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OPR Water Pump; Severe Duty Police Package (86-93 5.0L)

Item 525131
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      Product Information

      Features, Description, Reviews, Q&A, Specs & Installation


      • Keep Your Engine Running Cool
      • Severe Duty Police Package
      • 100% Brand New, Not Re-Manufactured
      • OE Fit and Finish
      • Cast Aluminum Finish
      • Fits 1986-1993 5.0L V8 Mustangs


      Keep Your Engine Running Cool. Keep your classic 5.0L powered Mustang from overheating by replacing that old, leaky, or worn out factory water pump with a direct fit Severe Duty Police Package replacement water pump from OPR.

      Better Than OEM Quality. This OPR Severe Duty replacement Mustang water pump is 100% brand new, not re-manufactured like other companies sell and is manufactured to meet or exceed the original factory specifications from better than OEM quality materials for reliable operation. Includes a premium quality mounting gasket for a guaranteed leak-proof seal.

      Application. This OPR Severe Duty Police Package Replacement Water Pump is designed to fit the 1986-1993 LX, GT and SVT Cobra model Mustangs equipped with the iconic 5.0L V8 engine. 


      Fitment: 1986 1987 1988 1989 1990 1991 1992 1993 Details

      MPN# 525131

      CA Residents: WARNING: Cancer and Reproductive Harm -


      Customer Reviews (18)

      Write a Review

      Ratings Summary

      4.7 out of 5 overall rating from 18 customers

      • April 08, 2019

        5 1987 LX - DonG


        Working great no more over heating problems Added SVE aluminum radiator and electric fan also Parts came in two as always

        Helpful (1)
      • February 08, 2019

        5 1990 GT - Gary

        I like it

        Easy to install. Haven't ran it yet but if it works as good as it looks it will work good. The car is being rebuilt, so as soon as the rest of the car is back together we will test it out.

        Helpful (0)
      • September 04, 2018

        5 1992 LX - TimothyG



        Helpful (9)
      • May 14, 2018

        5 1990 LX - JohnF

        Police package water pump

        So far so still isn’t on the road but have had it leaks and seems to be working good! Shipping was fast and pump was as described! Came with gaskets but All i did was change to felpro gaskets.

        Helpful (9)
      • April 23, 2018

        5 1991 GT - MiguelG

        Water pump!!!

        Great finish, great looking, it’s a good option to replace your old water pump and give a better look at your 5.0 under the hood

        Helpful (9)
      • February 14, 2018

        5 1989 LX - KeyL

        Great Water Pump!

        Product is a good casting, and a quality piece, no issues at all.

        Helpful (9)
      • November 24, 2017

        3 1989 GT - JasonW

        Good pump, wrong gasket

        Received the pump with two of the same gaskets instead of the two different ones I needed. Bought a Felpro kit and got it installed. Worked great right up until the heater core broke

        Helpful (10)
      • September 04, 2017

        5 1993 LX - SVO89

        Easy Install

        Great product. Seems well made and was very easy to install. Best part was the fast shipping from American Muscle.

        Helpful (11)
      • June 24, 2017

        5 1979 Other - boosey

        very nice fit easy and works great

        very nice fit easy and works great a must for anyone needing a great pump

        Helpful (9)
      • June 21, 2017

        4 1993 GT - Zachary

        Police water pump

        Works great for the money better than paying couple hundred for a racing one

        Helpful (9)

      Questions & Answers (7 answers)

      5 Top Rated Questions

      What is the difference between the Severe Duty Police pumps and the SR high performance pumps?

      • The severe duty police pump is a heavier duty version of the factory style water pump that originally came on that car, whereas, the SR performance water pump is a high performance pump that has a reversed rotation that can output a higher amount of coolant per minute and to minimize any hot spots in the engine.

      Helpful (2)

      My '92 5.0 temp loves to creep up and drop over and over both while driving and idling. I've flushed my system thoroughly and replaced hoses, had the radiator, water pump, fan clutch and thermostat replaced over the past 3 years. I have a good handful of bolt-on mods. I wonder if the stock water pump (from autozone) isn't cutting it. Should I go for this one or do I need a high flow performance water pump?

      • This Severe Duty Police Package Water Pump by OPR will help bring down coolant temps, however, if your vehicle is over heating quite a bit, we would highly recommend a high flow pump. If the temperature only creeps up occasionally, I would recommend looking into the addition of a new fan on the front side of the radiator and reversing its polarity. It could be wired in via an on/off switch, or even a thermostatic controller to automatically turn on when the coolant temperature starts to creep up.

      Helpful (2)

      What exactly are the differences between the OPR Water Pump - Severe Duty Police Package and the OPR Replacement water pump (Item 525130)?

      • The OPR Replacement Water Pump is a reproduction of the OEM 5.0L water pump found on the H.O. 5.0L Foxbody Mustangs. The OPR Water Pump - Severe Duty Police Package is a reproduction of the water pumps supplied on SSP Mustangs. The SSP (Severe Service Package) Mustangs featured increased cooling ability, thanks to a more efficient water pump design, silicone hoses, and an engine oil cooler to handle the long idle times expected for Police Mustangs.

      Helpful (1)

      Will this pump work on a 331 block?

      Can anyone tell me the difference between the Severe Duty Police Package and the Ford Racing water pumps? My supercharged 1987 Saleen doesn't overheat but it does run hotter than I would like especially on hot summer days in stop and go traffic. Going to replace radiator with a Mishimoto and will change water pump while it is apart.

      • The OPR Water Pump - Severe Duty Police Package is made to the same specs as the OEM police package waterpumps. The Ford Performance water pump will be a standard design, and will not increase flow over OEM.

      Helpful (0)
      Post Your Question
      2 More Questions
      In what country is this water pump made? 1 answer
      i have a 90' gt with a vortech supercharger and a few other slight mods. which pump would be correct for my setup as far as rotation of the pump goes? thanks a bunch! 1 answer

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (1) Water Pump

      Tech Specs

      Will It Fit My Mustang

      • Cobra - 93
      • Cobra R - 93
      • GT - 87, 88, 89, 90, 91, 92, 93
      • LX - 87, 88, 89, 90, 91, 92, 93
      • Other - 86

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