Komatsu connecting rod 6207-31-3101 6206-31-3101 4D95 6D95 engine PC60 PC100 PC200 PC200-5 China supplier

◆ Product Overview
Genuine Komatsu connecting rod assemblies, part numbers 6207-31-3101 and 6206-31-3101, designed for Komatsu 4D95 and 6D95 series diesel engines. These critical engine components are supplied as brand new OEM-specification parts, ensuring exact fit, proper balance, and reliable performance for Komatsu PC60, PC100, PC200, PC200-5 excavators and compatible equipment.

◆ Supplier Profile
✓ Type: China Authorized Komatsu Engine Parts Specialist
✓ Focus: Komatsu D95 Series Engine Internal Components
✓ Services: Genuine Parts Supply, Technical Consultation, Small & Bulk Orders
✓ Market: Global Komatsu Dealers, Engine Rebuilders, Equipment Repair Shops
✓ Certification: ISO 9001:2015 Quality Management System Certified

◆ Part Specifications & Compatibility
✓ OEM Part Numbers:

• 6207-31-3101 (Primary Application)

• 6206-31-3101 (Compatible/Variant)
  ✓ Part Name: Connecting Rod Assembly (Complete with Bearings & Bolts)
  ✓ Compatible Engine Models:

• Komatsu 4D95 Engine (4-Cylinder)

• Komatsu 6D95 Engine (6-Cylinder)
  ✓ Machine Applications:

• Komatsu PC60 Series Excavators

• Komatsu PC100 Series Excavators

• Komatsu PC200 Series Excavators

• Komatsu PC200-5 Excavator

• Other Komatsu equipment using 4D95/6D95 engines
  ✓ Condition: 100% New OEM-Specification Parts

◆ Product Features & Specifications
✓ Material Composition: High-strength forged alloy steel
✓ Manufacturing Process: Precision forging, CNC machining, heat treatment
✓ Design Features: I-beam construction for optimal strength and weight ratio
✓ Included Components:

• Connecting rod body

• Connecting rod cap

• High-tensile rod bolts and nuts

• Precision rod bearings (upper and lower shells)
  ✓ Quality Characteristics:

• Exact dimensional accuracy to OEM specifications

• Proper weight matching for engine balance

• Precision bearing surfaces for optimal oil film retention

• Correct hardness and material properties

◆ Manufacturing Quality Standards
✓ Material Certification: Certified alloy steel with proper chemical composition
✓ Forging Process: Controlled forging for grain structure optimization
✓ Machining Accuracy: CNC machining within 0.01mm tolerance
✓ Heat Treatment: Controlled quenching and tempering for strength/ductility balance
✓ Surface Treatment: Phosphating or other anti-corrosion treatments
✓ Final Inspection: 100% dimensional, weight, and surface quality verification

◆ Technical Specifications
✓ Center-to-Center Length: Precise specification matching original design
✓ Big End Diameter: Exact dimension for proper bearing fit and clearance
✓ Small End Diameter: Precision sized for piston pin fit
✓ Weight Class: Marked for proper piston/rod assembly matching
✓ Bolt Specifications: High-grade bolts with defined torque/tension characteristics

◆ Complete Kit Contents
✓ Connecting rod (forged and machined body)
✓ Matching rod cap
✓ High-strength connecting rod bolts (2 per rod)
✓ Matching nuts (where applicable)
✓ Precision rod bearing shells (upper and lower)
✓ Protective packaging to prevent damage

◆ Installation Requirements & Recommendations
✓ Professional Installation: Critical component requiring skilled technician installation
✓ Required Tools: Torque wrench, micrometer, plastigage, cleaning solvents
✓ Installation Procedure:

1. Thorough cleaning of all components

2. Verification of bearing clearances

3. Proper lubrication of bearing surfaces

4. Correct bolt torque sequence and specification adherence
   ✓ Best Practices:

• Replace in complete sets (all rods in engine)

• Verify piston pin fit during assembly

• Check crankshaft journal condition before installation

• Follow Komatsu factory service manual procedures

◆ Quality Assurance Process
✓ Dimensional Verification: All critical dimensions checked against master specifications
✓ Material Testing: Chemical composition and mechanical property verification
✓ Surface Inspection: Bearing surface finish and geometry verification
✓ Weight Matching: Weight classification to ensure engine balance
✓ Documentation: Material certificates and inspection reports available upon request

◆ Supply & Logistics
✓ Availability: Regular stock maintained for quick shipment
✓ Order Options: Available as single rods or complete engine sets
✓ Packaging: Individual protective packaging to prevent shipping damage
✓ Shipping: Worldwide delivery via air or sea freight with tracking
✓ Minimum Order: No minimum quantity – single parts available
✓ Lead Time: Typically 7-15 days for standard orders

◆ Common Applications
✓ Engine Overhaul: Essential component during complete engine rebuild
✓ Preventive Maintenance: Replacement during scheduled major service intervals
✓ Repair Operations: Replacement of damaged or worn connecting rods
✓ Performance Restoration: Critical for restoring proper engine compression and power output

◆ Customer Support Services
✓ Technical Specifications: Detailed dimensional drawings available
✓ Application Verification: Assistance confirming correct part for your engine serial number
✓ Installation Guidance: Basic procedures and torque specifications provided
✓ Bulk Order Support: Competitive pricing and logistics for quantity orders
✓ Quality Documentation: Material certifications and test reports available

◆ Important Usage Notes
✓ Critical Component: Connecting rods are safety-critical parts – never use damaged or questionable components
✓ Proper Storage: Store in clean, dry conditions with protective coating intact
✓ Pre-Installation: Always verify all dimensions and clearances before installation
✓ Torque Procedure: Follow exact torque specifications and sequences – do not estimate
✓ Bearing Clearance: Always verify bearing clearance with proper measuring tools