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This to assist anyone else trying to find this very hard to locate part. These clamps go around the fittings to prevent 'blow off' if the spring ring quick connect fails on an A/C line. But these clamps corrode and break, get lost, etc.
There are different sizes, 1/2", 5/8", 3/4", maybe more. All have the SAME part number. 19e746. I finally found out that the 5/8" has a suffix on the p/n of 'B', and the 3/4" has a suffix of "AA".
So if you have to order, use the p/n, but specify the suffix with 'NO SUBSTITUTIONS'. Most common is the 5/8". About $10.
Librum
