✓ VERIFIED
Sep 18, 2022
Everything from valve seals to muffler-brings. I had all the gaskets I needed. Great fit and a great seal. No leaks.
JAMES GASKETS
SKU: 681-4384
James Gaskets Big Twin Motor with .045 MLS Head Gaskets Kit - Harley Evolution
$147.95
Free shipping on orders $99+ · Best value guarantee
affirm
From $12.32/mo with Affirm.
See if you prequalify
IN STOCK
— Ships within 24 hours
Free Shipping on orders $99+
Best Value Guarantee
30-Day Returns — see policy
Authorized Dealer — sourced direct
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.
For Evolution Big Twin owners performing an engine rebuild or top-end work, this James Gaskets motor kit offers a comprehensive sealing solution. It includes a complete set of gaskets, notably featuring .045 multi-layer steel (MLS) head gaskets. This kit is designed to restore OEM compression and effectively prevent leakage across all critical engine surfaces.
Why riders pick this
- Complete motor gasket set for Evolution Big Twin
- Includes .045 multi-layer steel (MLS) head gaskets
- Designed for stock bore and stroke configurations
- Restores OEM compression and prevents leaks
- Ensures comprehensive engine sealing
This James Gaskets Big Twin motor gasket kit is tailored for Evolution engine rebuilds and top-end work, specifically for stock bore and stroke configurations. The inclusion of .045 multi-layer steel (MLS) head gaskets provides enhanced sealing integrity, crucial for maintaining optimal compression and preventing leaks. This complete engine sealing set ensures your Evolution V-twin performs reliably after service.
Advanced Sealing for Evolution Engines
- Features high-performance .045 multi-layer steel (MLS) head gaskets
- Complete motor gasket set for comprehensive engine sealing
- Designed for Evolution Big Twin rebuilds
- Helps restore OEM compression and prevent leaks
Precision for Your EVO Rebuild
When rebuilding your Evolution Big Twin, precision is key. This James Gaskets kit provides the necessary components to ensure a tight, reliable seal throughout the engine. The .045 MLS head gaskets are a significant upgrade, offering superior performance and longevity compared to traditional gasket materials. This kit is an essential part of any serious Evolution engine refresh, working best when installed according to your service manual's specifications.
Specifications
- Brand: James Gaskets
- Manufacturer Part #: 17040-92-MLS
- Head Gasket Type: Multi-layer steel (.045)
- Length: 7.45 in
- Width: 9.4 in
- Height: 1.35 in
- Weight: 0.853 lbs
Common questions
What type of head gaskets are included in this kit?
This kit features .045 multi-layer steel (MLS) head gaskets, known for their enhanced sealing properties and durability, along with all other necessary motor gaskets.
Is this gasket kit compatible with bored or stroked Evolution engines?
This James Gaskets kit is designed for Evolution Big Twin engines with stock bore and stroke configurations. If your engine has been modified, you may need different head gasket specifications. Please confirm with Shop by Bike.
Do I need to use a torque wrench for installation?
Yes, proper installation of engine gaskets, especially head gaskets, requires precise torque. Always follow the torque specifications outlined in your Harley-Davidson service manual.
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 | 681-4384 |
| WEIGHT | 0.85 lb |
Please contact us to confirm fitment for your specific motorcycle, or check the product title for compatibility notes.
CUSTOMER REVIEWS
4.78
36 RATINGS
5★
31
4★
4
3★
0
2★
0
1★
1
✓ VERIFIED
Aug 4, 2023
Evo gaskets
Everything you need for an engine rebuild.
✓ VERIFIED
Jun 17, 2023
Hope they are better than the original gasket set. What I used out of the kit fit.
✓ VERIFIED
May 3, 2021
one off the best gasket sets you can get.
✓ VERIFIED
May 12, 2020
Everything was a nice tight fit. Seems to be of good quality materials etc
✓ VERIFIED
Apr 28, 2024
Good stuff
James is one of the best. Use in all my work as long as I can get them
