Parayota

the sticker under the hood says I have a 22 R-E RN engine, what does the RN stand for?

se7enine

iTrader: (2)

• RN = 22R or 22RE engine

http://www.4crawler.com/4x4/ToyVIN.shtml

old87yota

^^ Exactly, RN is the part chassis code. It told you that the vehicle had an R series engine installed from the factory (i.e. 22R, 22R-E).

The 3.0L 3VZE had a VZN engine/chassis code for the VZ series engine.
The 2.4L Diesel engine (pretty rare in the U.S.) had an LN engine/chassis code for the L series diesel engine.