Product Description
Copper Core Spark Plug is available now from Knobtown Cycle, your Kansas City motorcycle parts specialists.
Key Features
- Copper-glass seal bonds insulator, terminal post center electrode together; assures full required voltage at spark gap; gas-tight seal (100% leak proof)
- Multi-rib insulator reduces danger of “flash-over”
- One-piece terminal post adds strength
- Resistor reduces radio frequency interference (RFI) and electrode erosion
- Cold-formed steel shell precision rolled threads
- Full copper core electrode provides better performance in all conditions
- Verify all cross reference listings before purchase
Product Specifications
- Part Number: 4-4092
- Brand: Autolite
- Weight: 0.1 lbs
- UPC: 009100252760
Available at Knobtown Cycle
Order online or stop by our Kansas City location. Kansas City riders since 2004!
Part Locations
| Location |
Available |
| Ashley (IN) |
3 |
| Elizabethtown (PA) |
0 |
| Boise (ID) |
3 |
| Midway (GA) |
6 |
| Fresno (CA) |
0 |
| Jessup (MD) |
0 |
| Midlothian (VA) |
4 |
| National Total |
16 |
Stock levels last updated: March 8, 2026 5:04 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.
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