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410 Results
410 Results 
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Used Ajax 7 1/4x8 EA-30 Natural Gas Engine
1 of 3
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 3
  • 30 HP
  • 350-650 RPM
  • Stock No: 52817
30
350-650
Used Arrow Y-24 Natural Gas Engine
1 of 5
Used Arrow Y-24 Natural Gas Engine

Used Arrow Y-24 Pumpjack engine with following features: • 24 HP • 400/800 RPM • 1 Cylinder, 4 stroke • 4.0 L (242 in3) Displacement • Naturally Aspirated • Weight 2,145 lbs (dry weight, engine only) • Dims 62"Lx36"Wx51"H

Used Arrow Y-24 Natural Gas Engine
1 of 5
  • 24 HP
  • 400-800 RPM
  • Stock No: 52803
24
400-800
Used Arrow Y-24 Natural Gas Engine
1 of 4
Used Arrow Y-24 Natural Gas Engine

Used Arrow Y-24 Pumpjack engine with following features: • 24 HP • 400/800 RPM • 1 Cylinder, 4 stroke • 4.0 L (242 in3) Displacement • Naturally Aspirated • Weight 2,145 lbs (dry weight, engine only) • Dims 62"Lx36"Wx51"H

Used Arrow Y-24 Natural Gas Engine
1 of 4
  • 24 HP
  • 400-800 RPM
  • Stock No: 52804
24
400-800
Used Arrow Y-33 Natural Gas Engine
1 of 3
Used Arrow Y-33 Natural Gas Engine

Used Arrow Y-18 Pumpjack engine with following features: • 33 HP • 400/800 RPM • 1 Cylinder, 4 stroke • 5.5 L (332 in3) Displacement • Naturally Aspirated • Weight 2,890 lbs (dry weight, engine only) • Dims 65"Lx37"Wx58"H

Used Arrow Y-33 Natural Gas Engine
1 of 3
  • 33 HP
  • 400-800 RPM
  • Stock No: 52805
33
400-800
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"Wx51"H

Used Ajax 6 1/2x8 EA-22 Natural Gas Engine
1 of 4
  • 22 HP
  • 350-650 RPM
  • Stock No: 52748
22
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: 52747
30
350-650
Used Lufkin L-333 Natural Gas Engine
1 of 3
Used Lufkin L-333 Natural Gas Engine

Used Lufkin L-333 Pumpjack engine with following features: • 30 HP • 350-750 RPM • 2 Cylinder, 2 cycle • 127.0 mm (5.5 in) Bore • 158.75 mm (7 in) Stroke • 5.4 L (123 in3) Displacement • Naturally Aspirated • CCW Rotation (from flywheel end) • Weight (dry weight, engine only) • Dims

Used Lufkin L-333 Natural Gas Engine
1 of 3
  • 30 HP
  • 350/750 RPM
  • Stock No: 52749
30
350/750
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: 52728
18
350-700
Used Arrow Y-18 Natural Gas Engine
1 of 5
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 5
  • 18 HP
  • 350-700 RPM
  • Stock No: 52730
18
350-700
Used Arrow Y-18 Natural Gas Engine
1 of 4
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 4
  • 18 HP
  • 350-700 RPM
  • Stock No: 52731
18
350-700
Used Ajax 7 1/2x10 Natural Gas Engine
1 of 4
Used Ajax 7 1/2x10 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 90"Lx59"Wx60"H

Used Ajax 7 1/2x10 Natural Gas Engine
1 of 4
  • 30 HP
  • 300-525 RPM
  • Stock No: 52716
30
300-525
Used Superior 7 1/2x10 Natural Gas Engine
1 of 2
Used Superior 7 1/2x10 Natural Gas Engine

Used Superior 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 Superior 7 1/2x10 Natural Gas Engine
1 of 2
  • 30 HP
  • 300-525 RPM
  • Stock No: 52715
30
300-525
Used Superior 7 1/2x10 Natural Gas Engine
1 of 2
Used Superior 7 1/2x10 Natural Gas Engine

Used Superior 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

Used Superior 7 1/2x10 Natural Gas Engine
1 of 2
  • 30 HP
  • 300-525 RPM
  • Stock No: 52718
30
300-525
Used Superior 8 1/2x10 Natural Gas Engine
1 of 2
Used Superior 8 1/2x10 Natural Gas Engine

Used Superior 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 Superior 8 1/2x10 Natural Gas Engine
1 of 2
  • 42 HP
  • 300-525 RPM
  • Stock No: 52717
42
300-525
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 72"Lx46"Wx36"H

Used Ajax 6 1/2x8 EA-22 Natural Gas Engine
1 of 5
  • 22 HP
  • 350-650 RPM
  • Stock No: 52219
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 72"Lx46"Wx36"H

Used Ajax 6 1/2x8 EA-22 Natural Gas Engine
1 of 5
  • 22 HP
  • 350-650 RPM
  • Stock No: 52638
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: 52639
22
350-650
Used Ajax 6 1/2x8 EA-22 Natural Gas Engine Bare Case
1 of 3
Used Ajax 6 1/2x8 EA-22 Natural Gas Engine Bare Case

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 Bare Case
1 of 3
  • 22 HP
  • 350-650 RPM
  • Stock No: 52640
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

Used Ajax 6 1/2x8 EA-22 Natural Gas Engine
1 of 4
  • 22 HP
  • 350-650 RPM
  • Stock No: 52650
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: 52646
22
350-650

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.