Mercury Distributor Sensor Ignition Timing Component Composite & Stainless Steel 892150K02. Overview. If you've ever turned the key and felt your engine come to life without hesitation, you know how satisfying that moment can be. The Mercury 892150K02 Distributor Sensor plays a quiet but essential role in making that happen. It's the part you rarely see but always rely on - the kind of component that keeps your MerCruiser V6 or V8 firing with the rhythm and strength you expect. Whether you're ea