Sinotruk Howo Heavy-Duty Engine V-Belts (often V-ribbed/serpentine types) are engineered for high-tension, heat-resistant, and durable performance, typically used to drive the fan, alternator, water pump, and AC compressor. Key specifications involve high-quality rubber, fiber reinforcement, and exact part numbers (e.g., VG1246060088, 6PK1020) for engines like Weichai or WD615/WD618.