VOLVO STARTER KEY 3587072

Function and technical context

The starter key 3587072 is the electromechanical component that activates the ignition circuit in Volvo Penta marine engines, closing the electrical contact that allows the engine to start and power the auxiliary circuits of the control panel. It works within the boat's ignition and electrical management system, being the operator's entry point to safely start and stop the propeller. Its position on the dashboard exposes it to humidity, vibration and continuous cycles of use, factors typical of the marine environment that accelerate the wear of internal contacts. A failure in this key can completely prevent the engine from starting or cause short circuits in the control circuits, leaving the boat inoperative at any point during navigation. Its compatibility covers a very wide range of Volvo Penta series—from naturally aspirated diesel engines to high-power turbocharged engines—which makes it a high-turnover spare part for nautical workshops and shipowners.

When to replace this part?

The most common symptoms of wear on a marine starter key include difficulty turning the cylinder, lack of electrical response when turning the key, intermittent ignition, or inability to cut off the power supply when turning off the engine. As it is a component subjected to frequent use cycles and an environment of high humidity and salinity, it is recommended to inspect it during each seasonal maintenance, paying special attention to the electrical continuity of the contacts and the condition of the safety cylinder. Replacing the starter key preventively at the first signs of deterioration avoids being left without a starter at sea and eliminates the risk of secondary electrical faults in the control panel.

Compatible Volvo Engines

Equivalent manufacturer part numbers