Description

20KW WDG Compact Diesel Generator (Prime)

The 20 kW WDG Compact Diesel Generator (Prime) is a compact, fuel-efficient power solution designed for mobile businesses, commercial operations, and temporary power applications. Built around the dependable Quanchai QC490D diesel engine, this generator delivers reliable prime power while maintaining a compact footprint for installations where space is limited.
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Why Choose This Generator?

Equipped with a WDG brushless 4-pole alternator with AVR, the generator provides stable voltage regulation and dependable electrical output for equipment requiring consistent power. Generator operation is managed through the SmartGen 6120 digital controller, offering intuitive monitoring and protection features.

The compact enclosure operates at approximately 70–75 dB at 7 meters and includes numerous built-in protection features such as oil warning, water temperature alarm, AC circuit breaker, speed protection, and optional ATS compatibility. Available in single-phase or three-phase configurations, voltage can be customized to meet project requirements.

Designed for dependable daily operation, the 20 kW WDG Compact Diesel Generator is ideal for mobile businesses, concession trailers, food trucks, advertising vehicles, outdoor events, and other commercial applications requiring portable prime power.

The generator pictured in the product photo is a silent and weatherproof enclosure.

Key Features

• 20 kW Prime Rated Output
• Quanchai QC490D diesel engine
• WDG brushless 4-pole alternator with AVR
• SmartGen 6120 controller
• Electric start
• Single-phase or three-phase available
• Custom voltage available
• Quiet operation (70–75 dB @ 7 m)
• Optional ATS compatibility

Common Applications

• Food trucks
• Coffee trailers
• Mobile kitchens
• Concerts & festivals
• Advertising trucks
• Mobile retail
• Event vendors
• Construction trailers
• Emergency mobile power

Need Help Choosing the Right Model?

Visit our Ultimate Diesel Generator Buyer’s Guide for tips on sizing, installation, and voltage selection. Our guide makes it easy to find the best generator for your power needs.

Contact Us

Phone: 423.220.3500
Email: sales@wholesale-generators.com

Warranty & Lead Time

Lead Time: 90 Day Delivery Estimate – Call to see if this product is in stock
Warranty: 2 Years / 2000 Hours on parts

Every product is tested before shipping.