James Gaskets Big Twin Top End Gasket Kit - Harley Evolution
About James Gaskets
James Gaskets has supplied American V-twin gaskets, seals and O-rings for decades and is one of the most widely stocked names for Harley-Davidson engine, primary and transmission rebuilds. When a service manual calls for a specific gasket, James almost always has an exact-fit answer.
When your EVO-era V-twin needs a top-end refresh or rebuild, this James Gaskets Big Twin top-end gasket kit provides all the necessary seals. Engineered to OEM-replacement specifications, this kit is designed to restore compression and eliminate leaks, ensuring your engine runs optimally. It's a complete solution for cylinder head, rocker box, and related top-end components.
Why riders pick this
- Complete top-end gasket set for EVO Big Twin
- OEM-specification materials for dependable sealing
- Restores compression and eliminates leaks
- Covers cylinder head, rocker box, and more
- Ensures optimal engine performance
This James Gaskets Big Twin top-end gasket kit is specifically designed for EVO-era V-twin engines, providing every seal required for a complete top-end rebuild or refresh. Manufactured to direct OEM-replacement specifications, these gaskets are crucial for restoring lost compression and preventing common leaks that can plague older engines. Trust in James Gaskets quality to keep your Evolution Big Twin running strong and sealed tight.
Comprehensive Top-End Sealing
- Complete top-end gasket set for Evolution Big Twin engines
- Manufactured to OEM-specification materials for reliability
- Designed to restore compression and eliminate leaks
- Covers cylinder head, rocker box, and related components
Essential for EVO Top-End Maintenance
Maintaining the top end of your Evolution Big Twin is vital for its long-term performance and reliability. This James Gaskets kit simplifies the process by providing a comprehensive set of seals. Whether you're addressing a minor leak or undertaking a full cylinder head service, these gaskets ensure a precise fit and dependable seal. For best results, always follow the recommended torque sequences and procedures in your Harley-Davidson service manual.
Specifications
- Brand: James Gaskets
- Manufacturer Part #: 17040-92
- Length: 7.4 in
- Width: 9.3 in
- Height: 1.35 in
- Weight: 0.73 lbs
Common questions
What specific gaskets are included in this top-end kit?
This is a complete top-end set, including all seals needed for the cylinder head, rocker box, and related components of an EVO Big Twin engine.
Will this kit fit my Twin Cam or Milwaukee-Eight engine?
No, this James Gaskets kit is specifically for EVO-era Big Twin engines. Twin Cam and Milwaukee-Eight engines utilize different gasket specifications and require their own dedicated kits. Please confirm your engine type with Shop by Bike.
Is this kit sufficient for a full top-end rebuild?
Yes, this kit covers all top-end seals for an Evolution Big Twin. You may need separate gaskets for lower engine components, but for the top end, it's comprehensive.
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 | James Gaskets |
| TYPE | Gaskets/Seals |
| SKU | 681-4385 |
| WEIGHT | 0.73 lb |
