Home / Champion 404 Copper Plus Spark Plug RN12YC - 16 Pack
Champion 404 Copper Plus Spark Plug RN12YC - 16 Pack
$65.77
Free shipping on all orders.
Qty In Stock: 20
The Champion 404 Copper Plus Spark Plug RN12YC 16 Pack is designed for dependable ignition and efficient combustion, delivering smooth engine performance and reliable starts for automotive, small engine, and general replacement applications. Built for consistent operation and convenient replacement, this 16-pack helps support everyday engine maintenance with Champion Copper Plus construction and dependable spark quality.
Features & Benefits:
🔧 Includes 16 Champion RN12YC Copper Plus spark plugs for convenient multi-unit replacement
🔧 Copper core center electrode helps improve heat dissipation and conductivity
🔧 Resistor design supports reduced radio frequency interference and steady ignition
🔧 Durable construction helps resist wear for dependable long-term performance
Specifications:
Brand & Part Number: Champion 404 (RN12YC)
Quantity: 16 Pack
Product Type: Copper Plus Spark Plug
Application: Automotive, small engine, and general replacement use
Electrode: Copper Core
Thread Size: 14mm
Reach: 19mm (3/4 in)
Hex Size: 5/8 in (16mm)
Heat Range: 12
Seat Type: Gasket
Resistor: Yes
Choose Champion RN12YC Copper Plus spark plugs for reliable performance, convenient replacement, and trusted quality—order this 16 pack today!
Shipping Info
Free shipping on every US order. In-stock parts typically ship within 1 business day from Texas.
Returns
30-day returns on unused parts in original packaging. Wrong or defective items are replaced or refunded. See the return policy.
How do I confirm this part fits?
Match the brand and part number to your vehicle, or use the Parts Finder on the homepage. Contact us before ordering if you are unsure.
Are these parts new?
Yes. TXN Supply Co sells new parts from trusted OEM-quality brands — not remanufactured cores.
How fast will my order ship?
In-stock orders ship within 1 business day. Delivery time depends on your ZIP; most US addresses arrive in 2–5 business days.
What is your return policy?
Unused items can be returned within 30 days in original packaging. Customer-initiated returns may include a restocking fee and return shipping.
