Yuwei Piston (Suitable for Weichai WP13 Natural Gas Engine) Product Introduction
I. Product Introduction
Yuwei Pistons (Models: 612700020016, 612700020004, WP13NG Special Edition) are core components designed for Weichai WP13 natural gas engines. They match the engines' high combustion temperature and low emission characteristics, enhance power transmission and service life, and can directly replace original pistons for heavy-duty trucks and construction machinery.
II. Product Positioning
Positioned as a high-end dedicated piston for Weichai WP13 natural gas engines, it meets original factory standards with better quality. It features high adaptability, wear resistance, low loss and long service life, suitable for high-reliability scenarios, and solves common pain points of traditional pistons.
III. Model Adaptation
Exclusively for Weichai WP13 natural gas engines, no additional modification needed for direct installation:
Core Adaptable Engine
Weichai WP13NG series natural gas engines (full power range, for heavy-duty trucks and construction machinery);
Core Piston Models
612700020016, 612700020004 (WP13NG dedicated, interchangeable, matching original standards);
Core Advantages
Matches combustion chamber structure, reasonable gap (0.06mm~0.15mm), reduces friction and lubricating oil consumption, ensures smooth power transmission.
IV. Core Product Advantages
Optimized for Weichai WP13 natural gas engines, with core advantages:
Accurate & Easy Installation
Follows original drawings, minimal dimensional error, direct replacement without modification, improves maintenance efficiency.
01
Wear-Resistant Material
High-strength alloy, high-temperature/pressure resistance, service life 30% longer than ordinary pistons, reduces replacement times.
02
Energy-Saving & Environmental
Conical piston top (5°~15°), reduces lubricating oil consumption and exhaust smoke, optimized ring groove for better sealing and lower gas consumption.
03
Stable & Reliable
Optimized elliptical skirt, precise piston pin fit (0.005-0.015mm), suitable for complex working conditions, prevents deformation and fracture.
04
Cost-Effective & Guaranteed
Better quality than original at lower price, complete after-sales service and technical support.
05
V. Installation and Maintenance Guide
Correct installation and maintenance extend service life. Below is the guide for professional operators:
(I) Installation Notes
Pre-installation: Clean components, check for defects, prepare special tools (piston ring pliers, torque wrench, etc.).
Piston Ring Installation: Install in "oil ring first, gas ring later" order, marked side up, openings staggered (≥90°), avoid over-expansion.
Piston Pin Installation: Heat piston, insert pin, install circlip immediately to prevent movement.
Piston to Cylinder: Apply engine oil, compress piston rings, push gently into cylinder, avoid scratching.
Fixing: Install connecting rod cover, tighten bolts alternately (25-40N・m) as per manual.
Post-installation Check: Rotate crankshaft for smooth operation, test run to confirm no leakage or abnormal noise.
(II) Daily Maintenance Points
Regular Inspection: Check every 5000-8000km for wear, cracks and sealing, adjust pin clearance if needed.
Standard Oil Change: Replace oil and filter every 10000km, use high-quality oil to avoid sludge.
Working Condition Control: Avoid long idling/overloading, preheat 3-5 minutes before startup to reduce wear.
Cleaning: Remove cylinder carbon deposits regularly, keep air filter clean to avoid wear.
Fault Handling: Stop and inspect immediately for abnormal power, fuel consumption or smoke, repair/replace components timely.
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