✓ 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: 68-9379
Cometic Evo Big Twin Starter Shaft Seal - Motor Shaft OIL Seal EVO 5/PK Oe#12053
$24.54
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Cometic EVO Big Twin starter shaft seal for V-twin motorcycle engines. This OEM-specification oil seal prevents leakage at the motor shaft starter junction and comes in a 5-pack for shops or multi-bike service.
Features
- 5-pack quantity
- OEM-specification starter shaft seal
- Motor shaft oil seal design
Specifications
- Brand: Cometic
- Manufacturer Part #: C9379
- Quantity: 5 per pack
- Weight: 0.07 lbs per unit
Fitment
Fits EVO Big Twin V-twin engines found in Harley-Davidson and Indian Motorcycle models.
Frequently Asked Questions
What does this seal do?
Prevents oil leakage where the starter shaft enters the motor. A worn seal can cause slow oil weeping around the starter area.
Why is this sold in a 5-pack?
Five units per pack — ideal for shops, fleet maintenance, or riders rebuilding multiple engines or keeping spares.
Will this fit Twin Cam or Milwaukee-Eight engines?
No — this seal is specific to EVO Big Twin engines. Twin Cam and M8 models use different starter shaft seal designs.
Is this an OEM Harley part?
No — Cometic manufactures this to OEM specification as a direct replacement for the factory seal.
| BRAND | Cometic |
| TYPE | Gaskets/Seals |
| SKU | 68-9379 |
| WEIGHT | 0.07 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.
