2021 Peterbilt 389 Serpentine Belt
Browse our online catalogue to find original replacement Serpentine Belts specifically designed to fit a 2021 Peterbilt 389.



2021 Peterbilt 389 Serpentine Belt
$58.08
$48.46
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
Made in Italy
Fits: 2021 Peterbilt 389
Equipped With:
Engine Base: 12.9L 787ci6;
Engine Base: 12.9L 787ci6;



2021 Peterbilt 389 Serpentine Belt
$46.51
$40.19
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
Made in Italy
Fits: 2021 Peterbilt 389
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 389 Serpentine Belt
$99.76
$82.70
Limited 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)
Fan and Alternator
Required Per Vehicle: 1
Made in Italy
Fits: 2021 Peterbilt 389
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 389 Serpentine Belt
$88.33
10+ 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 389
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;
Vehicle Fitment Notes:
w/ 91" Belt
w/ 91" Belt

2021 Peterbilt 389 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 389
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 389 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 389
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;
Vehicle Fitment Notes:
W/ 85 3/4" Belt
W/ 85 3/4" Belt



2021 Peterbilt 389 Serpentine Belt
$81.44
Out of Stock
Condition: New
Fan
Required Per Vehicle: 1
Fits: 2021 Peterbilt 389
Equipped With:
Engine Base: 12.9L 787ci6;
Engine Base: 12.9L 787ci6;