The Sierra 18-5273 Tune Up Kit is interchangeable with the following: GLM 71780, Mallory 9-29350, Mercury 805759T3, 805759Q3. Each Sierra product meets or exceeds the original equipment part it replaces. Contains 18-5431 Rotor Assembly, 18-5395 Distributor Cap.

OEM: OMC 582125

Rudder FeedbackWaterproof construction with transducer life rated to over 50 million rudder movements. It is suitable for vessels with rudderstock up to 75 mm (3") in diameter. It is mounted near the rudder shaft and connected to the tiller arm or quadrant.

OEM: MERCURY MARINE 805759T, 805759T 1