4BT 133425 133427 133450 133452 862456152 862464356 862468405 862470459 Engine Crankshaft Compatible with Aftermarket Diesel Engine

1. Product Overview & Wholesale Price Range

The 4BT Forged Steel Engine Crankshaft (OEM Part # 133425 / 133427 / 133450 / 133452 / 862456152 / 862464356 / 862468405 / 862470459) is core rotating power component for 4BT diesel engine, engineered for continuous heavy‑load operation of truck, generator and industrial equipment.

• Factory Wholesale Price: $310 – $580 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:

• Truck & Generator Repair: Direct replacement for scored, worn or fractured original crankshaft during 4BT diesel engine overhaul service.
• Construction & Industrial Equipment: Fits machines powered by 4BT 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 4BT 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 4BT 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 4BT 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 4BT crankshaft fits my engine?
A: Please confirm your engine model is 4BT, cross‑reference OEM casting numbers 133425,133427,133450,133452,862456152,862464356,862468405,862470459. Send engine serial number for quick fitment verification.

Q2: What manufacturing process for this 4BT 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 4BT crankshaft completes dimension inspection, dynamic balance test and crack visual check before packing to eliminate potential operating risks.