- Shop
- /
- Ignition
- /
- Secondary Ignition
- /
- Copper Plus Spark Plug RC12LYC

Copper Plus Spark Plug RC12LYCCHAMPIONPart # 412
Pack Size: 4

Ships in 24 hours
50 In Stock
Ships in 24 hours
50 In Stock
Have a Question? Ask a Specialist

All parts come with easy returns, full warranty and money back guarantee.
Built on trust. Stocked and shipped from our U.S. distributors.
Learn MoreCHAMPION 412 Spark Plug Details:
Dependable performance. This Champion® spark plug features a copper core electrode that provides increased conductivity and heat control for good overall wear.
Copper Plus - Dependable Performance and Durability
Copper core center electrode allows for accurate control of heat range for longer life
Superior corrosion resistance
Built to ISO and SAE standards for proven performance
Warranty
CHAMPION 412 Spark Plug Product Details:
| Plug Type | RC12LYC |
| Seat Type | Flat |
| Hex Size | 0.625 |
| Hex Size | 15.880 |
| Hex Type | Hex |
| 557 | 0.551 |
| 557 | 14.000 |
| Reach | 0.75 |
| Insulator Height | 0.29 |
| Center Electrode Tip Material | Copper |
| Ground Electrode Core Material | Nickel |
| Ground Electrode Quantity | 1 |
| Resistor Type | Yes |
| Manufacturer Heat Range | 12 |
| Electrical Terminal Type | Non-Removable Nut |
| Ground Electrode Tip Material | Nickel |
| Center Electrode Design | Standard |
| Indexed | No |
| Part Description | Spark Plug |
| Washer(s) Included | Yes |
| Washer Type | Crush |
| Classification | Champion Copper Plus |
| Grade Type | Standard Replacement |
| Pre-Gap Size | 0.89 |
| Pre-Gap Size | 0.035 |
| Subject to Prop 65 (Yes/No) | No |
CHAMPION 412 Spark Plug Packaging:
| Weight | 0.12 PG |
| Dimensional | 0.0001 PG |
| Merchandising height | 0.83 IN |
| Merchandising width | 0.93 IN |
| Merchandising length | 3.75 IN |
| Shipping height | 0.83 IN |
| Shipping width | 0.93 IN |
| Shipping length | 3.75 IN |
$7.99

Warranty
Warranty
12 month/24K Miles
QTY
Have a Question? Ask a Specialist

All parts come with easy returns, full warranty and money back guarantee.
Built on trust. Stocked and shipped from our U.S. distributors.
Learn MoreCHAMPION 412 Spark Plug Details:
Dependable performance. This Champion® spark plug features a copper core electrode that provides increased conductivity and heat control for good overall wear.
Copper Plus - Dependable Performance and Durability
Copper core center electrode allows for accurate control of heat range for longer life
Superior corrosion resistance
Built to ISO and SAE standards for proven performance
CHAMPION 412 Spark Plug Product Details:
| Plug Type | RC12LYC |
| Seat Type | Flat |
| Hex Size | 0.625 |
| Hex Size | 15.880 |
| Hex Type | Hex |
| 557 | 0.551 |
| 557 | 14.000 |
| Reach | 0.75 |
| Insulator Height | 0.29 |
| Center Electrode Tip Material | Copper |
| Ground Electrode Core Material | Nickel |
| Ground Electrode Quantity | 1 |
| Resistor Type | Yes |
| Manufacturer Heat Range | 12 |
| Electrical Terminal Type | Non-Removable Nut |
| Ground Electrode Tip Material | Nickel |
| Center Electrode Design | Standard |
| Indexed | No |
| Part Description | Spark Plug |
| Washer(s) Included | Yes |
| Washer Type | Crush |
| Classification | Champion Copper Plus |
| Grade Type | Standard Replacement |
| Pre-Gap Size | 0.89 |
| Pre-Gap Size | 0.035 |
| Subject to Prop 65 (Yes/No) | No |
CHAMPION 412 Spark Plug Packaging:
| Weight | 0.12 PG |
| Dimensional | 0.0001 PG |
| Merchandising height | 0.83 IN |
| Merchandising width | 0.93 IN |
| Merchandising length | 3.75 IN |
| Shipping height | 0.83 IN |
| Shipping width | 0.93 IN |
| Shipping length | 3.75 IN |
Our Parts
Your mechanic’s suppliers are our suppliers. Our parts come from the same trusted distributors that supply professional shops nationwide. That means factory-fresh OEM and premium aftermarket parts from authorized channels only. Every order ships from U.S. warehouses.
We partner exclusively with reputable U.S. companies so you can buy with confidence. Every part is new and original from the manufacturer, covered by full warranties, plus our money-back guarantee.
FAQ
Genuine only. We source through the largest U.S. distributors that supply professional shops nationwide. Parts are new and original from the manufacturer, from authorized channels only. No marketplace sellers. No gray imports.
Buy With Confidence
Massive Selection:
Access 400+ trusted brands and thousands of parts—if it fits your vehicle, we’ve got it.

Lightning-Fast Shipping:
Get back on the road sooner with same-day or next-day shipping on most orders.

Expert Support, Anytime:
Our team of real mechanics and parts pros delivers immediately.

Peace-of-Mind Warranty:
Every part is backed by our industry-leading 12 month 24,000 mile warranty.
All your favorite brands in one place




















+ 400 more

The Smarter Way to Get Parts
Partnered with 400+ global suppliers, offering 1 million+ parts with same or next day shipping, and backed by a 12-month / 24,000-mile warranty—HowToo makes getting the right part fast, reliable, and hassle-free. Expert support and install guidance included, every time.
$7.99

Warranty
Warranty
12 month/24K Miles
QTY
Have a Question? Ask a Specialist