✓ VERIFIED
Apr 17, 2025
Gasket quality
Great gasket kit over delivered in the quality of the gasket set great job
COMETIC
SKU: 68-10226
Cometic Milwaukee 8 Rocker Box Rebuild Kit - M8 Rocker BOX Rebuild KIT — Harley-Davidson (2018-2021)
$76.72
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Cometic Milwaukee 8 rocker box rebuild kit for Harley M8 engines, containing all gaskets and seals needed to service the rocker boxes. Direct replacement for stock components during top-end maintenance or repair.
Features
- Complete gasket and seal set for M8 rocker boxes
- Designed for Milwaukee-Eight engine platform
Specifications
- Brand: Cometic
- Manufacturer Part #: C10226
- Length: 8 in
- Width: 8 in
- Height: 2 in
- Weight: 1 lbs
Fitment
Fits Harley-Davidson Milwaukee-Eight (M8) engine rocker boxes.
Frequently Asked Questions
What's included in this rebuild kit?
All gaskets and seals required to service the M8 rocker boxes during top-end work or maintenance.
Will this fit Twin Cam rocker boxes?
No — this kit is specific to Milwaukee-Eight (M8) engines. Twin Cam engines require different gasket sets.
Do I need any special tools to install these gaskets?
Standard gasket scraper and torque wrench are recommended. Follow Harley service manual specs for rocker box bolt torque.
Can I reuse the old rocker box bolts?
Inspect bolts for damage. Many riders prefer new hardware when doing a rocker box rebuild for reliability.
| BRAND | Cometic |
| TYPE | Engine |
| SKU | 68-10226 |
| WEIGHT | 1.0 lb |
Please contact us to confirm fitment for your specific motorcycle, or check the product title for compatibility notes.
CUSTOMER REVIEWS
4.67
18 RATINGS
5★
16
4★
0
3★
1
2★
0
1★
1
✓ VERIFIED
Jun 3, 2023
DONT FOLLOW PRINTED INSTRUCTIONS!
DON’T FOLLOW THE INSTRUCTIONS ON THE BOX!!! It says recommended torque is 42 lb/ft. You know what happened at 32lb/ft? One of bolts broke! And I was lucky there was long enough piece sticking out to remove it without drilling out! Check photos.
✓ VERIFIED
Feb 21, 2022
Fits well!
✓ VERIFIED
Sep 10, 2021
Quality part great service and got it ahead of time great place
✓ VERIFIED
Jun 7, 2021
No leaks!!<br />Ordering was a breeze. Shipping was fast and I live way out in the middle of the Pacific Ocean, Hawaii. Price was much better than competition.
✓ VERIFIED
Nov 1, 2020
Great gaskets. Bike has been running great ever since I installed these last week, about 270 miles on em, no issues
