Today we're going to be taking a look at the Atwood AMPlock Trailer Coupler Latch Lock, part number is AT89011. The Atwood Trailer Coupler Lock is really going to offer us the maximum in security in securing our locks. We've got a shatter proof stainless steel body, a hardened chrome plated shackle and also a fully reinforced unused portion of our shackle to prevent any types of cutters or saws… see more >