Orion Motor Tech Transmission Fluid Pump, 3L Transmission Filler Pump with 12pc ATF Aluminum Adapters, Manual Transmission Fluid Transfer Pump with Pressure Gauge, Transmission Dispenser Oil Pump Tool

Used this to prime my new 5.3L with 30wt oil. Worked like a champ. Put in over 4qts of oil with all 16 lifters showing good oil flow. Only pressured the tank up to 30-40 psi. Easy peasy

It worked well, no issues.

Worked well. Lots of tips for fluid dispensing. It does take ALOT of pumps to build pressure especially when almost empty but thats just how it is. Get one for shop air in that case. The gasket for the fill is not captive so you must be careful when closing or else will spill all over or loose pressure. This tool is cheap, the spring loaded quick connect has hair trigger and tip can fly off! but worth the money so good value.

Overall works well. Used once so far to drain and refill Subaru Forester CVT trans fluid. The first unit I ordered would not hold pressure, so I returned it. The second unit I got does work. It works but takes more pumping than I originally expected. When you fill it to the max line (or above with no issue) you pump maybe 20 times to get to the max pressure...it dispenses well but the pressure drops quickly with like 2/3 of the fluid left in the unit, so you have to pump again even more times, then dispense the next 1/3, then pump again and dispense. It's not a simple pump once and dispense instantly. It's still much easier and cleaner than other methods I've used, like an electric pump, manual pump, large auto fluids syringe. It's nice because you don't have to take the fill tube out and leak/dribble fluid all over the place, like other methods. I did this work on the ground with the auto on ramps and jack stands, so had to creep out to pump the unit each time...would be much easier if using on a car on a lift where you have full access to pump the unit without getting out from under the car. I'm a strong guy and you cannot pump it while under the vehicle as you can't get enough leverage...if under a high vehicle maybe. As a pro DIY'er and auto expert I do recommend it. I also didn't want to spend more money than this one and I'm happy with the functionality.

Great product. It is easy to fill and so easy to use. No more mess.

I just got to use it and it works great. Makes filling the transmission so much easier. Wish I would’ve had it years earlier.

I had the quart bottle thump pump and this is soooo much better. Pre pump it and use the ball valve to meter the trans fluid, so much easier. Worked flawlessly.

It would be hard to express how angry I am at the poor quality of one of the adapters to fill the transmission. If you look at the main picture, you will see a curved adapter with a little brass fitting in it. This was the one that fit on my son's Tacoma and the curve is what was needed for the tight space. However, when I attached it and started pumping fluid in, it was leaking down the side a lot of fluid. When I removed it to try a different fitting, the brass fitting was missing! That's right, it shot it into the transmission!!! I tried to get a snake light in there to find it without success. I had to drop the transmission pan to see if there was any chance I could locate it...no luck. So my option is to risk that it will not do any damage or have the truck towed to a shop to have the transmission and transfer case dropped and pulled apart. Decided to risk it causing damage and so far nothing has happened, but again, you cannot imagine how angry I am at the poor quality of this unit's accessories. If something happens to this transmission, they WILL be hearing from me.