• Cast iron power frame
• Heavy-duty roller crankshaft bearings
• Cast iron crossheads with upper/lower oil grooves
• Stainless steel extension rods
• Precision type crankpin bearings
• Ductile iron connecting rods
• Alloy steel crosshead pins
• Bronze bearing crosshead pin bushings
• Flooded sump, splash distribution lubrication
• Rated rod load is 4370 lbs.