3840309 Rectifier | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta rectifier for alternator 3803845, from the Alternator, Charging, Electric Motor, Electric Drives group, weighing 0.191 kg and listed for 36 applications on D series engines. It is specific to that alternator, so identify the alternator before ordering.

🚤 Compatibility

• Engine Family: D

Full model list at the end of this description.

⚙️ Key Features

• For alternator 3803845
• 0.191 kg
• 36 applications on D series engines
• Serviceable item within the alternator

🔌 Function

Converts the alternator's alternating output into the direct current the batteries and boat systems need.

⚠️ Common Signs of Failure

• No charge at all, or charge that collapses under load
• Batteries flat despite the alternator turning and the belt being tight
• Radio interference or a whine through the audio system
• Diodes discoloured, cracked or burnt on inspection
• Alternator running unusually hot

🛠️ Service Notes

• Confirm the alternator is 3803845 before ordering this rectifier
• Check the regulator, brushes and slip ring at the same time - one failure often follows another
• Never disconnect a battery with the engine running, as the voltage spike can destroy a new rectifier

📦 Condition

• Genuine Volvo Penta part
• Brand new
• Supplied in original or equivalent packaging

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta D11C1-A MP, D11C3-A MP, D11C2-A MP, D11C4-A MP, D11B3-A MP, D11B4-A MP, D11A-A, D11A-B, D11A-C, D11A-D, D11A-E, D11B2-A MP, D11A-C MP, D11A-D MP, D11A-E MP, D11B1-A MP
• Volvo Penta D9A2J, D9A2G, D9A2L MH, D9A2D, D9A2B, D9A2F, D9A2K, D9A2H, D9A2M MP, D9A2A, D9A2C, D9A2E
• Volvo Penta D12D-B MP, D12D-D MP, D12D-G MP, D12D-H MP
• Volvo Penta D8A5-A MH, D8A6-A MH, D8A3-A MP, D8A4-A MP