🔧 Reliable Macnaught C7 Premium Gear Oil Hand Pump: 5 Gallon Size & 10-Year Warranty Review

I still don't know what a C7 fitting is, but this thing fits in the standard 5 gallon buckets of oil you find at auto parts stores to get.

Only used once but worked great for the WoolWax primer. I didn't use the tubing that came with it, I used a shorter length of Taigone to transfer to liter bottles.

This appears to be a good quality pump but I've used it a few times and then when I used it one day my 5 gallon bucket of hydraulic oil ran out. I noticed the nozzle was lying on the bottom with a wet patch in the mud and can only assume that the oil leaked out due to gravity and the nozzle was below the level of the pump. I lost over half a bucket of oil. I have used other low level oil pumps that had a hole in the ring that screwed onto the bucket for a person to hang up the nozzle which also