Home / Champion / Champion 843 Copper Plus Spark Plug CJ8 - 8 Pack
Champion
Champion 843 Copper Plus Spark Plug CJ8 - 8 Pack
Part number 843
$35.77
8-pack · $4.47 each · Free shipping
Free shipping on all orders.
Qty In Stock: 20
The Champion 843 Copper Plus Spark Plug CJ8 8 Pack is designed for dependable ignition, smooth engine performance, and long-lasting durability for small engines, outdoor power equipment, and lawn and garden applications. Built for reliable performance and convenient replacement, this item helps support consistent starts and efficient combustion with trusted quality and dependable operation.
Features & Benefits:
🔧 Includes 8 Champion CJ8 Copper Plus spark plugs for convenient replacement
🔧 Copper core construction helps support efficient heat transfer and reliable spark performance
🔧 Durable electrode design resists wear and fouling
🔧 Designed for consistent ignition and dependable engine operation
Specifications:
Brand & Part Number: Champion 843 (CJ8)
Quantity: 8 Pack
Product Type: Copper Plus Spark Plug
Application: Small engines, outdoor power equipment, lawn and garden
Thread Size: 14mm
Reach: 9.5mm (3/8 in)
Hex Size: 13/16 in
Heat Range: 8
Seat Type: Gasket
Series: Copper Plus
Choose Champion CJ8 Copper Plus spark plugs for reliable performance, convenient replacement, and trusted quality—order this 8 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.
