37500-PNB-003 Honda Crank Sensor | Genuine Used Part

🔧 Product Description

Genuine Used Honda Marine Crankshaft Position Sensor - Part Number: 37500-PNB-003

A genuine pre-owned Honda crankshaft-position sensor used across selected Honda Marine four-stroke outboards.

The sensor detects the passage of the crankshaft pulser or reluctor features and sends engine-speed and crank-angle information to the engine-control module.

⚙️ Key Features

• Genuine Honda used sensor
• Correct OEM part number 37500-PNB-003
• OEM description: Sensor Assembly, Crank
• Used across several Honda Marine engine families
• Provides crankshaft speed and position data
• Recmar and aftermarket replacements available

🚤 Compatibility

Commonly used on selected

• Honda BF60A
• Honda BF75D
• Honda BF80A
• Honda BF90D
• Honda BF100A
• Honda BF115D
• Honda BF135A
• Honda BF150A
• Honda BF175D
• Honda BF200D
• Honda BF225D
• Honda BF250D
• Additional Honda engines whose electrical diagram specifies 37500-PNB-003
• Horsepower Range: Selected 60HP - 250HP applications
• Engine Type: Electronic fuel-injected four-stroke
• Fitment Control: Engine suffix and serial number

Important fitment note

• Not every Honda engine between 60HP and 250HP uses this sensor.
• Confirm the original sensor number and connector.
• Check whether the diagnostic fault refers to the crank sensor, cam sensor, pulser plate or wiring.

🔌 Function

The sensor generates a signal as the crankshaft pulser passes its sensing element.

The ECM uses this signal for ignition timing, fuel-injection timing, engine-speed calculation and starting control.

⚠️ Common Signs of Failure

• Engine cranks but will not start
• Intermittent stalling
• Loss of ignition or injector command
• Tachometer signal is erratic
• Crankshaft-position fault code
• Engine stops when warm
• Damaged connector or wiring
• Metal contamination on the sensor tip
• Incorrect sensor clearance

🛠️ Service Notes

Recommended checks before installation

• Confirm the connector and wire length
• Inspect the pulser plate
• Check the sensor air gap
• Test supply, ground and signal circuits
• Inspect the harness for chafing
• Clear fault codes and verify engine-speed data after installation

🔄 Supersession & Cross Reference

OEM Supersession Chain

• No verified later Honda supersession identified

OEM / Related Numbers

• 37500-PNB-003
• 37500PNB003
• OEM Description: Sensor Assembly, Crank
• Related camshaft sensor: 37510-PNB-003
• Crank-pulser plate varies by engine model

Aftermarket / Verified Equivalents

• Recmar: REC37500-PNB-003
• Sierra-related replacement: 18-25200
• Aftermarket Honda crankshaft-position sensor

📦 Condition

• Genuine Honda used part
• Pre-owned electronic sensor
• Cosmetic marks and connector wear may be present
• Electrical testing before installation is recommended
• Supplied in protective or equivalent packaging