Engine Parts

BESTfit Charge Air Cooler Fits Western StarThis aftermarket Western Star Constellation and Heritage Charge Air Cooler is tested and designed to replace your OE 1E3153, 1E3406, 1E3522, 1E3523, or other factory style charge air coolers. This charge air...

BESTfit Sanden Direct Mount AC Compressor With 125MM 6 Groove Clutch* High Quality AC Compressor* Saden Direct Mount* 125MM* 6 Groove Clutch* 2 Wire Connection* AC Compressor* 6 Groove Clutch* Sold Individually* Warranty On AC Compressor Against Defects...

BESTfit 4 Row Radiator With Frame* High Quality Brass Copper Radiator* 4 Row* Without Oil Cooler* With Frame* Core Size- 36.875 Inch Height- 39.50 Inch Width- 2.430 Inch Thickness- 2.5 Inch Inlet Upper Passenger Side* 4 Bolt Flanged Outlet Drive Side*...

BESTfit AC Condenser 38.5 Inch x 15.0 Inch Fits Western Star Constellation* High Quality AC Condenser * Inches Core Size  - 39.375 Inch Height  - 15 Inch Width  - 0.875 Core Thickness  - #8 And #6 Fitting Size* Sold Individually *...

BESTfit AC Drier 3.5 Inch x 10 Inch For Western Star 4964 EX/FX Constellation/Heritage/5964 SBA* High Quality AC Drier* 3.50 Inch x 10.00 Inch* With 3/8 Inch O-Ring Fittings* Sold Individually* Warranty On AC Driers Against Defects In Workmanship &...

BESTfit Radiator With 4 Row Core Fits Western Star* Made Of High Quality Metal* 4 Row Core With Frame Work* Inches Core Size  - 43.940 Height  - 39.500 Width  - 2.430 Core Thickness  - 2.500 Inlet Upper Right  - 2.500 Outlet...

BESTfit Aluminum-Plastic Radiator Fits Western Star 4900 Series 2008-2015* High Quality Radiator* Aluminum Plastic* Dimensions: - 37.625 Height  - 41.625 Width  - 2.187 2.50 Inlet/Outlet * Sold Individually* Warranty On Radiators Against...

BESTfit AC Compressor Fits Western Star 4900 - Replaces 1521853, 1521894, ABPN83304372, SK14626, LE1140, 4626SAN & 611043420* High Quality A/C Compressor* 2 Groove 132Mm Clutch* Direct Mount* Sold Individually* Warranty On A/C Compressor Against Defects...

BESTfit 2 Row Radiator W/ Out Frames your truck overheating? 4 State Trucks has got you covered. Cool it down and enjoy a radiator that will save you money. Choose a dependable and affordable option that will have a premium performance while still saving...

BESTfit Western Star 4900EX & 49100FX Constellation RadiatorEnhance your Western Star truck's cooling with this precision-fit radiator. Reliable performance and durability for optimal operation.* High Quality Plastic Aluminum Radiator* Inches Core Size-...

BESTfit Charge Air Cooler Kit Fits Western Star* High Quality Charge Air Cooler* Inches Core Size  - 38.125 Height  - 29.000 Width  - 2.250 Core Thickness  - 4.000 Inlet  - 4.000 Outlet* Sold Individually* Warranty On Charge Air...

BESTfit 4 Row Metal Radiator With FrameIs your radiator malfunctioning? If your truck is overheating, the radiator might be the problem, which 4 State Trucks can help with. Being an affordable option, you still get the premium performance and...