6 0 Peterbilt Paccar MX-13 Diesel Engine Valve Cover Set Gasket, Screws P# 120523 $199.99 USD (GOOD USED TAKEOUT) 2012 PACCAR MX-13 DIESEL ENGINE VALVE COVER, FROM PETERBILT 579 TRUCK (VALVE COVER - SCREWS AND GASKET SET - GOOD CONDITION) PART# 120523, STOCK# SC217130-12. FOR MORE... ConditionUsedPart Number120523Stock NumberSC217130-12 MLS Number10119805CategoryValve Covers Last Updated10/13/2020 LocationRockwood, TN, US Sold ByMachinery and Truck Parts (844) 835-___ SHOWNUMBERCall Seller Email Seller Save More Info