NT855 Forged Steel Engine Crankshaft 3023780 for Heavy‑Duty Excavator Truck Diesel Engine

1. Product Overview & Wholesale Price Range

The NT855 Forged Steel Crankshaft (Part # 3023780) is heavy‑duty forged alloy steel main shaft for Cum mins NT855 6‑cylinder diesel engine, widely fitted on heavy‑duty trucks, construction machinery and excavators.

• Factory Wholesale Price: $1180‑1850 USD Direct factory supply, favorable price for repair shops and distributors
• Material: Forged Alloy Steel, journal high‑frequency quenching HRC55‑60
• MOQ: 1 Unit, bulk discount for large quantity orders
• Stock Lead‑time: In stock, 1‑3 working days dispatch for worldwide customers
• Warranty: 12‑month replacement warranty, dynamic balance & magnetic particle crack inspection before shipment

2. Engine & Application Compatibility List

Perfect fit for Cum mins NT855 diesel engine, applied on multiple heavy‑duty equipment:

• Engine Model: Cum mins NT855
• OEM Part Number: 3023780
• Applications: Heavy‑duty trucks, mining machinery, excavators, generator sets

3. Common NT855 Crankshaft Failure Phenomena

• Journal scratch & wear: Dirty engine oil causes journal damage. Install brand‑new forged crankshaft instead of reused reground shaft.
• Engine knocking & bearing burning: Long‑time heavy load operation leads to bearing failure. Replace crankshaft together with full bearing set.
• Crankshaft fatigue crack: Overload working condition. Adopt qualified forged crankshaft to avoid fracture risk.
• Shaft‑end oil seal leakage: Wearing groove on shaft sealing position. Match with new oil seal kits while changing crankshaft.
• Abnormal engine vibration: Shaft bending or imbalance. Only use fully dynamically balanced crankshaft.

4. Related Popular Diesel Engine Spare Parts

5. Frequently Asked Questions

Q1: How can I confirm this crankshaft suits my NT855 engine?
A: Verify engine model NT855 and OEM number 3023780. You can send engine serial number for cross‑check compatibility.

Q2: What quality tests are completed before delivery?
A: Each NT855 crankshaft passes dynamic balance test and magnetic particle crack inspection to eliminate hidden defect risk for heavy‑load working scenarios.

Q3: Can you provide complete overhaul kits for NT855 engine?
A: Yes, piston kits, bearing shells, cylinder liners and full overhaul kits are available to support one‑stop purchasing for engine rebuild projects.