View 5 Photos View 0 Videos Used Paccar Left Control Door Relay Module, Part # Q21-1050 Price Drop $250 USD Paccar-Kenworth LH Door Control Module *Fits 2006–2018: C500, T800, W900B, W900L, W900S, 2006–2010: T2000, 2006–2007: T300, T600, T600 Aerocab, T600B, 2008–2017: T660, 2010–2018: T440, ... ConditionUsedFits To Make(s)KenworthPart NumberQ21-1050Stock Number976584 MLS Number14159617CategoryInterior Misc. Parts Last Updated9/17/2026 LocationFarr West, UT, US Sold ByRocky Mountain Truck Parts (855) 980-___ SHOWNUMBERCall Seller Email Seller Save More Info