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410 Results
410 Results 
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Used Waukesha F-817 GU Natural Gas Engine
1 of 4
Used Waukesha F-817 GU Natural Gas Engine

Used Waukesha F-817 GU Natural Gas engine with following features: • 190 HP • 2000 RPM • Inline 6 Cylinder, 4 stroke • 137.0 mm (5.375 in) Bore • 152.0 mm (6.0 in) Stroke • 13.31 L (817 in3) Displacement • Naturally Aspirated • CCW Rotation (from flywheel end) • SAE #0 Flywheel housing • Electric or Pneumatic starting system • Weight 2,780 lbs (dry weight, engine only) • Dims

Used Waukesha F-817 GU Natural Gas Engine
1 of 4
  • 190 HP
  • 2000 RPM
  • Ratio: 9.0000
  • Stock No: 54125
190
2000
Used Arrow Y-18 Natural Gas Engine
1 of 3
Used Arrow Y-18 Natural Gas Engine

Used Arrow Y-18 Pumpjack engine with following features: • 18 HP • 350/700 RPM • 1 Cylinder, 4 stroke • 2.8 L (173 in3) Displacement • Naturally Aspirated • Weight 1,455 lbs (dry weight, engine only) • Dims 51"Lx30"Wx47"H

Used Arrow Y-18 Natural Gas Engine
1 of 3
  • 18 HP
  • 350-700 RPM
  • Stock No: 54100
18
350-700
Used Kubota NRG 1600 Natural Gas Engine
1 of 2
Used Kubota NRG 1600 Natural Gas Engine

Used Kubota NRG 1600 Pumpjack engine with following features: • 16 HP • 300/1100 RPM • 1 Cylinder, 4 stroke • 1.922 L (117.28 in3) Displacement • Naturally Aspirated • Weight (dry weight, engine only) • Dims 48"Lx43"Wx35"H

Used Kubota NRG 1600 Natural Gas Engine
1 of 2
  • 16 HP
  • 300-1100 RPM
  • Stock No: 54103
16
300-1100
Used Ajax DP-300 Cylinder Natural Gas Engine
1 of 3
Used Ajax DP-300 Cylinder Natural Gas Engine

15 x 16 cylinder core

Used Ajax DP-300 Cylinder Natural Gas Engine
1 of 3
  • 300 HP
  • Stock No: 54082
300
Used Ajax 8 1/2x10 E-42 Natural Gas Engine
1 of 3
Used Ajax 8 1/2x10 E-42 Natural Gas Engine

Used Ajax 8 1/2x10 E-42 Pumpjack Engine with following features: • 42 HP • 300-525 RPM • 1 Cylinder, 4 stroke • 216 mm (8.5 in) Bore • 254 mm (10 in) Stroke • 9.29 L (567 in3) Displacement • Weight 4,320 lbs (dry weight, engine only) • Dims

Used Ajax 8 1/2x10 E-42 Natural Gas Engine
1 of 3
  • 42 HP
  • 300-525 RPM
  • Stock No: 54075
42
300-525
Used Ajax WL/EA-15 Natural Gas Engine
1 of 4
Used Ajax WL/EA-15 Natural Gas Engine

Used Ajax WL/EA-15 Pumpjack Engine with following features: • 15 HP • 350-650 RPM • 1 Cylinder, 4 stroke • 127 mm (5.0 in) Bore • 165.1mm (6.5 in) Stroke • 2.09 L (128 in3) Displacement • Weight 2,950 (dry weight, engine only) • Dims

Used Ajax WL/EA-15 Natural Gas Engine
1 of 4
  • 15 HP
  • 350-650 RPM
  • Stock No: 54052
15
350-650
Used Ajax 8 1/2x10 E-42 Natural Gas Engine
1 of 3
Used Ajax 8 1/2x10 E-42 Natural Gas Engine

Used Ajax 8 1/2x10 E-42 Pumpjack Engine with following features: • 42 HP • 300-525 RPM • 1 Cylinder, 4 stroke • 216 mm (8.5 in) Bore • 254 mm (10 in) Stroke • 9.29 L (567 in3) Displacement • Weight 4,320 lbs (dry weight, engine only) • Dims

Used Ajax 8 1/2x10 E-42 Natural Gas Engine
1 of 3
  • 42 HP
  • 300-525 RPM
  • Stock No: 54028
42
300-525
Used Ajax 8 1/2x10 E-42 Natural Gas Engine
1 of 4
Used Ajax 8 1/2x10 E-42 Natural Gas Engine

Used Ajax 8 1/2x10 E-42 Pumpjack Engine with following features: • 42 HP • 300-525 RPM • 1 Cylinder, 4 stroke • 216 mm (8.5 in) Bore • 254 mm (10 in) Stroke • 9.29 L (567 in3) Displacement • Weight 4,320 lbs (dry weight, engine only) • Dims

Used Ajax 8 1/2x10 E-42 Natural Gas Engine
1 of 4
  • 42 HP
  • 300-525 RPM
  • Stock No: 54029
42
300-525
Used Ajax WL/EA-15 Natural Gas Engine
1 of 6
Used Ajax WL/EA-15 Natural Gas Engine

Used Ajax WL/EA-15 Pumpjack Engine with following features: • 15 HP • 350-650 RPM • 1 Cylinder, 4 stroke • 127 mm (5.0 in) Bore • 165.1mm (6.5 in) Stroke • 2.09 L (128 in3) Displacement • Weight 2,950 (dry weight, engine only) • Dims 58"Lx44"Wx39"H

Used Ajax WL/EA-15 Natural Gas Engine
1 of 6
  • 15 HP
  • 350-650 RPM
  • Stock No: 53975
15
350-650
Used Chevy 4.3 V-6 Natural Gas Engine
1 of 3
Used Chevy 4.3 V-6 Natural Gas Engine

Used Chevy 4.3 V-6 Natural Gas engine radiator through flywheel with following features: • 164 HP • 4000 RPM • V-6 Cylinder, 4 stroke • 101.6 mm (4.0 in) Bore • 88.39 mm (3.48 in) Stroke • 4.3 L (262 in3) Displacement • Naturally Aspirated • CCW Rotation (from flywheel end) • Weight 431 lbs (dry weight, engine only) • Dims (26”L x 21”W x 27” H)

Used Chevy 4.3 V-6 Natural Gas Engine
1 of 3
  • 164 HP
  • 4000 RPM
  • Ratio: 9.4000
  • Stock No: 53891
164
4000
Used Chevy 4.3 V-6 Natural Gas Engine
1 of 7
Used Chevy 4.3 V-6 Natural Gas Engine

Used Chevy 4.3 V-6 Natural Gas engine radiator through flywheel with following features: • 164 HP • 4000 RPM • V-6 Cylinder, 4 stroke • 101.6 mm (4.0 in) Bore • 88.39 mm (3.48 in) Stroke • 4.3 L (262 in3) Displacement • Naturally Aspirated • CCW Rotation (from flywheel end) • Weight 1020 lbs • Dims 57”L x 48”W x 70” H

Used Chevy 4.3 V-6 Natural Gas Engine
1 of 7
  • 164 HP
  • 4000 RPM
  • Ratio: 9.4000
  • Stock No: 53894
164
4000
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: 53834
30
350-650
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"Wx55"H

Used Ajax 7 1/4x8 EA-30 Natural Gas Engine
1 of 2
  • 30 HP
  • 350-650 RPM
  • Stock No: 53826
30
350-650
Used Ajax 8 1/2x10 E-42 Natural Gas Engine
1 of 5
Used Ajax 8 1/2x10 E-42 Natural Gas Engine

Used Ajax 8 1/2x10 E-42 Pumpjack Engine with following features: • 42 HP • 300-525 RPM • 1 Cylinder, 4 stroke • 216 mm (8.5 in) Bore • 254 mm (10 in) Stroke • 9.29 L (567 in3) Displacement • Weight 4,320 lbs (dry weight, engine only) • Dims

Used Ajax 8 1/2x10 E-42 Natural Gas Engine
1 of 5
  • 42 HP
  • 300-525 RPM
  • Stock No: 53836
42
300-525
Used Ajax 8 1/2x10 E-42 Natural Gas Engine
1 of 3
Used Ajax 8 1/2x10 E-42 Natural Gas Engine

Used Ajax 8 1/2x10 E-42 Pumpjack Engine with following features: • 42 HP • 300-525 RPM • 1 Cylinder, 4 stroke • 216 mm (8.5 in) Bore • 254 mm (10 in) Stroke • 9.29 L (567 in3) Displacement • Weight 4,320 lbs (dry weight, engine only) • Dims

Used Ajax 8 1/2x10 E-42 Natural Gas Engine
1 of 3
  • 42 HP
  • 300-525 RPM
  • Stock No: 53837
42
300-525
Used Ajax 8 1/2x10 E-42 Natural Gas Engine
1 of 2
Used Ajax 8 1/2x10 E-42 Natural Gas Engine

Used Ajax 8 1/2x10 E-42 Pumpjack Engine with following features: • 42 HP • 300-525 RPM • 1 Cylinder, 4 stroke • 216 mm (8.5 in) Bore • 254 mm (10 in) Stroke • 9.29 L (567 in3) Displacement • Weight 4,320 lbs (dry weight, engine only) • Dims

Used Ajax 8 1/2x10 E-42 Natural Gas Engine
1 of 2
  • 42 HP
  • 300-525 RPM
  • Stock No: 53774
42
300-525
Used Ajax 8 1/2x10 E-42 Natural Gas Engine
1 of 6
Used Ajax 8 1/2x10 E-42 Natural Gas Engine

Used Ajax 8 1/2x10 E-42 Pumpjack Engine with following features: • 42 HP • 300-525 RPM • 1 Cylinder, 4 stroke • 216 mm (8.5 in) Bore • 254 mm (10 in) Stroke • 9.29 L (567 in3) Displacement • Weight 4,320 lbs (dry weight, engine only) • Dims

Used Ajax 8 1/2x10 E-42 Natural Gas Engine
1 of 6
  • 42 HP
  • 300-525 RPM
  • Stock No: 53775
42
300-525
Used Ajax 8 1/2x10 E-42 Natural Gas Engine
1 of 6
Used Ajax 8 1/2x10 E-42 Natural Gas Engine

Used Ajax 8 1/2x10 E-42 Pumpjack Engine with following features: • 42 HP • 300-525 RPM • 1 Cylinder, 4 stroke • 216 mm (8.5 in) Bore • 254 mm (10 in) Stroke • 9.29 L (567 in3) Displacement • Weight 4,320 lbs (dry weight, engine only) • Dims

Used Ajax 8 1/2x10 E-42 Natural Gas Engine
1 of 6
  • 42 HP
  • 300-525 RPM
  • Stock No: 53779
42
300-525
Used Kubota NRG 1600 Natural Gas Engine
1 of 2
Used Kubota NRG 1600 Natural Gas Engine

Used Kubota NRG 1600 Pumpjack engine with following features: • 16 HP • 300/1100 RPM • 1 Cylinder, 4 stroke • 1.922 L (117.28 in3) Displacement • Naturally Aspirated • Weight • Dims 48"Lx43"Wx35"H

Used Kubota NRG 1600 Natural Gas Engine
1 of 2
  • 16 HP
  • 300-1100 RPM
  • Stock No: 53746
16
300-1100
Used Ajax 7 1/2x10 CMA Natural Gas Engine
1 of 3
Used Ajax 7 1/2x10 CMA Natural Gas Engine

Used Ajax 7 1/2x10 CMA Pumpjack Engine with following features: • 30HP • 300-525 RPM • 1 Cylinder, 4 stroke • 190.5 mm (7.5 in) Bore • 254 mm (10.0 in) Stroke • 7.2 L (442 in3) Displacement • Weight • Dims 94"Lx57"Wx46"H

Used Ajax 7 1/2x10 CMA Natural Gas Engine
1 of 3
  • 30 HP
  • 300-525 RPM
  • Stock No: 53731
30
300-525

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.