D0200-A-531 Diesel Engine Piston for Yuchai Weichai 4108ZQX Truck Tractor Heavy Duty Machinery

Product Details

Product Overview

This high-quality diesel engine piston, identified by part numbers D0200-A-531 and D30-531, is specifically engineered for the 4108ZQX and 4108 series diesel engines. Manufactured by, this component is designed to meet the rigorous demands of heavy-duty applications, including tractors, trucks, and construction machinery.

While commonly used as a replacement part for Yuchai, Weichai, and YTO engine platforms, it is crucial to verify compatibility with your specific engine block and connecting rod assembly. This piston is available in standard size (STD) or custom dimensions to suit varied rebuilding requirements.

Key Features & Benefits

• Precision Engineering: Manufactured to strict tolerances for a perfect fit within the 4108ZQX cylinder bore, ensuring optimal compression and combustion efficiency.
• Durable Material Construction: Crafted from a premium aluminum alloy with a steel-top ring carrier, this piston withstands extreme temperatures and pressures, reducing the risk of thermal fatigue and cracking.
• Enhanced Wear Resistance: The advanced surface treatment minimizes friction between the piston skirt and cylinder liner, prolonging service life and reducing engine downtime.
• Direct Replacement Fit: Designed as a drop-in replacement for the original OEM parts (D0200-A-531 / D30-531), simplifying the installation process for mechanics and repair shops.
• Versatile Application: Suitable for both naturally aspirated and turbocharged 4108 series engines, making it a flexible solution for various heavy-duty equipment.
• Custom Sizing Available: In addition to standard size, we offer oversized options to accommodate engine reboring, providing a perfect match for your specific rebuild needs.

Technical Specifications

OEM Cross-Reference

This piston directly replaces the following OEM and reference numbers:

• Primary Part Number: D0200-A-531
• Alternate Number: D30-531

These numbers are commonly associated with Yuchai and Weichai 4108 series engine platforms. Please confirm your existing part number before ordering to ensure a correct match.

Compatibility

This piston is designed for use in the following applications. Fitment is inferred based on standard OEM specifications; always verify with your engine serial number.

• Engine Models: Yuchai 4108ZQX, Weichai 4108 series, YTO 4108 series
• Vehicle/Equipment Applications: Tractors, Trucks, Heavy-Duty Machinery, Construction Equipment
• Engine Type: 4-cylinder, 4-stroke, Diesel, Turbocharged or Naturally Aspirated

Global Supply & Distribution

We maintain a robust global supply chain to ensure fast and reliable delivery to international buyers. Our export experience covers major industrial markets including:

• North America: Regular shipments to ports in the USA, Canada, and Mexico.
• Europe: Efficient logistics to Germany, the Netherlands, UK, and Eastern European markets.
• Asia-Pacific: Direct delivery to Australia, Indonesia, Thailand, and Vietnam.
• Middle East & Africa: Established routes to UAE, Saudi Arabia, South Africa, and Nigeria.
• South America: Shipping to Brazil, Argentina, and Chile.

We offer flexible shipping options including sea freight, air express, and rail, with professional customs clearance support. All orders are packed securely in neutral cartons, brand boxes, or wooden cases to prevent damage during transit.

Quality Assurance

Every piston undergoes rigorous quality control procedures to ensure reliability and performance. Our manufacturing process includes:

• Material Verification: Spectrometer analysis of aluminum alloy composition.
• Dimensional Inspection: CNC coordinate measuring machines (CMM) check critical dimensions.
• Surface Finish Testing: Verification of ring groove and skirt surface quality.
• Hardness Testing: Confirmation of material strength and durability.

We provide a 6-month to 1-year warranty against manufacturing defects, depending on the specific application and usage conditions. Video outgoing inspection and machinery test reports are available upon request to provide full transparency.

FAQ

Q: Is this piston a direct replacement for the original Yuchai 4108 piston?
A: Yes, part numbers D0200-A-531 and D30-531 are standard OEM references for Yuchai 4108ZQX engines. However, we recommend comparing the piston dimensions (diameter, pin height, and ring configuration) with your original part to ensure a perfect fit, especially if your engine has been previously rebored.

Q: Can I use this piston in a turbocharged Weichai 4108 engine?
A: Yes, this piston is designed for both turbocharged and naturally aspirated 4108 series engines. The steel-top construction provides the necessary heat resistance for turbocharged applications. Always use the correct piston ring set and follow manufacturer torque specifications during installation.

Q: What maintenance is required after installing a new piston?
A: After installation, run the engine at low RPM for the first 50 hours to allow the piston rings to seat properly. Check and adjust valve clearances as needed. Monitor oil consumption and compression during the break-in period. For optimal longevity, use high-quality diesel engine oil and replace oil filters at recommended intervals.