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USD 160.17
Part #: AP63503

Alliant Water Pump AP63503

2004.5-2007 Ford 6.0L Powerstroke
Part #: AP63503
★★★★★ ★★★★★ 11 Reviews
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Replace your failed water pump in your 2004.5-2007 Ford 6.0L Powerstroke with the Alliant Water Pump AP63503. Alliant Power works to service out-of-warranty trucks by providing high quality products in the field. Alliant Products feature the highest quality construction and materials so your truck will continue to perform like new. All Alliant Power parts are built and tested to OEM specifications. Includes mounting gasket. 

  • 100mm Impeller 
  • For Late Model Trucks 
  • Includes Mounting Gasket
  • Built & Tested To OEM Specifications

Model Year Information: 
  • 2003 Models: If you have a 2003 you are in the 2003-2004.25 production date.
  • 2004 Models: If you have a 2004 model you must check your VIN code to determine your production date.
  • 2005 Models: If you have a 2005 or newer, you have a 2004.25 and newer production date. 

A sample VIN code is: 1FTRW21P24EB10150. In the middle of the VIN code, you see the digits "4EB". The 4 means that it was a 2004 model year. The "E" denotes which production plant built your truck. In this case, E is for Kentucky. Lastly, the "B" is the start of the sequence number (the last 6 digits of the VIN). Some early 2004 models have a "4EA" code. The "A" denotes the early build and most likely is a 2003-2004.25 production date. For example letter "B", "C", "D" or more all denote later model 2004 builds with 2004.25 and newer production dates. For additional assistance with your build date, you can also contact your local dealer with your VIN number, or if the water pump is already off the truck you can measure the impeller. 

Vehicle Applications

2005 Ford 6.0L Powerstroke
2006 Ford 6.0L Powerstroke
2007 Ford 6.0L Powerstroke


  • MFG. Number AP63503
  • Manufacturer Name Alliant Power
  • Shipping Weight 5.70 lb.
  • Shipping Length 6.25 in.
  • Shipping Width 6.25 in.
  • Shipping Height 6.25 in.
  • Fuel Type Diesel
  • Warranty Yes
  • Warranty Info 13 Month
  • Prop 65 Prop 65 WarningWARNING: Cancer & Reproductive Harm -
  • Cross Reference # 4C3Z8501AC, PW491
  • Internal L13.00R3.00


★★★★★ ★★★★★
4.8/5 Stars out of 11 Reviews
Verified Buyer
2005 Ford F 350 water pump failure
Reasonable prices on replacement parts fast services including delivery.
Verified Buyer
Fresh install
Will give more information or updates once I’ve ran the truck More but as of now so far so good.
Good, but might not be perfect.
Overall, this is a well made piece. My only concern is that I tow a 10,000 lb trailer in steep terrain. I recently had a head gasket go, so I upgraded to the ProMax heads, ARP studs, etc. In short, with all of that came a new radiator and an new Turbo also, so things are in pretty good shape with my engine. The engine previous to the head gasket issue on a 100+ degree day never heated up on even the longest and steepest days pulling in 102 degrees. Now, I'm experiencing a slight creep in temps on the longest pulls when the temps are in the high 90's. This was never an issue previously, so I'm wondering if going back to the original impeller design might provide a small bit more efficiency. This is the only reason I can come up with for the new temperature creep issue on these steep pulls. I can't guarantee this a water pump impeller design issue, but if you are pulling heavy loads on hot days in steep terrain, you may want to consider going with a pump that has the stock impeller design. Other than that exact scenario described above, steep pulls towing a heavy trailer on near 100 degree days, there is absolutely no reason not to save some money and put in this water pump.
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Questions and Answers

Is the impeller metal as it appears in the photo?
View Staff Answer 

Yes, the Alliant Water Pump AP63503 has a metal impeller.

Is there a warranty on this? If so, how long is it?
View Staff Answer 
This water pump features a 13 month warranty
Will this fit a 2007? Does this have an aluminum impeller or plastic?
View Staff Answer 
Yes. The Alliant Water Pump AP63503 fits 2004.5-2007 Ford 6.0L Powerstroke trucks. The impeller is metal.

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