4D31 ME013660 Engine Crankshaft Compatible with Construction Machinery Engine

1. Product Overview & Wholesale Price Range

The 4D31 Engine Crankshaft (Part # ME013660) is made of high‑strength forged steel blank. Adopts precision journal grinding and surface quenching heat‑treatment. Strict dimensional tolerance, dynamic balance test and non‑destructive crack inspection ensure reliable heavy‑duty running performance.

• Factory Wholesale Price: $340‑470 USD / piece Direct factory supply, bulk discount for repair shops and machinery distributors
• Material: Forged Steel, journal precision grinding, surface quenching, dynamic balance & crack inspection
• MOQ: 1 Piece, preferential price for bulk purchasing
• Stock Lead‑time: In stock, 1‑3 working days dispatch for global clients
• Warranty: 12‑month replacement warranty, multi‑item quality check before shipment

2. Engine & Application Compatibility List

Direct replacement for 4D31 diesel engine, widely fitted for heavy‑duty construction machinery:

• Engine Model: 4D31
• OEM Part Number: ME013660
• Structure: Forged engine crankshaft assembly
• Applications: Excavators, wheel loaders and other heavy‑duty construction equipment

3. Common Crankshaft Failure Modes

• Journal scratch & wear: Caused by poor lubrication or contaminated engine oil. Replace crankshaft once wear value exceeds tolerance limit.
• Bending & twisting deformation: Triggered by engine seizure or piston impact. Straightening brings hidden risk, new forged crankshaft is recommended for overhaul.
• Fatigue crack: Formed under long‑term cyclic heavy‑load. Each crankshaft will pass crack detection before delivery to prevent shaft fracture.
• Oil‑seal position abrasion: Will result in engine oil leakage, inspect oil‑seal journal surface during engine repair work.
• Counterweight defect: Causes abnormal vibration and loud noise. Whole crankshaft assembly needs replacement once counterweight is damaged.

4. Matching Diesel Engine Spare Parts

5. Frequently Asked Questions

Q1: How do I verify this crankshaft fits my 4D31 engine?
A: Cross‑check OEM number ME013660. Send us your engine serial number for compatibility confirmation before you place order.

Q2: What quality inspections are carried out before shipment?
A: Every crankshaft will go through dimension measuring, journal surface inspection, dynamic balance test and non‑destructive crack detection for reliable heavy‑load application.

Q3: Can you provide complete overhaul spare‑parts for 4D31 engine?
A: Yes, connecting rods, piston kits, bearing shells and full overhaul kits can be supplied for one‑stop engine rebuild procurement.