12 0 Mack MP7 Idler Gear $75 USD Good used Idler gear from a Mack MP7 engine. The idler gear has been visually inspected and is in good condition. The gear teeth are in good condition. The idler gear has no dents or cracks.... ConditionUsedPart NumberP-1013407Stock NumberP-1013407 MLS Number13764404CategoryIdler Gears Last Updated8/16/2025 LocationKankakee, IL, US Sold ByRiver Valley Truck Parts (844) 604-___ SHOWNUMBERCall Seller Email Seller Save More Info