Onlarca yıldır, Weichai Power has been a cornerstone of China’s engine manufacturing, producing diesel engines renowned for reliability, fuel efficiency, and adaptability across trucks, inşaat makineleri, deniz gemileri, and power generation. Let’s break down their key engine series and the core components that drive their performance.
Flagship Weichai Engine Series
1. WP7H Series (6.8L):
Designed for excavators, silindir, and graders, this 6-cylinder workhorse delivers 129–221 kW (175–300 hp) with exceptional low-end torque (800–1200 N·m). Its 4-valve design and DOC+DPF/SCR emissions tech ensure compliance with China Non-Road Stage IV. Key strengths include:
Ultra-Low Fuel Consumption: As low as 189 g/kW·h via optimized combustion.
Enhanced NVH: Rear-mounted gear train reduces noise by 2–3 dB(A).
High Torque Density: 162.8 N·m/L displacement.
2. WP12 Series (11.6L):
A marine and industrial titan, this inline-6 engine generates up to 405 KW (550 hp). Its hardened block, krank mili, and connecting rods achieve 20,000-hour overhaul intervals. Features include:
Torque Reserve: 25–35% for quick vessel acceleration.
High-Pressure Common Rail (HPCR): Precise fuel control for 191 g/kW·h efficiency.
3. WP4.1N Series (4.1L):
Targeting buses and school vehicles, this compact 4-cylinder engine offers 125–140 kW. It meets China VI emissions and boasts:
Fuel Economy: 4 g/kW·h lower than competitors.
80,000-km B10 Life: Validated via rigorous testing.
Low Noise: Dual-balancer shaft and insulated covers.
Critical Engine Components
Weichai’s durability hinges on precision-engineered assemblies:
Piston montajı:
Aluminum alloy pistons handle extreme combustion pressure. Chrome-plated rings in WP7H/WP12 minimize blow-by and oil consumption.
Silindir Bloğu & Astar:
High-strength cast iron blocks (Örn., WP12) endure 200+ bar peak pressures. Wet liners enhance cooling in marine models.
Valve Train:
4-valve heads (WP7H/WP4.1N) optimize airflow. Heat-resistant steel valves withstand 800°C exhaust gases.
Connecting Rod & Krank mili:
Forged steel rods and micro-alloyed crankshafts transfer force reliably. WP12’s crankshaft supports 12,000-hour marine duty.
Why EPID Parts Supports Weichai Operators
As China’s leading diesel engine parts supplier, EPID Parts delivers genuine and OEM-equivalent components for Weichai, Yuchai, Sinotruk, Baudouin, and Cummins engines. Our overhaul kits restore peak performance at 20–40% lower costs, içermek:
Pistonlar, halka, and cylinder liners
MLS head gaskets and valve sets
Main/rod bearings and seals
Kalite güvencesi: All parts undergo ISO 9001 validation, matching OEM durability for critical applications.
EPID Parts—Your Partner for Cost-Effective Weichai Engine Longevity. Explore our OEM-grade overhaul solutions today.
