3116 3126 C7 CAT Crankshaft Heavy Duty Machinery Engine Parts 2715658

Heavy-duty machinery engine parts CAT 3116 3126 C7 Crankshaft 271-5658 2715658

This 3116 crankshaft is a trusted aftermarket rotating core for CAT 3116 6-cylinder diesel engines, widely deployed on excavators, heavy trucks, marine vessels and generator units. It is manufactured from high-strength forged steel or nodular cast iron. All main journals and crank pin journals are precision ground and nitrided to increase surface hardness and combat abrasion. Reinforced fillet area effectively resists fatigue cracking under continuous variable loads. Each crankshaft undergoes dynamic balance testing and full dimensional verification before packing. Tight machining tolerances help minimize vibration, protect bearings and sustain stable power output in harsh working environments. It is a reliable choice for overhaul workshops and bulk buyers for construction and marine fleets.

✅ Nitrided journals for long wear life

✅ Reinforced fillet against fatigue fracture

✅ 100% balance & dimension inspection

✅ Direct fit, easy assembly

✅ Suitable for on-road & off-road equipment

3116 Crankshaft for CAT

• Fit: 3116 diesel engine
• Material: Forged steel / nodular cast iron
• Process: Journal grinding + nitriding + fillet rolling
• Test: Dynamic balance & dimensional inspection
• Usage: Excavator, truck, marine & genset overhaul
• Feature: Anti-crack, low vibration, durable for heavy duty

• Item	Specification
  Product Name	Engine Crankshaft
  Engine Model	CAT 3116
  OE Reference	107-0949, 115-5852
  Material	Forged Steel / Ductile Nodular Cast Iron
  Surface Treatment	Precision Grinding + Nitriding
  Inspection Items	Dynamic Balance Test, Dimension Check, Fillet Inspection
  Cylinder	6 Cylinder Diesel Engine
  Application	Excavator, Heavy Truck, Marine, Generator Set
  Product Type	Aftermarket Replacement Spare Part