Yuchai - yc4e140-33 factory

The Yuchai YC4E140-33 is a 4-cylinder, in-line, water-cooled diesel engine with a rated power of 140HP (103kW). It features a turbocharged and intercooled aspiration system and operates with a displacement of 4.257L. It is designed to meet Euro III (National III) emission standards, making it a reliable workhorse for medium-duty trucks and construction machinery.

To ensure you are purchasing an original unit, verify the engine nameplate for a unique 12-digit serial number. Cross-reference this number with Yuchai's official database. Additionally, check for the anti-counterfeiting QR codes and ensure the casting marks on the cylinder block are crisp and clear, as counterfeit 'factory' units often have blurred logos or inconsistent paint finishes.

This engine is primarily used in 6-9 meter passenger buses, 8-12 ton cargo trucks, and specialized agricultural machinery. When sourcing, you must confirm technical compatibility regarding the flywheel housing size (SAE standards), the electrical system voltage (12V vs 24V), and the gearbox interface to ensure seamless integration into your existing vehicle fleet.

Longevity is dependent on using high-quality fuel filters to protect the mechanical pump or common rail system from impurities. The oil should be changed every 10,000 to 15,000 kilometers using CH-4 grade or higher diesel engine oil. Buyers should prioritize suppliers who provide a comprehensive O&M (Operation and Maintenance) manual in English.

The biggest risks include shipping damage (corrosion or physical impact) and specification mismatch. Always insist on VCI (Volatile Corrosion Inhibitor) packaging and vacuum sealing. Furthermore, use Made-in-China.com's Secured Trading services to ensure that funds are only released after the third-party inspection (such as SGS or BV) confirms the engine model and condition match the Proforma Invoice.

Focus on Total Cost of Ownership (TCO) rather than just the unit price. Negotiate for wearing parts kits (filters, belts, gaskets) to be included in the bulk price. For orders exceeding 5-10 units, request a 2-5% discount or an extension of the warranty period to 18 months, which provides a significant safety net for overseas buyers.

Engines are classified as Class 9 Hazardous Materials if they contain residual fuel or oil. Ensure the factory provides a Non-Hazardous Declaration and a clean-out certificate. For shipping to regions like Africa or Southeast Asia, verify the HS Code (typically 840820) to calculate accurate import duties and ensure the engine meets the local environmental import age restrictions.

Prioritize Audited Suppliers on Made-in-China.com who have undergone on-site factory verification. Always request a video walk-through of the warehouse showing the specific engine serial numbers intended for your shipment. Avoid direct wire transfers to private accounts; always use corporate bank accounts verified by the platform to prevent fraud.