Automatic Voltage Regulator AVR for Caterpillar Generator 3208 3304 3304B 3306 3306B 3406B
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Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
- generator sets powered by Caterpillar 3208, 3304, 3304B, 3306, 3306B and 3406B engines with matching alternators
Product Overview
Automatic Voltage Regulator regulates the generator's output voltage by controlling excitation. When you notice unstable output voltage or a failed regulator confirmed by electrical diagnosis, inspect the surrounding components before replacing the part; similar symptoms can have more than one cause.
This replacement is intended for generator sets powered by Caterpillar 3208, 3304, 3304B, 3306, 3306B and 3406B engines with matching alternators. Check generator alternator model, wiring, voltage and excitation rating against the original equipment so that the replacement matches the actual installation.
Key Features & Performance
- Automatic Voltage Regulator for the stated application
- Function: regulates the generator's output voltage by controlling excitation
- Important fitment checks: generator alternator model, wiring, voltage and excitation rating
Replaces / Cross-References
No OE or interchange number independently established from the current product data.
What Is Included
Includes one automatic voltage regulator.
Fitment Notes
Match generator alternator model, wiring, voltage and excitation rating. Engine make alone does not determine AVR compatibility; match the generator alternator and regulator specifications. The applications above follow the original listing and may depend on equipment serial number or configuration.
Frequently Asked Questions
Is this an OEM part?
No. This listing is for a replacement part unless it explicitly states otherwise. Manufacturer names and part numbers identify intended applications.
How should I confirm fitment?
Compare the part number, equipment model, generator alternator model, wiring, voltage and excitation rating. For machines with serial-number breaks, consult the model-specific parts diagram.
Part Summary
Keywords: Automatic Voltage Regulator, generator sets powered by Caterpillar 3208, 3304, 3304B, 3306, 3306B and 3406B engines with matching alternators, replacement parts.
Brand names, model numbers, and reference part numbers are used for identification and compatibility purposes only. Verify the original component, dimensions, and application before purchase.