Champion 587 Spark Plug

Champion Copper Plus 587 Spark Plug

Champion Copper Plus 587 is a small engine spark plug built for dependable ignition performance and steady heat control. Its copper core electrode improves conductivity, while the nickel center and ground electrode materials support consistent wear characteristics in secondary ignition service.

For buyers searching for a Champion 587 spark plug, this Copper Plus H8C-style plug is a direct choice for small engine ignition maintenance and tune-up work. It is also cross-referenced to Hella H8, H9 for the same application.

Key Features

• Copper core electrode for improved conductivity and heat control
• Nickel center electrode tip and nickel ground electrode core material
• Pre-gapped at 0.025 in. / 0.64 mm
• Flat seat design with 14 mm thread diameter and 0.438 in. reach
• Non-resistor design with removable nut terminal
• Champion Copper Plus Small Engine classification
• Part number 587 for ignition service identification

Product Details

The Champion Copper Plus line focuses on practical ignition performance for small engine applications. This plug uses a copper core to help transfer heat efficiently, which supports stable operation under regular service conditions. The H8C plug type, 0.813 in. hex size, and flat seat configuration make it a straightforward replacement when the original specification calls for this style of spark plug. Search terms such as Champion 587 spark plug, H8C spark plug, and small engine ignition plug all point to this part.

Compatible With small engine ignition systems that specify Champion 587, H8C, or equivalent cross-reference numbers. If you are servicing equipment that calls for Champion 587, this plug provides the specified thread, reach, seat, and terminal style in one part.

Common Issues This Plug Addresses

• Hard starting caused by worn or fouled spark plugs
• Weak or inconsistent spark output in secondary ignition
• Rough running from degraded electrode condition
• Heat-related plug wear in small engine service
• Maintenance replacement for plugs specified as Champion 587

Installation Notes and Tips

Verify the required plug type, thread diameter, reach, seat style, and gap before installation. The pre-gap is listed at 0.025 in. / 0.64 mm, but final setup should always match the equipment manufacturer’s specification. Use the removable nut terminal only if your ignition lead requires that terminal style, and confirm the hex size allows proper socket access during service.

For fitment-based searches, use the exact application requirements rather than assuming universal interchange. This part is commonly searched as a Champion 587 spark plug for small engine tune-ups and ignition replacement.

Quality Assurance

Champion is a long-established ignition brand, and the Copper Plus line is built around copper-core conductivity and controlled heat transfer for dependable service. Part number 587 is manufactured to the listed specifications for secondary ignition replacement.