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โก Ignite your ride with Arnold Champion โ where power meets precision!
The Arnold Champion 3121-C5-0031 Spark Plug RC12YC is a high-performance ignition component designed for 4-stroke motorcycles. Featuring a durable copper alloy core and ceramic top insulator, it ensures reliable spark delivery and optimal heat management. Lightweight and precision-engineered in the UK, this spark plug enhances engine efficiency and longevity, making it a trusted choice for riders seeking consistent power and smooth performance.




| ASIN | B00C1WFYIS |
| Best Sellers Rank | 82,487 in Automotive ( See Top 100 in Automotive ) 483 in Car Spark Plugs |
| Brand Name | ARNOLD |
| Compatible with Vehicle Type | Motorcycle |
| Core Material | Copper Alloy |
| Country Of Origin | United Kingdom |
| Customer Reviews | 4.6 4.6 out of 5 stars (402) |
| Global Trade Identification Number | 04047427522230 |
| Included Components | Spark plug |
| Item Type Name | ARNOLD - Champion spark plug RC12YC for 4-stroke engine devices; 3121-C5-0031 |
| Item Weight | 0.05 Kilograms |
| Manufacturer | Arnold |
| Manufacturer Part Number | 3121-C5-0031 |
| Model Number | 3121-C5-0031 |
| OEM Equivalent Part Number | RC12YC |
| Thread Size | 14mm |
| Top Material Type | Ceramic |
| Unit Count | 1.0 count |
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