MerCruiser Shift Interrupter Neutral Kill Switch 49646A1 120hp 140hp 165hp Early Oil Senders Pumps and Remote Filters Pulley spins very well -

Pulley spins very well - Removed from a very clean engine

From a AQ-280 / AQ 280-DP (Which indicates 875183 but is commonly stamped 850304 which is the same for AQ 290 & AQ 275 units)

This is a stock photo you will receive a set like this in similar condition

Part Number 550430 Stamped on housing

0313636 / 313636 Plunger

MerCruiser Shift Interrupter Neutral Kill Switch 49646A1 120hp 140hp 165hp Early Oil Senders Pumps and Remote Filters Pulley spins very well -Item Details MerCruiser McGill Shift Interrupter Neutral Safety Shift Cut Out Kill Switch 49646A1 49646A2 This type of switch was mounted directly to the transom plate and the ends "plugged" into a terminal. Overall good condition Tested & working! Applications Generally found on Early MerCruiser Sterndrives where the ends of the plug went into a terminal rather than having a screw connection. 1960's early to mid 70's 120hp 2. 5L 4cyl 140hp 3. 0L 4cyl