Stock Replacement Oil Pump
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Melling Stock Replacement Oil Pump

Part No. M-81A 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
Gasket Or Seal Included:Yes
High Pressure:No
High Volume:No
Material:Cast Iron Body
Oil Pump Type:Stock Replacement
Pickup Screen Included:No
Pressure:Standard Pressure
Volume:Standard

REVIEW SNAPSHOT®

by PowerReviews
MellingStock Replacement Oil Pump
 
4.2

(based on 9 reviews)

Ratings Distribution

  • 5 Stars

     

    (5)

  • 4 Stars

     

    (3)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (1)

100%

of respondents would recommend this to a friend.

Pros

  • Easy to install (5)
  • Durable (4)
  • Improves engine efficiency (3)

Cons

No Cons

Best Uses

  • Everyday driving (4)
  • Replacement (3)
    • Car & Truck:
    • Auto enthusiast (4), Truck enthusiast (3)

Reviewed by 9 customers

Displaying reviews 1-9

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(3 of 5 customers found this review helpful)

 
5.0

Great oil pump and well built

By 

from Flint, MI

About Me Mechanic, Truck Enthusiast

See all my reviews

Ask me a question

Verified Buyer
Helpful Reviewer

Pros

  • Durable

Cons

    Best Uses

      Comments about Melling Stock Replacement Oil Pump:

      Well built oil pump

      Comment on this reviewHelp Icon

      (4 of 9 customers found this review helpful)

       
      1.0

      this pump and 242s screen don't fit jeep

      By 

      from pennsylvania

      About Me Auto Enthusiast, Casual Driver

      See all my reviews

      Ask me a question

      3 or more reviews submitted

      Pros

        Cons

        • Difficult To Install

        Best Uses

        • Unusable

        Comments about Melling Stock Replacement Oil Pump:

        This oil pump up and the 242s screen are recommended for my jeep. Cherokee. These parts don't fit. Advance Auto has yet to address this issue. How long will it take to resolve this issue.

        Comment on this reviewHelp Icon

        (6 of 9 customers found this review helpful)

         
        4.0

        I would buy this product again.

        By 

        from Ocala fl

        About Me Auto Enthusiast

        Verified Buyer
        Helpful Reviewer

        Pros

        • Easy To Install

        Cons

          Best Uses

          • Replacement part

          Comments about Melling Stock Replacement Oil Pump:

          It fit great. Make sure to prime pump. Great product.

          Comment on this reviewHelp Icon

          (4 of 8 customers found this review helpful)

           
          5.0

          Excellent

          By 

          from Baltimore, MD

          Verified Buyer
          Helpful Reviewer

          Pros

          • Easy To Install
          • Improves Engine Efficiency

          Cons

            Best Uses

              Comments about Melling Stock Replacement Oil Pump:

              This Oil pump added the pressure needed.

              • Car & Truck:
              • Truck Enthusiast

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              (3 of 7 customers found this review helpful)

               
              5.0

              Excellent Oil Pump

              By 

              from Lancaster, PA

              See all my reviews

              3 or more reviews submitted

              Pros

              • Durable
              • Easy To Install

              Cons

                Best Uses

                • Everyday Driving
                • Performance Driving
                • Racing
                • Replacement
                • Restoration

                Comments about Melling Stock Replacement Oil Pump:

                Always use a reg oil pump and not the high volume ones.

                • Car & Truck:
                • Auto Enthusiast, Casual Driver, Mechanic, Truck Enthusiast

                Comment on this reviewHelp Icon

                (5 of 8 customers found this review helpful)

                 
                4.0

                Follow Instructions

                By 

                from Adams, Massachusetts

                Pros

                • Improves Engine Efficiency

                Cons

                  Best Uses

                  • Everyday Driving

                  Comments about Melling Stock Replacement Oil Pump:

                  Make sure to prime the pump after you install it or it won't work, other than that the install wasn't that bad

                  • Car & Truck:
                  • Auto Enthusiast, Casual Driver

                  Comment on this reviewHelp Icon

                  (3 of 6 customers found this review helpful)

                   
                  4.0

                  Appears good quality

                  By 

                  from NC

                  See all my reviews

                  Verified Buyer
                  3 or more reviews submitted

                  Comments about Melling Stock Replacement Oil Pump:

                  True fit for my Jeep Grand Cherokee, seems heavier than the original pump. Torque requirements more in instructions for fitting this than stated in car maintenance manual, but because of the weight difference, i chose to torque it to the new pump specs.

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                  (3 of 8 customers found this review helpful)

                   
                  5.0

                  Better than OE

                  By 

                  from Charleston, SC

                  Verified Buyer
                  Helpful Reviewer

                  Pros

                  • Durable
                  • Easy To Install

                  Cons

                    Best Uses

                    • Everyday Driving
                    • Replacement

                    Comments about Melling Stock Replacement Oil Pump:

                    This oil pump fits perfectly as an OE replacement. It is designed to be OE, but it is far superior. It is heavier and feel more solid than the original... I replaced my pump and oil pressure is right back up to 60 lbs cold @ 40 40 lbs at temp..I have 100K on my cherokee and the pressure is better now than when new...

                    • Car & Truck:
                    • Auto Enthusiast

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                    (8 of 12 customers found this review helpful)

                     
                    5.0

                    Operation

                    By 

                    from Bolingbrook, Il

                    Verified Buyer
                    Helpful Reviewer

                    Pros

                    • Durable
                    • Easy To Install
                    • Improves Engine Efficiency

                    Cons

                      Best Uses

                      • Everyday Driving
                      • Replacement

                      Comments about Melling Stock Replacement Oil Pump:

                      I had to replace my oil pump on my Jeep. It was easy to bolt up and easily fixed my problem. Just lining up the gear drive with the engine block gears was a pain and took a while. If you really need this replaced, take it to the shop unless you know your way around on cars.

                      • Car & Truck:
                      • Auto Enthusiast, Mechanic, Truck Enthusiast

                      Comment on this reviewHelp Icon

                      Displaying reviews 1-9

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                      Do you have questions about this product?

                       

                      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.

                      7 Questions | 8 Answers
                      Displaying questions 1-7
                      • Q:

                        Is there a special tool required to seat the tube of the new Melling p/u screen I purchased into my new Melling oil pump?
                        Asked on 4/17/2013 by John from Lexington, KY

                        1 answer

                        • CUSTOMER CARE

                          A:

                          Yes, with reference to your inquiry on the Melling Oil Pump -part# M-81A, you would need oil pump pickup tube driver tool to install and remove the oil screen without risking damage. For any further assistance, please feel free to call us at: 1-877-238-2623 or visit the nearest Advance Auto Parts store and one of our Parts Pros will gladly assist you with any questions or concerns you may have.

                          Answered on 4/17/2013 by Vincent from AAP
                      • Q:

                        does the cotter pin stay in
                        Asked on 3/25/2013 by j from roch ny

                        2 answers

                        • CUSTOMER CARE

                          A:

                          Yes, with reference to your inquiry on the Melling Oil Pump -part# M-81A, the cotter pin stays in. For any further assistance, please feel free to call us at: 1-877-238-2623 or visit the nearest Advance Auto Parts store and one of our Parts Pros will gladly assist you with any questions or concerns you may have.

                          Answered on 3/26/2013 by Vincent from AAP
                        • CUSTOMER CARE

                          A:

                          Yes, with reference to your inquiry on the Melling Oil Pump -part# M-81A, the cotter pin stays in. For any further assistance, please feel free to call us at: 1-877-238-2623 or visit the nearest Advance Auto Parts store and one of our Parts Pros will gladly assist you with any questions or concerns you may have.

                          Answered on 3/26/2013 by Vincent from AAP
                      • Q:

                        got bad oil pressure.. do i need this?
                        Asked on 2/4/2012 by bt12 from tampa, fl

                        1 answer

                        • CUSTOMER CARE

                          A:

                          Yes, it could be because of malfunctioning gauge or bad oil pump. However, I would suggest taking your vehicle to a certified mechanic for a proper diagnosis before buying and having parts installed that may not (solve/be) the problem.

                          Answered on 2/4/2012 by Dennis from AAP
                      • Q:

                        I did not understand an answer from a previous question about a gasket leaking at the oil pump. Are you saying that on a 1994 6 cyl Grand Cherokee Laredo that you do not have to remove the oil pan to replace the oil pump and clean the screen ? Is the oil pump external now ? Thanks for answering in advance.
                        Asked on 11/5/2011 by CIRUS from Cincinnati, Ohio

                        1 answer

                        • CUSTOMER CARE

                          A:

                          Losing lubrication in an engine will destroy it.
                          Drive your Jeep Grand Cherokee up onto ramps or lifts. You could also use a jack, but brace the front wheels so they don't roll. Set the emergency break so the car doesn't roll. Remove the oil pan on the bottom of your engine. Take out the timing chain cover, the timing chains and the tensioners. Remove the oil pump. Clean the surrounding cables with water and rags. Replace the old pump. Insert the new model in the same position as the old one, torquing the pump bolts to 21 ft-lb. Reinsert the tensioners, the timing chains and the timing chain cover. Reattach the oil pan. Turn the Jeep Grand Cherokee on and check for leaks. Drive your car off the lifts if you don't see any.

                          Answered on 11/7/2011 by Vincent from AAP
                      • Q:

                        When you replace the oil pump do you need to replace the pick up screen also?
                        Asked on 2/24/2011 by Bill from Lanoka Harbor NJ

                        1 answer

                        • A:

                          Iam not a certified mechanic, but back in about 1966, I had a 1961 Belair 283cu., and I replaced the oil pump, and did not replace the p/u screen. However, I did make certan that all the sludge was removed, by thoroughly cleaning the screen with solvent and brush. But I can't remember how I removed the tube and screen, and re-incerted it on the new pump. SHE ran great!!!!!

                          Answered on 5/10/2011 by just an old Vietnam Veteran from Western NY
                      • Q:

                        i got good oil presure jus a leak from around the housing where my filter is should i replace the whole pump or jus a gasket?
                        Asked on 11/8/2010 by rob420 from cedar grove,west virgina

                        1 answer

                        • CUSTOMER CARE

                          A:

                          If you can, I would just replace the gasket.

                          Answered on 11/8/2010 by Mike the Auto Parts Master from AAP
                      • Q:

                        mine leaks from around it...where my filter goes do i need a new pump or jus a gasket....got good oil pressue
                        Asked on 11/8/2010 by rob420 from cedar grove,west virgina

                        1 answer

                        • CUSTOMER CARE

                          A:

                          That is a hard question to answer without being there with your vehicle because from where I am right now, it could be either. I honestly recommend taking your vehicle to a reputable shop that you trust and having them take a look at it.

                          Answered on 11/8/2010 by Mike the Auto Parts Master from AAP
                      Displaying questions 1-7

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