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410 Results
410 Results 
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Used Ajax 6 1/2x8 EA-22 Natural Gas Engine
1 of 4
Used Ajax 6 1/2x8 EA-22 Natural Gas Engine

Used Ajax 6 1/2x8 EA-22 Pumpjack Engine with following features: • 22 HP • 350-650 RPM • 1 Cylinder, 4 stroke • 165 mm (6.5 in) Bore • 203 mm (8 in) Stroke • 4.34 L (265 in3) Displacement • Weight 2,900 lbs (dry weight, engine only) • Dims 72"Lx46"Wx36"H

Used Ajax 6 1/2x8 EA-22 Natural Gas Engine
1 of 4
  • 22 HP
  • 350-650 RPM
  • Stock No: 52647
22
350-650
Used Ajax 6 1/2x8 EA-22 Natural Gas Engine
1 of 3
Used Ajax 6 1/2x8 EA-22 Natural Gas Engine

Used Ajax 6 1/2x8 EA-22 Pumpjack Engine with following features: • 22 HP • 350-650 RPM • 1 Cylinder, 4 stroke • 165 mm (6.5 in) Bore • 203 mm (8 in) Stroke • 4.34 L (265 in3) Displacement • Weight 2,900 lbs (dry weight, engine only) • Dims

Used Ajax 6 1/2x8 EA-22 Natural Gas Engine
1 of 3
  • 22 HP
  • 350-650 RPM
  • Stock No: 52641
22
350-650
Used Ajax 6 1/2x8 EA-22 Natural Gas Engine
1 of 4
Used Ajax 6 1/2x8 EA-22 Natural Gas Engine

Used Ajax 6 1/2x8 EA-22 Pumpjack Engine with following features: • 22 HP • 350-650 RPM • 1 Cylinder, 4 stroke • 165 mm (6.5 in) Bore • 203 mm (8 in) Stroke • 4.34 L (265 in3) Displacement • Weight 2,900 lbs (dry weight, engine only) • Dims 72"Lx46"Wx36"H

Used Ajax 6 1/2x8 EA-22 Natural Gas Engine
1 of 4
  • 22 HP
  • 350-650 RPM
  • Stock No: 52643
22
350-650
Used Ajax 6 1/2x8 EA-22 Natural Gas Engine
1 of 5
Used Ajax 6 1/2x8 EA-22 Natural Gas Engine

Used Ajax 6 1/2x8 EA-22 Pumpjack Engine with following features: • 22 HP • 350-650 RPM • 1 Cylinder, 4 stroke • 165 mm (6.5 in) Bore • 203 mm (8 in) Stroke • 4.34 L (265 in3) Displacement • Weight 2,900 lbs (dry weight, engine only) • Dims

Used Ajax 6 1/2x8 EA-22 Natural Gas Engine
1 of 5
  • 22 HP
  • 350-650 RPM
  • Stock No: 52644
22
350-650
Used Ajax 6 1/2x8 EA-22 Natural Gas Engine
1 of 4
Used Ajax 6 1/2x8 EA-22 Natural Gas Engine

Used Ajax 6 1/2x8 EA-22 Pumpjack Engine with following features: • 22 HP • 350-650 RPM • 1 Cylinder, 4 stroke • 165 mm (6.5 in) Bore • 203 mm (8 in) Stroke • 4.34 L (265 in3) Displacement • Weight 2,900 lbs (dry weight, engine only) • Dims 72"Lx46"Wx36"H

Used Ajax 6 1/2x8 EA-22 Natural Gas Engine
1 of 4
  • 22 HP
  • 350-650 RPM
  • Stock No: 52642
22
350-650
Used Ajax 7 1/4x8 EA-30 Natural Gas Engine
1 of 5
Used Ajax 7 1/4x8 EA-30 Natural Gas Engine

Used Ajax 7 1/4x8 EA-30 Pumpjack Engine with following features: • 30 HP • 350-650 RPM • 1 Cylinder, 4 stroke • 184 mm (7.25 in) Bore • 203 mm (10 in) Stroke • 5.41 L (330 in3) Displacement • Weight 2,950 (dry weight, engine only) • Dims

Used Ajax 7 1/4x8 EA-30 Natural Gas Engine
1 of 5
  • 30 HP
  • 350-650 RPM
  • Stock No: 52651
30
350-650
Used Ajax 7 1/4x8 EA-30 Natural Gas Engine
1 of 4
Used Ajax 7 1/4x8 EA-30 Natural Gas Engine

Used Ajax 7 1/4x8 EA-30 Pumpjack Engine with following features: • 30 HP • 350-650 RPM • 1 Cylinder, 4 stroke • 184 mm (7.25 in) Bore • 203 mm (10 in) Stroke • 5.41 L (330 in3) Displacement • Weight 2,950 (dry weight, engine only) • Dims 72"Lx46"Wx36"H

Used Ajax 7 1/4x8 EA-30 Natural Gas Engine
1 of 4
  • 30 HP
  • 350-650 RPM
  • Stock No: 52648
30
350-650
Used Detroit 6-71 Diesel Engine
1 of 21
Used Detroit 6-71 Diesel Engine

Model #RC603IN, complete with radiator and transmission, on skid with triplex pump Dims-engine 68"Lx38"Wx69"H

Used Detroit 6-71 Diesel Engine
1 of 21
  • 230 HP
  • 2100 RPM
  • Stock No: 52556
230
2100
Used Waukesha F-1197 Natural Gas Engine
1 of 5
Used Waukesha F-1197 Natural Gas Engine

Used inline 6 cylinder natural gas engine, No tag, oil cooler is high with center water entry, Altronic V, clutch, Impco 200 on skid with Worthington 6x11 serial number L-82544-T dims engine only: 99" L x 45" W x 85" H

Used Waukesha F-1197 Natural Gas Engine
1 of 5
  • 248 HP
  • 1800 RPM
  • Stock No: 52387
248
1800
Used Waukesha F-554 GU Natural Gas Engine
1 of 3
Used Waukesha F-554 GU Natural Gas Engine

Casting #140420, open exhaust, Alt V, drive plate/pillow block

Used Waukesha F-554 GU Natural Gas Engine
1 of 3
  • 70 HP
  • 1800 RPM
  • Stock No: 52373
70
1800
Used LeRoi A-114 Natural Gas Engine
1 of 6
Used LeRoi A-114 Natural Gas Engine

Used natural gas engine, 5 1/4 x 5 1/4, came with Twin Disc C110HP4 clutch

Used LeRoi A-114 Natural Gas Engine
1 of 6
  • 12 HP
  • 1200 RPM
  • Stock No: 52344
12
1200
Used Fairbanks Morse 118 Natural Gas Engine
1 of 3
Used Fairbanks Morse 118 Natural Gas Engine

Used Fairbanks Morse 118 Pumpjack Engine with following features: • 7 HP • 350/700 RPM • 1 Cylinder, 4 stroke • 127.0 mm (5.0 in) Bore • 152.4 mm (6.0 in) Stroke • Weight 780 lbs • Dims 38"Lx20"Wx43"H

Used Fairbanks Morse 118 Natural Gas Engine
1 of 3
  • 7 HP
  • 350/700 RPM
  • Stock No: 52310
7
350/700
Used Fairbanks Morse 118 Natural Gas Engine
1 of 4
Used Fairbanks Morse 118 Natural Gas Engine

Used Fairbanks Morse 118 Pumpjack Engine with following features: • 7 HP • 350/700 RPM • 1 Cylinder, 4 stroke • 127.0 mm (5.0 in) Bore • 152.4 mm (6.0 in) Stroke • Weight 780 lbs • Dims 38"Lx20"Wx43"H

Used Fairbanks Morse 118 Natural Gas Engine
1 of 4
  • 7 HP
  • 350/700 RPM
  • Stock No: 52307
7
350/700
Used Ajax 7 1/4x8 EA-30 Natural Gas Engine
1 of 2
Used Ajax 7 1/4x8 EA-30 Natural Gas Engine

Used Ajax 7 1/4x8 EA-30 Pumpjack Engine with following features: • 30 HP • 350-650 RPM • 1 Cylinder, 4 stroke • 184 mm (7.25 in) Bore • 203 mm (10 in) Stroke • 5.41 L (330 in3) Displacement • Weight 2,950 (dry weight, engine only) • Dims 72"Lx46"Wx36"H

Used Ajax 7 1/4x8 EA-30 Natural Gas Engine
1 of 2
  • 30 HP
  • 350-650 RPM
  • Stock No: 52282
30
350-650
Used Ajax 7 1/4x8 EA-30 Natural Gas Engine
1 of 4
Used Ajax 7 1/4x8 EA-30 Natural Gas Engine

Used Ajax 7 1/4x8 EA-30 Pumpjack Engine with following features: • 30 HP • 350-650 RPM • 1 Cylinder, 4 stroke • 184 mm (7.25 in) Bore • 203 mm (10 in) Stroke • 5.41 L (330 in3) Displacement • Weight 2,950 (dry weight, engine only) • Dims 72"Lx36"Wx55"H

Used Ajax 7 1/4x8 EA-30 Natural Gas Engine
1 of 4
  • 30 HP
  • 350-650 RPM
  • Stock No: 52281
30
350-650
Used Ajax 7 1/4x8 EA-30 Natural Gas Engine
1 of 4
Used Ajax 7 1/4x8 EA-30 Natural Gas Engine

Used Ajax 7 1/4x8 EA-30 Pumpjack Engine with following features: • 30 HP • 350-650 RPM • 1 Cylinder, 4 stroke • 184 mm (7.25 in) Bore • 203 mm (10 in) Stroke • 5.41 L (330 in3) Displacement • Weight 2,950 (dry weight, engine only) • Dims 72"Lx46"Wx55"H

Used Ajax 7 1/4x8 EA-30 Natural Gas Engine
1 of 4
  • 30 HP
  • 350-650 RPM
  • Stock No: 52256
30
350-650
Used Ajax 7 1/4x8 EA-30 Natural Gas Engine
1 of 5
Used Ajax 7 1/4x8 EA-30 Natural Gas Engine

Used Ajax 7 1/4x8 EA-30 Pumpjack Engine with following features: • 30 HP • 350-650 RPM • 1 Cylinder, 4 stroke • 184 mm (7.25 in) Bore • 203 mm (10 in) Stroke • 5.41 L (330 in3) Displacement • Weight 2,950 (dry weight, engine only) • Dims 72"Lx46"Wx36"H

Used Ajax 7 1/4x8 EA-30 Natural Gas Engine
1 of 5
  • 30 HP
  • 350-650 RPM
  • Stock No: 52253
30
350-650
Used Ajax 7 1/4x8 EA-30 Natural Gas Engine Bare Case
1 of 4
Used Ajax 7 1/4x8 EA-30 Natural Gas Engine Bare Case

Used Ajax 7 1/4x8 EA-30 Pumpjack Engine with following features: • 30 HP • 350-650 RPM • 1 Cylinder, 4 stroke • 184 mm (7.25 in) Bore • 203 mm (10 in) Stroke • 5.41 L (330 in3) Displacement • Weight 2,950 (dry weight, engine only) • Dims

Used Ajax 7 1/4x8 EA-30 Natural Gas Engine Bare Case
1 of 4
  • 30 HP
  • 350-650 RPM
  • Stock No: 52261
30
350-650
Used I/H 4 cylinder Natural Gas Engine
1 of 3
Used I/H 4 cylinder Natural Gas Engine

Used inline 4 cylinder gas engine

Used I/H 4 cylinder Natural Gas Engine
1 of 3
  • Stock No: 52223
Used Superior Vertical - Diesel Engine
1 of 5
Used Superior Vertical - Diesel Engine

Antique 10hp slow speed vertical engine Dims- 40"L x 32"L x 55"H

Used Superior Vertical - Diesel Engine
1 of 5
  • 10 HP
  • 350 RPM
  • Stock No: 52226
10
350

Power Zone offers a wide range of new, used and reconditioned engines including Diesel Engines, Natural Gas Engines, Gas Engines, Propane Engines, and Hit & Miss Engines, sometimes referred to as Putt & Putt Engines or Pumpjack Engines. We provide these engines from many different manufacturers including Caterpillar, MTU, Detroit, Cummins, John Deere Ajax and Arrow. We have engines for most applications including Portable Power Units, Heavy Machinery, Fluid Pumping, Air Compression and Backup Power for the municipal, manufacturing, oil & gas, mining and agriculture sectors.