3849338 Engine Speed Sensor | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta engine speed sensor from the Marine Propulsion group, weighing 0.898 kg, the heavier of the two speed sensors in this run. No engine applications are listed against it, so order by part number against parts list for your engine. The published weight is high for a sensor on its own, so check what the listing includes before ordering.

⚙️ Key Features

• 0.898 kg
• Marine Propulsion group
• Heavier of the two speed sensors in this run
• Order by part number - no fitment list is published
• No longer in the Volvo Penta assortment

🔌 Function

Reads the rotating reference on the engine and sends the speed signal the control and instrument systems work from.

⚠️ Common Signs of Failure

• Tachometer reading erratically, dropping out or reading zero
• Engine speed signal lost, with a warning or a limp-home condition
• Hard starting or a stall where the speed signal is used for control
• Sensor tip or its face damaged, or packed with metal debris
• Corroded connector or a chafed sensor lead

🛠️ Service Notes

• The other engine speed sensor here, 3849339, is published at 0.528 kg - the two differ noticeably in weight, so check the illustration to make sure which one your installation uses
• Check the air gap and the condition of the sensing surface, and clean debris from the tip before condemning the sensor
• Check the connector and the lead for corrosion or chafe first - most speed signal faults are wiring, not the sensor

📦 Condition

• Genuine Volvo Penta part
• Brand new
• Supplied in original or equivalent packaging