Yuwei Piston (Special for Weichai WD615 Engine) Product Details

I. Product Introduction

Yuwei Piston is specially developed and manufactured for Weichai WD615 series engines, as a core component for reciprocating motion in the engine cylinder. It converts thermal energy from fuel combustion into mechanical energy, directly affecting engine power output, fuel economy and operational stability. Three core models are highlighted: 612600030011, 612600030010 and 612600030015. All comply with Weichai's original technical standards and quality control requirements, perfectly matching the structure of WD615 series engines. Suitable for heavy-duty trucks, construction machinery and other equipment equipped with this engine series, it is the preferred part for maintenance replacement and original supporting, effectively solving common piston problems such as wear, deformation and overheating, and extending the overall service life of the engine.

II. Product Positioning

Yuwei Piston is positioned as a high-end supporting and maintenance replacement part specially for Weichai WD615 series engines, focusing on the core needs of heavy machinery and commercial vehicle fields, balancing reliability, economy and adaptability. It serves three core scenarios: original supporting supplement for Weichai WD615 engines, maintenance replacement for old engines, and daily maintenance of construction machinery and heavy-duty trucks. With "original adaptation, reliable quality and excellent cost performance" as its core competitiveness, it is priced in the mid-market, meeting the cost control needs of professional maintenance institutions, fleet operators and equipment owners, and filling the gap of high-quality and high-adaptability replacement parts for Weichai WD615 engines.

III. Model Adaptation

The three models of Yuwei Piston are accurately adapted to Weichai WD615 series engines. The specific correspondence is as follows to avoid engine failures caused by improper adaptation:

Model 612600030011

Specifically adapted to Weichai WD615E2-3A engine, widely used in heavy-duty trucks, engineering loaders and other equipment equipped with this model.

Model 612600030010

Specifically adapted to Weichai WD615E2 engine, suitable for all configurations of this model, covering multiple application scenarios.

Model 612600030015

Universally adapted to all models of Weichai WD615 series (including WD615E2, WD615E2-3A, etc.), with strong compatibility, usable as a general replacement part.

Note: Please accurately check the engine model and piston model when purchasing. Use the same model of Yuwei Piston for the same engine, and it is recommended to keep the product code on the top of the old piston for accurate matching.

IV. Product Advantages

Original-level Adaptation, High Fit

Manufactured in strict accordance with the original drawings of Weichai WD615 series engines, perfectly matching cylinder blocks, piston rings and piston pins, no additional modification required.

High-quality Raw Materials, Outstanding Durability

Adopting MAHILIl24 cast aluminum alloy with phosphorus modification treatment, the first ring groove is inlaid with austenitic heat-resistant cast iron insert, and the service life is 2-3 times that of ordinary pistons.

Optimized Structural Design, Stable Performance

Equipped with internal cooling oil channel to reduce temperature; piston skirt is sprayed with graphite layer for wear reduction; semi-drag skirt design reduces quality and inertial force.

Excellent Sealing Performance, Good Fuel Economy

Precise processing of piston ring grooves, matching three piston rings, effectively preventing fuel leakage and oil, improving combustion efficiency and reducing fuel consumption.

Strict Quality Control, Reliable Guarantee

Underwent multiple strict processes such as smelting, casting, precision machining and flaw detection, all products passed comprehensive inspections, meeting Euro II emission standards.

V. Installation and Maintenance

(I) Installation Notes

Pre-installation Preparation: Check the piston surface for defects, clean the ring groove, verify model matching, and ensure the oil injector and oil circuit are unobstructed.

Piston Ring Installation: Use special tools, distinguish the two compression rings, install with the "TOP" mark facing up, and ensure the oil ring spring is properly installed.

Piston Installation: Install the piston pin and retainer, apply appropriate engine oil to the piston surface before installation, install the connecting rod correctly, and tighten the connecting rod bolts according to the specified torque (170N.m～250N.m).

Post-installation Inspection: Rotate the crankshaft to check for smooth movement, ensure piston ring gaps are staggered by 120°, start the engine and observe for abnormalities such as oil leakage and air leakage.

(II) Daily Maintenance Points

Regular Inspection: Regularly check oil level and quality, replace oil and oil filter on schedule, and check exhaust color for abnormalities.

Working Condition Control: Avoid long-term high-load and high-speed operation, idle for preheating after cold start, and prevent oil and water shortage.

Timely Fault Handling: Stop and inspect immediately if piston knock or abnormal noise occurs, and replace with the same model of Yuwei Piston if necessary.

Storage Maintenance: Store unused pistons in a dry, ventilated and clean environment, avoid extrusion and collision, and apply a small amount of anti-rust oil.

Following the above installation and maintenance requirements can effectively extend the service life of Yuwei Piston and ensure the long-term, stable and efficient operation of Weichai WD615 engine.

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