Thunderbolt Ignition→Sensor

Part # & Price	Description
BPI18-5116 $64.95	Sensor Pickup for Mercruiser Thunderbolt Electronic Ignition 87-861780A2 BPI18-5116 Ignition Sensor for Mercruiser Thunderbolt Electronic Ignition Systems. It is for all Mercruiser Thunderbolt Distributors with nut or bullet connections used on V6 & V8 applications. Replaces Merc. # 87-861780Q4, 87-861780A2 Your current sensor may only have two wires or terminals, this item has improved circuitry which incorporates a separate ground for improved performance and reliability. Replaces Ring terminal sensor or bullet end connectors. Troubleshoot This Part with these Instructions
SIE18-5116-1 $67.95	Sensor Pickup for Mercruiser Thunderbolt Electronic Ignition 87-861780A2 Ignition Sensor for Mercruiser Thunderbolt Electronic Ignition Systems. It is for all Mercruiser Thunderbolt Distributors with nut or bullet connections used on V6 & V8 applications. Replaces Merc. # 87-861780Q4, 87-861780A2 Your current sensor may only have two wires or terminals, this item has improved circuitry which incorporates a separate ground for improved performance and reliability. Replaces Ring terminal sensor or bullet end connectors. Troubleshoot This Part with these Instructions