1997 Dodge Ram Van Cargo Rear Door Latch
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Normally, they are fairly reliable. I have replace numerous door handles, but, very few latches. No one I am aware of sells repair parts for them, they just get replaced as a unit. Scoring a few from the junkyard would be a good supply of spare parts... mix and match, and two or three of them should keep you good to go for quite some time. (provided you can find them when you need them. )