Champion Massive Spark Plug, 2-Prong, 18mm Thread, Shielded, 3/4-20 Inches thread, Silver

RHM40E Massive Piston Spark Plug is a high-performance spark plug designed to deliver exceptional ignition and reliability. With its 2-prong design, this spark plug ensures optimal conductivity and durability for the engine. RHM40E spark plug is equipped with a shielded 3/4-20 inches thread, this spark plug offers a secure and reliable fit, preventing any leakage or loss of spark energy. It is built to withstand extreme temperatures and pressures, providing long-lasting performance and reliability.

FEATURES
• Two layers of corrosion protection. Nickel plating and high temperature epoxy paint
• Fired glass seal provides positive retention of center wire and prevents gas leakage
• Nickel alloy electrodes provide excellent resistance to spark and heat erosion
• Plated threads prevent seizing

BENEFITS
• Fired in suppressor seal resistor prevents wear from voltage drain for prolonged plug life
• Ceramic insulator has excellent thermal properties that resist cracking

SPECIFICATIONS
• Thread size: 18mm
•  Reach: 1/2 Inches /1.27cm
•  Shielded/Unshielded: Shielded
•  Shielding thread: 3/4 Inches - 20
•  Standard electrode: Two Prong
•  Plug gap: .016 Inches -.021 Inches /0.41-0.53 mm