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2000 Peterbilt 378 Parts
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![Micro-V Serpentine Belt for Select 1987-2019 International and Other Makes [6-Rib, 42.540 in. Outside Circumference]](https://www.jegs.com/images/mini_100/400/465/465-k060425.jpg)
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Micro-V Serpentine Belt for Select 1987-2019 International and Other Makes [6-Rib, 42.540 in. Outside Circumference]
Part Number: 465-K060425
$2835
Ships on Oct 13, 2026
Lowest price guarantee![Micro-V Serpentine Belt for Select 1987-2019 International and Other Makes [6-Rib, 42.540 in. Outside Circumference]](https://www.jegs.com/images/mini_200/400/465/465-k060425.jpg)
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Micro-V Serpentine Belt for Select 1987-2019 International and Other Makes [6-Rib, 42.540 in. Outside Circumference]
Part Number: 465-K060425
Ships on Oct 13, 2026Lowest Price Guarantee$2835
![Micro-V Serpentine Belt for Select 1989-2010 Freightliner and Other Makes [8-Rib, 74.660 in. Outside Circumference]](https://www.jegs.com/images/mini_100/400/465/465-k080740.jpg)
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Micro-V Serpentine Belt for Select 1989-2010 Freightliner and Other Makes [8-Rib, 74.660 in. Outside Circumference]
Part Number: 465-K080740
$9820
Ships on Oct 13, 2026Lowest price guarantee![Micro-V Serpentine Belt for Select 1989-2010 Freightliner and Other Makes [8-Rib, 74.660 in. Outside Circumference]](https://www.jegs.com/images/mini_200/400/465/465-k080740.jpg)
GATES
Micro-V Serpentine Belt for Select 1989-2010 Freightliner and Other Makes [8-Rib, 74.660 in. Outside Circumference]
Part Number: 465-K080740
Ships on Oct 13, 2026Lowest Price Guarantee$9820
![Heavy Duty Belt Tensioner for 1993-2005 Freightliner, IC Corporation, International and Peterbilt Models [75 mm Pulley O.D.]](https://www.jegs.com/images/mini_100/400/465/465-38514.jpg)
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Heavy Duty Belt Tensioner for 1993-2005 Freightliner, IC Corporation, International and Peterbilt Models [75 mm Pulley O.D.]
Part Number: 465-38514
$26428
Ships on Oct 13, 2026Lowest price guarantee![Heavy Duty Belt Tensioner for 1993-2005 Freightliner, IC Corporation, International and Peterbilt Models [75 mm Pulley O.D.]](https://www.jegs.com/images/mini_200/400/465/465-38514.jpg)
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Heavy Duty Belt Tensioner for 1993-2005 Freightliner, IC Corporation, International and Peterbilt Models [75 mm Pulley O.D.]
Part Number: 465-38514
Ships on Oct 13, 2026Lowest Price Guarantee$26428
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DriveAlign Idler Pulley for Select 1988-2012 International, Freightliner and Other Makes
Part Number: 465-36091
$7833
Ships on Oct 13, 2026Lowest price guarantee
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DriveAlign Idler Pulley for Select 1988-2012 International, Freightliner and Other Makes
Part Number: 465-36091
Ships on Oct 13, 2026Lowest Price Guarantee$7833
![DriveAlign Idler Pulley for Select 1992-2004 Ford, Kenworth and Other Makes [Smooth Pulley]](https://www.jegs.com/images/mini_100/400/465/465-36095.jpg)
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DriveAlign Idler Pulley for Select 1992-2004 Ford, Kenworth and Other Makes [Smooth Pulley]
Part Number: 465-36095
$11796
Ships on Oct 13, 2026Lowest price guarantee![DriveAlign Idler Pulley for Select 1992-2004 Ford, Kenworth and Other Makes [Smooth Pulley]](https://www.jegs.com/images/mini_200/400/465/465-36095.jpg)
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DriveAlign Idler Pulley for Select 1992-2004 Ford, Kenworth and Other Makes [Smooth Pulley]
Part Number: 465-36095
Ships on Oct 13, 2026Lowest Price Guarantee$11796
![Heavy-Duty Thermostat for Select 1965-2011 International, Ford and Other Makes [180 Degree F]](https://www.jegs.com/images/mini_100/400/465/465-33578.jpg)
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Heavy-Duty Thermostat for Select 1965-2011 International, Ford and Other Makes [180 Degree F]
Part Number: 465-33578
$10738
Ships on Oct 13, 2026Lowest price guarantee![Heavy-Duty Thermostat for Select 1965-2011 International, Ford and Other Makes [180 Degree F]](https://www.jegs.com/images/mini_200/400/465/465-33578.jpg)
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Heavy-Duty Thermostat for Select 1965-2011 International, Ford and Other Makes [180 Degree F]
Part Number: 465-33578
Ships on Oct 13, 2026Lowest Price Guarantee$10738
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Heavy-Duty Thermostat for Select 1965-2017 International, Ford and Other Makes
Part Number: 465-33579
$11864
Ships on Oct 13, 2026Lowest price guarantee
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Heavy-Duty Thermostat for Select 1965-2017 International, Ford and Other Makes
Part Number: 465-33579
Ships on Oct 13, 2026Lowest Price Guarantee$11864
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Heavy-Duty Water Pump for Select 1988-2018 Freightliner, Ford and Other Makes
Part Number: 465-46002HD
$62376
Ships on Oct 13, 2026Lowest price guarantee
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Heavy-Duty Water Pump for Select 1988-2018 Freightliner, Ford and Other Makes
Part Number: 465-46002HD
Ships on Oct 13, 2026Lowest Price Guarantee$62376
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Heavy-Duty Water Pump for Select 1994-2005 Sterling Truck, Freightliner and Other Makes
Part Number: 465-44060HD
$62379
Ships on Oct 13, 2026Lowest price guarantee
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Heavy-Duty Water Pump for Select 1994-2005 Sterling Truck, Freightliner and Other Makes
Part Number: 465-44060HD
Ships on Oct 13, 2026Lowest Price Guarantee$62379
![FleetRunner V-Belt for Select 1956-2010 Ford, Peterbilt and Other Makes [HC50 Section, 46.380 in. Outside Circumference]](https://www.jegs.com/images/mini_100/400/465/465-9463hd.jpg)
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FleetRunner V-Belt for Select 1956-2010 Ford, Peterbilt and Other Makes [HC50 Section, 46.380 in. Outside Circumference]
Part Number: 465-9463HD
$6200
Ships on Oct 13, 2026Lowest price guarantee![FleetRunner V-Belt for Select 1956-2010 Ford, Peterbilt and Other Makes [HC50 Section, 46.380 in. Outside Circumference]](https://www.jegs.com/images/mini_200/400/465/465-9463hd.jpg)
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FleetRunner V-Belt for Select 1956-2010 Ford, Peterbilt and Other Makes [HC50 Section, 46.380 in. Outside Circumference]
Part Number: 465-9463HD
Ships on Oct 13, 2026Lowest Price Guarantee$6200
![FleetRunner V-Belt for Select 1966-2022 Hino, Mack and Other Makes [HC50 Section, 41.910 in. Outside Circumference]](https://www.jegs.com/images/mini_100/400/465/465-9415hd.jpg)
GATES
FleetRunner V-Belt for Select 1966-2022 Hino, Mack and Other Makes [HC50 Section, 41.910 in. Outside Circumference]
Part Number: 465-9415HD
$5828
Ships on Oct 13, 2026Lowest price guarantee![FleetRunner V-Belt for Select 1966-2022 Hino, Mack and Other Makes [HC50 Section, 41.910 in. Outside Circumference]](https://www.jegs.com/images/mini_200/400/465/465-9415hd.jpg)
GATES
FleetRunner V-Belt for Select 1966-2022 Hino, Mack and Other Makes [HC50 Section, 41.910 in. Outside Circumference]
Part Number: 465-9415HD
Ships on Oct 13, 2026Lowest Price Guarantee$5828
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FleetRunner Heavy Duty V Belt for Select 1960-1987 Chevrolet, Dodge, Ford, Isuzu, Nissan
Part Number: 465-9590HD
$2866
Ships on Oct 13, 2026Lowest price guarantee
GATES
FleetRunner Heavy Duty V Belt for Select 1960-1987 Chevrolet, Dodge, Ford, Isuzu, Nissan
Part Number: 465-9590HD
Ships on Oct 13, 2026Lowest Price Guarantee$2866
![FleetRunner Micro-V Serpentine Belt for Select 1988-2023 Kenworth and Other Makes [6-Rib, 69.125 in. Outside Circumference]](https://www.jegs.com/images/mini_100/400/465/465-k060685hd.jpg)
GATES
FleetRunner Micro-V Serpentine Belt for Select 1988-2023 Kenworth and Other Makes [6-Rib, 69.125 in. Outside Circumference]
Part Number: 465-K060685HD
$4041
Ships on 10/16/2026Lowest price guarantee![FleetRunner Micro-V Serpentine Belt for Select 1988-2023 Kenworth and Other Makes [6-Rib, 69.125 in. Outside Circumference]](https://www.jegs.com/images/mini_200/400/465/465-k060685hd.jpg)
GATES
FleetRunner Micro-V Serpentine Belt for Select 1988-2023 Kenworth and Other Makes [6-Rib, 69.125 in. Outside Circumference]
Part Number: 465-K060685HD
Ships on 10/16/2026Lowest Price Guarantee$4041
