6D125 Flywheel Gear 148T 6150-31-1341 for Komatsu Engine Parts Excavator

Product Details

Product Overview

This is a high-precision Flywheel Gear (148 Teeth) specifically designed for the Komatsu 6D125 diesel engine. As a critical drivetrain component, this gear ensures reliable engagement with the starter motor to deliver consistent engine cranking performance. The part number 6150-31-1341 is a direct OEM reference, guaranteeing dimensional accuracy and material compatibility for heavy-duty applications.

Manufactured as a direct replacement for Komatsu engine systems, this flywheel gear is commonly used in various construction and industrial machinery. It is ideal for maintenance and repair operations on excavators, bulldozers, loaders, and forklifts that utilize the 6D125 engine platform. The 148-tooth count and OEM-specified dimensions ensure a precise fit without modification.

As a critical wear item, this flywheel gear is produced using hardened steel alloys to withstand the high torque and cyclic stresses of diesel engine start cycles. Whether you are a parts distributor, fleet manager, or equipment repair shop, this component provides a cost-effective alternative to genuine Komatsu parts while maintaining OEM-level performance standards.

Key Features & Benefits

• Direct OEM Replacement: Part number 6150-31-1341 matches original Komatsu specifications for seamless installation.
• Durable Construction: Made from high-strength alloy steel with heat treatment for extended service life in demanding environments.
• Precision Engineering: 148-tooth gear profile ensures smooth engagement with starter pinion and reduces wear on both components.
• Rigorous Quality Control: Each gear undergoes dimensional inspection and hardness testing before shipment.
• Versatile Application: Compatible with multiple machinery types including excavators, loaders, and industrial engines using the 6D125 platform.
• Cost-Effective Solution: Offers significant savings compared to OEM parts without compromising on fit or function.
• Global Compatibility: Standardized design suitable for both domestic and international equipment specifications.

Technical Specifications

OEM Cross-Reference

This flywheel gear is manufactured to replace the following original equipment manufacturer (OEM) part numbers:

• Komatsu: 6150-31-1341
• Alternate References: 6150-31-1340 (superseded), 6150-31-1342 (variant)

Note: Always verify your existing part number before ordering. While this gear matches OEM specifications, minor application variations may exist.

Compatibility

This flywheel gear is designed for the following applications:

• Engine Models: Komatsu 6D125, S6D125
• Equipment Types: Commonly used for Excavators, Bulldozers, Wheel Loaders, Forklifts, and Industrial Trucks
• Vehicle Applications: Compatible with Komatsu PC series excavators and WA series loaders utilizing the 6D125 engine

Fitment is inferred based on engine model compatibility. Please verify your specific equipment model and engine serial number before purchase.

Global Supply & Distribution

As a specialized exporter of diesel engine components, we maintain inventory for immediate dispatch to global markets. Our logistics network supports:

• Worldwide Shipping: Reliable delivery to North America, Europe, Southeast Asia, Middle East, Africa, and Oceania
• Major Ports Served: Los Angeles, Rotterdam, Shanghai, Dubai, Singapore, and Hamburg
• Fast Processing: Orders shipped within 24-48 hours for in-stock items
• Bulk Orders: Volume discounts available for fleet operators and parts distributors
• Trade Compliance: Full documentation for customs clearance including commercial invoices and packing lists

Quality Assurance

Every flywheel gear undergoes strict quality control procedures to ensure reliable performance:

• Manufacturing Standards: Produced in ISO 9001 certified facilities
• Testing: 100% dimensional inspection using calibrated gauges; hardness testing per Rockwell C scale
• Certification: Machinery Test Report and Video Outgoing Inspection provided upon request
• Warranty: 6-month warranty against manufacturing defects, covering material and workmanship issues
• Packaging: Anti-rust treatment with secure packaging to prevent transit damage

FAQ

Q: How do I confirm this 148T flywheel gear fits my Komatsu engine?
A: First, check your existing part number. If it matches 6150-31-1341 or falls within the 6150-31-134X range, this gear is compatible. Additionally, verify the tooth count (148 teeth) and engine model (6D125 or S6D125). For excavators, check the machine serial number against Komatsu parts catalogs for the specific engine variant.

Q: What maintenance should I perform when replacing the flywheel gear?
A: Always inspect the starter motor pinion gear for wear simultaneously, as worn pinions can damage new flywheel gears. Clean the mounting surface thoroughly and apply anti-seize compound to mounting bolts. Torque fasteners to manufacturer specifications (typically 100-120 Nm for Komatsu 6D125). After installation, check ring gear runout using a dial indicator (maximum 0.2mm tolerance).

Q: Can this gear be used on marine or generator applications?
A: While primarily designed for construction equipment, the Komatsu 6D125 engine is also used in marine propulsion and generator sets. The flywheel gear itself is compatible, but we recommend verifying the flywheel housing dimensions and starter motor configuration. For non-standard applications, provide your engine serial number and flywheel housing code for cross-verification.