Komatsu 6D170 SAA6D170E Piston 68x126mm Pin 147mm High 6245-31-2110 Engine Parts

Product Details

Product Overview

This high-quality piston is engineered specifically for Komatsu 6D170 and SAA6D170E diesel engines, offering a direct replacement solution for heavy-duty machinery. Manufactured to OEM specifications, this piston features a diameter of 68mm, a pin height of 147mm, and a total length of 126mm, ensuring precise fitment and reliable performance in demanding working conditions.

As a critical component within the engine’s combustion system, this piston is designed to withstand extreme temperatures and pressures while maintaining dimensional stability. The part number 6245-31-2110 corresponds directly to Komatsu’s original equipment specifications, making it a trusted choice for maintenance, repair, and overhaul operations in construction, industrial, agricultural, marine, and generator set applications.

Sourced from a reputable Chinese manufacturer with ISO-compliant production facilities, this piston provides an excellent balance between quality and cost-effectiveness for B2B buyers seeking reliable engine components for their fleet maintenance needs.

Key Features & Benefits

• OEM Specification Compliance: Manufactured to match original Komatsu 6D170 and SAA6D170E piston dimensions (68mm diameter, 126mm length, 147mm pin height) for guaranteed fitment confidence.
• Premium Material Construction: High-strength alloy composition designed to resist thermal fatigue and mechanical stress during extended operation periods.
• Precision Engineering: CNC-machined surfaces with tight tolerances ensure optimal cylinder wall contact and compression seal integrity.
• Enhanced Durability: Advanced heat treatment process improves wear resistance and extends service life compared to standard aftermarket components.
• Complete Traceability: Each piston includes batch tracking information and passes through rigorous quality control checkpoints during production.
• Versatile Application: Suitable for multiple sectors including construction equipment, industrial machinery, agricultural tractors, marine propulsion, and generator sets.
• Cost-Effective Solution: Significant savings compared to OEM dealer pricing while maintaining equivalent performance standards.

Technical Specifications

OEM Cross-Reference

This piston directly replaces the following OEM part numbers:

• Komatsu Original: 6245-31-2110
• Komatsu Alternative: 6245-31-2120 (where applicable)

Note: Always verify your engine serial number and existing piston dimensions before ordering. Cross-reference with your equipment’s parts manual for complete accuracy.

Compatibility

This piston is commonly used for the following Komatsu engine models and applications:

• Engine Models: 6D170, SAA6D170E
• Typical Applications: Construction equipment, industrial machinery, agricultural tractors, generator sets, marine engines, material handling equipment
• Common Machinery: Komatsu bulldozers, excavators, wheel loaders, and other heavy equipment powered by 6D170 or SAA6D170E engines

Fitment confirmation: Please verify your specific engine model and part number before purchasing. Contact our technical support team for application assistance.

Global Supply & Distribution

We maintain extensive inventory and offer worldwide shipping to support B2B customers across all major markets. Our distribution network covers:

• North America: Fast delivery to US ports (Los Angeles, Houston, New York) and Canadian industrial centers (Toronto, Vancouver, Montreal)
• Europe: Regular shipments to Rotterdam, Hamburg, Antwerp, and major inland distribution hubs
• Asia-Pacific: Direct shipping to Singapore, Japan, South Korea, Australia, and Southeast Asian markets
• Middle East & Africa: Reliable delivery to UAE, Saudi Arabia, South Africa, and key regional ports
• Latin America: Service to Brazil, Chile, Argentina, and other industrial markets

We provide comprehensive export documentation, including commercial invoices, packing lists, and certificates of origin. Air freight and express courier options available for urgent orders. Our logistics team coordinates with major carriers to ensure timely delivery and proper handling of engine components.

Quality Assurance

Every piston undergoes strict quality control procedures throughout the manufacturing process:

• Material Certification: Raw materials are tested for chemical composition and mechanical properties before production
• Dimensional Inspection: CNC coordinate measuring machines verify all critical dimensions against OEM specifications
• Surface Quality Check: Visual inspection and surface finish measurement ensure defect-free components
• Hardness Testing: Rockwell hardness testing confirms proper heat treatment application
• Machinery Test Report: Provided with each order for quality verification
• Video Outgoing Inspection: Available upon request for visual confirmation before shipment

Warranty: 6-month warranty against manufacturing defects. After-warranty online technical support available for installation guidance and troubleshooting.

FAQ

Q1: How do I verify this piston will fit my Komatsu engine?

Check your engine’s model number (6D170 or SAA6D170E) and confirm the existing piston dimensions. Measure the diameter (68mm), pin height (147mm), and overall length (126mm). Compare with your original part number 6245-31-2110. If you have any doubts, contact our technical team with your engine serial number for verification.

Q2: What preparation is needed before installing this piston?

Ensure the cylinder bore is within specification and properly honed. Clean all components thoroughly and lubricate piston rings and cylinder wall with assembly oil during installation. Use a proper ring compressor to avoid ring damage. Verify ring end gap clearance according to engine service manual specifications. Always replace piston pin and retainers when installing new pistons.

Q3: How should I store spare pistons before installation?

Store pistons in a clean, dry environment away from moisture and extreme temperature fluctuations. Keep them in their original packaging until ready for installation. Apply light rust-preventive oil if storing for extended periods. Avoid stacking heavy items on top of piston boxes to prevent deformation. Ideal storage temperature range is 10-30°C with relative humidity below 60%.