great pump well built and more pressure than factory GM. BUT before you purchase check the CHEAP "O" ring seal and get that straight on instead of at an angle like the original left the factory. A new high quality "O" ring like the supplied that came with this pump. GM should of had a recall and fix for free.
Verified purchase: Yes | Condition: New
This oil pump is awesome way better than the stock pump it gave me a oil pressure at 40psi and it gets rid of the valves from knocking. It's about a 7 hour job taking your time and the hardest part is the sump YouTube has some good ideas I used fishing line to tie it to the screw so it doesn't fall in the oil pan. I highly recommend this pump here is a couple of pics the new pump and the old pump still on the engine.
Verified purchase: Yes | Condition: New
Thoroughly satisfied with the high volume oil pump. Quality part that worked great. Totally satisfied. Thank you.
Verified purchase: Yes | Condition: New
Had to trim the pick up tube to get it to sit flush. Different color o-rings didn't solve the problem either. It was sort of a last resort to trim it but it worked and was getting good oil pressure after doing so.
Verified purchase: Yes | Condition: New
Worked great.
Verified purchase: Yes | Condition: New
Great part is real Melling pump. Happy to recieve a quality product. Thank you
Verified purchase: No
Had slight knock and loss of oil pressure immediate change and resolution of the problem. Definitely looking into more Melli g products.
Verified purchase: Yes | Condition: New
Looks factory and has a good name behind it. Very nice quility
Verified purchase: Yes | Condition: New
All installed smoothly and fits right ant tight only thing should have came with the pan gasket seeing how it to has to be pulled on this repair
Verified purchase: Yes | Condition: New
With 240k miles on my 5.3, my stick oil pump was a little tired. Oil psi is back to where it needs to be. Also this pump solved my lifter tapping noise and my dry start knock.
Verified purchase: Yes | Condition: New
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