1 Pack Champion Spark Plug - For John Deere Walk-Behind Mower JS40 M78543

The Champion 71 Spark Plug is a heavy-duty, copper-core plug engineered for consistent starts, strong combustion, and long-lasting performance in John Deere lawn mowers, tractors, and other small engine equipment.

Features & Benefits:

🔧 Copper core enhances heat control and spark efficiency🔧 Resists fouling under extended engine run times🔧 Rugged design withstands vibration and heavy-duty use🔧 Ideal for riding mowers, garden tractors, and zero-turn units

Specifications:

Brand & Part Number: Champion 71Material: CopperThread Size: 14mmReach: 9.5mm (3/8 in.)Hex Size: 13/16 in. (20.6mm)Seat Type: GasketResistor: NoGap: 0.030 in. (0.76mm)

Use Champion 71 to keep your John Deere mower starting strong and cutting clean—order now!