If the AC in your Kenworth or Peterbilt truck has given up, this replacement compressor might be just what you need. It's an SD7H15 compressor assembly that comes with the clutch already attached, making installation a bit easier. Designed to fit a range of models: Kenworth T450 (1993-1996) and T600A (1994-2007); Peterbilt 320 (2000-2004), 330 (2003), 357 (1999-2002), 377 (2000), 378 (1999-2002), and 379 (2003). Always double-check your exact truck model and year before ordering – compatibility is key! This compressor has 2 grooves, a 125mm pulley diameter, uses R134a refrigerant, and comes pre-filled with about 180ml of PAG 100 oil. Important note: if your old compressor failed, you really should flush the whole AC system before putting this new one in, to avoid contamination. Made from quality materials for durability and reliable performance. Comes with a one-year warranty for peace of mind. Get your cab cool and comfortable again without paying dealership prices. If you're unsure about fit, message the seller with your truck details – they can help confirm.