STD 123mm Engine Piston 65.02501-0031 65.025010031 for Doosan Daewoo D2366 D2366T Excavator Truck

Product Details

Product Overview

This high-quality engine piston is a direct replacement for the OEM part numbers 65.02501-0031 and 65.025010031, specifically engineered for the Doosan Daewoo D2366 and D2366T diesel engines. With a standard (STD) size of 123mm, this piston is commonly used in a variety of heavy machinery applications, including excavators, trucks, and generator sets.

Manufactured to meet rigorous OEM specifications, this piston ensures reliable performance and long service life in demanding working conditions. It is a critical component for engine rebuilds or replacements, providing the necessary compression and durability required for commercial and industrial use.

Key Features & Benefits

• Precision Engineering: Manufactured to exact OEM specifications (65.02501-0031 / 65.025010031) for a perfect fit and reliable performance in D2366 and D2366T engines.
• High-Strength Alloy: Constructed from a specialized high-strength aluminum alloy, offering excellent thermal conductivity and resistance to wear and high pressure.
• Advanced Surface Treatment: Features a graphite-coated skirt to reduce friction, minimize scuffing, and improve cold-start performance, extending engine life.
• Standard Size (STD): This is a standard (STD) 123mm piston, ideal for routine engine overhauls where the cylinder bore is within factory tolerances.
• Versatile Application: Suitable for a wide range of Doosan Daewoo heavy equipment, including excavators, trucks, and generator sets, making it a versatile spare part for fleet maintenance.
• Rigorous Quality Control: Each piston undergoes strict inspection procedures, and a Machinery Test Report is provided to ensure compliance with quality standards.

Technical Specifications

OEM Cross-Reference

This piston is a direct replacement for the following original equipment manufacturer (OEM) numbers:

• Doosan / Daewoo: 65.02501-0031
• Doosan / Daewoo: 65.025010031

Note: Always verify your engine’s specific requirements and existing piston part number before ordering.

Compatibility

This piston is commonly used for the following applications:

• Engine Models: Doosan Daewoo D2366, D2366T (Naturally Aspirated and Turbocharged variants).
• Vehicle/Equipment Applications: Commonly used for Doosan Daewoo Excavators, Trucks, and Generator Sets that utilize the D2366 series engine.

Note: Compatibility is inferred based on the engine model and OEM part number. Please confirm fitment with your equipment’s service manual or parts catalog.

Global Supply & Distribution

We maintain a robust global supply chain to ensure fast and reliable delivery to our B2B partners worldwide. Our distribution network covers major markets including:

• North America: Serving industrial hubs in the USA, Canada, and Mexico.
• Europe: Fast shipping to ports and inland centers across the EU and UK.
• Asia-Pacific: Direct supply to Australia, New Zealand, Southeast Asia, and the Middle East.
• South America & Africa: Established logistics for key ports and industrial zones.

We offer flexible shipping options including sea freight, air freight, and express courier services to meet your project deadlines.

Quality Assurance

Our products are manufactured in ISO-certified facilities, adhering to strict international quality standards. Each piston is produced using advanced casting and machining processes to ensure dimensional accuracy and material integrity.

• Certifications: Compliance with international quality management systems.
• Testing: A Machinery Test Report is provided with each shipment, verifying critical parameters.
• Warranty: Backed by a 6 to 12-month warranty against manufacturing defects, providing peace of mind for your investment.

FAQ

Q1: How can I be sure this piston will fit my Doosan Daewoo engine?
A: This piston is specifically designed for the D2366 and D2366T engine models. To confirm fitment, please verify the OEM part number stamped on your existing piston (65.02501-0031 or 65.025010031) and measure the piston diameter (123mm STD). Cross-referencing these details with your engine’s service manual is always recommended.

Q2: What is the difference between a STD piston and an oversize piston?
A: A Standard (STD) piston is used when the engine cylinder bore is within factory specifications and has not been worn beyond tolerance. Oversize pistons (e.g., 0.50mm, 1.00mm) are used when the cylinder has been re-bored to a larger diameter during a major overhaul to remove scoring or excessive wear. This product is a STD piston.

Q3: Is the graphite coating on the piston skirt important?
A: Yes, the graphite coating is a critical feature. It reduces friction between the piston skirt and the cylinder wall during the initial break-in period and throughout the engine’s life. This minimizes scuffing, wear, and noise, while also improving fuel efficiency and cold-start performance.