PIER 24-38114 REC24-38114

Function and technical context

The spring is a critical precision component in the ignition system of Mercury, Mariner and MerCruiser engines. This element works in the ignition circuit, providing the voltage and control necessary to ensure the correct firing of the spark plugs in each engine cycle. Its operation is critical to maintaining efficient combustion and reliable starting, especially in marine applications where reliability is essential. A faulty spring can compromise ignition timing, causing loss of power, excessive fuel consumption and even intermittent failures while cruising.

When to replace this part?

Typical symptoms of a worn ignition spring include cold starting difficulties, progressive loss of power under load, and irregular fluctuations in idle speed. Although there is no fixed maintenance interval for this component, it is recommended to inspect it during each seasonal inspection and replace it if it shows signs of corrosion, weakening or loss of elasticity. Preventive replacement of the spring prevents it from becoming immobile in the water and ensures optimal operation throughout the entire boating season.

Engine Compatibility Table

Compatible Mercury Mariner Engines

Equivalent manufacturer part numbers