I've had to replace two clearance lights (the small orange ones) within three months of each other, one on each side of the van.  The van is only three years old.  I had a previous van for ten years and never changed one.  What have others experienced?

I bought mine at Repco and installed them myself.  They were the exact same LED type.

I had problems with mine getting water in and then failing. They were the type that had half orange and half red lens, and the join between the two halves wasn't watertight. They were LED Autolamps brand and I replaced them with Narva ones and never had a problem again.