Engine Parts

BESTfit 12V Sanden Super HD AC Compressor Fits Peterbilt 320, 382, 384, 386, 387, 389 & 587The BestFit Sanden 4376 AC Compressor with a 125mm 6-groove clutch offers premium quality and performance for truck air conditioning systems. Designed for easy...

BESTfit Flange-Mount Expansion Block For Peterbilt 384, 386, 388, 389 & 587Restore your vehicle's air conditioning efficiency with the BestFit Expansion Block, a direct replacement for part number 85104197. Engineered for precision and durability, this...