12 V 115 A marine alternator for Volvo Penta D1, D2, D4 and D6 engines – replaces OEM 21697753, 23380410, 23892930, 3587616, 3803650, 3817662, 874502.

Alternator Volvo Penta D1 D2 D4 D6 – 12 V 115 A (Replaces 21697753, 23380410, 23892930, 3587616, 3803650, 3817662, 874502)

259.95

Condition

OEM or Aftermarket

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Description

Alternator Volvo Penta D1 / D2 / D4 / D6 – 12 V 115 A Marine Replacement

The Alternator Volvo Penta D1 / D2 / D4 / D6 – 12 V 115 A is a genuine-fit marine alternator engineered to replace factory-installed units on Volvo Penta D-series diesel engines. Delivering 115 amps of steady charging output, it ensures reliable battery performance and power supply to all onboard electronics, even under heavy marine loads.

Manufactured to OEM standards, this alternator offers full plug-and-play compatibility with original brackets, pulleys, and electrical connectors—allowing quick, no-modification installation. Its corrosion-resistant housing and precision-balanced rotor guarantee smooth, low-vibration operation in saltwater environments.


⚙️ Electrical Specifications

  • Voltage: 12 V – 14 V

  • Output Current: 115 A

  • W Connection: Yes (for tachometer signal)


🔩 Physical Specifications

  • Freewheel Pulley: No

  • Pulley Diameter: 62 mm (flat pulley)

  • Pulley Type: 6 PK (six-rib belt)

  • B+ Terminal: M8

  • Mounting Holes: 3

  • Rotation Direction: Clockwise (CW)


🚤 Compatible with Volvo Penta Engines

  • D1 Series: D1-13F, D1-20F, D1-30F

  • D2 Series: D2-40F, D2-50F, D2-55F, D2-60F, D2-75F

  • D4 Series: All D4 models

  • D6 Series: All D6 models


🔧 Replaces the Following Volvo Penta OEM Part Numbers

  • 21697753

  • 23380410

  • 23892930

  • 3587616

  • 3803650

  • 3817662

  • 874502


Features & Benefits

✅ Direct OEM replacement – fits existing mounts and connectors
✅ High-efficiency 115 A output for modern electrical systems
✅ Corrosion-resistant marine housing for long life
✅ Smooth, low-vibration operation
✅ Includes W-terminal for tachometer function
✅ Precision-balanced for consistent performance


🛠️ Installation Notes

  • Check belt alignment and tension after installation

  • Reuse original wiring and hardware where possible

  • Verify correct polarity and secure all electrical connections


Applications

Ideal for Volvo Penta D1–D6 series diesel engines in both leisure and commercial vessels. Suitable for use in harsh marine environments where reliability and stable charging are critical.

Additional information
Weight 7 kg
Condition

OEM or Aftermarket

Model

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