2003 Peterbilt 379 Serpentine Belt
Navigate our online catalogue to find original replacement Serpentine Belts specifically designed to fit a 2003 Peterbilt 379.






Serpentine Belt
$41.34
$36.68 CAD
In Stock
Condition: New
Ships: Today, Oct. 8th
Pick-Up: Ready in 1 Hour (Order before 4:30 PM)
Pick-Up: Ready in 1 Hour (Order before 4:30 PM)
Fan To Air Conditioning
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 14.6L 14636cc 893ci L6 (5.40x6.50; 137.2x165.1);
Engine Base: 14.6L 14636cc 893ci L6 (5.40x6.50; 137.2x165.1);





Serpentine Belt
$41.34
$36.68 CAD
In Stock
Condition: New
Ships: Today, Oct. 8th
Pick-Up: Ready in 1 Hour (Order before 4:30 PM)
Pick-Up: Ready in 1 Hour (Order before 4:30 PM)
Fan To Air Conditioning
Required Per Vehicle: 1
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);





Serpentine Belt
$41.34
$36.68 CAD
In Stock
Condition: New
Ships: Today, Oct. 8th
Pick-Up: Ready in 1 Hour (Order before 4:30 PM)
Pick-Up: Ready in 1 Hour (Order before 4:30 PM)
Fan To Air Conditioning
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 15.8L 15830cc 966ci L6 (5.5118x6.7323; 140.0x171.0);
Engine Base: 15.8L 15830cc 966ci L6 (5.5118x6.7323; 140.0x171.0);





Serpentine Belt
$45.75
$38.02 CAD
10+ In Stock
Condition: New
Ships: Today, Oct. 8th
Pick-Up: Ready in 1 Hour (Order before 4:30 PM)
Pick-Up: Ready in 1 Hour (Order before 4:30 PM)
Air Conditioning
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
$75.88
$63.48 CAD
In Stock
Condition: New
Ships: Today, Oct. 8th
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
Required Per Vehicle: 1
Made in Italy
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
$86.37
$74.12 CAD
In Stock
Condition: New
Ships: Today, Oct. 8th
Pick-Up: Ready in 1 Hour (Order before 4:30 PM)
Pick-Up: Ready in 1 Hour (Order before 4:30 PM)
Fan To Alternator
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 10.3L 10309cc 629ci L6 (4.9213x5.5118; 125.0x140.0);
Engine Base: 10.3L 10309cc 629ci L6 (4.9213x5.5118; 125.0x140.0);
Vehicle Fitment Notes:
with 71-1/2in Long Belt
with 71-1/2in Long Belt





Serpentine Belt
$86.37
$74.12 CAD
In Stock
Condition: New
Ships: Today, Oct. 8th
Pick-Up: Ready in 1 Hour (Order before 4:30 PM)
Pick-Up: Ready in 1 Hour (Order before 4:30 PM)
Fan To Alternator
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 12.0L 732ci6 (5.10x5.90; 130.0x150.0);
Engine Base: 12.0L 732ci6 (5.10x5.90; 130.0x150.0);
Vehicle Fitment Notes:
with 71-1/2in Long Belt
with 71-1/2in Long Belt





Serpentine Belt
$91.97
$74.79 CAD
Limited Stock
Condition: New
Ships: Today, Oct. 8th
Pick-Up: Ready in 1 Hour (Order before 4:30 PM)
Pick-Up: Ready in 1 Hour (Order before 4:30 PM)
Fan To Alternator
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 10.3L 10309cc 629ci L6 (4.9213x5.5118; 125.0x140.0);
Engine Base: 10.3L 10309cc 629ci L6 (4.9213x5.5118; 125.0x140.0);
Vehicle Fitment Notes:
with 73in Long Belt
with 73in Long Belt





Serpentine Belt
$91.97
$74.79 CAD
Limited Stock
Condition: New
Ships: Today, Oct. 8th
Pick-Up: Ready in 1 Hour (Order before 4:30 PM)
Pick-Up: Ready in 1 Hour (Order before 4:30 PM)
Fan To Alternator
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 12.0L 732ci6 (5.10x5.90; 130.0x150.0);
Engine Base: 12.0L 732ci6 (5.10x5.90; 130.0x150.0);
Vehicle Fitment Notes:
with 73in Long Belt
with 73in Long Belt





Serpentine Belt
$93.95
$82.53 CAD
In Stock
Condition: New
Ships: Today, Oct. 8th
Pick-Up: Ready in 1 Hour (Order before 4:30 PM)
Pick-Up: Ready in 1 Hour (Order before 4:30 PM)
Alternator
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 10.8L 10834cc 661ci L6 (4.9213x5.7874; 125x147);
Engine Base: 10.8L 10834cc 661ci L6 (4.9213x5.7874; 125x147);





Serpentine Belt
$101.32
$87.28 CAD
In Stock
Condition: New
Ships: Today, Oct. 8th
Pick-Up: Ready in 1 Hour (Order before 4:30 PM)
Pick-Up: Ready in 1 Hour (Order before 4:30 PM)
Fan To Alternator
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 10.3L 10309cc 629ci L6 (4.9213x5.5118; 125.0x140.0);
Engine Base: 10.3L 10309cc 629ci L6 (4.9213x5.5118; 125.0x140.0);
Vehicle Fitment Notes:
with 74in Long Belt
with 74in Long Belt





Serpentine Belt
$101.32
$87.28 CAD
In Stock
Condition: New
Ships: Today, Oct. 8th
Pick-Up: Ready in 1 Hour (Order before 4:30 PM)
Pick-Up: Ready in 1 Hour (Order before 4:30 PM)
Fan To Alternator
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 12.0L 732ci6 (5.10x5.90; 130.0x150.0);
Engine Base: 12.0L 732ci6 (5.10x5.90; 130.0x150.0);
Vehicle Fitment Notes:
with 74in Long Belt
with 74in Long Belt





Serpentine Belt
$86.80
$75.57 CAD
Limited Stock
Condition: New
Ships: Today, Oct. 8th
Pick-Up: Ready in 1 Hour (Order before 4:30 PM)
Pick-Up: Ready in 1 Hour (Order before 4:30 PM)
Fan, Alternator and Idler
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 15.8L 15830cc 966ci L6 (5.5118x6.7323; 140.0x171.0);
Engine Base: 15.8L 15830cc 966ci L6 (5.5118x6.7323; 140.0x171.0);





Serpentine Belt
$50.08
$48.77 CAD
In Stock
Condition: New
Ships: Today, Oct. 8th
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
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 14.6L 14636cc 893ci L6 (5.40x6.50; 137.2x165.1);
Engine Base: 14.6L 14636cc 893ci L6 (5.40x6.50; 137.2x165.1);





Serpentine Belt
$50.08
$48.77 CAD
In Stock
Condition: New
Ships: Today, Oct. 8th
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
Required Per Vehicle: 1
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);





Serpentine Belt
$99.76
$82.70 CAD
Limited Stock
Condition: New
Ships: Today, Oct. 8th
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
Required Per Vehicle: 1
Made in Italy
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
$32.51 CAD
Limited Stock
Condition: New
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 12pm)
Pick-Up: Same Business Day (Order before 12pm)
Air Conditioning
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;
Engine Base: 14.6L 14640cc 893ci L6 (5.40x6.50; 137.2x165.1); Engine Designation: C15; Engine Manufacturer: Caterpillar;

Serpentine Belt
$36.57 CAD
10+ In Stock
Condition: New
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
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
$67.26 CAD
In Stock
Condition: New
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
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
$81.11 CAD
In Stock
Condition: New
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
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 10.3L 10309cc 629ci L6 (4.9213x5.5118; 125.0x140.0); Engine Designation: C10; Engine Manufacturer: Caterpillar;
Engine Base: 10.3L 10309cc 629ci L6 (4.9213x5.5118; 125.0x140.0); Engine Designation: C10; Engine Manufacturer: Caterpillar;

Serpentine Belt
$81.11 CAD
In Stock
Condition: New
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
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
$48.18 CAD
Limited Stock
Condition: New
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
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;
Engine Base: 14.6L 14640cc 893ci L6 (5.40x6.50; 137.2x165.1); Engine Designation: C15; Engine Manufacturer: Caterpillar;

Serpentine Belt
$84.50 CAD
Limited Stock
Condition: New
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 12pm)
Pick-Up: Same Business Day (Order before 12pm)
Fan
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
Call for Pricing
Out of Stock
Condition: New
Fan and Alternator
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;
Engine Base: 14.6L 14640cc 893ci L6 (5.40x6.50; 137.2x165.1); Engine Designation: C15; Engine Manufacturer: Caterpillar;


Serpentine Belt
Call for Pricing
Out of Stock
Condition: New
Alternator and Air Conditioning
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;