Order Status & Returns
Gift Cards
Help Center
1-800-345-4545
1997 Peterbilt 378 Parts
ADD A VEHICLE TO GUARANTEE PARTS FIT
See products that fit
![Micro-V Serpentine Belt for Select 1984-2011 Freightliner and Other Makes [8-Rib, 51.052 in. Outside Circumference]](https://www.jegs.com/images/mini_100/400/465/465-k080505.jpg)
GATES
Micro-V Serpentine Belt for Select 1984-2011 Freightliner and Other Makes [8-Rib, 51.052 in. Outside Circumference]
Part Number: 465-K080505
$3974$99.99
YOU SAVE
$60.25
Ships Tomorrow
Lowest price guarantee![Micro-V Serpentine Belt for Select 1984-2011 Freightliner and Other Makes [8-Rib, 51.052 in. Outside Circumference]](https://www.jegs.com/images/mini_200/400/465/465-k080505.jpg)
GATES
Micro-V Serpentine Belt for Select 1984-2011 Freightliner and Other Makes [8-Rib, 51.052 in. Outside Circumference]
Part Number: 465-K080505
Ships TomorrowLowest Price Guarantee$3974 $99.99
YOU SAVE
$60.25
![Micro-V Serpentine Belt Fits Select BMW, Ford and Other Makes [5-Rib, 34.120 in. Outside Circumference]](https://www.jegs.com/images/mini_100/400/465/465-k050340.jpg)
GATES
Micro-V Serpentine Belt Fits Select BMW, Ford and Other Makes [5-Rib, 34.120 in. Outside Circumference]
Part Number: 465-K050340
$3517
Ships on Oct 13, 2026Lowest price guarantee![Micro-V Serpentine Belt Fits Select BMW, Ford and Other Makes [5-Rib, 34.120 in. Outside Circumference]](https://www.jegs.com/images/mini_200/400/465/465-k050340.jpg)
GATES
Micro-V Serpentine Belt Fits Select BMW, Ford and Other Makes [5-Rib, 34.120 in. Outside Circumference]
Part Number: 465-K050340
Ships on Oct 13, 2026Lowest Price Guarantee$3517
![Heavy Duty Truck V-Belt for Select 1981-2004 Hino, Peterbilt and Other Makes [RA Section, 55.910 in. Outside Circumference]](https://www.jegs.com/images/mini_100/400/465/465-tr22553.jpg)
GATES
Heavy Duty Truck V-Belt for Select 1981-2004 Hino, Peterbilt and Other Makes [RA Section, 55.910 in. Outside Circumference]
Part Number: 465-TR22553
$6743
Ships on Oct 13, 2026Lowest price guarantee![Heavy Duty Truck V-Belt for Select 1981-2004 Hino, Peterbilt and Other Makes [RA Section, 55.910 in. Outside Circumference]](https://www.jegs.com/images/mini_200/400/465/465-tr22553.jpg)
GATES
Heavy Duty Truck V-Belt for Select 1981-2004 Hino, Peterbilt and Other Makes [RA Section, 55.910 in. Outside Circumference]
Part Number: 465-TR22553
Ships on Oct 13, 2026Lowest Price Guarantee$6743
![Heavy Duty Truck V-Belt for Select 1970-1999 International, Ford and Other Makes [RA Section, 52.500 in. Outside Circumference]](https://www.jegs.com/images/mini_100/400/465/465-tr22517.jpg)
GATES
Heavy Duty Truck V-Belt for Select 1970-1999 International, Ford and Other Makes [RA Section, 52.500 in. Outside Circumference]
Part Number: 465-TR22517
$7162
Ships on Oct 13, 2026Lowest price guarantee![Heavy Duty Truck V-Belt for Select 1970-1999 International, Ford and Other Makes [RA Section, 52.500 in. Outside Circumference]](https://www.jegs.com/images/mini_200/400/465/465-tr22517.jpg)
GATES
Heavy Duty Truck V-Belt for Select 1970-1999 International, Ford and Other Makes [RA Section, 52.500 in. Outside Circumference]
Part Number: 465-TR22517
Ships on Oct 13, 2026Lowest Price Guarantee$7162
GATES
Heavy-Duty Water Pump for Select 1988-2007 International, Ford and Other Makes
Part Number: 465-43307HD
$48143
Ships on Oct 13, 2026Lowest price guarantee
GATES
Heavy-Duty Water Pump for Select 1988-2007 International, Ford and Other Makes
Part Number: 465-43307HD
Ships on Oct 13, 2026Lowest Price Guarantee$48143
![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)
GATES
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)
GATES
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
GATES
Heavy-Duty Thermostat for Select 1965-2017 International, Ford and Other Makes
Part Number: 465-33579
$11864
Ships on Oct 13, 2026Lowest price guarantee
GATES
Heavy-Duty Thermostat for Select 1965-2017 International, Ford and Other Makes
Part Number: 465-33579
Ships on Oct 13, 2026Lowest Price Guarantee$11864
GATES
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
GATES
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
![FleetRunner V-Belt for Select 1965-2002 Ford, International and Other Makes [HC50 Section, 49.380 in. Outside Circumference]](https://www.jegs.com/images/mini_100/400/465/465-9490hd.jpg)
GATES
FleetRunner V-Belt for Select 1965-2002 Ford, International and Other Makes [HC50 Section, 49.380 in. Outside Circumference]
Part Number: 465-9490HD
$5550
Ships on Oct 13, 2026Lowest price guarantee![FleetRunner V-Belt for Select 1965-2002 Ford, International and Other Makes [HC50 Section, 49.380 in. Outside Circumference]](https://www.jegs.com/images/mini_200/400/465/465-9490hd.jpg)
GATES
FleetRunner V-Belt for Select 1965-2002 Ford, International and Other Makes [HC50 Section, 49.380 in. Outside Circumference]
Part Number: 465-9490HD
Ships on Oct 13, 2026Lowest Price Guarantee$5550
GATES
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
GATES
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 1965-2001 Ford, Jeep and Other Makes [HC50 Section, 54.390 in. Outside Circumference]](https://www.jegs.com/images/mini_100/400/465/465-9540hd.jpg)
GATES
FleetRunner V-Belt for Select 1965-2001 Ford, Jeep and Other Makes [HC50 Section, 54.390 in. Outside Circumference]
Part Number: 465-9540HD
$6753
Ships on Oct 13, 2026Lowest price guarantee![FleetRunner V-Belt for Select 1965-2001 Ford, Jeep and Other Makes [HC50 Section, 54.390 in. Outside Circumference]](https://www.jegs.com/images/mini_200/400/465/465-9540hd.jpg)
GATES
FleetRunner V-Belt for Select 1965-2001 Ford, Jeep and Other Makes [HC50 Section, 54.390 in. Outside Circumference]
Part Number: 465-9540HD
Ships on Oct 13, 2026Lowest Price Guarantee$6753
![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)
GATES
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)
GATES
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
GATES
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 1993-2003 International and Other Makes [6-Rib, 41.500 in. Outside Circumference]](https://www.jegs.com/images/mini_100/400/465/465-k060415hd.jpg)
GATES
FleetRunner Micro-V Serpentine Belt for Select 1993-2003 International and Other Makes [6-Rib, 41.500 in. Outside Circumference]
Part Number: 465-K060415HD
$3729
Ships on 10/16/2026Lowest price guarantee![FleetRunner Micro-V Serpentine Belt for Select 1993-2003 International and Other Makes [6-Rib, 41.500 in. Outside Circumference]](https://www.jegs.com/images/mini_200/400/465/465-k060415hd.jpg)
GATES
FleetRunner Micro-V Serpentine Belt for Select 1993-2003 International and Other Makes [6-Rib, 41.500 in. Outside Circumference]
Part Number: 465-K060415HD
Ships on 10/16/2026Lowest Price Guarantee$3729
![Heavy-Duty Thermostat for Select 1981-2000 Ford, Peterbilt and Other Makes [175 Degree F]](https://www.jegs.com/images/mini_100/400/465/465-33549.jpg)
GATES
Heavy-Duty Thermostat for Select 1981-2000 Ford, Peterbilt and Other Makes [175 Degree F]
Part Number: 465-33549
$12284
Ships on 10/16/2026Lowest price guarantee![Heavy-Duty Thermostat for Select 1981-2000 Ford, Peterbilt and Other Makes [175 Degree F]](https://www.jegs.com/images/mini_200/400/465/465-33549.jpg)
GATES
Heavy-Duty Thermostat for Select 1981-2000 Ford, Peterbilt and Other Makes [175 Degree F]
Part Number: 465-33549
Ships on 10/16/2026Lowest Price Guarantee$12284