V3800 072120499 072123347 072125391 072127779 Engine Crankshaft Compatible with Kubota

1. Product Overview & Wholesale Price Range

The V3800 Forged Steel Engine Crankshaft (OEM Part # 072120499 / 072123347 / 072125391 / 072127779) is core rotating power component for V3800 diesel engine, engineered for continuous heavy‑load operation of forklift, tractor and industrial equipment.

• Factory Wholesale Price: $340 – $620 USD Direct factory pricing for engine overhaul workshops
• Material Specifications: High‑strength forged steel, journals with high‑frequency hardening, excellent wear‑resistance and anti‑fatigue performance
• MOQ & Bulk Discount: 1 Unit, preferential terms for full‑set engine overhaul bulk orders
• Lead Time: 1‑3 working days, abundant stock supports worldwide shipment
• Warranty: 12‑month replacement warranty, dynamic balance test and crack inspection before packing

2. Application Worksite Checklist

Manufactured for high‑torque heavy‑load operating conditions:

• Forklift & Farm Machinery Repair: Direct replacement for scored, worn or fractured original crankshaft during V3800 diesel engine overhaul service.
• Construction & Agricultural Equipment: Fits machines powered by V3800 engine, reduces engine vibration and extends bearing service life.
• Engine Rebuild Workshop: Strictly follow original dimension standard, no modification needed for installation.
• Global Parts Distributor: Stable batch supply, complete QC documents support overseas resale business.

3. Common Crankshaft Failure Troubleshooting

• Fault 1: Journal Scoring & Wear Groove
  Cause: Impurities in engine oil scratch shaft journal surface.
  Solution: Install brand‑new V3800 forged crankshaft, replace oil filter and clean engine oil circuit at the same time.
• Fault 2: Main Bearing Burn‑out & Engine Knocking Noise
  Cause: Long‑time heavy‑load operation leads to bearing clearance out of tolerance.
  Solution: Fit new V3800 crankshaft matched with corresponding main and connecting rod bearing shells.
• Fault 3: Crankshaft Fatigue Crack Risk
  Cause: Engine overloading and sudden mechanical impact shock.
  Solution: Our reinforced forged V3800 crankshaft, every piece passes non‑destructive crack detection before delivery.
• Fault 4: Front & Rear Oil Seal Recurrent Oil Leakage
  Cause: Wear groove formed on oil seal journal, oil leakage remains after replacing oil seals.
  Solution: Replace complete new crankshaft together with matching oil seal kits.

4. Matching Engine Spare Parts Recommendation

5. Frequently Asked Questions

Q1: How can I confirm this V3800 crankshaft fits my engine?
A: Please confirm your engine model is V3800, cross‑reference OEM casting numbers 072120499,072123347,072125391,072127779. Send engine serial number for quick fitment verification.

Q2: What manufacturing process for this V3800 crankshaft?
A: It is forged steel crankshaft, main and rod journals are high‑frequency induction hardened to gain excellent wear‑resistance for heavy‑load working scenarios.

Q3: What quality tests are performed before shipment?
A: Each V3800 crankshaft completes dimension inspection, dynamic balance test and crack visual check before packing to eliminate potential operating risks.