2003 Western Star 4900EX Serpentine Belt
Navigate our online catalogue to find original replacement Serpentine Belts specifically designed to fit a 2003 Western Star 4900EX.






Serpentine Belt
$49.05
$43.52
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)
Air Conditioning, Alternator and Tensioner
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
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.);





Serpentine Belt
$49.05
$43.52
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)
Air Conditioning, Alternator and Tensioner
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 Base: 14.9L 6Cyl L (-)(912) 5.39 137.0(Bore)6.65 169.0(Stroke);





Serpentine Belt
$76.73
$64.49
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)
Alternator and Air Conditioning
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
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.);





Serpentine Belt
$76.73
$64.49
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)
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 Base: 12.7L 12686cc 774ci L6 (5.1181x6.2992; 130.0x160.0);





Serpentine Belt
$76.73
$64.49
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)
Alternator and Air Conditioning
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
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);





Serpentine Belt
$81.63
$70.21
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)
Fan and Alternator
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in Italy
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.);





Serpentine Belt
$81.63
$70.21
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)
Fan and Alternator
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in Italy
Vehicle fitment:
Engine Base: 12.0L 732ci6 (5.10x5.90; 130.0x150.0);
Engine Base: 12.0L 732ci6 (5.10x5.90; 130.0x150.0);





Serpentine Belt
$62.95
$55.05
Limited Stock
Ships: Next Business Day
Pick-Up: Next Business Day
Pick-Up: Next Business Day
Fan
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
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.);





Serpentine Belt
$62.95
$55.05
Limited Stock
Ships: Next Business Day
Pick-Up: Next Business Day
Pick-Up: Next Business Day
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 Base: 12.7L 12686cc 774ci L6 (5.1181x6.2992; 130.0x160.0);





Serpentine Belt
$62.95
$55.05
Limited Stock
Ships: Next Business Day
Pick-Up: Next Business Day
Pick-Up: Next Business Day
Fan
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
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);





Serpentine Belt
$88.14
$71.90
Limited Stock
Ships: Next Business Day
Pick-Up: Next Business Day
Pick-Up: Next Business Day
Fan
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
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.);





Serpentine Belt
$88.14
$71.90
Limited Stock
Ships: Next Business Day
Pick-Up: Next Business Day
Pick-Up: Next Business Day
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 Base: 14.9L 6Cyl L (-)(912) 5.39 137.0(Bore)6.65 169.0(Stroke);

Serpentine Belt
$30.03
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 - From Fan
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;

Serpentine Belt
$42.54
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: 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;

Serpentine Belt
$67.43
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;

Serpentine Belt
$64.88
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;

Serpentine Belt
$61.18
In Stock
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 12pm)
Pick-Up: Same Business Day (Order before 12pm)
Fan and 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;


Serpentine Belt
Call for Pricing
Out of Stock
Air Conditioning - From Fan
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;