Arrowhead PK8012 Replacement Stem for 12-Inch 450 and 480 Series FF Hydrants, 16-Inch Total Length

Works great and stopped the leak. Be sure to watch the size. This picture is of the stem I pulled originally, and the replacement was the same size. It's not quite 16 inches in total length like the description says.There are some nuances, but nothing that can't be fixed:1) Like other reviewers have said, the back metal square thing is too big. I just carefully used a hand file until it fit.2) the part where the handle connects isn't tapped for the screw. I guess the replacement screw that comes with the Arrowhead handle is a self tapping screw. It's pretty hard to tap something so small. That took a while to cut the threads but it also works fine now.3) It required a decent amount of force to turn it off the first time. Be sure to use a little silicone paste on the rubber washer but some people may need the valve seat to be fixed or replaced. If the valve seat is too far gone, the only option you have it to just replace the whole thing.

This is the third PK80xx series Replacement Stem for c1993 Arrowhead faucets I have ordered. What the manufacturer and seller do not disclose is that the rectangular shaped brass end that holds the flat washer requires some filing down (at least for older product) in order to fit into the hydrant housing.This is not a "deal breaker" as it is much easier to file the end so that it fits than to cut into a wall to replace the entire faucet.Filing the ends: Recommend filing and rounding off the sharp rectangular brass edges only a little (aprox 0.005") at a time. Take the same amount off each end to ensure that the attached washer remains centered on the rectangular end. Also, use an inexpensive caliper to measure how much brass is filed off, and to make sure the cross-dimensions remain equal.Other notes:Stem seal on the old product and new replacement are different. The old stem seals utilized a packing gland, while the replacement uses a sliding O-ring mounted to a piston that moves in & out of a cylinder--This may be a good improvement--Time will tell.Also, on one replacement stem, I could not screw the existing faucet handle/knob completely tight. A washer under the head of the screw took care of the problem. I did not chase the stem internal threads with a tapping tool to see if it had been fully tapped. Fully disclosure, I reused the faucet handles & screws that were on the old hydrants rather than installing new handles & screws as the instructions directed. If the handles and screws really need to be replaced, they should be part of the stem kit.One more thing, I would recommend using a food-grade silicon grease to lubricate the faucet washer and O-ring & cylinder prior to final installation.

Our 22 year old home needed both the original Arrowhead hose bibs rebuilt, but no one locally carried the parts needed. Amazon came through again with the finest product delivered overnight! A godsend!

Had to grind down small square piece on end in order to get it to slide in.After that it did work and did not leak.

Couldn’t get in the store, worked great