Southwest Product Changes - Same Great Service

The Novel Coronavirus (COVID-19) is having an immense impact in our communities.
Our primary concern is for the safety of our team members and customers.
Currently, we are operating as normal except for in-person training (tentatively suspended until August).
We continue to monitor the situation at all of our locations and will provide updates as necessary.

QP 500 Generators

All the Muscle You Need

Durable features that provide a long-lasting quality for your power needs.

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QP 500 Generators

QP 500 Generators


Southwest Products’ Quiet Power 500 diesel generator is excellent for large construction projects, industrial applications, or for rentals. These mobile diesel generators have durable features that provide a long-lasting quality appearance while delivering continuous operating data on an easy-to-read display screen.

Standby Rating: 500 kVA / 400 kW
Prime Rating: 438 kVA / 350 kW
  • Digital controller with user-friendly displays and keypad functions
  • Heavy duty, 4-cycle, direct injection, turbocharged diesel engine
  • Oversized alternator with PMG for better motor starting
  • Custom branding options
  • Available with or without a trailer

Contact our team or call 602-269-3581 for more information.

View Specification Sheet

Technical Specifications

Model QP 500
Available Voltages 120/208 | 277/480
Standby Rating kVa/kWe 500 kVA / 400 kWe
Prime Rating kVa/kWe 438 kVA / 350 kWe
Engine Model 2206D-E13TAG3
Alternator Marathon

Engine Specifications

Engine Mfg Perkins
Model Number 2206D-E13TAG3
Spec # TGDF7127
Prime Output HP (Gross) 546
Standby Output HP (Gross) 620
Emissions Certification Tier 3/Flex

Fuel Specifications

Fuel Tank Capacity 500 gal
50% Load 15.7
75% Load 22.4
100% Load 29.2

Alternator Specifications

Available Voltages 120/208 | 277/480
277/480 Volt Prime Amps PF .08 526.9
277/480 Volt Standby Amps PF .08 602.1
120/208 Volt Prime Amps PF .08 1215.8
120/208 Volt Standby Amps PF .08 1389.5
120/240 Volt Prime Amps PF 1.0
120/240 Volt Standby Amps PF 1.0

Enclosure Specifications

Length – Enclosure 208″
Width 72″
Height 91″
Weight – Dry 14,400 lbs
Length with Trailer 301″
Width with Trailer 102″
Height with Trailer 117″
Weight with Trailer 18,900 lbs
Weight Ready to Run 22,500 lbs
Sound dBA Level at 23ft. 75 dBA


Reliable, Sturdy, and Environmentally Friendly

  • Robust construction
  • Heavy duty, 4-cycle, direct injection, turbo charged diesel engine
  • Oversized alternator with PMG for better motor starting
  • Heavy gauge, powder coated, lockable enclosure
  • Dual containment fuel cell with environmental containment basin

Extremely Quiet and Fuel Efficient

  • Sound attenuation for superior noise reduction
  • EPA Tier 3 FLEX certified
  • Electric fuel system and governor control
  • Large capacity fuel cell for extended run time

Easy to Use Connection and Service Points

  • Digital engine/generator controller with redundant analog gauges/meters
  • Multi-voltage switch with utility power
  • SWP Tough Series TG410 digital genset controller
  • Bus bar and utility outlets for customer connections
  • Single point lift


Quality Products That Work As Hard As You Do