Ajax Pumpjack Engines For Sale

180 Results

Item Brand, Model{{search.sorting.directionIcon('item-brand-model')}}

Featured Item

1 of 39

Rebuilt Caterpillar 3612 Diesel Engine

Rebuilt Caterpillar 3612 diesel engine with following features: • 4720 HP • 900 RPM • V12 Cylinder, 4 stroke • 280.0 mm (11 in) Bore • 300.0 mm (11.8 in) Stroke • 221.7 L (13527 in3) Displacement • Turbocharged (air to air aftercooled) Aspiration • CCW Rotation (from flywheel end) • Flywheel housing • Electric starting system • Weight 55,300 lbs (dry weight, engine only) • Dims (180”L x 67”W x 127” H)

1 of 39

4720 HP
900 RPM
Stock No: 58262

Featured Item

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

1 of 3

42 HP
300-525 RPM
Stock No: 52830

Featured Item

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

1 of 3

30 HP
300-525 RPM
Stock No: 52818

Featured Item

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

1 of 3

30 HP
350-650 RPM
Stock No: 52817

Featured Item

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

1 of 4