Champion 543 Spark Plug Type D89D Pack of 8

Product Description

The CHAMPION 543 is a Type D89D spark plug sold in a pack of 8, designed for reliable ignition in engines where this plug type is specified. The triple seal assembly addresses failure caused by heat stress and mechanically induced stress, making it a durable choice for demanding service conditions. A copper core center electrode supports efficient heat transfer and consistent spark performance. Licensed technicians and service professionals working on equipment that calls for this plug type will find the 543 a direct-fit replacement solution.

The CHAMPION 543 is appropriate for applications specifying the Type D89D plug configuration. Sold in an 8-count pack, it suits service operations performing multi-cylinder engine maintenance or stocking replacement inventory. Common install scenarios include scheduled tune-ups and engine overhauls where the full plug set is replaced at once.

Key Features

• Triple seal assembly resists failure from heat-induced and mechanically induced stress
• Copper core center electrode promotes efficient heat dissipation and stable spark output
• Type D89D configuration for fitment in compatible engine applications
• Sold in a pack of 8 for full-set replacement or shop inventory stocking

Compatibility

Designed as a direct-style replacement for engines and equipment specifying the Type D89D spark plug configuration.

Installation Notes

Spark plug replacement should be performed by a qualified technician familiar with the engine manufacturer's service procedures. Always disconnect the ignition source and allow the engine to cool completely before removing plugs. Use an appropriate spark plug socket and torque wrench, following the engine manufacturer's specified torque value. Inspect plug threads and seat surfaces before installation to avoid cross-threading or improper seating.

Technical Specifications

• Plug Type: D89D
• Center Electrode: Copper core
• Pack Quantity: 8

Standard Information

• Brand: CHAMPION
• Manufacturer Part Number: 543