COMETIC SKU: 68-10216

Cometic Transmission Gasket .060" AFM - Harley Milwaukee-Eight

$25.000,00
Free shipping on orders $99+ · Best value guarantee
From $2.083,33/mo with Affirm. See if you prequalify
IN STOCK — Ships within 24 hours
Free Shipping on orders $99+
Best Value Guarantee
30-Day Returnssee policy
Authorized Dealer — sourced direct
NOT SURE ABOUT FITMENT?

About Cometic

Cometic Gasket manufactures multi-layer steel head gaskets and complete gasket kits in Concord, Ohio. On a built V-twin running higher compression or a big-bore kit, the MLS head gasket is what keeps the top end sealed — which is why Cometic is the default spec on so many engine builds.

Upgrade your Milwaukee-Eight transmission's sealing capability with this Cometic gasket, engineered to OEM specification with a .060" AFM thickness. Utilizing advanced gasket technology, this direct replacement for OEM part #25700453 ensures a reliable, leak-free seal for your V-twin's drivetrain. It's the ideal choice for any transmission service or rebuild.

Why riders pick this

  • OEM-spec replacement for Milwaukee-Eight transmissions
  • Precise .060" AFM thickness for optimal seal
  • Advanced Cometic gasket technology prevents leaks
  • Direct replacement for Harley OE part #25700453

When you're pushing your Milwaukee-Eight, every component needs to perform, especially the seals that hold vital fluids in. This Cometic transmission gasket, with its precise .060" AFM thickness and advanced gasket technology, provides a superior seal for your M8 transmission case. It’s engineered as a direct replacement, ensuring a perfect fit and robust performance whether you’re doing routine maintenance or a full transmission overhaul.

Advanced Sealing for M8 Transmissions

  • OEM-spec replacement for Milwaukee-Eight transmissions
  • Features precise .060" AFM thickness
  • Utilizes advanced Cometic gasket technology for superior sealing
  • Direct replacement for Harley OE part #25700453

Built for Performance and Longevity

The transmission on a high-performance Harley-Davidson V-twin demands a gasket that can withstand heat, pressure, and vibration. Cometic delivers with this .060" AFM gasket, designed to prevent leaks and maintain the integrity of your drivetrain. Always replace your transmission gasket with a quality component like this Cometic unit when the case is opened, ensuring your M8 continues to deliver power reliably and without compromise.

Specifications

  • Brand: Cometic
  • Manufacturer Part #: C10216
  • OE Part #: 25700453
  • Thickness: 0.060" AFM
  • Length: 8 in
  • Width: 8.5 in
  • Height: 0.25 in
  • Weight: 0.1 lbs

Common questions

Does this gasket fit my Milwaukee-Eight Harley?

Yes, this Cometic gasket is a direct OEM-spec replacement for Milwaukee-Eight transmissions found across Touring, Softail, and Dyna platforms.

What OEM part number does this replace?

This Cometic gasket (part C10216) is the direct equivalent and replacement for Harley-Davidson OE part #25700453.

Is this a single gasket or a set?

This is a single-pack (1pk) containing one transmission gasket, sufficient for one installation.

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.
BRANDCometic
TYPEGaskets/Seals
SKU68-10216
WEIGHT0.1 lb
Please contact us to confirm fitment for your specific motorcycle, or check the product title for compatibility notes.
CUSTOMER REVIEWS
4.87
15 RATINGS
5★ 13
4★ 2
3★ 0
2★ 0
1★ 0
✓ VERIFIED
Jan 16, 2020

Almost identical to OEM. Good fit. I did miss that they are sold as each and not as a pair. Small detail and my fault but it did slow my project down a bit.

— Anonymous
✓ VERIFIED
Oct 18, 2021

Great seals and gaskets do the job once when you use quality gaskets

— Anonymous
✓ VERIFIED
Sep 26, 2019

Seal good and I haven't had any issues..

— Anonymous
✓ VERIFIED
Jun 27, 2025

It worked like it was suppose to, delivery was quick. <br />Pleased.

— Lloyd S
✓ VERIFIED
Dec 19, 2023

Just what I needed

Needed these when changing out intake manifold. They worked perfect for my ‘03 sporty.

— Carlos L
✓ VERIFIED
Jun 12, 2023

Cometic from here on out

These seals are the only ones I'll use. others came close but, for me, these are best.

— Vincent S