Champion 502 Copper Plus Spark Plug D21 D-21 - 1 Pack

The Champion 502 Copper Plus Spark Plug (D21/D-21) is designed to provide reliable ignition, smooth engine operation, and efficient combustion. Featuring a copper core and nickel alloy electrode, it ensures strong spark, optimal heat dissipation, and resistance to fouling. Ideal for automotive and small engine applications, the D21 offers dependable cold starts, improved fuel efficiency, and long-lasting performance for a variety of engines.

Features & Benefits:

🔧 Copper core ensures strong spark and effective heat dissipation

🔧 Nickel alloy electrode resists fouling, corrosion, and wear

🔧 Pre-gapped for easy and precise installation

🔧 Provides smooth idle and reliable cold-start performance

Specifications:

Brand & Part Number: Champion 502 (D21/D-21)

Material: Copper Core with Nickel Alloy Electrode

Thread Size: 14mm

Reach: 0.46 in. (11.7mm)

Gap: Pre-gapped (~0.035 in.)

Ensure optimal engine performance and reliable ignition with Champion 502 Copper Plus Spark Plugs!

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