Yuchai 4108Q-D30 Piston D30-531 | Diesel Engine Parts for Yuchai Machinery

Product Details

Product Overview

This Yuchai 4108Q-D30 Piston D30-531 is a high-precision, direct replacement component designed specifically for Yuchai 4108 series diesel engines. Manufactured to strict OEM standards, this piston is essential for maintaining compression, power output, and fuel efficiency in heavy-duty machinery. We provide global shipping with reliable logistics to major industrial markets, including North America, Europe, Southeast Asia, the Middle East, and Africa. Our pistons are engineered for demanding applications in construction, agriculture, and material handling equipment.

Key Features & Benefits

• OEM Standard Manufacturing: Precision-machined to match Yuchai’s exact specifications for a perfect, drop-in fit without modifications.
• Superior Durability: Constructed from high-strength aluminum alloy with a reinforced skirt design to withstand high combustion pressures and thermal stress.
• Enhanced Compression: The optimized ring groove design and crown profile ensure excellent compression sealing, maximizing engine power and reducing blow-by.
• Wear Resistance: Features a hardened top ring carrier and advanced surface treatment to minimize friction and extend service life in harsh operating conditions.
• Reliable Performance: Tested for dimensional accuracy, hardness, and thermal stability to ensure consistent performance and long-term reliability for your Yuchai engine.

Technical Specifications

OEM Cross-Reference

This piston is a direct replacement for the following OEM part numbers:

• Yuchai Part Number: D30-531
• Yuchai Part Number: D30-531-01 (Alternative)
• Yuchai Part Number: 4108Q-D30 Piston

Note: Always verify your engine’s specific model and serial number to ensure compatibility. Contact our technical support team for assistance with cross-referencing.

Compatibility

This piston is specifically designed for the following engine and applications:

• Engine: Yuchai 4108Q-D30, Yuchai 4108 Series
• Vehicle/Equipment Applications:
  • Yuchai-powered diesel generators
  • Yuchai-powered construction machinery (wheel loaders, bulldozers)
  • Yuchai-powered agricultural tractors and harvesters
  • Yuchai-powered marine engines
• Year Range: Generally compatible with engines manufactured from the early 2000s to present. Please confirm with your engine serial number.

Global Supply & Distribution

We are a leading supplier of Yuchai engine parts with a robust global distribution network. We offer:

• Worldwide Shipping: We ship to over 60 countries via air, sea, and express courier (DHL, FedEx, UPS, TNT).
• Major Markets Served:
  • North America: USA, Canada, Mexico
  • Europe: Germany, UK, France, Italy, Netherlands, Poland
  • Asia-Pacific: China, Indonesia, Vietnam, Thailand, Philippines, Australia
  • Middle East & Africa: UAE, Saudi Arabia, South Africa, Nigeria, Kenya
  • South America: Brazil, Chile, Peru, Colombia
• Fast Delivery: Stock items are dispatched within 24-48 hours. Express shipping reaches major industrial hubs (e.g., Shanghai, Dubai, Rotterdam, Los Angeles) in 3-7 business days.
• Trade Compliance: We have extensive export experience and ensure all shipments comply with international trade regulations and customs requirements.

Quality Assurance

Our pistons are manufactured in ISO 9001:2015 certified facilities. Each piston undergoes rigorous quality control checks, including:

• Dimensional Inspection: 100% inspection of critical dimensions (diameter, pin bore, ring groove width) using CMM (Coordinate Measuring Machine).
• Material Analysis: Spectrometer testing to verify alloy composition and hardness.
• Visual & Surface Finish Check: Inspection for casting defects, machining marks, and surface integrity.
• Performance Testing: Samples from each production batch are tested for thermal expansion and wear resistance.
• Certification: We provide a Material Test Certificate (MTC) upon request. Our products are backed by a 12-month warranty against manufacturing defects.

FAQ

Q1: Is this piston a direct replacement for the Yuchai 4108 engine?
A1: Yes, the D30-531 piston is designed for a direct, drop-in fit into the Yuchai 4108Q-D30 engine. It matches the OEM specifications for diameter, compression height, pin bore, and ring groove dimensions. No modifications or special tools are required for installation.

Q2: What is the recommended installation procedure and maintenance for this piston?
A2: We recommend following the Yuchai service manual for your specific engine model. Key steps include: carefully cleaning the cylinder bore, lubricating the piston and rings with clean engine oil, using a proper ring compressor, and torquing the connecting rod bolts to the specified value. After installation, perform a proper engine break-in procedure. Regular oil and filter changes are crucial for piston longevity.

Q3: How can I confirm this piston will fit my specific engine?
A3: To ensure perfect compatibility, please check your engine’s model plate for the exact model number (e.g., 4108Q-D30) and the engine serial number. You can also compare the dimensions of your old piston with the new D30-531 part. If you are unsure, please contact our technical support team with your engine details, and we will help you verify the fitment.