Piston Kit
$ 48.19
Only 1 left in stock
Piston Kit
Part #: 187-40003
Namura quality guaranteed.
Available for ship to store.
Piston Kit
Product Specifications
| Weight | 0.6591 lbs |
|---|---|
| Dimensions | 3.85 × 3.18 × 3.18 in |
| Part Number | 187-40003 |
| MPN | NA-40003 |
| Brand | Namura |
| UPC | 758891085964 |
| Country of Origin | China (Taiwan) |
Product Description
Piston Kit is available now from Knobtown Cycle, your Kansas City motorcycle parts specialists.
Will not accept OEM rings and rings will not work on OEM piston
Product Specifications
- Part Number: 187-40003
- Brand: Namura
- Weight: 0.6591 lbs
- UPC: 758891085964
Available at Knobtown Cycle
Shop online or visit our Kansas City showroom. Fast shipping available on all orders! Free Ship to Store!
Part Locations
| Location | Available |
|---|---|
| Ashley (IN) | 1 |
| Elizabethtown (PA) | 0 |
| Boise (ID) | 0 |
| Midway (GA) | 0 |
| Fresno (CA) | 0 |
| Jessup (MD) | 0 |
| Midlothian (VA) | 0 |
| National Total | 1 |
Stock levels last updated: March 1, 2026 5:07 PM
Professional Installation Available
Knobtown Cycle offers professional installation services. Contact us via a service request to learn more.
Thank you for Shopping at Knobtown Cycle!
When you shop with us, you’re not just buying motorcycle parts — you’re supporting a small, family-run business rooted right here in the heartland of America. Every order helps us keep riders on the road and fuels our passion for serving the motorcycle community.
From all of us at Knobtown Cycle, thank you for choosing local and riding with us.
Product Reviews
Need help with installation? Our Service Department based in Kansas City, Missouri is here for you. Fill out a Service Request and lets get you rolling!

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