HOWO Power Steering Pump WG9725471016 Gear Drive (17-Tooth, A7 T5G T7H)

The WG9725471016 is a hydraulic vane-type power steering pump with an integrated helical drive gear for SINOTRUK HOWO A7 / T5G / T7H and Sitrak C5H / C7H trucks. Mounted on the engine side and driven directly by the timing gear train — no belt or pulley.

– OEM No.: WG9725471016 (marked on the pump nameplate; serial C2607241536HX)
– Type: hydraulic vane pump, gear driven (17-tooth helical gear, Φ58 mm)
– Application: HOWO A7 / T5G / T7H, HOWO TX / NX, Sitrak C5H / C7H, Haohan N5G / N7G; WEICHAI WP10 / WP12 / WP13 platforms
– Displacement: 17.0 ml/r; working pressure 100–140 bar, max 180 bar
– Flow: 16–22 L/min at 1500–2000 rpm; rotation clockwise
– Ports: inlet M26 × 1.5, outlet M18 × 1.5
– Housing: die-cast aluminium; rotor and vanes in hardened alloy steel; NBR seals

Important: this is the gear-driven version. The belt-driven WG9619470080 pump used on HOWO 371 / STEYR / WD615 engines is a different unit and not a direct swap — check your old pump for a pulley before ordering.

Common failure signs: heavy steering at idle that frees up with revs, whining or growling from the pump, foaming fluid in the reservoir, and weeping at the shaft seal. Flush the system and replace the filter after fitting a new pump — contaminated fluid is the quickest way to kill the replacement.

Brand-new unit, 100% pressure and leak tested before packing, 12-month warranty, in stock for worldwide shipping. Request a quote for the best export price.