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2021 Peterbilt 389 Parts
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![FleetRunner Micro-V Serpentine Belt [Length: 81 3/8 in.]](https://www.jegs.com/images/mini_100/400/465/465-k080808.jpg)
![FleetRunner Micro-V Serpentine Belt [Length: 81 3/8 in.]](https://www.jegs.com/images/mini_200/400/465/465-k080808.jpg)
R1 CONCEPTS
GeoSpec-Coated Rotor, 2005-2017 Fits Multiple Makes/Models, Position: Front & Rear
Part Number: 820-RRE-60008
$41165
Ships on 10/13/2026
Lowest price guarantee
R1 CONCEPTS
GeoSpec-Coated Rotor, 2005-2017 Fits Multiple Makes/Models, Position: Front & Rear
Part Number: 820-RRE-60008
Ships on 10/13/2026Lowest Price Guarantee$41165
GOODYEAR BELTS
1120910 Serpentine Belt, Select Kenworth; Peterbilt; International, K Profile, 12 Ribs, 91 in. Effective Length
Part Number: 498-1120910
$7316
Ships on 10/13/2026Lowest price guarantee
GOODYEAR BELTS
1120910 Serpentine Belt, Select Kenworth; Peterbilt; International, K Profile, 12 Ribs, 91 in. Effective Length
Part Number: 498-1120910
Ships on 10/13/2026Lowest Price Guarantee$7316
GOODYEAR BELTS
3287 Serpentine Belt Drive Component Kit Select Volvo; Freightliner; Kenworth; Peterbilt; International
Part Number: 498-3287
$24054
Ships on 10/15/2026Lowest price guarantee
GOODYEAR BELTS
3287 Serpentine Belt Drive Component Kit Select Volvo; Freightliner; Kenworth; Peterbilt; International
Part Number: 498-3287
Ships on 10/15/2026Lowest Price Guarantee$24054
HPS PERFORMANCE
CAC-3687223 EGR Hose, 4-Ply Aramid Reinforced Fluorolined Silicone, Replaces Stock Egr Hose.
Part Number: 589-CAC-3687223
$5417
Ships on 10/21/2026Lowest price guarantee
HPS PERFORMANCE
CAC-3687223 EGR Hose, 4-Ply Aramid Reinforced Fluorolined Silicone, Replaces Stock Egr Hose.
Part Number: 589-CAC-3687223
Ships on 10/21/2026Lowest Price Guarantee$5417
R1 CONCEPTS
E-Line Blank Brake Rotor, 2005-2017 Fits Multiple Makes/Models, Position: Front & Rear
Part Number: 820-ERE-60008
$36280
Ships on 10/13/2026Lowest price guarantee
R1 CONCEPTS
E-Line Blank Brake Rotor, 2005-2017 Fits Multiple Makes/Models, Position: Front & Rear
Part Number: 820-ERE-60008
Ships on 10/13/2026Lowest Price Guarantee$36280
GOODYEAR BELTS
55161 Automatic Drive Belt Tensioner Select Western Star; Volvo; Mack; Freightliner; Kenworth; Peterbilt; International
Part Number: 498-55161
$13417$213.79
YOU SAVE
$79.62Ships TomorrowLowest price guarantee
GOODYEAR BELTS
55161 Automatic Drive Belt Tensioner Select Western Star; Volvo; Mack; Freightliner; Kenworth; Peterbilt; International
Part Number: 498-55161
Ships TomorrowLowest Price Guarantee$13417 $213.79
YOU SAVE
$79.62
GOODYEAR BELTS
55827 Automatic Drive Belt Tensioner Fits Select Make/Models
Part Number: 498-55827
$14277$227.48
YOU SAVE
$84.71Ships TomorrowLowest price guarantee
GOODYEAR BELTS
55827 Automatic Drive Belt Tensioner Fits Select Make/Models
Part Number: 498-55827
Ships TomorrowLowest Price Guarantee$14277 $227.48
YOU SAVE
$84.71
GOODYEAR BELTS
58140 Belt Drive Idler/Tensioner Pulley Fits Select Make/Models
Part Number: 498-58140
$3307$52.65
YOU SAVE
$19.58Ships TomorrowLowest price guarantee
GOODYEAR BELTS
58140 Belt Drive Idler/Tensioner Pulley Fits Select Make/Models
Part Number: 498-58140
Ships TomorrowLowest Price Guarantee$3307 $52.65
YOU SAVE
$19.58
DYNAMIC FRICTION
600-60008 Brake Rotor, 2005-2017 Multiple Makes/Models, Position: Fr & Rr
Part Number: 328-600-60008
$33058
Ships on Oct 13, 2026Lowest price guarantee
DYNAMIC FRICTION
600-60008 Brake Rotor, 2005-2017 Multiple Makes/Models, Position: Fr & Rr
Part Number: 328-600-60008
Ships on Oct 13, 2026Lowest Price Guarantee$33058
DYNAMIC FRICTION
1214-1369-00 Heavy-Duty Semi-Metallic Brake Pads, 2005-2017 Multiple Makes/Models, Position: Fr & Rr
Part Number: 328-1214-1369-00
$18509
Ships on Oct 13, 2026Lowest price guarantee
DYNAMIC FRICTION
1214-1369-00 Heavy-Duty Semi-Metallic Brake Pads, 2005-2017 Multiple Makes/Models, Position: Fr & Rr
Part Number: 328-1214-1369-00
Ships on Oct 13, 2026Lowest Price Guarantee$18509
![Micro-V Serpentine Belt for 2003-2023 International, Kenworth and Peterbilt Models [12-Rib, 91.708 in. Outside Circumference]](https://www.jegs.com/images/mini_100/400/465/465-k120911.jpg)
GATES
Micro-V Serpentine Belt for 2003-2023 International, Kenworth and Peterbilt Models [12-Rib, 91.708 in. Outside Circumference]
Part Number: 465-K120911
$12148
Ships on Oct 13, 2026Lowest price guarantee![Micro-V Serpentine Belt for 2003-2023 International, Kenworth and Peterbilt Models [12-Rib, 91.708 in. Outside Circumference]](https://www.jegs.com/images/mini_200/400/465/465-k120911.jpg)
GATES
Micro-V Serpentine Belt for 2003-2023 International, Kenworth and Peterbilt Models [12-Rib, 91.708 in. Outside Circumference]
Part Number: 465-K120911
Ships on Oct 13, 2026Lowest Price Guarantee$12148
![FleetRunner Micro-V Serpentine Belt for 2013-2025 Freightliner, Kenworth and Peterbilt Models [8-Rib]](https://www.jegs.com/images/mini_100/400/465/465-k080808hd.jpg)
GATES
FleetRunner Micro-V Serpentine Belt for 2013-2025 Freightliner, Kenworth and Peterbilt Models [8-Rib]
Part Number: 465-K080808HD
$17211
Ships on Oct 13, 2026Lowest price guarantee![FleetRunner Micro-V Serpentine Belt for 2013-2025 Freightliner, Kenworth and Peterbilt Models [8-Rib]](https://www.jegs.com/images/mini_200/400/465/465-k080808hd.jpg)
GATES
FleetRunner Micro-V Serpentine Belt for 2013-2025 Freightliner, Kenworth and Peterbilt Models [8-Rib]
Part Number: 465-K080808HD
Ships on Oct 13, 2026Lowest Price Guarantee$17211
![DriveAlign Idler Pulley Fits Select Peterbilt, International and Other Makes [83.5 mm Pulley O.D., 6-Groove, Flanged]](https://www.jegs.com/images/mini_100/400/465/465-36223.jpg)
GATES
DriveAlign Idler Pulley Fits Select Peterbilt, International and Other Makes [83.5 mm Pulley O.D., 6-Groove, Flanged]
Part Number: 465-36223
$10382
Ships on 10/16/2026Lowest price guarantee![DriveAlign Idler Pulley Fits Select Peterbilt, International and Other Makes [83.5 mm Pulley O.D., 6-Groove, Flanged]](https://www.jegs.com/images/mini_200/400/465/465-36223.jpg)
GATES
DriveAlign Idler Pulley Fits Select Peterbilt, International and Other Makes [83.5 mm Pulley O.D., 6-Groove, Flanged]
Part Number: 465-36223
Ships on 10/16/2026Lowest Price Guarantee$10382
GATES
Complete Serpentine Belt Drive Component Kit for Select 2003-2023 Volvo, Peterbilt and Other Makes
Part Number: 465-90K-38610HDC
$26808
Ships on Oct 13, 2026Lowest price guarantee
GATES
Complete Serpentine Belt Drive Component Kit for Select 2003-2023 Volvo, Peterbilt and Other Makes
Part Number: 465-90K-38610HDC
Ships on Oct 13, 2026Lowest Price Guarantee$26808
![Molded Silicone Coolant Hose for 2008-2023 Kenworth and Peterbilt Models [2.500 in. I.D., 8.500 in. Centerline]](https://www.jegs.com/images/mini_100/400/465/465-28359.jpg)
GATES
Molded Silicone Coolant Hose for 2008-2023 Kenworth and Peterbilt Models [2.500 in. I.D., 8.500 in. Centerline]
Part Number: 465-28359
$17852
Ships on Oct 13, 2026Lowest price guarantee![Molded Silicone Coolant Hose for 2008-2023 Kenworth and Peterbilt Models [2.500 in. I.D., 8.500 in. Centerline]](https://www.jegs.com/images/mini_200/400/465/465-28359.jpg)
GATES
Molded Silicone Coolant Hose for 2008-2023 Kenworth and Peterbilt Models [2.500 in. I.D., 8.500 in. Centerline]
Part Number: 465-28359
Ships on Oct 13, 2026Lowest Price Guarantee$17852
GATES
Green Stripe DriveAlign Heavy Duty Belt Tensioner for 2013-2021 Kenworth and Peterbilt Models
Part Number: 465-38715
$32563
Ships on Oct 13, 2026Lowest price guarantee
GATES
Green Stripe DriveAlign Heavy Duty Belt Tensioner for 2013-2021 Kenworth and Peterbilt Models
Part Number: 465-38715
Ships on Oct 13, 2026Lowest Price Guarantee$32563
![Green Stripe DriveAlign Heavy Duty Belt Tensioner Fits Select International, Kenworth and Other Makes [76.3 mm Pulley O.D.]](https://www.jegs.com/images/mini_100/400/465/465-38587.jpg)
GATES
Green Stripe DriveAlign Heavy Duty Belt Tensioner Fits Select International, Kenworth and Other Makes [76.3 mm Pulley O.D.]
Part Number: 465-38587
$28315
Ships on Oct 13, 2026Lowest price guarantee![Green Stripe DriveAlign Heavy Duty Belt Tensioner Fits Select International, Kenworth and Other Makes [76.3 mm Pulley O.D.]](https://www.jegs.com/images/mini_200/400/465/465-38587.jpg)
GATES
Green Stripe DriveAlign Heavy Duty Belt Tensioner Fits Select International, Kenworth and Other Makes [76.3 mm Pulley O.D.]
Part Number: 465-38587
Ships on Oct 13, 2026Lowest Price Guarantee$28315
R1 CONCEPTS
E-Line Blank Brake Rotor, 2005-2017 Fits Multiple Makes/Models, Position: Front & Rear
Part Number: 820-ERE-60007
$36321
Ships on 10/13/2026Lowest price guarantee
R1 CONCEPTS
E-Line Blank Brake Rotor, 2005-2017 Fits Multiple Makes/Models, Position: Front & Rear
Part Number: 820-ERE-60007
Ships on 10/13/2026Lowest Price Guarantee$36321
FULL THROTTLE BATTERY
FT1100-31ST FT-Series AGM 12 V Battery, Group: 31, 1100 CCA, 110 AH, 3/8" Stud Terminal RHP
Part Number: 597-FT1100-31ST
$51596$573.99
YOU SAVE
$58.03Ships on 10/13/2026Lowest price guarantee
FULL THROTTLE BATTERY
FT1100-31ST FT-Series AGM 12 V Battery, Group: 31, 1100 CCA, 110 AH, 3/8" Stud Terminal RHP
Part Number: 597-FT1100-31ST
Ships on 10/13/2026Lowest Price Guarantee$51596 $573.99
YOU SAVE
$58.03
GOODYEAR BELTS
1060637 Serpentine Belt, Fits Select Makes/Models, K Profile, 6 Ribs, 63.7 in. Effective Length
Part Number: 498-1060637
$1877$29.99
YOU SAVE
$11.22Ships TomorrowLowest price guarantee
GOODYEAR BELTS
1060637 Serpentine Belt, Fits Select Makes/Models, K Profile, 6 Ribs, 63.7 in. Effective Length
Part Number: 498-1060637
Ships TomorrowLowest Price Guarantee$1877 $29.99
YOU SAVE
$11.22