✓ VERIFIED
Feb 2, 2023
Great parts. Fast delivery.
JAMES GASKETS
SKU: 681-4386
James Gaskets Big Twin Top End with MLS Head Gaskets Kit - Harley Evolution
$147.95
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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 Harley Evolution engine owners, this James Gaskets Big Twin top-end gasket kit provides a high-performance sealing solution. It features durable multi-layer steel (MLS) head gaskets along with a complete set of seals for the cylinder head, rocker covers, and related passages. This kit is designed as a direct drop-in replacement for original equipment gaskets on Big Twin Evo motors, offering enhanced sealing capabilities.
Why riders pick this
- Complete top-end gasket set for EVO Big Twin
- Features durable multi-layer steel (MLS) head gaskets
- Direct OEM replacement specification
- All seals for cylinder head and rocker covers
- Enhances sealing and reliability
This James Gaskets Big Twin top-end gasket kit is engineered to provide superior sealing for your Harley Evo engine. The inclusion of multi-layer steel (MLS) head gaskets is a significant upgrade, offering enhanced durability and a more robust seal compared to traditional gasket materials. This comprehensive kit includes all necessary seals for the cylinder head, rocker covers, and associated passages, making it ideal for a complete top-end overhaul on your Evolution Big Twin.
Advanced Sealing for EVO Top Ends
- Features high-performance multi-layer steel (MLS) head gaskets
- Complete top-end gasket set for Evolution Big Twin engines
- Direct OEM replacement specification for a precise fit
- Includes all seals for cylinder head and rocker cover components
Performance and Reliability for Your EVO
When rebuilding the top end of your Evolution Big Twin, upgrading to MLS head gaskets can provide a significant boost in reliability and sealing performance. This James Gaskets kit delivers that upgrade, ensuring your engine maintains optimal compression and remains leak-free. It's an essential component for any performance-minded rider or anyone seeking to maximize the lifespan of their Evo motor. Always follow the manufacturer's recommended installation procedures for best results.
Specifications
- Brand: James Gaskets
- Manufacturer Part #: 17033-83-MLS
- Length: 7.55 in
- Width: 9.4 in
- Height: 1.4 in
- Weight: 0.673 lbs
Common questions
What type of head gaskets are included in this kit?
This James Gaskets kit includes high-performance multi-layer steel (MLS) head gaskets, along with all other cylinder head seals, rocker cover gaskets, and related passage seals for a complete top-end overhaul.
Will this kit fit Twin Cam or Milwaukee-Eight engines?
No, this kit is specifically designed for Big Twin Evo engines only. Twin Cam and Milwaukee-Eight powerplants require different gasket part numbers. Please confirm your engine type with Shop by Bike.
Is this a direct OEM replacement?
Yes, James Gaskets manufactures this kit to OEM specifications, making it a direct drop-in replacement for stock Evo gaskets while offering the enhanced performance of MLS head gaskets.
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 | 681-4386 |
| WEIGHT | 0.67 lb |
Please contact us to confirm fitment for your specific motorcycle, or check the product title for compatibility notes.
CUSTOMER REVIEWS
4.7
30 RATINGS
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✓ VERIFIED
May 5, 2024
Has everything I needed. James gaskets always seal up great. Used no gasket sealers.
✓ VERIFIED
Nov 28, 2022
Nice Set of Gaskets
✓ VERIFIED
Nov 15, 2022
have used james gaskets for years,as usual no problems
✓ VERIFIED
Aug 3, 2022
James gaskets never miss. Order now.
✓ VERIFIED
Mar 15, 2022
Very good quality. Works great.
