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Auction ended · final winning bid

$15,300after 32 bids

89% above the $8,100 median of 22 similar government sales (most went for $5,200 to $15,300).

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2006 Generac SD500 500 kW Industrial Standby Diesel Generator – 277/480V, 3-Phas

This lot sold for $15,300 at government auction in Phoenix, AZ on August 20, 2026, after 32 bids.

GovDealsTools📍Phoenix, AZ

Current bid:

$15,300

32 bids

Time Left

Ended

Ends Aug 20, 2026

See 8 live Generac generator auctions →

Market demand: Tools in Arizona sell about 68% of the time, typically ~5 bids. Based on 128 completed sales over the last year.

Similar tools sold for

$5,200 – $15,300

Median $8,100 · based on 22 past government auctions in the last 12 months.

$15,300 is 89% above the median.

See tools price trends →
Want this signal on live auctions? Flip Score grades every live listing with a margin estimate.

Seller

Sierra Auction - TRV

Condition: As-is

Full Description

2006 Generac SD500 500 kW Standby Diesel Generator — Doosan/Daewoo P180LE 18.3L V10 Heavy-duty Generac SD500 industrial diesel generator set previously used by a government agency for emergency standby power. The unit has very low operating hours and is reported to be fully operational. It was removed from service to comply with updated state requirements, not because of a known mechanical or operational problem. Manufacturer Identification Manufacturer: Generac Power Systems Series: SD500 Model: 742736 Model Number: 7427360300 Type Code: MD0500-K36180D18GPSL Generator Serial Number: 2091301 Generac Engine Number: 0D8690 Engine Manufacturer: Daewoo / Doosan Infracore Engine Model: P180LE Engine Serial Number: EAS0C600277 Production Date: November 3, 2006 Engine Manufacture Date: April 2006 Country of Manufacture: USA Generator Ratings Standby Power Rating: 500 kW Standby Apparent Power: 625 kVA Prime Power Rating: 400 kW Prime Apparent Power: 500 kVA Output Voltage: 277/480 Volts Rated Current: 751.7 Amps Phase: Three-Phase Frequency: 60 Hz Power Factor: 0.8 Rated Speed: 1,800 RPM Alternator Speed: 1,800 RPM The manufacturer’s 60-Hz operating-data table lists the SD500 at 500 kW standby and 400 kW prime when configured for 277/480-volt, three-phase output. Engine Specifications Engine Type: Four-cycle industrial diesel Displacement: 18.3 Liters / Approximately 1,115 Cubic Inches Configuration: V10 Number of Cylinders: 10 Bore: 128 mm / 5.04 Inches Stroke: 142 mm / 5.59 Inches Aspiration: Turbocharged and aftercooled Cooling System: Liquid-cooled Fuel System: Direct injection Fuel-Injection Pump: Bosch P-type Cylinder Liners: Replaceable wet liners Compression Ratio: 15:1 Rated Speed: 1,800 RPM Starting System: 24-volt DC Manufacturer-Documented Features Brushless permanent-magnet excitation system Solid-state voltage regulation Class H rotor and stator insulation Four-pole, rotating-field generator Generac PowerManager digital generator controller High-coolant-temperature automatic shutdown Low-coolant-level automatic shutdown Low-oil-pressure automatic shutdown Overspeed and overcrank protection Factory-installed radiator Pressurized, closed coolant-recovery system Fuel filter and water separator Battery-charging alternator Jacket-water heater Vibration isolators Critical exhaust silencer Manufacturer literature may list a combination of standard and optional equipment. Installed accessories should be visually inspected and independently verified. Factory Test Documentation The included Generac factory test report is dated November 20, 2006. It identifies generator model 742736, serial number 2091301, and engine serial number EAS0C-600277. The report documents the generator’s original configuration at 500 kW, 480/277 volts, 751.7 amps, three-phase, 60 Hz, and 0.8 power factor. The factory test documentation reflects production testing performed when the generator was manufactured and should not be interpreted as a current load-bank test, current inspection, or current operational certification. Approximate Overall Dimensions Length: 19 feet 2 inches Width: 5 feet 3 inches Height: 8 feet 2 inches Dimensions were measured onsite and should be independently verified before arranging transportation. Load-Out and Removal The buyer is solely responsible for all labor, equipment, rigging, loading, removal, and transportation. A forklift is not available onsite, and the seller will not provide loading or removal assistance. Disclaimer: Manufacturer specifications are provided for general reference and were compiled from the available Generac SD500 literature and factory test documentation. Specifications, ratings, installed accessories and configuration may vary by serial number or original build order. Seller does not warrant the accuracy or completeness of manufacturer-provided information.

Pickup information

Phoenix, AZ 85019-3402

Sierra Auction - TRV

Pickup within 5 business days
Sold as-is. Unless the description says otherwise, you arrange and pay for pickup or transport yourself.

120 Generac generator lots sold at government auctions in the past year. Generac generator government auction prices

Market data: see how government surplus prices are moving in the GovAuctions.app Surplus Price Index and how often each category sells in the GovAuctions.app Surplus Market Report.