2021 Peterbilt 579 Serpentine Belt
Browse our online catalogue to find original replacement Serpentine Belts specifically designed to fit a 2021 Peterbilt 579.



2021 Peterbilt 579 Serpentine Belt
$45.75
$38.02
10+ In Stock
Condition: New
Ships: Today, Feb. 12th
Pick-Up: Ready in 1 Hour (Order before 4:00 PM)
Pick-Up: Ready in 1 Hour (Order before 4:00 PM)
Air Conditioning
Required Per Vehicle: 1
Fits: 2021 Peterbilt 579
Equipped With:
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);



2021 Peterbilt 579 Serpentine Belt
$65.44
$57.93
In Stock
Condition: New
Ships: Today, Feb. 12th
Pick-Up: Ready in 1 Hour (Order before 4:00 PM)
Pick-Up: Ready in 1 Hour (Order before 4:00 PM)
Air Conditioning
Required Per Vehicle: 1
Fits: 2021 Peterbilt 579
Equipped With:
Engine Base: 12.9L 787ci6;
Engine Base: 12.9L 787ci6;

2021 Peterbilt 579 Serpentine Belt
$36.12
In Stock
Condition: New
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 11:30am)
Pick-Up: Same Business Day (Order before 11:30am)
Air Conditioning
Required Per Vehicle: 1
Fits: 2021 Peterbilt 579
Equipped With:
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;

2021 Peterbilt 579 Serpentine Belt
$119.74
In Stock
Condition: New
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 11:30am)
Pick-Up: Same Business Day (Order before 11:30am)
Fan
Required Per Vehicle: 1
Fits: 2021 Peterbilt 579
Equipped With:
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;

2021 Peterbilt 579 Serpentine Belt
$75.18
Limited Stock
Condition: New
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 11:30am)
Pick-Up: Same Business Day (Order before 11:30am)
Fan
Required Per Vehicle: 1
Fits: 2021 Peterbilt 579
Equipped With:
Engine Base: 12.9L 787ci6; Engine Designation: MX-13; Engine Manufacturer: PACCAR; Fuel Type: DIESEL;
Engine Base: 12.9L 787ci6; Engine Designation: MX-13; Engine Manufacturer: PACCAR; Fuel Type: DIESEL;
Vehicle Fitment Notes:
Replaces 4120476F
Replaces 4120476F

2021 Peterbilt 579 Serpentine Belt
$51.49
Limited Stock
Condition: New
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 11:30am)
Pick-Up: Same Business Day (Order before 11:30am)
Air Conditioning
Required Per Vehicle: 1
Fits: 2021 Peterbilt 579
Equipped With:
Engine Base: 12.9L 787ci6; Engine Designation: MX-13; Engine Manufacturer: PACCAR; Fuel Type: DIESEL;
Engine Base: 12.9L 787ci6; Engine Designation: MX-13; Engine Manufacturer: PACCAR; Fuel Type: DIESEL;



2021 Peterbilt 579 Serpentine Belt
$149.97
$121.78
Limited Stock
Condition: New
Ships: Next Business Day
Pick-Up: Next Business Day
Pick-Up: Next Business Day
Fan
Required Per Vehicle: 1
Fits: 2021 Peterbilt 579
Equipped With:
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);



2021 Peterbilt 579 Serpentine Belt
$75.30
Out of Stock
Condition: New
Fan
Required Per Vehicle: 1
Fits: 2021 Peterbilt 579
Equipped With:
Engine Base: 12.9L 787ci6;
Engine Base: 12.9L 787ci6;