This 12V 150A alternator is an aftermarket replacement for Volvo Penta D3-series marine diesel engines. It cross-references Volvo Penta OEM alternator part number 31419556 (also referenced as 30659131 and 30667118) and is supplied under Recmar reference REC31419556. When matched correctly, it is intended to restore reliable battery charging for D3 installations with higher onboard electrical demand.

Before ordering: fitment can vary by engine variant and serial number. Confirm the Volvo Penta part number on your existing alternator and match the reference numbers below.

• Part type: Alternator
• Voltage / Output: 12V, 150A
• Engine fitment: Volvo Penta D3-110 to D3-220 (D3 series)
• Pulley: 5-rib serpentine (5PK)
• OEM cross-references: Volvo Penta 31419556, 30659131, 30667118
• Aftermarket reference: Recmar REC31419556
• Notes: Use the part number on the unit currently fitted (and engine details) to confirm compatibility before purchase.

Fitment varies by engine version—always confirm the correct match by OEM/part number and engine model before ordering.