Howo Mining Truck Gearbox HW19710 vs HW21712
2026-09-08 23:18
Both models are applied, and neither is the exclusive standard fitment. Selection depends on vehicle tonnage, horsepower and configuration version.
1. HW19710 (10‑speed, maximum input torque: 1900 N·m)
‑ Application: Standard‑version Howo general mining dump trucks, Mine King (ZZ5707 series standard edition), 6×4 / 8×4 export‑oriented dump trucks.‑ Gear set: 10 forward gears + 2 reverse gears, equipped with HW50 power take‑off (PTO).‑ Matched with 371‑420 hp engines. It is the most common base configuration for overseas‑exported mining trucks. Shandong Shengchi Truck exports large volumes of new and used Howo mining trucks with this setup.
2. HW21712 (12‑speed, maximum input torque: 2100 N·m)
‑ Application: Reinforced‑version Mine King, high‑horsepower heavy‑duty wide‑body mining trucks of 430 hp and above.‑ Gear set: 12 forward gears, dual‑oil‑pump design, fitted with HW70 large‑flange power take‑off; some units are equipped with hydraulic retarders.‑ Deployed on 90‑ton‑class heavy‑haul mining trucks as an enhanced heavy‑duty optional configuration, engineered for high‑intensity open‑pit mine heavy‑load operating conditions.
Quick‑reference selection guide
Conventional export‑spec Howo mining trucks with 371 hp WD615 engine → Factory‑fitted with HW19710 (highest market delivery volume).
430 hp WP12 high‑horsepower heavy‑duty wide‑body Mine King → HW21712 is adopted (reinforced heavy‑duty variant).
When performing export modifications, Shandong Shengchi may customize either gearbox according to customers’ mine‑site operating conditions and horsepower requirements. For used mining trucks, the gearbox is subject to original‑factory build specifications. Visually identical mining trucks may come with either gearbox variant.
Link to original article： https://en.shengchi-truck.com/sys-nd/229.html
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