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Aisin WPF-002 Engine Water Pump

4.3 out of 5 stars 39 customer reviews
| 6 answered questions

Price: $43.78 & FREE Shipping on orders over $49. Details
Only 12 left in stock (more on the way).
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  • Original Japanese equipment manufacturer of water pumps in the world
  • Engine specific water pressure is achieved without excessive load to engine
  • Aluminum die-cast technology allows for size and weight reduction
  • Improved strength in body design and carbon ceramic mechanical seals assures leak prevention
  • Stronger body design and resistance to corrosion
24 new from $41.34 9 used from $24.77
$43.78 & FREE Shipping on orders over $49. Details Only 12 left in stock (more on the way). Ships from and sold by Amazon.com.

Frequently Bought Together

  • Aisin WPF-002 Engine Water Pump
  • +
  • Stant 48457 XACTStat 172 Degrees Fahrenheit Thermostat
Total price: $55.27
Buy the selected items together

Product Information

Technical Details

Brand Aisin
Model WPF-002
Item Weight 3.5 pounds
Product Dimensions 8.1 x 5.8 x 6.1 inches
Item model number WPF-002
Manufacturer Part Number WPF-002

Additional Information

ASIN B008EEYXIO
Customer Reviews
4.3 out of 5 stars 39 customer reviews

4.3 out of 5 stars
Best Sellers Rank #30,617 in Automotive (See top 100)
#37 in Automotive > Replacement Parts > Engine Cooling & Climate Control > Water Pumps
Shipping Weight 3.6 pounds (View shipping rates and policies)
Date First Available June 19, 2012

Warranty & Support

Warranty, Parts:PartsWarranty, Labor:Aisin offers a 12-month or 12,000 mile limited warranty.
Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.

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Product Description

Aisin takes pride in being the number one water pump supplier to Japanese automobile manufactures. Utilizing the experience and knowledge gained throughout the years of co-operation directly with automotive manufacturers, Aisin is able to employ a technological advantage in manufacturing and supplying of the best in quality and the most durable of products. With this momentum, Aisin is increasing the development, manufacturing and supply for European and American automobile manufacturers. Aisin water pumps provide optimal cooling without creating excess load to the engine, and the advanced aluminum die-cast technology allows for size and weight reductions without sacrificing cooling performance. The highest quality materials are used, creating stronger body design and resistance to corrosion. Advanced technological design produces smooth coolant flow channels, efficient rotors, ball bearings, and carbon ceramic mechanical sealing for optimum cooling performance and longevity. Aisin is a leader in the development and production of high-quality original equipment matched components and systems for the automotive industry.

Customer Questions & Answers

Customer Reviews

Top Customer Reviews

Verified Purchase
During a timing belt change I decided to swap the water pump as most people do to avoid having to do it all over again down the road. I purchased this pump as it came recommended from a friend and also comes with a gasket which the Gates pump did not. This pump has a slightly different impeller design than the OEM model but appears to work just as well. The gasket is a real gem in this kit as it is quite beefy and I did not worry about it leaking one bit after the install. Do yourself a favor and put some RTV on the gasket to hold it to the pump during install. This makes it way easier to get set correctly. The pump also comes with the corner vibration rubber piece AND a thermostat seal. I purchased a new thermostat that came with one so I did not need it but I found this to be a very nice addition and applaud Aisin for giving you everything you need to swap this pump.

Overall I am very happy with this pump. I have been running it for about a week without signs of issue. This pump is competitively priced with the Gates pump and having purchased and installed both, I would recommend this one over the Gates as it comes with a proper gasket and feels like it won't let me down in 10k miles.
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Verified Purchase
There are several manufacturers out there and I went for the Aisin since they are a the largest Japanese water pump manufacturer and (I think) the OEM for my Subaru. The kit comes with a thermostat gasket (and I would recommend changing the thermostat when you change the water pump), a nice metal gasket for the water pump and a little segment of housing gasket. Mine fit very well and looks like the OEM part. I'd buy this kit again.
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Verified Purchase
Exact oem subaru waterpump for a 02 impreza ts wagon ts wagon 2.5L N/A. The impeller is a stamped type and NOT a cast type. It also comes with a thermstat gasket and the metal gasket which is 1000x better than the paper type gasket. No sealant or gasket maker is required with the metal gasket. Just make sure that the waterpump mating surface is clean of debris or old gasket material.
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Verified Purchase
I bought a used Legacy that had a small coolant leak. Come to find out, the water pump gasket was the culprit. Which is why I just bought the water pump kit. The previous owner had done all the timing belt/head gasket work, but I didn't want to assume that the old parts were good, so I replaced the water pump as well as the gasket. This comes with a metal crush style gasket. I liked it more than the particle gasket that was on the pump that was in the car already. As the particle gasket was the leak. Everything fit like it should! Runs without leaks! Hopefully it will stay that way! Only had it on for a week, but no issues with coolant leaking.
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Verified Purchase
Definite OEM quality, matched up to OEM pump, impeller looks exactly like factory pump as well as the bearings and housing. They included metal gasket was just like OEM in addition to Subaru thermostat seal.
Did about 7k miles on it so far and no problems or funny noises.
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Verified Purchase
So the Subaru dealership replaced my water pump a few years back, since then I had noticed a very insignificant leak coming from that area. I decided it was time to change the pump but this time I would buy my own and install it. When I pulled the genuine Subaru water pump, I could see a pinhole leak on the casing and when compared to the Aisin, the latter is superior in quality. The new pump comes with a metal gasket and an additional rubber side trim. It also included a rubber seal for the thermostat, which I replaced. All works like a charm!
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Verified Purchase
All went together fine when replacing my timing belt, but one bolt on the water pump is a pain to torque correctly because the casting gets in the way of the socket. Minus one star for that. Other than that, it seems well made. Gasket is metal, link the original I took off.
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Verified Purchase
Perfect fit for Subaru 2.5 engine. PLEASE NOTE, do not over tighten the bolts when installing thermostat. They only need ~12lb torque. Overtighting the bolts will cause the gasket to leak. If you are changing the water pump, you should change the thermostat as well.
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