I thought I'd share the following information, because I couldn't find it anywhere on the web.

I recently purchased a new LG Electric Dryer (model # DLEX3570W). I knew I would need to modify the venting from the default rear vent to a right-side vent, but the company I bought I the dryer from didn't sell the kit and referred me to LG. LG in turn said that they didn't sell the kit either, but confirmed that the part I'd need was the one listed in the user manual (part number 383EEL9001B) and referred me to Andrews Electronics, the US distributor for LG parts.

Andrews Electronics informed me that part number 383EEL9001B had been replaced with part number 3911EZ9131X, but that the kits were identical. The price quoted was $70.

Before making the purchase, I noticed that Sears sold a LG dryer side vent kit with the model number DVK1 for about $42 and the same part was available from sellers on ebay for around $25. From the photos I found of these different kits, they looked very similar; however, I couldn't find any information stating that they were the same or different. So I bought both the DVK1 for $25 and the 3911EZ9131X for $70. When I had both kits in hand, I compared them piece-by-piece for dimensions, materials and construction. They were identical. I paid the $5 return shipping on the $70 kit and kept the DVK1.

I hope this helps other LG dryer owners.