Kenworth Air Conditioning Receiver Drier OEM K251-571 FREE SHIPPING! Fits: Kenworth Models OEM# K251-571 Limited One Year, unlimited mile, Nationwide Warranty Diameter: 3.0in; Length: 10 in; Fitting In: 3/8 FO; Sight Glass: Top;Fitting Out: 3/8 MIO; Pressure Relief Valve: Top; Desiccant: 12 ci; OEM: K251-571; Aftermarket num: 33478; Vehicle Make: Kenworth Quality you can rely on! Ships same day or next day Monday-Friday!