Tool Guy Republic Fluid Transfer Pump - Powered by an Air Ratchet or Cordless Drill

This pump works well, and from what I understand is priced far below what it's offered for on the various tool trucks. The quick-disconnect hoses are really nice. Make sure your drill battery is well charged and perhaps have a spare ready - the drill will need to run continuously for a few minutes to fill a differential or transfer case, but the process is clean and easy. One technique note: When filling vehicle gear assemblies (where the "oil-full" status is indicated by a steady stream of leaking oil) be aware that the pump delivers the oil pretty aerated, which I think temporarily expands the volume. As such, the stream of leaking oil as an indicator could leave the area underfilled once the bubbles have cleared out. I settled on filling oil till it leaked, hand tightening the plug (while still leaking), waiting a minute or 2, and reopening the plug - usually found at this point that the leaking would not resume. I took this to mean there was still some oil capacity to add to get to full. Did this process twice to be sure I was truly at the full mark. Little bit of a pain, but the accessibility of most front diff fill plugs on any truck with independent front suspension is so tight that this is by far the least-worst option.

I cannot recommend this tool enough for those looking for quick fluid transfer like transmission fluid or gear oil for differential service. This makes short work of it. Just make sure you use a normal hammer drill and not a impact gun. Set the drill to hammer and you control the speed nice and smooth. As someone who has issues with my shoulder tendons, this thing is a life saver. I can't use those pump tools too long without my shoulders locking up. Worth every dollar. Just make sure you get it for $100 and not the overpriced weird listings that are more. It's normally $100.

One of the best and easiest to use

Damn good little pump, best drill pump I've ever had

This pump is a waste of money. I got 2 uses out of it pumping transmission fluid before it gave out. It wont pump at all anymore and when it did work, it was extremely slow.

Much better than the vein pumps on the market! Gear pump design and comes with a full break down of all the parts and part numbers in the manual.

works great .

I work as a tech and a dealer and I service diffs and transmissions several times a week. I always use a hand pump extractor to fill diffs and other boxes, gets old and takes forever. On the Mac truck they had this identical drill powered pump for 330, figured I’d take my chances on this and all I can say is wow. Not only makes it effortless to fill diffs and other things but it’s quick. 2qts of atf in the tcase in under 45 seconds, 3.2qts of 75w85 in under 2 minutes. Dewalt drill with a 5ah battery and it pumps it out quick. Would recommend to anyone who regularly services gear boxes and other fluid filled things on a vehicle

Used it for transmission fluid so far, moves the fluid good, way easier than pumping

This is a good tool

I like the unit overall so far just used it once my beef is only with how slow it pumps the oil I was using it to change the rear differential oil 75W90 synthetic and it took almost 4 batteries to pump 3.5 L mind you it was cold around 5C but still took a long time it would be nice if they had adapters for the standard 1L oil bottle otherwise the stiff tube wants to come out on it's own from the bottle . Otherwise it works

Similar to other poor reviews, this tool just does not work. The suction is nowhere near the claimed 3L/min ... it couldn't even suck a half inch of water from the bottom of a soda bottle. Take a hard pass and find something else, otherwise you will be frustrated trying to get your work done using this tool.

Very disappointed!!!!!! Could not pump the second litre of oil. It began to slow down and aeriated the oil. I have to return it.