21959663 Volvo Penta Voltage Converter | Genuine Used Part

🔧 Product Description

Genuine Volvo Penta Voltage Converter / Start Booster - Part Number: 21959663

A genuine Volvo Penta voltage converter / start booster used in Volvo Penta marine diesel electrical systems. This unit is associated with Volvo Penta start-assist and voltage conversion applications and cross-references with earlier Volvo Penta 3842462 and 881778 references.

⚙️ Key Features

• Genuine Volvo Penta voltage converter / start booster

• Correct Volvo Penta part number 21959663

• Cross-references with Volvo Penta 3842462

• Related start booster type PB0935 / Volvo Penta 881778 family

• Used across Volvo Penta D-series diesel electrical installations where specified

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 21959663 current / later Volvo Penta voltage converter reference

• 3842462 earlier Volvo Penta start booster / voltage converter reference

• 881778 related Volvo Penta start booster reference

OEM / Related Numbers:

• 21959663

• 3842462

• 881778

• PB0935

• Related Volvo Penta electrical installation component

• Related D-series start / electrical supply system reference

Aftermarket / Verified Equivalents:

• No aftermarket equivalent

🚤 Compatibility

Commonly used on:

• Volvo Penta D-series marine diesel electrical systems using the 21959663 / 3842462 voltage converter family

Typically suits:

• Engine models:

• Volvo Penta D3 applications using voltage converter / start booster 21959663 or 3842462

• Volvo Penta D4 applications using voltage converter / start booster 21959663 or 3842462

• Volvo Penta D6 applications using voltage converter / start booster 21959663 or 3842462

• Volvo Penta D8 applications using voltage converter / start booster 21959663 or 3842462

• Volvo Penta D9 applications using voltage converter / start booster 21959663 or 3842462

• Volvo Penta D11 applications using voltage converter / start booster 21959663 or 3842462

• Volvo Penta D12 applications using voltage converter / start booster 21959663 or 3842462

• Volvo Penta D13 applications using voltage converter / start booster 21959663 or 3842462

• Volvo Penta D16 applications using voltage converter / start booster 21959663 or 3842462

• Volvo Penta D4 / D6 installations where the electrical system specifies the 3842462 / 21959663 start booster

• HP Range: dependent on the Volvo Penta D-series engine installation

• Engine Type: Volvo Penta marine diesel electrical / start-assist system

• Year Range: D-series installations using 21959663 / 3842462 where specified

• Fitment Note: match by Volvo Penta engine serial number, electrical installation diagram and vessel voltage configuration

🔌 Function

The voltage converter / start booster supports the engine electrical system by converting and stabilising voltage for starting, control-system supply or installation-specific electrical loads.

Common signs of failure:

• Low voltage fault at key-on or during cranking

• EVC or instrument reset during starting

• Intermittent electrical supply to engine controls

• No-start caused by voltage drop after battery and cable checks

• Heat damage, melting or burn marks on the converter body

• Blown fuse or repeated electrical supply fault

• Corrosion or loose terminals at the converter connections

📦 Condition

• Genuine used part

• Removed from running engine where applicable

• In good working condition unless otherwise stated