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Water Pumps

Engine water pumps for gasoline and diesel pickups, SUVs, vans and trucks, with metal or composite impellers, specified by seal type, pulley, fan flange and housing.

Products

33 products

About water pumps

The water pump circulates coolant through the engine, radiator and heater core. Pump failure causes rapid overheating, and a leaking seal can lose coolant slowly until damage occurs. Pumps on engines working in heat and dust carry heavy belt and fan loads, which accelerates bearing and seal wear.

Drive types

  • Accessory-belt-driven pumps – driven by the serpentine or V-belt. On many longitudinal-engine pickups and trucks, the viscous fan clutch bolts to the pump hub, adding load to the pump bearing.
  • Timing-belt-driven pumps – driven by the timing belt on some engines; usually replaced at the same time as the timing belt.
  • Gear-driven pumps – found on some diesel and truck engines.
  • Electric water pumps – used on some newer engines and hybrid systems.

Construction details

  • Impeller: cast iron, stamped steel, aluminum or composite. Composite impellers are light and resist corrosion but can crack or slip on the shaft if poorly made.
  • Mechanical seal: carbon-ceramic or silicon-carbide faces. Seal quality determines leak-free life, and coolant contamination destroys seals quickly.
  • Bearing: double-row ball bearing sized for belt and fan loads.
  • Mounting: gasket, O-ring or liquid sealant; pump only or pump with housing.

Applications

Diesel pickups such as the Toyota Hilux and trucks such as the Hino 500 use pumps designed for their engine family and fan arrangement. Pumps are often ordered alongside timing belt kits, thermostats and hoses.

Buying & specification guide

  • OEM number and engine code, since pumps vary between engine updates.
  • Drive and flange: pulley type, fan clutch flange and bolt pattern, rotation direction.
  • Housing: confirm whether the pump includes a housing, backing plate or thermostat seat.
  • Seals: gasket or O-ring included; any required sealant noted.
  • Impeller material and blade design; ask for evidence of impeller retention on composite designs.
  • Quality checks: shaft play, smooth bearing rotation, seal face finish and casting porosity on samples.
  • Packaging: individual boxes with flange and shaft protection. Pumps are dense, so check carton weights.
  • Kits: a pump with thermostat and gasket kit simplifies workshop orders for high-volume engines.
  • Coolant advice: include guidance that the system should be flushed and refilled with the correct coolant, since contamination is a leading cause of repeat pump failure.
  • Stock depth: pumps for the dominant diesel pickup and light-truck engines move steadily; gasoline passenger references can be covered at lower depth.

Export supply

Water Pumps can be quoted on FOB, CFR, CIF, FCA or EXW terms and combined with other product groups in a single consolidated container. Send part numbers, quantities and destination port for a validated quotation.

Export processMixed container ordersShipping & logistics

Frequently asked questions

Why do new water pumps leak soon after installation?

Common reasons include dry-running the pump before filling, contaminated or incorrect coolant, reused gaskets, overtightened belts and misaligned pulleys. Seal quality also plays a role.

Should the water pump be replaced with the timing belt?

On engines where the timing belt drives the pump, replacing both together is common practice to avoid repeat labor and belt contamination from a later pump leak.

Is a composite impeller a quality concern?

Not by itself. Many OE pumps use composite impellers. Problems arise with poor materials or weak shaft retention. Buy from suppliers who can document impeller design and testing.