Ordering a new truck for GP20

I’m not sure if I got the correct part number. I went looking on the Lionel site. I need a “complete” replacement truck for my NP 8679. Absolutely the complete truck with coupler, end with steps and plastic side frames, everything. Is this the right part number? Whats the best way to buy one. Anyone got any ideas on prices? How about a used truck?

Cal Jeff at the train tender or email him at jeff@ttender.com web site (for Phone numbers) www.ttender.com