Order Status & Returns
Gift Cards
Help Center
1-800-345-4545
2021 Peterbilt 520 Parts
ADD A VEHICLE TO GUARANTEE PARTS FIT
See products that fit
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
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
![FleetRunner Micro-V Serpentine Belt for Select 2007-2023 Toyota and Other Makes [8-Rib, 95.375 in. Outside Circumference]](https://www.jegs.com/images/mini_100/400/465/465-k080948hd.jpg)
GATES
FleetRunner Micro-V Serpentine Belt for Select 2007-2023 Toyota and Other Makes [8-Rib, 95.375 in. Outside Circumference]
Part Number: 465-K080948HD
$8977$132.99
YOU SAVE
$43.22Ships TomorrowLowest price guarantee![FleetRunner Micro-V Serpentine Belt for Select 2007-2023 Toyota and Other Makes [8-Rib, 95.375 in. Outside Circumference]](https://www.jegs.com/images/mini_200/400/465/465-k080948hd.jpg)
GATES
FleetRunner Micro-V Serpentine Belt for Select 2007-2023 Toyota and Other Makes [8-Rib, 95.375 in. Outside Circumference]
Part Number: 465-K080948HD
Ships TomorrowLowest Price Guarantee$8977 $132.99
YOU SAVE
$43.22
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 AT Serpentine Belt for Select 2007-2023 Toyota, Peterbilt and Other Makes [8-Rib, 95.375 in. Outside Circumference]](https://www.jegs.com/images/mini_100/400/465/465-k080948.jpg)
GATES
Micro-V AT Serpentine Belt for Select 2007-2023 Toyota, Peterbilt and Other Makes [8-Rib, 95.375 in. Outside Circumference]
Part Number: 465-K080948
$9819
Ships on 10/16/2026Lowest price guarantee![Micro-V AT Serpentine Belt for Select 2007-2023 Toyota, Peterbilt and Other Makes [8-Rib, 95.375 in. Outside Circumference]](https://www.jegs.com/images/mini_200/400/465/465-k080948.jpg)
GATES
Micro-V AT Serpentine Belt for Select 2007-2023 Toyota, Peterbilt and Other Makes [8-Rib, 95.375 in. Outside Circumference]
Part Number: 465-K080948
Ships on 10/16/2026Lowest Price Guarantee$9819
![FleetRunner Micro-V Serpentine Belt Fits Select Sterling Truck and Other Makes [8-Rib, 77.046 in. Outside Circumference]](https://www.jegs.com/images/mini_100/400/465/465-k080765hd.jpg)
GATES
FleetRunner Micro-V Serpentine Belt Fits Select Sterling Truck and Other Makes [8-Rib, 77.046 in. Outside Circumference]
Part Number: 465-K080765HD
$12149
Ships on Oct 13, 2026Lowest price guarantee![FleetRunner Micro-V Serpentine Belt Fits Select Sterling Truck and Other Makes [8-Rib, 77.046 in. Outside Circumference]](https://www.jegs.com/images/mini_200/400/465/465-k080765hd.jpg)
GATES
FleetRunner Micro-V Serpentine Belt Fits Select Sterling Truck and Other Makes [8-Rib, 77.046 in. Outside Circumference]
Part Number: 465-K080765HD
Ships on Oct 13, 2026Lowest Price Guarantee$12149
![Micro-V Serpentine Belt for 1981-2023 GMC, International and Peterbilt Models [10-Rib, 57.553 in. Outside Circumference]](https://www.jegs.com/images/mini_100/400/465/465-k100570.jpg)
GATES
Micro-V Serpentine Belt for 1981-2023 GMC, International and Peterbilt Models [10-Rib, 57.553 in. Outside Circumference]
Part Number: 465-K100570
$16062
Ships on Oct 13, 2026Lowest price guarantee![Micro-V Serpentine Belt for 1981-2023 GMC, International and Peterbilt Models [10-Rib, 57.553 in. Outside Circumference]](https://www.jegs.com/images/mini_200/400/465/465-k100570.jpg)
GATES
Micro-V Serpentine Belt for 1981-2023 GMC, International and Peterbilt Models [10-Rib, 57.553 in. Outside Circumference]
Part Number: 465-K100570
Ships on Oct 13, 2026Lowest Price Guarantee$16062
![Micro-V Serpentine Belt Fits Select Sterling Truck, International and Other Makes [8-Rib, 77.046 in. Outside Circumference]](https://www.jegs.com/images/mini_100/400/465/465-k080765.jpg)
GATES
Micro-V Serpentine Belt Fits Select Sterling Truck, International and Other Makes [8-Rib, 77.046 in. Outside Circumference]
Part Number: 465-K080765
$5907
Ships on Oct 13, 2026Lowest price guarantee![Micro-V Serpentine Belt Fits Select Sterling Truck, International and Other Makes [8-Rib, 77.046 in. Outside Circumference]](https://www.jegs.com/images/mini_200/400/465/465-k080765.jpg)
GATES
Micro-V Serpentine Belt Fits Select Sterling Truck, International and Other Makes [8-Rib, 77.046 in. Outside Circumference]
Part Number: 465-K080765
Ships on Oct 13, 2026Lowest Price Guarantee$5907
![45 Degree Silicone Coolant Hose Elbow [2.500 in. I.D., 6 x 6 in. Arms]](https://www.jegs.com/images/mini_100/400/465/465-28200.jpg)
![45 Degree Silicone Coolant Hose Elbow [2.500 in. I.D., 6 x 6 in. Arms]](https://www.jegs.com/images/mini_200/400/465/465-28200.jpg)
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
![Ring-Retained Turbocharger Hose [4 in. I.D., 6 in. Length]](https://www.jegs.com/images/mini_100/400/465/465-26203.jpg)
![Ring-Retained Turbocharger Hose [4 in. I.D., 6 in. Length]](https://www.jegs.com/images/mini_200/400/465/465-26203.jpg)
![Heavy-Duty Thermostat Fits Select Freightliner, Kenworth and Other Makes [180 Degree F]](https://www.jegs.com/images/mini_100/400/465/465-34308.jpg)
GATES
Heavy-Duty Thermostat Fits Select Freightliner, Kenworth and Other Makes [180 Degree F]
Part Number: 465-34308
$6936
Ships on Oct 13, 2026Lowest price guarantee![Heavy-Duty Thermostat Fits Select Freightliner, Kenworth and Other Makes [180 Degree F]](https://www.jegs.com/images/mini_200/400/465/465-34308.jpg)
GATES
Heavy-Duty Thermostat Fits Select Freightliner, Kenworth and Other Makes [180 Degree F]
Part Number: 465-34308
Ships on Oct 13, 2026Lowest Price Guarantee$6936
![DriveAlign Idler Pulley Fits Select Freightliner, Peterbilt and Other Makes [86.5 mm Pulley O.D., Smooth Pulley]](https://www.jegs.com/images/mini_100/400/465/465-36096.jpg)
GATES
DriveAlign Idler Pulley Fits Select Freightliner, Peterbilt and Other Makes [86.5 mm Pulley O.D., Smooth Pulley]
Part Number: 465-36096
$14794
Ships on Oct 13, 2026Lowest price guarantee![DriveAlign Idler Pulley Fits Select Freightliner, Peterbilt and Other Makes [86.5 mm Pulley O.D., Smooth Pulley]](https://www.jegs.com/images/mini_200/400/465/465-36096.jpg)
GATES
DriveAlign Idler Pulley Fits Select Freightliner, Peterbilt and Other Makes [86.5 mm Pulley O.D., Smooth Pulley]
Part Number: 465-36096
Ships on Oct 13, 2026Lowest Price Guarantee$14794
![Green Stripe DriveAlign Heavy Duty Belt Tensioner for Select Freightliner and Other Makes [76.8 mm Pulley O.D., 8-Groove]](https://www.jegs.com/images/mini_100/400/465/465-38627.jpg)
GATES
Green Stripe DriveAlign Heavy Duty Belt Tensioner for Select Freightliner and Other Makes [76.8 mm Pulley O.D., 8-Groove]
Part Number: 465-38627
$17580
Ships on Oct 13, 2026Lowest price guarantee![Green Stripe DriveAlign Heavy Duty Belt Tensioner for Select Freightliner and Other Makes [76.8 mm Pulley O.D., 8-Groove]](https://www.jegs.com/images/mini_200/400/465/465-38627.jpg)
GATES
Green Stripe DriveAlign Heavy Duty Belt Tensioner for Select Freightliner and Other Makes [76.8 mm Pulley O.D., 8-Groove]
Part Number: 465-38627
Ships on Oct 13, 2026Lowest Price Guarantee$17580
DYNAMIC FRICTION
600-60007 Brake Rotor, 2005-2017 Multiple Makes/Models, Position: Fr & Rr
Part Number: 328-600-60007
$33100
Ships on Oct 13, 2026Lowest price guarantee
DYNAMIC FRICTION
600-60007 Brake Rotor, 2005-2017 Multiple Makes/Models, Position: Fr & Rr
Part Number: 328-600-60007
Ships on Oct 13, 2026Lowest Price Guarantee$33100
![604-60008 GEOSPEC Rotor [Coated], 2005-2017 Multiple Makes/Models, Position: Fr & Rr](https://www.jegs.com/images/mini_100/300/328/328-604-60008.jpg)
DYNAMIC FRICTION
604-60008 GEOSPEC Rotor [Coated], 2005-2017 Multiple Makes/Models, Position: Fr & Rr
Part Number: 328-604-60008
$39297
Ships on Oct 13, 2026Lowest price guarantee![604-60008 GEOSPEC Rotor [Coated], 2005-2017 Multiple Makes/Models, Position: Fr & Rr](https://www.jegs.com/images/mini_200/300/328/328-604-60008.jpg)
DYNAMIC FRICTION
604-60008 GEOSPEC Rotor [Coated], 2005-2017 Multiple Makes/Models, Position: Fr & Rr
Part Number: 328-604-60008
Ships on Oct 13, 2026Lowest Price Guarantee$39297
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
1080765 Serpentine Belt, Fits Select Makes/Models, K Profile, 8 Ribs, 76.5 in. Effective Length
Part Number: 498-1080765
$3859
Ships on 10/13/2026Lowest price guarantee
GOODYEAR BELTS
1080765 Serpentine Belt, Fits Select Makes/Models, K Profile, 8 Ribs, 76.5 in. Effective Length
Part Number: 498-1080765
Ships on 10/13/2026Lowest Price Guarantee$3859