2003 Western Star 4900EX Drive Belt Tensioner Assembly
Navigate our online catalogue to find original replacement Drive Belt Tensioner Assemblies specifically designed to fit a 2003 Western Star 4900EX.






Drive Belt Tensioner Assembly
$232.46
$208.60
Limited Stock
Ships: Today, Sep. 30th
Pick-Up: Ready in 1 Hour (Order before 4:30 PM)
Pick-Up: Ready in 1 Hour (Order before 4:30 PM)
Alternator and Air Conditioning
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: -L -cc (-CID) -- Bore U/Kcm (U/Kin.) Stroke U/Kcm (U/Kin.);
Engine Base: -L -cc (-CID) -- Bore U/Kcm (U/Kin.) Stroke U/Kcm (U/Kin.);





Drive Belt Tensioner Assembly
$232.46
$208.60
Limited Stock
Ships: Today, Sep. 30th
Pick-Up: Ready in 1 Hour (Order before 4:30 PM)
Pick-Up: Ready in 1 Hour (Order before 4:30 PM)
Alternator and Air Conditioning
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 12.7L 12686cc 774ci L6 (5.1181x6.2992; 130.0x160.0);
Engine Base: 12.7L 12686cc 774ci L6 (5.1181x6.2992; 130.0x160.0);





Drive Belt Tensioner Assembly
$232.46
$208.60
Limited Stock
Ships: Today, Sep. 30th
Pick-Up: Ready in 1 Hour (Order before 4:30 PM)
Pick-Up: Ready in 1 Hour (Order before 4:30 PM)
Alternator and Air Conditioning
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 14.0L 14063cc 858ci L6 (5.2362x6.6142; 133.0x168.0);
Engine Base: 14.0L 14063cc 858ci L6 (5.2362x6.6142; 133.0x168.0);





Drive Belt Tensioner Assembly
$200.37
$184.81
In Stock
Ships: Today, Sep. 30th
Pick-Up: Ready in 1 Hour (Order before 4:30 PM)
Pick-Up: Ready in 1 Hour (Order before 4:30 PM)
Fan and Air Conditioning
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: -L -cc (-CID) -- Bore U/Kcm (U/Kin.) Stroke U/Kcm (U/Kin.);
Engine Base: -L -cc (-CID) -- Bore U/Kcm (U/Kin.) Stroke U/Kcm (U/Kin.);





Drive Belt Tensioner Assembly
$200.37
$184.81
In Stock
Ships: Today, Sep. 30th
Pick-Up: Ready in 1 Hour (Order before 4:30 PM)
Pick-Up: Ready in 1 Hour (Order before 4:30 PM)
Fan and Air Conditioning
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 14.6L 14640cc 893ci L6 (5.40x6.50; 137.2x165.1);
Engine Base: 14.6L 14640cc 893ci L6 (5.40x6.50; 137.2x165.1);





Drive Belt Tensioner Assembly
$276.69
$250.13
In Stock
Ships: Today, Sep. 30th
Pick-Up: Ready in 1 Hour (Order before 4:30 PM)
Pick-Up: Ready in 1 Hour (Order before 4:30 PM)
Fan and Alternator
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: -L -cc (-CID) -- Bore U/Kcm (U/Kin.) Stroke U/Kcm (U/Kin.);
Engine Base: -L -cc (-CID) -- Bore U/Kcm (U/Kin.) Stroke U/Kcm (U/Kin.);





Drive Belt Tensioner Assembly
$276.69
$250.13
In Stock
Ships: Today, Sep. 30th
Pick-Up: Ready in 1 Hour (Order before 4:30 PM)
Pick-Up: Ready in 1 Hour (Order before 4:30 PM)
Fan and Alternator
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 14.6L 14640cc 893ci L6 (5.40x6.50; 137.2x165.1);
Engine Base: 14.6L 14640cc 893ci L6 (5.40x6.50; 137.2x165.1);





Drive Belt Tensioner Assembly
$299.39
$269.79
Limited Stock
Ships: Next Business Day
Pick-Up: Next Business Day
Pick-Up: Next Business Day
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: -L -cc (-CID) -- Bore U/Kcm (U/Kin.) Stroke U/Kcm (U/Kin.);
Engine Base: -L -cc (-CID) -- Bore U/Kcm (U/Kin.) Stroke U/Kcm (U/Kin.);





Drive Belt Tensioner Assembly
$299.39
$269.79
Limited Stock
Ships: Next Business Day
Pick-Up: Next Business Day
Pick-Up: Next Business Day
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 12.0L 732ci6 (5.10x5.90; 130.0x150.0);
Engine Base: 12.0L 732ci6 (5.10x5.90; 130.0x150.0);

Drive Belt Tensioner Assembly
$269.97
Limited Stock
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 12pm)
Pick-Up: Same Business Day (Order before 12pm)
Alternator
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 12.0L 732ci6 (5.10x5.90; 130.0x150.0); Engine Designation: C12; Engine Manufacturer: Caterpillar;
Engine Base: 12.0L 732ci6 (5.10x5.90; 130.0x150.0); Engine Designation: C12; Engine Manufacturer: Caterpillar;
Vehicle Fitment Notes:
Smooth Pulley
Smooth Pulley

Drive Belt Tensioner Assembly
$201.21
In Stock
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 12pm)
Pick-Up: Same Business Day (Order before 12pm)
Air Conditioning
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 14.6L 14640cc 893ci L6 (5.40x6.50; 137.2x165.1); Engine Designation: C15; Engine Manufacturer: Caterpillar; Fuel Type: DIESEL;
Engine Base: 14.6L 14640cc 893ci L6 (5.40x6.50; 137.2x165.1); Engine Designation: C15; Engine Manufacturer: Caterpillar; Fuel Type: DIESEL;
Vehicle Fitment Notes:
Smooth Pulley
Smooth Pulley

Drive Belt Tensioner Assembly
$207.51
Limited Stock
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 12pm)
Pick-Up: Same Business Day (Order before 12pm)
Alternator and Air Conditioning
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 12.7L 12686cc 774ci L6 (5.1181x6.2992; 130.0x160.0); Engine Designation: Series 60; Engine Manufacturer: Detroit Diesel; Fuel Type: DIESEL;
Engine Base: 12.7L 12686cc 774ci L6 (5.1181x6.2992; 130.0x160.0); Engine Designation: Series 60; Engine Manufacturer: Detroit Diesel; Fuel Type: DIESEL;
Vehicle Fitment Notes:
Smooth Pulley
Smooth Pulley

Drive Belt Tensioner Assembly
$167.21
Limited Stock
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 12pm)
Pick-Up: Same Business Day (Order before 12pm)
Fan
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 12.7L 12686cc 774ci L6 (5.1181x6.2992; 130.0x160.0); Engine Designation: Series 60; Engine Manufacturer: Detroit Diesel; Fuel Type: DIESEL;
Engine Base: 12.7L 12686cc 774ci L6 (5.1181x6.2992; 130.0x160.0); Engine Designation: Series 60; Engine Manufacturer: Detroit Diesel; Fuel Type: DIESEL;
Vehicle Fitment Notes:
Smooth Pulley
Smooth Pulley

Drive Belt Tensioner Assembly
$254.44
Limited Stock
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 12pm)
Pick-Up: Same Business Day (Order before 12pm)
Fan
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 14.9L 6Cyl L (-)(912) 5.39 137.0(Bore)6.65 169.0(Stroke); Engine Designation: ISX 15.0; Engine Manufacturer: Cummins;
Engine Base: 14.9L 6Cyl L (-)(912) 5.39 137.0(Bore)6.65 169.0(Stroke); Engine Designation: ISX 15.0; Engine Manufacturer: Cummins;
Vehicle Fitment Notes:
Smooth Pulley
Smooth Pulley

Drive Belt Tensioner Assembly
$193.39
In Stock
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 12pm)
Pick-Up: Same Business Day (Order before 12pm)
Alternator
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 14.6L 14640cc 893ci L6 (5.40x6.50; 137.2x165.1); Engine Designation: C15; Engine Manufacturer: Caterpillar; Fuel Type: DIESEL;
Engine Base: 14.6L 14640cc 893ci L6 (5.40x6.50; 137.2x165.1); Engine Designation: C15; Engine Manufacturer: Caterpillar; Fuel Type: DIESEL;
Vehicle Fitment Notes:
Smooth Pulley
Smooth Pulley





Drive Belt Tensioner Assembly
$261.75
$250.14
Out of Stock
Fan
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: -L -cc (-CID) -- Bore U/Kcm (U/Kin.) Stroke U/Kcm (U/Kin.);
Engine Base: -L -cc (-CID) -- Bore U/Kcm (U/Kin.) Stroke U/Kcm (U/Kin.);





Drive Belt Tensioner Assembly
$261.75
$250.14
Out of Stock
Fan
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 14.9L 6Cyl L (-)(912) 5.39 137.0(Bore)6.65 169.0(Stroke);
Engine Base: 14.9L 6Cyl L (-)(912) 5.39 137.0(Bore)6.65 169.0(Stroke);





Drive Belt Tensioner Assembly
$262.98
$243.27
Out of Stock
Alternator
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: -L -cc (-CID) -- Bore U/Kcm (U/Kin.) Stroke U/Kcm (U/Kin.);
Engine Base: -L -cc (-CID) -- Bore U/Kcm (U/Kin.) Stroke U/Kcm (U/Kin.);





Drive Belt Tensioner Assembly
$262.98
$243.27
Out of Stock
Alternator
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 14.9L 6Cyl L (-)(912) 5.39 137.0(Bore)6.65 169.0(Stroke);
Engine Base: 14.9L 6Cyl L (-)(912) 5.39 137.0(Bore)6.65 169.0(Stroke);





Drive Belt Tensioner Assembly
$258.34
$222.79
Out of Stock
Fan
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: -L -cc (-CID) -- Bore U/Kcm (U/Kin.) Stroke U/Kcm (U/Kin.);
Engine Base: -L -cc (-CID) -- Bore U/Kcm (U/Kin.) Stroke U/Kcm (U/Kin.);





Drive Belt Tensioner Assembly
$258.34
$222.79
Out of Stock
Fan
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 12.7L 12686cc 774ci L6 (5.1181x6.2992; 130.0x160.0);
Engine Base: 12.7L 12686cc 774ci L6 (5.1181x6.2992; 130.0x160.0);





Drive Belt Tensioner Assembly
$258.34
$222.79
Out of Stock
Fan
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 14.0L 14063cc 858ci L6 (5.2362x6.6142; 133.0x168.0);
Engine Base: 14.0L 14063cc 858ci L6 (5.2362x6.6142; 133.0x168.0);

Drive Belt Tensioner Assembly
$269.67
Out of Stock
Alternator and Air Conditioning
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 14.9L 6Cyl L (-)(912) 5.39 137.0(Bore)6.65 169.0(Stroke); Engine Designation: ISX 15.0; Engine Manufacturer: Cummins;
Engine Base: 14.9L 6Cyl L (-)(912) 5.39 137.0(Bore)6.65 169.0(Stroke); Engine Designation: ISX 15.0; Engine Manufacturer: Cummins;
Vehicle Fitment Notes:
Smooth Pulley
Smooth Pulley





Drive Belt Tensioner Assembly
$365.74
Out of Stock
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Designation: ISX 15.0; Engine Manufacturer: Cummins;
Engine Designation: ISX 15.0; Engine Manufacturer: Cummins;