Komatsu crankshaft YM129902-21000 YM12990221000 4D94LE crankshaft 4D98E crankshaft 4D94LE-2Z-BB crankshaft 4D98E-1A-TR crankshaft Komatsu engine crankshaft

◆ Product Overview
A high-quality, precision-engineered crankshaft designed for Komatsu 4D94LE (including 4D94LE-2Z-BB) and 4D98E (including 4D98E-1A-TR & 4D98E-1C) diesel engines. Manufactured as a direct OEM replacement for part numbers YM129902-21000 and YM12990221000, this crankshaft ensures reliable performance, durability, and seamless compatibility in industrial and machinery applications.

◆ OEM Part Numbers
✓ YM129902-21000
✓ YM12990221000

◆ Compatible Engine Series
✓ Komatsu 4D94LE / 4D94LE-2Z-BB
✓ Komatsu 4D98E / 4D98E-1A-TR / 4D98E-1C

◆ Product Specifications
✓ Condition: 100% Brand New
✓ Material: High-Strength Forged Steel
✓ Engine Models: 4D94LE & 4D98E Series
✓ Finish: Precision Ground, Hardened & Micro-Polished

◆ Key Features
✓ Direct OEM Replacement for 4D94LE & 4D98E Engine Families
✓ Forged Steel Construction for Enhanced Fatigue & Wear Resistance
✓ Optimized for Smooth Operation & High Torque in Industrial Applications
✓ Restores Original Engine Performance, Efficiency & Service Life

◆ Quality Assurance
✓ 100% New Production – Not Remanufactured
✓ Full Dimensional & Material Compliance Verified
✓ Non-Destructive Testing (NDT) & Hardness Testing Passed
✓ Dynamically Balanced to Komatsu Specifications

◆ Installation Applications
✓ Complete Overhaul of 4D94LE & 4D98E Series Engines
✓ Crankshaft Replacement in Industrial Machinery & Equipment
✓ Generator & Pump Set Engine Repairs
✓ Fleet Maintenance for Komatsu-Powered Industrial Applications

◆ Service Advantages
✓ Ensures Reliable Performance Across Multiple Engine Variants
✓ Simplified Sourcing with Exact OEM Part Number Match
✓ Reduces Downtime with Direct Bolt-In Installation
✓ Supported by Global Industrial Engine Parts Networks