Delivery Time:45- 60 days
Certification:ISO9001 / ISO14001

2.5L DOHC QR25DE AW9427 Car Engine Water Pump , 02 - 11 Nissan Altima Sentra Water Pump

Car Application:  

• 2001/07- X-TRAIL (T30) 2.0

• 2001/07- X-TRAIL (T30) 2.0 4*4

• 2002/03- PRIMERA (WP12) 2.0

• 2002/03- PRIMERA (P12) 2.0

• 2002/07- PRIMERA Hatchback (P12) 2.0

• 2003/01- X-TRAIL (T30) 2.5 01.03

• 2007/06- X-TRAIL (T30) 2.5 4*4

What is a water pump

The water pump is the heart of the cooling system and is responsible for circulating coolant, consisting of housing (aluminum diecast, cast iron, aluminum gravity etc), flange(forged steel, sintered iron etc), impeller (pressed steel, cast iron, synthetic resin etc), water pump bearing and mechanical seal kit.

Water pump circulates coolant between the engine and radiator to keep the engine from overheating. Inside the water pump is a metal or plastic impeller with blades that push the water through the pump. The impeller is mounted on a shaft that is supported by the pump housing with a bearing and seal assembly. The cooling liquid absorbs the heat from the engine block and cylinder head and releases it into the ambient air through the radiator.

The water pump is usually driven by V-belts or poly-rib belts depending on their installation location in the engine. It’s mounted on the engine block from the outside and can be replaced without having to open the engine itself.

Water Pump critical quality

When water pumps fail, the engine overheats, which can result in serious engine damage. Water pumps are typical wear parts, which must sometimes be replaced several times during the service life of the engine.

If the engine has overheated, the entire cooling system (radiator, hoses, water pump and engine) must all be inspected to see if there are any coolant leaks. If coolant is leaking out of the water pump shaft or vent hole, the water pump needs to be replaced. Cooling system sealer cannot stop this kind of leak.

When a water pump starts to leak, the cooling system will lose coolant. If the leak is not discovered, the loss of coolant will eventually cause the engine to overheat. The drive may not realize anything is wrong until the temperature warning light comes on. If this happens to you, shut the engine off immediately. Severe engine damage can result if an overheating engine is driven too far.

Product description

Maojia Industry’s water pumps are recognized in the aftermarket for their durability and superior quality. All our water pumps are constructed with premium alloy materials and a 100% functional test of seals and bearings along with a 100% leakage test for both the casting and assembled water pump. We are committed to supplying the highest quality new and OE performance water pumps.

Maojia Industry’s water pumps advantages

1. Years of OE experience and market acceptance.

2. Experienced engineer team and quality control team.

3. Wide product range for global aftermarket.

4. 100% quality test before packing.

5.  Advanced Test-bed for the Comprehensive Cooling Performance of Combustion Engine and Reliability of Water Pump, automatically collecting data to test such performance parameters as rotation speed, delivery lift, flow rate, power capacity and efficiency.

6. 100% Quality controled by the following advanced test machine. Bearing Vibration Tester, Bearing Clearance Tester, Water Seal Leak Detector, all above testing machines are maintained and calibrated regularly; All operators have attended professional training and operate testers under standard-operating procedures.