20412736 Voltage Regulator | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta Earlier 28 V Alternator Voltage Regulator - Part Number: 20412736

Genuine Volvo Penta electronic voltage regulator for the 28 V, 35 A charging-system alternator family. This is the earlier regulator reference replaced by 20797555 where specified.

⚙️ Key Features

• Controls alternator field current and charging voltage

• Designed for nominal 24 V electrical systems

• Used with 28 V, 35 A alternators

• Requires alternator-number verification

• Electronic component is not repaired internally

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 20797555 → Replaces 20412736 where specified

• 20412736 - earlier regulator reference

OEM / Related Numbers:

• 20412735 - related alternator

• 20584337 - later 28 V 35 A alternator

• 3803512 / 3803969 - exchange alternator references

• 20797555 - later regulator reference

Aftermarket / Verified Equivalents:

• No aftermarket equivalent

🚤 Compatibility

Commonly used on:

• Volvo Penta D5 / D7 28 V, 35 A charging systems

Typically suits:

• Engine / equipment models:

• TAD530GE

• TAD531GE

• TAD532GE

• TAD730GE

• TAD731GE

• Engine Type: Volvo Penta 5- and 7-litre industrial diesel

• Year / Serial Range: Alternator model and engine serial-number dependent

🔌 Function

Regulates alternator output near the specified 28 V charging level by controlling field current.

Common signs of failure:

• Battery not charging

• Charging voltage too high or too low

• Charge warning lamp remaining on

• Battery boiling or repeated discharge

• Intermittent alternator output

📦 Condition

• Genuine Volvo Penta part

• Brand new

• Supplied in original or equivalent packaging