FixVault

Spring Lock Coupling: Notes

WARNING: This page is about a different car, the 2007 Ford Pickup, 2007 Ford F550 Super Duty, 2007 Ford F450 Super Duty, and 2007 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Identifying Spring Lock Coupling
GF0004380Courtesy of FORD MOTOR CO.
Item Part Number Description
1 - Plastic indicator ring
2 - Female fitting
3 19E746 A/C tube lock coupling clip
4 19E576 A/C tube lock coupling spring
5 - Cage
6 19E889 O-ring seals
7 - Male fitting

The spring lock coupling is a refrigerant line coupling held together by a garter spring inside a circular cage.