Champion 821 Copper Plus Spark Plug 821M L77JC4 - 6 Pack

The Champion 821 Copper Plus Spark Plug (821M L77JC4) is designed for reliable ignition, efficient combustion, and smooth engine operation. Featuring a copper core and nickel alloy electrode, it ensures consistent spark, optimal heat dissipation, and resistance to fouling. Ideal for automotive and small engine applications, the L77JC4 provides dependable cold starts, improved fuel efficiency, and long-lasting performance across a variety of vehicles and equipment.

Features & Benefits:

🔧 Copper core ensures strong spark and optimal heat dissipation

🔧 Nickel alloy electrode resists fouling, corrosion, and wear

🔧 Pre-gapped for quick and accurate installation

🔧 Provides smooth idle and reliable cold-start performance

Specifications:

Brand & Part Number: Champion 821 (L77JC4)

Material: Copper Core with Nickel Alloy Electrode

Thread Size: 14mm

Reach: 0.46 in. (11.7mm)

Gap: Pre-gapped (~0.030 in.)

Ensure reliable ignition and optimal engine performance with Champion 821 Copper Plus Spark Plugs!

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