8 0 2015 Paccar MX-13 Engine Block Stiffener $175 USD Used 2015 Paccar MX13 Engine Block Stiffener , Removed from 2015 Peterbilt 579 , Engine: Paccar , Model: MX13 , P/N: 1863762 , OEM , In good condition , can be... ConditionUsedPart Number1863762 MLS Number13283268CategoryEngine Block Stiffeners Last Updated12/12/2024 LocationMineral, VA, US Sold ByInside Auto Parts (888) 693-___ SHOWNUMBERCall Seller Email Seller Save More Info