SKU: CHPN4C
UPC: 037551000494
MPN: 803
The Champion 803 Spark Plug is a reliable copper-core ignition component specifically designed for small-displacement engines and light-duty applications. This non-resistor plug is ideal for those maintaining original equipment or refreshing aging ignition systems, providing dependable cold-start capability and stable combustion characteristics.
Featuring Champion's copper-plus electrode design, the 803 spark plug enhances thermal conductivity and ensures faster heat dissipation from the combustion chamber. With a 14 mm thread size and a reach of 0.75 inches, it allows for precision fitment in applications designed for this standard footprint.
Mechanics and DIY enthusiasts can rely on the 803 for small engines, lawnmowers, outboard motors, and specific light-duty applications where plug longevity and consistent firing are essential. Installation is straightforward—confirm your engine's thread size, reach, and seat type before ordering to avoid fouling or heat damage.
WARNING ⚠️ You must be 18 or older to purchase shotgun or rifle ammunition and 21 or older to purchase handgun ammunition and firearms. Please reference our requirements for ammunition orders to "restricted" states HERE. Always make sure you use the correct ammunition for your firearms. Ammo cannot be shipped to a PO Box. Please reference state & local laws before making a firearm or ammunition purchase.