CATEngine Parts

309-1019 Avr Vr6 Automatic Voltage Regulator — Cat 3306 C32

This Automatic Voltage Regulator (AVR) is a critical control component for CAT generator sets, precisely managing the output voltage to protect connected equipment. Manufactured to meet rigorous OEM specifications, it ensures stable voltage regulation, unlike a faulty regulator which can cause voltage fluctuations. Operators may observe inconsistent power delivery, flickering lights, or damage to sensitive electronics when this AVR malfunctions.

Avr Vr6 Automatic Voltage Regulator – Part No 309-1019 – 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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Automatic Voltage Regulator Avr

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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, plastic housing
ApplicationGenerator voltage regulation
Service LifeReplace as needed based on electrical testing
CompatibilityCAT generator sets
ConditionNew — OEM specification

Failure Symptoms

The first indication of a failing AVR is often unstable voltage output, leading to inconsistent power. If not addressed, this can result in damage to sensitive electronic equipment connected to the generator. The worst consequence is the potential for widespread electrical component failure due to voltage spikes or drops.

Installation Tip

Before connecting the new AVR, carefully inspect all wiring harnesses and terminal connections for any signs of damage or corrosion. Ensure the correct wire routing is followed to prevent electrical shorts or incorrect readings.

Service Note

Check the generator's exciter and stator windings for any abnormalities when replacing the AVR.