The links that I posted maybe?

 

I was waiting until I received them before posting the details but for anyone who wishes to do as I did and take a chance, they are item number 22 on this site: Fuel Injector Connectors, Plugs, and Connector Adapters for; Automotive, Truck, Marine And Motorcycle Injectors Note that there are two subtly different ones shown. I photographed mine and then compared it carefully with those shown. The one with the wider groove corresponds with the appearance of mine, so I ordered four. They are available as a repair item in disassembled form or assembled with a pigtail installed. If they are wrong I'm only out $20!

 

Somehow, the site name got changed after I wrote it. It is: injectorrepair.com/fuel-injector-connectors/.

 

If it's only the clip on the connector that broke off, don't worry. I never even bothered to zip tie my broken clips. 1 broken fuel injector clip, both cam sensors, and #4 coil pack. Been broken for 2 years worth of hooning, if it was a problem I would have seen a symptom by now.

 

Maybe a little late for you, but in case anyone else needs some, I just installed these a couple weeks ago and they work great:

https://www.ebay.com/itm/183391824620

Had to cut off the old connectors and solder in these new ones, a little tedious but they're cost effective and clip in just like new.

 

Thank you, that's good to know. Perhaps i didn't explain sufficiently in my first post. I have two connectors which are intact, one which broke the fastening clips when I squeezed them and one which disintegrated in my fingers. I have no choice but to replace the last mentioned one and I am so concerned that the others may be on the verge of becoming like it that I feel that I must replace them all. My car is a daily driver and I don't want to be left stranded because one or more of these connectors broke while in use. The experience suggests to me that replacing these should be a part of a major service which should be performed at 100,000 miles. I have never experienced this problem with any of my other vehicles or any previous ones and I speculate that the material used for the body of the connector may be mis-specified.

 

I have received the connectors which I ordered and they are a perfect fit. I chose the repair kit and it is complete and ready to solder to the wires. Note that you insert the blue piece last since this locks in the metal connectors.