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380 Results
380 Results 
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Used Ajax 6 1/2x8 EA-22 Natural Gas Engine
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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: 51966
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: 51967
Used Oilwell-Witte - Natural Gas Engine
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Used Oilwell-Witte - Natural Gas Engine

Oilwell-Witte natural gas engine

Used Oilwell-Witte - Natural Gas Engine
1 of 5
  • 15 HP
  • 750 RPM
  • Stock No: 51759
Used Oilwell-Witte E-15 Natural Gas Engine
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Used Oilwell-Witte E-15 Natural Gas Engine

Used single cylinder natural gas engine

Used Oilwell-Witte E-15 Natural Gas Engine
1 of 5
  • 15 HP
  • 750 RPM
  • Stock No: 51758
Used Waukesha 6WAK Natural Gas Engine
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Used Waukesha 6WAK Natural Gas Engine

Altronic V,I/R 150 BMG gas starter, Impco 200 carb, full flow filter, on Worthington x11 compressor serial number L-70189

Used Waukesha 6WAK Natural Gas Engine
1 of 9
  • 175 HP
  • 1200 RPM
  • Stock No: 51772
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: 51653
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: 51648
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: 51581
Used Ajax 7 1/2x10 Natural Gas Engine
1 of 3
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 94"Lx57"Wx46"H

Used Ajax 7 1/2x10 Natural Gas Engine
1 of 3
  • 30 HP
  • 300-525 RPM
  • Stock No: 51582
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: 51479
Used Ajax 6 1/2x8 EA-22 Natural Gas Engine
1 of 6
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 6
  • 22 HP
  • 350-650 RPM
  • Stock No: 51480
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: 51484
Used Ajax 6 1/2x8 EA-22 Natural Gas Engine
1 of 6
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 6
  • 22 HP
  • 350-650 RPM
  • Stock No: 51482
Used Oilwell-Witte E-20 Natural Gas Engine
1 of 6
Used Oilwell-Witte E-20 Natural Gas Engine

Checked out and test ran. Starfire ignition, has radiator, fan and clutch

Used Oilwell-Witte E-20 Natural Gas Engine
1 of 6
  • 20 HP
  • 750 RPM
  • Stock No: 51457
Used Nordberg 4FG1-BH Natural Gas Engine
1 of 5
Used Nordberg 4FG1-BH Natural Gas Engine

Used engine, 15.6hp @ 1800rpm

Used Nordberg 4FG1-BH Natural Gas Engine
1 of 5
  • 15 HP
  • 1800 RPM
  • Stock No: 51411
Used Waukesha 135-GZU Natural Gas Engine
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Used Waukesha 135-GZU Natural Gas Engine

Used, missing intake and exhaust, has hydraulic pump pad instead of clutch DIMS: 74" L x 30 " W x 53" H Estimated Weight: 2000 lbs

Used Waukesha 135-GZU Natural Gas Engine
1 of 5
  • 110 HP
  • 2000 RPM
  • Stock No: 51415
Used Waukesha 135-GZU Natural Gas Engine
1 of 3
Used Waukesha 135-GZU Natural Gas Engine

Used missing water pump, ignition, fan, starter. Has rad, Impco, Oil Level gage DIMS: 74" L x 30 " W x 53" H Estimated Weight: 2000 lbs

Used Waukesha 135-GZU Natural Gas Engine
1 of 3
  • 110 HP
  • 2000 RPM
  • Stock No: 51412
Used Oilwell-Witte B12 RC Natural Gas Engine
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Used Oilwell-Witte B12 RC Natural Gas Engine

Single cylinder natural gas engine, 5" bore, 6" stroke, oil capacity 7qts

Used Oilwell-Witte B12 RC Natural Gas Engine
1 of 5
  • 12 HP
  • 1000 RPM
  • Stock No: 51288
Used Cummins NH220 Natural Gas Engine
1 of 7
Used Cummins NH220 Natural Gas Engine

Used inline 6 cylinder natural gas engine, came with rad, Magtronic ignition, Impco 200 carb, Murphy guages, SBM # 85213

Used Cummins NH220 Natural Gas Engine
1 of 7
  • 160 HP
  • 1800 RPM
  • Stock No: 50874
Used Oilwell-Witte 98-RC Natural Gas Engine
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Used Oilwell-Witte 98-RC Natural Gas Engine

Used Oilwell-Witte 98-RC Pumpjack engine with following features: • 9 HP • 1200 RPM • 1 Cylinder, 4 stroke • 127.0 mm (5.0 in) Bore • 127.0 mm (5.0 in) Stroke • 1.60 L (98 in3) Displacement • Naturally Aspirated • CCW Rotation (from flywheel end) • Weight 710 lbs (dry weight, engine only) • Dims

Used Oilwell-Witte 98-RC Natural Gas Engine
1 of 5
  • 9 HP
  • 1200 RPM
  • Stock No: 50989