Saginaw Power Steering Pump Upgrade Kit For Ford F-250/F-350 7.3 1999-2003 Models


42 reviews


Total Price: $1,199.00


Product Details

The 1999-2003 Ford F-250/F-350 with the 7.3 motor is a great workhorse. Unfortunately, the power steering system can only handle street and light off road usage. When you use it as a tow vehicle and need to do extended periods of low speed steering (backing a trailer), or modify it to larger tires, the OEM pump falls short and will often fail.

Our Power Steering Pump Upgrade Kit replaces the stock Ford steering pump with our High-Performance Saginaw N-pump that has been modified with a ported housing, chromoly shaft, needle, and thrust bearings. This is the same pump that many of our off-road race teams are using to win the Baja 1000!

This kit also includes:

  • CNC'd pump adaptor bracket that will bolt to the OEM bracket
  • proprietary design 3.5” x 10” reservoir
  • pressure hose
  • return hose
  • all necessary mounting hardware

Our reservoir uses a unique design to keep steering fluid perfectly still. This results in zero cavitation and reduces air in the system – which keeps operating temperatures lower, resulting in longer pump life. Our pressurized reservoir also keeps oil in and dirt out.

We do recommend adding our 6GPM in-line filter when doing the install to even better protect your system. If adding a filter, choose barbed fittings for easy installation. View Filter

If your vehicle has tires 37" or larger, we recommend using hydraulic ram assist. When adding a ram your pump will need higher flow. We offer this pump with a larger liner and billet end cap to handle the extra flow requirements for the ram. +$150

View Installation Instructions

When using this pump kit, you MUST use the radiator hose that routes "through the serpentine belt". This is the more common hose, but some vehicles came equipped with the "around the belt" hose. If you need to change the hose, the Gates part # is: GAP22542.

Hydro Boost Concerns

We have come across a fair number of hydro boost issues in Ford vehicles. Once adding a higher flow pump (especially our pump set for ram assist) we often see back pressure issues that are hydro boost related.

Unfortunately these days it is hard to find a new quality hydro-boost unit. Most of what is available is remanufactured and oftentimes very low quality. Lee's has begun stocking brand new Bosch hydro boost units that we disassembled, apply our high flow porting, then re-assemble and test.

High Flow Hydro Boost for 1999-2004 Ford F250/350/Excursion

High Flow Hydro Boost for 2005-2010 Ford F250/350/Excursion

Fluid Recommendation

It is HIGHLY recommended to use our specialty formulated Lee Power Steering Fluid.

AC Delco or Valvoline non synthetic power steering fluid will work as a second choice but do not have the same Wear and Anti-Foaming additives our fluid has.



12 Month Limited Warranty Against Manufacturer Defects. View our full warranty details.

Return Policy

Items may be returned within 30 days of purchase. Your original order receipt should be included in the return box. Items should be sent using the original packaging. Upon receipt of your return, we will ensure all items are undamaged, and issue your refund.

    Customer Reviews
    4.8 Based on 42 Reviews
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    Filter Reviews:
    Jacob G.
    United States

    7.3L kit

    So far I only have a couple hours on the system. I have heard lots of direct positive feedback directly from guys on Facebook groups about this kit. While it is a good kit, I’m most impressed with the knowledge and customer service with Lee power steering. Makes my power steering troubles a thing of the past, and I can finally rest my concerns with their assistance.

    United States United States

    2002 replacement of original pump after 240,000 miles.

    The install went well. A couple things could be improved. I wasn’t familiar with the 90degree fittings and how difficult it was to slip hose onto them. A little WD40 makes it much easier. I didn’t want to use the 21 year old factory return hose and there wasn’t enough hose supplied with install kit. Also 90 degrees fitting there would clean things up nicely. The Saginaw up grade resulted in better steering with No pulsation.


    Easy to install

    Instructions were clear. I brought my bracket to a machine shop and had them mill it instead of cutting per instructions. Cut the tube that goes to the cooler for better alignment. Recommend flushing the system when done with install. Great job on designing this pump upgrade!

    Adam M.
    United States United States

    Highly RECOMMEND!!! My 7.3L feels like a new truck!!

    I had turning issues at low speeds and stops! New factory steering pumps were put in a few times never fixed the issue!! I bought the lees power steering pump and followed the easy instructions to install it!! It was fairly Easy!! I have NO steering issues at all now!! No whinnying no turning issues even the braking is a million times better!!!! I highly recommend the Lee’s power steering pump!! Worth every penny!!

    United States United States

    Lee Power Steering is amazing

    Great product and great customer service. Love your company and I’m happy to recommend your products and services. Highest quality products, friendly staff and ability to provide technical info so that it is easily understood made me a customer for life.