Engine Parts

BESTfit Charge Air Cooler Kit Fits PeterbiltThis aftermarket Peterbilt 320 Charge Air Cooler Kit is tested and designed to replace your OE N4104001 factory style charge air cooler. This charge air cooler is manufactured to OE specifications and...

BESTfit Air Conditioning Expansion Valves For PeterbiltThe BESTfit AC Peanut Expansion Valve is a high-quality replacement designed for Peterbilt trucks equipped with Signet A/C sleepers. Featuring a 16mm inlet and 20mm outlet, this expansion valve...

CAC Pipe For Peterbilt 357, 378, 379, 388 & 389 With C15, Acert & 3406E EnginesThis Stainless Steel Right Side Charge Air Cooler Pipe is the perfect replacement part for Peterbilt trucks with C15, Acert, and 3406E engines, including models 357, 378, 379,...

BESTfit Charge Air Cooler Fits PeterbiltThis aftermarket Peterbilt 357, 362, 377, 378, and 379 Super Duty Charge Air Cooler is tested and designed to replace your OE 0514968, 0515020M, 0516674, 0516676L, or other factory style charge air coolers. This...

BESTfit Charge Air Cooler Kit Fits PeterbiltThis aftermarket Peterbilt 387 Charge Air Cooler Kit is tested and designed to replace your OE1E4580, 1E4955, 1E4955D, 1E5163, or other factory style charge air coolers. This charge air cooler is manufactured...

BESTfit AC Expansion Valve Fits Peterbilt 389The BESTfit AC Expansion Valve is a high-quality replacement designed to fit Peterbilt 389 models, effectively replacing OEM part number 3S011516. This expansion valve ensures precise regulation of refrigerant...

Replacement HVAC High Pressure Switch By BESTfitThe BESTfit AC High Pressure Switch is a reliable replacement designed for Peterbilt trucks, engineered to maintain optimal HVAC system performance. Featuring an M10 x 1.25 metric thread, this high-quality...

BESTfit Charge Air Cooler Super Duty Fits PeterbiltThis aftermarket 30.669 X 33.661 Peterbilt Super Duty Charge Air Cooler is tested and designed to replace your OE 05-18730, 05-18731, 05-18751, 0706657A, or other factory style charge air coolers. This...

BESTfit Charge Air Cooler Kit Fits PeterbiltThis aftermarket Peterbilt 377, 378, and 379 Charge Air Cooler Kit is tested and designed to replace your OE 0514968, 0515020M, 0516673, 0516673L, or other factory style charge air coolers. This charge air...

BESTfit AC Evaporator Fits PeterbiltThe BESTfit AC Evaporator measuring 6.75 x 8.75 x 2.875 inches is a high-quality replacement part designed to fit select Peterbilt models. Engineered for durability and efficient cooling, this evaporator ensures...

BESTfit AC Evaporator Fits PeterbiltThe BESTfit 11.225 x 7.08 x 2.75 inch AC Evaporator is a high-quality replacement designed for Peterbilt trucks, offering reliable cooling performance for your HVAC system. Precisely sized at 11.225 inches by 7.08...

Driver Side Stainless Steel Charge Air Cooler Tube With 4 1/2 Inch DiameterThis 4-1/2 inch diameter charge air cooler tube with a single bend is designed to fit the driver's side for 379, 378, 357, and 377 Peterbilt models equipped with a 3406B CAT...