CATEngine Parts

314-7755 Automatic Voltage Regulator Avr — Cat 3306 3512

This Automatic Voltage Regulator (AVR) is a critical component that controls the output voltage of the generator, ensuring a stable and consistent electrical supply. It is designed with precise electronic components to maintain voltage within tight tolerances, unlike a faulty AVR that may cause fluctuating or incorrect voltage output. Operators may notice lights flickering, sensitive electronic equipment malfunctioning, or the generator failing to produce power when this AVR fails.

Automatic Voltage Regulator Avr – Part No 314-7755 – CAT Spare Part
Part Specifications
BrandCAT
CategoryEngine Parts
ConditionAftermarket — OEM Specification
DispatchSame-day from Mumbai (before 3 PM IST)
GST InvoiceAvailable — all orders
Export DocsCommercial invoice, packing list, COO

Compatible Models

Always verify with serial number before ordering.

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Installation & Application Notes

Inspect mating surfaces for wear before fitting. Use torque specs from service manual. Replace gaskets and seals as a set — reusing compressed gaskets causes oil leaks. Clean all oil passages with compressed air.

Always consult the OEM service manual for model-specific torque values and procedures. WhatsApp our technical team if you need fitment guidance.

Part TypeAutomatic Voltage Regulator (AVR)
MaterialElectronic Components, Aluminum Housing
ApplicationGenerator Voltage Regulation
Service LifeDesigned for equipment life; replace if faulty
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

The first sign of a failing AVR is often unstable generator output voltage, leading to flickering lights or erratic behavior in connected equipment. If the AVR fails completely, the generator may produce no voltage or an excessively high voltage, potentially damaging connected loads. Continued operation risks equipment damage and unreliable power supply.

Installation Tip

Ensure the generator is completely de-energized and the battery is disconnected before attempting replacement. Connect the wiring precisely as per the diagram to avoid damaging the new unit or the generator's windings.

Service Note

Inspect the generator's output windings and exciter for any signs of damage or overheating when replacing the AVR.