Champion 803C Conventional Spark Plug Small Engine

Product Description

The CHAMPION 803C is a conventional spark plug engineered for small engine applications. It features nickel alloy electrodes paired with a copper core center electrode, a design that promotes increased electrical conductivity and more effective heat dissipation during combustion. This plug is a standard-gap, non-resistor style replacement suited for routine maintenance on small four-cycle and two-cycle engines. Small engine technicians, outdoor power equipment service pros, and experienced DIYers install this part during tune-ups or when diagnosing ignition performance issues.

The 803C is appropriate for small engine applications including lawn mowers, generators, pressure washers, and similar outdoor power equipment. The copper core construction helps maintain consistent spark performance across varying load conditions. This plug ships individually on a card (sold as a single unit), making it practical for single-unit service calls or low-volume bench stock replenishment.

Key Features

• Nickel alloy electrodes for reliable ignition and wear resistance
• Copper core center electrode improves electrical conductivity
• Copper core design aids heat transfer and thermal control
• Conventional construction compatible with standard small engine ignition systems
• Sold individually on a card, minimum order of one unit

Compatibility

Designed as an OEM-style replacement spark plug for small four-cycle and two-cycle engines commonly found in outdoor power equipment.

Installation Notes

Spark plug replacement on small engines is performed by qualified small engine technicians or experienced service personnel. Always stop the engine completely and allow it to cool before removing the plug. Use a proper spark plug socket and torque wrench to seat the plug to the engine manufacturer's specification found in the equipment service manual. Inspect the plug boot and ignition wire condition before reinstalling.