Stock Replacement Oil Pump
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Melling Stock Replacement Oil Pump

Part No. M-55 Warranty Details  

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Melling oil pumps provide dependable performance every time in every application. Every pump is engineered, manufactured and assembled to the highest material and production standards. Manufacturing processes include state of the art CNC machines and the latest phosphate coating processes. Melling oil pumps are manufactured from high quality materials in either cast iron or cast aluminum as specified by the OEM engine manufacturer. Internal pump parts are produced from sintered metal or steel. Gears are machined to close tolerances to ensure proper engine pressure and correct, efficient pump operation. End plates are precision ground for maximum ware resistance. Depending on application and design, Melling pumps may use gear, impeller or the latest gerotor technology. When completed every Melling oil pump is individually tested for pressure and flow under conditions designed to duplicate actual engine operating conditions. In addition to OEM pump applications, Melling Select pumps are offered for increased oil flow, increased oil pressure, anti-cavitation capability, lighter pump weight and performance when needed. Depending on your oil pump requirements Melling Select pumps are offered in cast iron, cast aluminum or aluminum billet materials. Each Melling Select pump performance level offers a step up in material selection, engineering advantages and increased durability. All Melling Select pumps designed to provide the highest level of quality and performance with a reasonable level of investment.

Product Features:
  • Engineered to provide consistent, durable performance
  • Precision manufactured from high quality materials
  • Performance meets or exceeds OE specifications
  • 1 year limited warranty
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Belt Driven:No
Gaskets Included:No
High Pressure:No
High Volume:No
Material:Cast Iron
Pickup Screen Included:No
Type:Stock Replacement


by PowerReviews
MellingStock Replacement Oil Pump

(based on 1 review)

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Reviewed by 1 customer

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(11 of 20 customers found this review helpful)


great quality


from chattanoga

About Me Auto Enthusiast

Verified Buyer
Helpful Reviewer


  • Durable


    Best Uses

    • Everyday Driving

    Comments about Melling Stock Replacement Oil Pump:

    only have to install it once have used Melling products for many many years

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    Ask a question, get answers from real customers and in-house experts. For further assistance, please review your support options on our Contact Us page.

    5 Questions | 6 Answers
    Displaying questions 1-5
    • Q:

      will my vehicle start up with a faulty oil pump? 1989 chevy astro 4.3 Liter will not start. eliminated most causes. had very low oil pressure before it died
      Asked on 2/20/2016 by rush1981 from cocoa florida

      1 answer



        Hi Rush1981, glad to help you! Most likely the first symptom will be your engine or oil light indicator on your dashboard coming on to alert you there is a problem. Still this isn't always the case and often times the driver fails to notice the light or ignores it. Typically if the oil light is on it is an indication that the oil pressure is low. This isn't an automatic indication you have a problem with your oil pump, as there could be a leak, or your engine could be burning oil. The problem could be solved by checking the dipstick and adding oil if it is low. If the light persists you can check for these other symptoms: Low oil pressure, Increased engine operating temperature, Noise. Your vehicles hydraulic lifters are an important part of your engine's operation and it is important that they are adequately lubricated. When your engine is working properly these lifters are virtually silent, but when the flow of oil is cut off to the lifters they begin to make noise and wear unevenly. It is extremely expensive to have lifters replaced and extremely important they are properly lubricated. However, I would suggest that you take your vehicle and get it thoroughly checked by a certified mechanic before buying any parts that may/may not solve the problem.

        Answered on 2/22/2016 by Steve from AAP
    • Q:

      my 1994 chevy is making a knocking noise and a local mechanic told me that it could be the oil pump should i replace it just to see if that could be it and if so whats the best kind of oil to use???
      Asked on 12/1/2014 by Curly from Shallotte, NC

      1 answer



        Hi Curly, Sorry, without the presence of your vehicle we would not be able to properly diagnose it, nor provide you with a 100% answer. I would suggest you to refer your vehicle owner's manual for the exact oil specifications.

        Answered on 12/2/2014 by Steve from AAP
    • Q:

      is it hard to change an oil pump on an 91 s10 blazer 4.3
      Asked on 7/28/2014 by big kuntry from va

      1 answer



        Good question! It depends upon the skill level of the person performing the operation. For help with your project, I recommend purchasing a Haynes repair manual specifically for your vehicle. This should be able to assist you further into detail on how to repair or replace specific parts.

        Answered on 7/30/2014 by Vincent from AAP
    • Q:

      is it hard to change oil pump on a 1995 chvey pu 5.7
      Asked on 5/19/2010 by neal

      1 answer



        For step by step instuctions on automotive project such as this, I recommend stopping by your local Advance Advance Auto Parts store and picking up a repair manual if available.

        Answered on 5/19/2010 by Mike from AAP
    • Q:

      I have replaced an oil pan gasket on a 92 Chevy pickup. I also removed the oil pump so that I could remove the flywheel cover for ease of preping the block for the new gasket. Do I need to prime the oil pump after reassembly before restarting the engine?

      Asked on 11/4/2009 by Jeff from Battle Creek, Mi

      2 answers



        Yes you definitely want to prime the oil pump before you start the motor up for the first time once you are finished reassembling.

        Answered on 11/5/2009 by Mike from Advance Auto Parts
      • A:


        Answered on 4/6/2011 by jimbo from beaumont,texas
    Displaying questions 1-5

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