E&M Equipment
E&M Equipment

E&M Equipment,LLC natural gas and diesel generators

Electrical Equipment

Oil and Gas Rigs

Gas Compressor

Surplus Material Management



About Us

E&M Equipment has been in business since 2006.   We take pride in operating with 100% transparency in all our transactions so as not to interrupt the buy/sell cycle. We buy/sell/broker electrical equipment, oil and gas rigs, gas compressors, generators, and much more. All our Equipment will be labeled: Owned by E&M or Brokered by E&M. We look forward to doing business with you. 

Natural Gas Engines, Compressors and Generators

Natural Gas Compressor

 Core units ready for rebuild, running operational units. ready to work.


5 / 3304NA   Gemini  2 

2 / 3306NA Gemini  2 

1 / 3406 NA  Gemini 2

1 / 3406TA Ariel JGJ / 2 

1 / F1197  Ariel JG / 2  

2 / G3612  TALE Dresser 7HOS4 / 1 

1350kW Natural Gas Generator 4160 Volt Mobile


5 / MWM  TBG620 V 16 1350Kw   4160 Volt   $ 110,000 USD EACH

California USA 

$375,000.00 Each Zero Rebuild

Oil Sample and Serial Numbers.

Engine Serial Number

#1:  9296446 Engine Serial Number hours 87,775

#2:  9296708 Engine Serial Number hours 75,644

#3:  9296244 Engine Serial Number hours 73,515

#4:  9296660 Engine Serial Number hours 62,000 

#5:  9296436 Engine Serial Number hours 86,996

Core Generator set For sale

New Surplus Caterpillar iso switchgear 5kv line up



$65,000.00  5Kv  Line up no Breaker Saskatchewan Canada( "As is" No Breakers)

  • 8  Generator Breaker holes
  • 6   Feeder Breaker holes
  • 3000  amp Main holes
  • Controls
  • MCC
  • Ground Resistors 
  • 26  Cubical Line up 
  • Drawing on request
  • Custom build on Request 

Breaker Quote


Extra Cost:  New 1200 amp breakers with warranty. $155,000.00 for all new Breakers shipped loose.

Total With BREAKER $220,000 USD 

Find out more

Description of DRS Fermont


DRS Fermont MEP-804B 15kW Generator Set 2009

15kW, 240/416 Volts 3 Phase, 

120/208 Volts 3 Phase, 120V Receptacles, 

Yanmar Turbo Diesel Engine, Fuel Tank, 37x12.50R16.5 Tires, 

Single Axle Trailer Chassis, Surge Brakes, Pintle Ring

Cost: $6,500.00


G399 mobile caterpillar generator 600kw


One (1) FULLY RECONDITIONED in 2007 Ariel Model JGH4-3 skid mounted
natural gas compressor, 4.5" stroke, four throw, three stage, with two (2) 13.5” first
stage cylinders (with VVCP), a 9.75” second stage cylinder (with VVCP), and a
6.375” third stage cylinder. The compressor is rated at 48000 pounds maximum
combined gas rod load and 1200 RPM maximum speed. It is driven by a NEW in
2007 Westinghouse 900 horsepower, TEFC, 4160 volt, three phase electric motor.
The package utilizes a NEW in 2007 Ariel JGH4 frame, NEW in 2007 ACE model
J96M-14 cooler, NEW in 2007 compressor skid and reconditioned cylinders. 900HP

Dimensions and Weights



Note on Trailer

Trailer needs work before being road worthy

Video of G399 Caterpillar Generator

Operational running unit September 2018

2/Ingersoll-Rand s40 generator sets

Good running units 2 available


33 kW, John Deere 3029TF270D Engine, 

Bottom Mounted Fuel Tank, T/A Trailer,

Pintle Ring, Electric Brakes, 

205/75R14 Tires 

RPM 1800

Volt: 120/240

PF: 1.0

Alt Model: LSA43.2S3

Hertz: 60



Unit #1 hours: 917

Unit #2 hours: 179


9,500.00 each


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Contact Us

Drop us a line!

E&M Equipment

1716 N Main St Ste A-166 Longmont , CO. 80501

(303) 736-9424


Monday - Friday: 9am - 5pm

Saturday: By appointment

Sunday: Closed