Part number helps, only if the seller is willing to get under the hood, pull the crossover and intake tube, yank the part and read the sticker - if it is still there. In most cases though they have no idea and it usually takes a drive to the location to perform the aforementioned yourself. I'm trying to save everyone time by knowing the Model and Year, and the ASR option, before going any further.

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"Patty" - 1994 E320 Touring "Sportline" 172/174 124.092
"Lucy" - 2006 Toyota Land Cruiser