21423489 Starter Motor 24v 5.0kw | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta 24V 5.0kW D4/D6 Marine Starter Motor - Part Number: 21423489

Genuine 24-volt 5.0kW starter motor for Volvo Penta D4 and D6 marine diesel engines. It is associated with earlier Volvo reference 874674 and Mitsubishi starter family M8T62879.

⚙️ Key Features

• 24V electrical system

• Rated output: 5.0 kW

• D4/D6 marine diesel application

• High-torque reduction-drive construction

• Mitsubishi manufacturer cross-reference

• Not interchangeable with 12V starter 21423488

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 21423489 - Current 24V OEM starter reference

• 874674 - Earlier related Volvo starter reference

OEM / Related Numbers:

• 21423489

• 874674

• 3594618 - Related Volvo starter reference

• Mitsubishi M8T62879

Aftermarket / Verified Equivalents:

• Mitsubishi Electric: M8T62879

🚤 Compatibility

Confirmed engine family:

• Volvo Penta D4 marine diesel engines using the 24V starter configuration

• Volvo Penta D6 marine diesel engines using the 24V starter configuration

Specification:

• Voltage: 24V

• Output: 5.0 kW

• Confirm engine suffix, mounting flange, pinion, terminal orientation and serial number

🔌 Function

The starter draws power from the 24V battery system and supplies the cranking torque required to start the high-compression diesel engine.

Common signs of failure:

• No crank or intermittent cranking

• Slow cranking

• Solenoid clicks without motor rotation

• Grinding or pinion engagement noise

• Starter remains engaged

• Excess current draw or overheated cables

📦 Condition

• Genuine Volvo Penta part

• Brand new

• Supplied in original or equivalent packaging