Replacement Inboard Ignition Coil - Compatible with MerCruiser Thunderbolt IV and V Ignition Systems with HEI - Replaces 18-5438, 392-805570A2, 392-7803A4, 392-805570A1, 72115, 40511 electronics_update_2023 Specially designed to maintain proper

Specially designed to maintain proper air pressure

It will automatically cut off the power supply

Incompatible car brands: for Jeep/ Peugeot /Citroen /Fiat /Renault /DS /Lamborghini /SIMCA /Suzuki

EASY INSTALL: TRICO washer fluid pump eliminates the need for strenuous labor

Replacement Inboard Ignition Coil - Compatible with MerCruiser Thunderbolt IV and V Ignition Systems with HEI - Replaces 18-5438, 392-805570A2, 392-7803A4, 392-805570A1, 72115, 40511 electronics_update_2023 Specially designed to maintain properReplacement Inboard Ignition Coil Compatible with MerCruiser Thunderbolt IV and V Ignition Systems with HEI Replaces 18 5438, 392 805570A2, 392 7803A4, 392 805570A1, 72115, 40511 Product Features Replacement Inboard Marine Engine Ignition Coil The ignition coils or ignition coil plug provides spark for your engine. Over time the factory ignition coil packs can fail, leading to hard starting, losing power when the engine is hot, or your boat may run