Engine Parts

BESTfit Open 330/370 Close 180/240 PSI High Pressure Switch Fits PeterbiltEnsure reliable performance and safety in your truck's air conditioning system with the BESTfit 2 Pin High Pressure Switch. Designed to replace part number 18-03835 and P93CAA3605...

BESTfit 12V AC Compressor Fits Peterbilt With Serpentine Belt - Replaces F69-6001-122 & LF0122The BestFit Sanden 4039 AC Compressor with a 125mm 6-groove clutch is designed for trucks with serpentine belt systems, offering reliable and efficient cooling...

BESTfit Flange Mount Block Style Expansion Valve With 1.5 Ton RatingThe BESTfit Block Style AC Expansion Valve is a premium replacement designed for Peterbilt 387 and 587 models, delivering reliable air conditioning performance with a 1 ton rating...

AC Evaporator Fits Peterbilt 320, 357, 359, 362, 375, 377, 378 & 379The BestFit AC Evaporator is a reliable replacement designed to restore efficient cooling performance to your vehicle's air conditioning system. Compatible with multiple part numbers...

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...