Make Caterpillar Model 231D Category Construction / Excavators / Excavators - Tracked Year 1991 Location North America: United States of America Shelby Twp., MI USA Hours 4,741 Serial Number 1NK00046 Price $29,900USD EUR GBP AUD CAD JPY BGN BRL CHF CNY CZK DKK HKD HRK HUF IDR ILS INR KRW MXN MYR NOK NZD PHP PLN RON RUB SEK SGD THB TRY ZAR