JAMES GASKETS SKU: 681-6105

James Gaskets Milwaukee-Eight Rocker Box Assembly Gasket 2/PK - Harley-Davidson M8

$28.95
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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.

These James Gaskets Milwaukee-Eight rocker box assembly gaskets provide a reliable seal between the rocker box cover and the cylinder head on your M8 engine. Made in the USA to OEM specifications, this two-pack ensures you have the necessary gaskets to service both cylinders on your Harley-Davidson Milwaukee-Eight V-twin, preventing oil leaks and maintaining engine integrity.

Why riders pick this

  • Made in the U.S.A. for trusted quality
  • Two gaskets per pack to cover both cylinders
  • Direct OEM-specification replacement for M8 engines
  • Ensures a reliable, leak-free rocker box seal

When performing top-end work or routine maintenance on your Harley-Davidson Milwaukee-Eight, using high-quality gaskets is critical for a leak-free seal. James Gaskets delivers with these Milwaukee-Eight rocker box assembly gaskets, designed as a direct OEM-specification replacement. Each two-pack provides enough gaskets to cover both cylinders of your M8 engine, ensuring a complete and professional seal during reassembly. Trust in American-made quality to keep your V-twin running strong.

Reliable Seal for M8 Engines

  • Made in the U.S.A. for superior quality control
  • Two-pack quantity covers both cylinders of a V-twin M8 engine
  • Direct OEM-specification replacement for precise fitment
  • Ensures a leak-free seal for your rocker box assembly

Maintain Peak Engine Performance

Preventing oil leaks from your rocker box is essential not only for cleanliness but also for maintaining proper engine oil levels and pressure. These James Gaskets are engineered to provide a robust and lasting seal, giving you peace of mind after any top-end service. Whether you're swapping cams, checking valve clearances, or simply performing a visual inspection, having fresh, high-quality gaskets on hand is a smart choice for any Milwaukee-Eight owner.

Specifications

  • Brand: James Gaskets
  • Manufacturer Part #: 25700372
  • Quantity: 2 per pack
  • Length: 10 in
  • Width: 9 in
  • Height: 0.23 in
  • Weight: 0.05 lbs

Common questions

How many gaskets are included in this pack?

This pack contains two gaskets, which is enough to replace the rocker box assembly gaskets for both cylinders on your Milwaukee-Eight V-twin engine.

Will these gaskets fit Twin Cam or Evolution engines?

No, these gaskets are specifically designed for Milwaukee-Eight (M8) engines. Twin Cam and earlier Harley-Davidson engines require different gasket part numbers.

Are these gaskets considered an OEM replacement?

Yes, James Gaskets manufactures these to original equipment specifications, making them a direct and reliable replacement for your Milwaukee-Eight rocker box assembly.

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
SKU681-6105
WEIGHT0.05 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