✓ 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.
COMETIC
SKU: 68-10202
Cometic Milwaukee 8 Valve Stem Seals - Seal M8 8pk Oe#18100044 — Harley-Davidson Road King, Road King Special, Electra Glide Ultra Classic (2017-2019)
$26.19
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Cometic Milwaukee 8 valve stem seals for Harley-Davidson and Indian Motorcycle V-Twin engines. OEM-replacement spec seals that prevent oil weeping at the valve stem and maintain proper engine breathing.
Features
- 8-pack quantity
- Direct OEM replacement
- For Milwaukee-Eight (M8) engines
Specifications
- Brand: Cometic
- Manufacturer Part #: C10202
- OE Part #: 18100044
- Quantity: 8 per pack
- Length: 7 in
- Width: 6 in
- Height: 0.25 in
- Weight: 0.1 lbs
Fitment
Fits Harley-Davidson and Indian Motorcycle models equipped with Milwaukee-Eight (M8) engines.
Frequently Asked Questions
Will these fit Twin Cam or older Harley engines?
No — these seals are specific to Milwaukee-Eight (M8) engines. Twin Cam and earlier engines use different seal dimensions.
What does a valve stem seal do?
It prevents oil from seeping down the valve guide into the combustion chamber, which reduces blue smoke and maintains proper engine function.
Why is an 8-pack useful?
An M8 engine has eight valves total — one complete set for a full rebuild, plus spares for future maintenance.
Are these OEM-equivalent?
Yes — Cometic manufactures these to OEM specifications as a direct replacement for Harley and Indian original equipment.
| BRAND | Cometic |
| TYPE | Gaskets/Seals |
| SKU | 68-10202 |
| WEIGHT | 0.1 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
Oct 18, 2021
Great seals and gaskets do the job once when you use quality gaskets
✓ VERIFIED
Sep 26, 2019
Seal good and I haven't had any issues..
✓ VERIFIED
Jun 27, 2025
It worked like it was suppose to, delivery was quick. <br />Pleased.
✓ VERIFIED
Dec 19, 2023
Just what I needed
Needed these when changing out intake manifold. They worked perfect for my ‘03 sporty.
✓ 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.
