21124849 Sensor | Genuine Volvo Penta Part

🔧 Product Description

Genuine crankshaft-position sensor for selected Volvo Penta 4.3-litre V6 petrol engines using the corresponding metal-distributor and timing-cover arrangement. It supplies crankshaft speed and position data to the engine-control module.

🚤 Compatibility

Typically suits:

• Volvo Penta 4.3OSi-J
• Volvo Penta 4.3OSi-JF
• Volvo Penta 4.3Gi-200-R
• Volvo Penta 4.3GL-J
• Volvo Penta 4.3GL-JF
• Volvo Penta 4.3GL-P
• Volvo Penta 4.3GXi-225-R
• Volvo Penta 4.3GXiE-225-R
• Volvo Penta 4.3GXiE-M
• Volvo Penta 4.3GXi-P
• Volvo Penta 4.3GXiE-P
• Volvo Penta 4.3GXi-Q
• Volvo Penta 4.3GXiE-Q
• Volvo Penta 4.3GXi-J
• Volvo Penta 4.3GXi-JF
• Volvo Penta V6-200-A
• Volvo Penta V6-225-A
• Volvo Penta V6-225-E-A

• Engine Family: V
• HP Range: 200-225 HP

⚙️ Key Features

• 4.3L V6 crankshaft-position sensor
• Used with the applicable metal-distributor/timing-cover configuration
• Provides engine-speed and crank-position data
• Supports ignition and fuel-injection timing
• Verified HSR Marine Parts equivalent

🔌 Function

The sensor detects crankshaft position and speed so the engine-control module can schedule ignition and fuel-injection events.

⚠️ Common Signs of Failure

• Engine cranks but does not start
• Engine stalls when hot
• Intermittent loss of ignition
• Tachometer signal dropping suddenly
• Misfire or poor acceleration
• Crankshaft-position fault code
• No engine-speed signal while cranking

🛠️ Service Notes

• Note how the sensor sits and how its lead is routed before removing it, and support the harness so refitting does not leave the cable strained or rubbing
• Turn the sensor with a spanner on its hex only — never lever or twist it by the connector body or the wiring, which breaks the internal joint even when the sensor looks undamaged
• Renew the O-ring or sealing washer where one is fitted, and do not add thread sealant unless the manual for your engine specifies it; sealant on the threads can break the earth path of a sensor that earths through its body
• Tighten to the figure in the workshop manual for your engine — overtightening distorts the housing and shifts or destroys the sensing element
• Make sure the connector is clean, dry and fully latched home and check the pins for corrosion and spread — a poor connector accounts for a great many faults blamed on the sensor — then run the engine and confirm the reading or warning lamp behaves sensibly before returning the boat to service

🔄 Supersession & Cross Reference

Aftermarket / Verified Equivalents

• HSR Marine Parts: 905-0123

📦 Condition

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