✔ Heavy Duty Engine Rocker Arm Assembly
✔ Designed for WD618 / HOWO Diesel Engine
✔ Stable Valve Opening & Closing Performance
✔ High Strength Alloy Steel Material
✔ Precision Machined Valve Train Component
✔ Excellent Wear Resistance & Long Service Life
✔ OEM Standard Engine Spare Part
✔ Suitable for HOWO 371 / SHACMAN / Heavy Duty Trucks