Engine Parts

Replacement Stainless Steel Passenger Side CAC Pipe With 4 Inch DiameterUpgrade your rig with this high-quality BESTfit 304 Stainless Steel Charge Air Cooler Pipe, designed to replace OEM part K180-18309 on Kenworth W900L models. Built for the passenger...

BESTfit AC Pressure Cycling SwitchThe BESTfit Low Pressure AC Switch is a high-quality replacement designed specifically for Peterbilt trucks, ensuring efficient and reliable HVAC system operation. Featuring an M12 x 1.50 metric thread, this pressure...

BESTfit Best Fit AC Condenser Fits PeterbiltThe BESTfit AC Condenser 31.5 x 25 inch is a premium replacement part designed for Peterbilt 379, 386, and 387 models. Featuring a robust core size of 31.5 inches in height, 25 inches in width, and 0.625 inches...

BESTfit Pete 362 AC Receiver DrierThe BESTfit AC Receiver Drier is a high-quality replacement designed specifically for Peterbilt 362. Featuring a durable 3-inch diameter and precise fit, this receiver drier ensures optimal performance in your truck's...

BESTfit Heater Core Fits PeterbiltThe BESTfit Heater Core is a premium replacement part designed for Peterbilt trucks from 1998 to 2011, which require 5/8 to 3/4 bushings. This high-quality heater core measures 10 inches in length, 3 inches in width, and...

BESTfit AC Condenser For Peterbilt 357, 375, 377, 378, 379The AC Condenser with Serpentine Flow Design features an anti-corrosive paint layer that is specifically designed to resist damage and aging. This protective coating helps to prevent corrosion...

BESTfit Peterbilt HVAC Weldment Case For CabReplace your worn or damaged HVAC housing with the BESTfit Cab HVAC Weldment Case, engineered to fit and replace part number 510575. This sturdy weldment case safeguards your truck's HVAC components, improving...

BESTfit 10 X 7.625 Inch Evaporator Fits Peterbilt 359 1977-1987This BESTfit AC Evaporator Coil fits 1967 through 1987 Peterbilt 359 models. It is built to keep the inside of your cab or sleeper at its desired comfort level. With a number 8 o-ring fitting...

BESTfit AC Grilldenser Fits Peterbilt 359 1979-1986This BESTfit AC Grilldenser is a perfect match for Peterbilt 359 models from 1979 through to 1986. With measurements set at 26.00 inches in height, 36.750 inches in width, and 1.00 inch in thickness,...

BESTfit HVAC Moisture IndicatorThe BESTfit HVAC Moisture Indicator for Peterbilt 359 is a high-quality replacement for part number 70R3530, designed to protect your truck's air conditioning system. Featuring both 0.375 inch male insert and female O-ring...

BESTfit AC Condenser Fits PeterbiltKeep your Peterbilt 379 and 387 trucks cool with the BESTfit AC Condenser, featuring a 30 x 23.75 inch core size and 0.75-inch thickness. Engineered for durability and efficiency, this high-quality condenser improves...

BESTfit AC Evaporator Fits PeterbiltThis Universal Air Conditioner Evaporator Core is built to OEM specifications, ensuring a perfect fit and high-efficiency function as your factory component. It helps maintain a desired temperature inside your...