
- Width: 0.5 in
- Height: 0.7 in
- Weight: 0.23 lbs
Common questions
Will this primary housing gasket fit my specific Harley-Davidson model?
This gasket fits V-twin engines that use OEM part 25700378. We recommend verifying your bike's specific part number or confirming fitment using our 'Shop by Bike' tool before ordering.
What does AFM material mean?
AFM stands for Advanced Fiber Material, a high-performance gasket compound engineered by Cometic for superior durability and heat resistance in demanding V-twin engine applications.
Is this gasket intended for one-time use only?
Yes, primary housing gaskets are generally considered single-use components. It is recommended to replace them whenever the primary cover is removed for service to ensure a proper seal.
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 | 68-10198F1 |
| WEIGHT | 0.23 lb |
