✓ VERIFIED
Apr 17, 2025
Gasket quality
Great gasket kit over delivered in the quality of the gasket set great job
COMETIC
SKU: 68-10179-2
Cometic Milwaukee 8 Rocker Box Assembly Gasket - M8 .020" RC 2pk Oe#25700372 — Harley-Davidson (2017-2019)
$25.13
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Cometic Milwaukee 8 rocker box assembly gasket, a genuine OEM-replacement seal designed for Harley-Davidson and Indian Motorcycle V-twin engines. This gasket maintains a reliable seal between the rocker box and cylinder head to prevent oil leakage.
Features
- 2-pack quantity
- .020" thickness for precise fitment
- OEM Part #25700372 equivalent
Specifications
- Brand: Cometic
- Manufacturer Part #: C10179-2
- Quantity: 2 per pack
- Length: 8.95 in
- Width: 10.1 in
- Height: 0.3 in
- Weight: 0.05 lbs
Fitment
Fits Milwaukee 8 (M8) rocker box assemblies on Harley-Davidson and Indian Motorcycle V-twin engines.
Frequently Asked Questions
What's included in this 2-pack?
Two rocker box assembly gaskets — one pair for a complete M8 engine rebuild or service.
Is this the same as OEM Harley part #25700372?
Yes — Cometic manufactures this gasket to OEM specifications as a direct replacement for Harley's factory part.
Do I need both gaskets at once?
Most rebuilds use one gasket per rocker box. The 2-pack lets you service both sides or keep a spare on hand.
Will this fit Indian Motorcycle M8 engines?
Yes — this gasket is compatible with all V-twin Milwaukee-Eight engines, including Indian Motorcycle models.
| BRAND | Cometic |
| TYPE | Gaskets/Seals |
| SKU | 68-10179-2 |
| WEIGHT | 0.05 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
