Western Star Parts
Aftermarket parts for Western Star trucks — the severe-service 4900 and the newer 5700/49X. Logging, oilfield and heavy-haul duty is hard on cooling, wheel-end and body parts; we stock direct-replacement components with OEM cross-reference numbers for the trucks that work hardest.
In Stock30% OFFPartStop
TR0292S11 Hose Separator Clamp Heavy Duty Trucks 34022 34021BULK 17-155
OEM 34022
Air & Brake Lines
In Stock30% OFFPartStop
TR075S115 Triple Hole Hose Clamp Air Lines + Electrical Cable
OEM 34021
Air & Brake Lines
PartStop
16.5x5 Brake Drum 10 Bolt 11.25" Outboard Steer Axle HD , 3598X, CV71063
Part # 3598X
Brakes & Wheel Ends
PartStop
18x7 Brake Drum 10 Bolt 11.25" Outboard Heavy Duty Truck CV70773, 66665B
Part # 66665B
Brakes & Wheel Ends
PartStop
430mm Air Disc Brake Rotor Kit ConMet ADB22X 10 Bolt ,CV60479K, 10080820
Part # CV60479K
Brakes & Wheel Ends
PartStop
Steer Axle Wheel Oil Seal 3.5" x 4.84" SKF Truck OS0162 , 35058
Part # 35058
Brakes & Wheel Ends
PartStop
Steer Axle Wheel Oil Seal 3.5" x 4.84" SKF Plus XL OS0216 , 35066
Part # 35066
Brakes & Wheel Ends
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Tapered Roller Bearing 75x130x33.25mm Truck Bearing UVS0255 , 32215
Part # 32215
Brakes & Wheel Ends
In Stock30% OFFPartStop
Belt Tensioner Fits Freightliner Western Star DD13 DD15 0127425000 , 01-27425-000
OEM 01-27425-000
Engine & Performance
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Universal Silicone Hump Hose Coupler - 2" ID x 6" Length - 4-Ply Reinforced for Turbo, Intake & Coolant F02484S352
OEM F02484S352
Cooling System
PartStop
EGR Silicone Reducer Hose for Cummins ISX15 - 57mm to 48mm ID - Aramid Reinforced with Stainless Steel Ring F02486S352
OEM 3687223
Cooling System
PartStop
90-Degree Molded Elbow Hose - 1.00" ID - Fits Detroit Diesel Series 50 & 60 - Replaces 23518315,F02518S352
OEM 23518315
Cooling System
PartStop
Molded Crankcase Breather Hose - 1.00" ID - Fits Cummins ISX15 & QSX15 - Replaces 4298695, 3427229,F02519S352
OEM 4298695
Cooling System
In Stock30% OFFPartStop
Silicone Hose, 3.5" ID 5"X 5" Elbow High Temp Silicone Charge Air Cooler Hose with 2 Clamps F01103S352
OEM F01103S352
Cooling System
In Stock30% OFFPartStop
Silicone Hose, 4" ID 5"X 5" Elbow High Temp Silicone Charge Air Cooler Hose with 2 Clamps F01104S352
OEM F01104S352
Cooling System
In Stock30% OFFPartStop
11549 Hose Separator Heavy Duty Trucks 100469D 1004690 10QE125P1 5396-11549
OEM 11549
Cooling System
In Stock30% OFFPartStop
Oil Filter Fits DD13 DD15 DD16 Fits Freightliner A4731800909
OEM A4731800909
Engine & Performance
In Stock10% OFFPartStop
Detroit DD15 Cylinder Head A4730102620 6-Cyl EPA10 GHG14 Freightliner Cascadia
OEM A4730102620
Engine & Performance
In Stock10% OFFPartStop
RA0001407278 DEF Pump Fits Freightliner Cascadia DD13 DD15
Part # RA0001407278
Exhaust & Emissions
In Stock10% OFFPartStop
35007 DPF Fits Freightliner Cascadia DD13 DD15 Diesel Filter , A0004903792
Part # 35007
Exhaust & Emissions
In Stock20% OFFPartStop
Outlet NOx Sensor 12V 4-Pin Fits Freightliner Western Star DD13 DD15 A0101532328
OEM A0101532328
Exhaust & Emissions
In Stock25% OFFPartStop
A0101538128ASAS NOx Sensor Freightliner Western Star A0101538128 RA0101538128
OEM A0101538128ASAS
Exhaust & Emissions
In Stock30% OFFPartStop
A0000905051 Diesel Fuel Filter Fits Freightliner A485007, FS20083, P580710
OEM A0000905051
Fuel System
In Stock10% OFFPartStop
Fuel Injector Fits Detroit DD13 DD15 DD16 A4710700187
OEM A4720700887
Fuel System
In Stock10% OFFPartStop
295/75R22.5 MICHELIN X Line Energy Z+ Commercial Steer Tire 16PR 2 TIRES
Part # 295/75R22.5
Tires, Wheels & Hubcaps