Hand pump that pushes ATF up through the side fill plug on sealed transmissions, with 15 adapters and a 7.5 liter reservoir.
When a transmission has no dipstick tube, the only way back in is through a fill plug on the side of the case, and the fluid has to be pushed uphill to get there. This manual refill pump does that job with a lever instead of a compressor. It holds 7.5 liters (2 gallons), delivers about 2.7 fluid ounces per stroke, and ships with 15 aluminum adapters that thread into common fill ports.
On a sealed unit the fill plug is usually set at the correct fluid height, so the transmission is full when fluid starts to run back out of the hole. ZF oil change instructions for its 6HP units describe exactly that: fill through the filler plug until fluid runs out, never start the engine with the transmission dry, and set the final level with the fluid in a narrow temperature window (30 to 35 C, and never above 50 C, on the 6HP). GM uses a similar idea on its no-dipstick units, checking level through a tube in the pan at 35 to 45 C and warning that overfilling can cause venting and foaming. A hand pump with a shut-off valve lets you stop the moment the fluid weeps out, which is what keeps that level right.
For capacity planning, GM lists a 7.0 liter fluid change for the 8L80, which fits inside one 7.5 liter tank load. Fill the tank with the correct fluid before the job so you are not stopping halfway.
Drain the transmission, replace the pan, filter or drain plug as the service requires, then thread the matching adapter into the fill port and couple the hose. Pump until fluid starts to return, close the valve, start the engine and run through the gears, then recheck the level at the specified temperature with the engine running if the procedure calls for it. Our drain and fill walkthrough covers the order of steps, and how to change automatic transmission fluid explains when an exchange is the better choice.
The 15 adapters cover common thread sizes, but no single kit fits every transmission. Check your fill plug size before you start. For less common ports, add a larger set such as the 27-piece fill adapter kit, and for GM 6L80, 8L90 and 10L80 units there is a dedicated GM ATF filler adapter. More fill and extraction tools are in our tools category.
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No. It is a manual lever pump, so it works anywhere without a compressor.
About 2.7 fluid ounces per stroke, roughly 12 strokes per quart. The graduated tank and clear hose let you confirm the total.
They cover common fill plug threads on sealed transmissions, but no kit fits every case. Check your fill port thread before the job and add a larger adapter kit or a model-specific adapter if needed.
On most sealed units the fill plug sits at the correct level, so the case is full when fluid starts to run back out. Close the outlet valve at that point and finish the check at the temperature your service procedure specifies.
The tank, nylon hose and aluminum adapters handle ATF and gear oil. Thick gear oil pumps slower, especially when cold, and the tank should be cleaned between fluid types.
