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
HP: 42
RPM: 300-525