4 0 Blue Bird BBCV $400 USD Quality used SMC air door cylinder assembly with valve, solenoids #10010143, and pressure switches #01940873 for Blue Bird entrance door (1-1/2" x 15-1/4"), Low Cost, Warranty, Fast... Quantity4ConditionUsedStock NumberMW21-DA-11867-STK MLS Number12188337CategoryBody Misc. Parts Last Updated9/12/2025 LocationBig Lake, MN, US Sold ByQuality Bus and Truck Parts (844) 580-___ SHOWNUMBERCall Seller Email Seller Save More Info