JAMES GASKETS SKU: 681-4395

James Gaskets Big Twin Rocker Cover Gasket Kit with Metal Base - Harley Evolution

$90.95
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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.

Keep your Harley Evolution Big Twin sealed tight with this James Gaskets rocker cover gasket kit. It's engineered as a complete solution to address oil seepage and maintain optimal engine performance. This kit provides all necessary gaskets and hardware to service your air-cooled V-twin's rocker covers.

Why riders pick this

  • Complete rocker cover gasket set for Big Twin engines
  • Features a durable metal rocker base gasket
  • Includes all necessary hardware for installation
  • Designed for air-cooled Evolution V-twin applications

When it's time to refresh the top end of your Harley Evolution Big Twin, don't compromise on seals. This James Gaskets rocker cover gasket kit is designed to provide a complete, reliable seal. The inclusion of a metal rocker base gasket ensures enhanced durability and a secure fit, crucial for the longevity of your engine.

Reliable Sealing Performance

  • Complete gasket set for full rocker cover service
  • Durable metal rocker base gasket for a secure seal
  • Includes all necessary hardware for a straightforward installation
  • Engineered for air-cooled Big Twin engines

Maintain Your Top End

Whether you're performing routine maintenance or chasing down an oil leak, this kit simplifies the process. By providing all the required components in one package, it eliminates the guesswork and the need for multiple purchases. Ensure your engine's top end remains sealed and performing as it should, mile after mile.

Specifications

  • Brand: James Gaskets
  • Manufacturer Part #: 17038-90-X
  • Length: 6.75 in
  • Width: 10.55 in
  • Height: 0.85 in
  • Weight: 0.343 lbs

Common questions

What's included in this James Gaskets kit?

This kit includes a complete rocker cover gasket set with a metal rocker base gasket, plus all mounting hardware needed for installation on your Big Twin.

Will this kit fit Twin Cam or Milwaukee-Eight engines?

No, this kit is specifically designed for air-cooled Evolution Big Twin engines. Twin Cam and Milwaukee-Eight models require different gasket kits. Please confirm fitment for your specific model year using our Shop by Bike tool.

Do I need to purchase any other gaskets for a rocker cover rebuild?

This is a complete kit for the rocker covers, meaning all essential gaskets and hardware are included. You should not need additional purchases for this specific service.

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.
BRANDJames Gaskets
TYPEGaskets/Seals
SKU681-4395
WEIGHT0.34 lb
Please contact us to confirm fitment for your specific motorcycle, or check the product title for compatibility notes.
CUSTOMER REVIEWS
5
14 RATINGS
5★ 14
4★ 0
3★ 0
2★ 0
1★ 0
✓ VERIFIED
Oct 1, 2023

Excellent set

Excellent set for the price, easy to install, very durable products. I would recommend this set 10/10

— Eric S
✓ VERIFIED
Sep 11, 2023

Good quality

Breaking engine in right now and everything is holding tight. Very pleased

— Hawk R
✓ VERIFIED
Aug 28, 2023

Gasket set

Great gasket set, includes everything you need to reseal top end.

— James N
✓ VERIFIED
Jul 31, 2021

Quality parts in a timely manner

— Anonymous
✓ VERIFIED
Mar 29, 2021

Fit like it should, super quick shipping

— Anonymous
✓ VERIFIED
Mar 21, 2021

Gasket set seems to be of good quality. Everything fit just like oem gaskets and seals but made better lol. So far so good, Everything is nice a dry now.

— Anonymous