COMETIC SKU: 68-10173

Cometic Milwaukee 8 Cam Housing - Cover Gasket M8 .032"afm 5pk Oe#257700370 — Harley-Davidson (2017-2019)

$41.34
Free shipping on orders $99+ · Best value guarantee
From $3.44/mo with Affirm. See if you prequalify
OUT OF STOCK
Free Shipping on orders $99+
Best Value Guarantee
30-Day Returnssee policy
Authorized Dealer — sourced direct
NOT SURE ABOUT FITMENT?

Cometic Milwaukee 8 cam housing cover gasket (.032" thick), sold in a 5-pack for Harley and Indian V-Twin engines. OEM replacement (part #257700370) engineered to seal the cam cover without leaks.

Features

  • 5-pack quantity
  • 0.032" thickness
  • OEM replacement specification
  • Milwaukee-Eight (M8) compatible

Specifications

  • Brand: Cometic
  • Manufacturer Part #: C10173
  • OEM Part #: 257700370
  • UPC: 191070083014
  • Thickness: 0.032"
  • Length: 8.55 in
  • Width: 8.05 in
  • Quantity: 5 per pack
  • Weight: 0.01 lbs

Fitment

Fits Harley-Davidson and Indian Motorcycle V-Twin engines with Milwaukee-Eight (M8) cam housing.

Frequently Asked Questions

How many gaskets are in a pack?

5 gaskets per pack — ideal for shops or multi-engine builds.

Will this fit Twin Cam or Evolution engines?

No — this gasket is specific to Milwaukee-Eight (M8) engines. Twin Cam and Evolution owners need different part numbers.

What's the OEM part number this replaces?

Cometic C10173 is equivalent to OEM part #257700370.

Do I need gasket sealer with this?

Check your engine manual. Most modern gaskets are used dry, but your build sheet will specify if additional sealer is needed.

BRANDCometic
TYPEGaskets/Seals
SKU68-10173
WEIGHT0.01 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