Order Status & Returns
Gift Cards
Help Center
1-800-345-4545
2004 Peterbilt 378 Parts
ADD A VEHICLE TO GUARANTEE PARTS FIT
See products that fit
GOODYEAR BELTS
1080730 Serpentine Belt, Select Sterling Truck; Freightliner; Peterbilt; International, 8 Ribs, 73 in. Effective Length
Part Number: 498-1080730
$6629
Ships Tomorrow
Lowest price guarantee
GOODYEAR BELTS
1080730 Serpentine Belt, Select Sterling Truck; Freightliner; Peterbilt; International, 8 Ribs, 73 in. Effective Length
Part Number: 498-1080730
Ships TomorrowLowest Price Guarantee$6629
GOODYEAR BELTS
55161 Automatic Drive Belt Tensioner Select Western Star; Volvo; Mack; Freightliner; Kenworth; Peterbilt; International
Part Number: 498-55161
$21379
Ships 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$21379
GOODYEAR BELTS
3287 Serpentine Belt Drive Component Kit Select Volvo; Freightliner; Kenworth; Peterbilt; International
Part Number: 498-3287
$32199
Ships on Sep 08, 2026Lowest price guarantee
GOODYEAR BELTS
3287 Serpentine Belt Drive Component Kit Select Volvo; Freightliner; Kenworth; Peterbilt; International
Part Number: 498-3287
Ships on Sep 08, 2026Lowest Price Guarantee$32199
GOODYEAR BELTS
1115 Coolant Straight Hose,2.5in. I.D, 36 in. Length Fits Select Make/Models
Part Number: 498-1115
$9786
Ships on Sep 08, 2026Lowest price guarantee
GOODYEAR BELTS
1115 Coolant Straight Hose,2.5in. I.D, 36 in. Length Fits Select Make/Models
Part Number: 498-1115
Ships on Sep 08, 2026Lowest Price Guarantee$9786
GOODYEAR BELTS
1120891 Serpentine Belt, 2004-2007 Peterbilt 378, 2005-2007 Peterbilt 379, K Profile, 12 Ribs, 89.1 in. Effective Length
Part Number: 498-1120891
$9486
Ships on Sep 04, 2026Lowest price guarantee
GOODYEAR BELTS
1120891 Serpentine Belt, 2004-2007 Peterbilt 378, 2005-2007 Peterbilt 379, K Profile, 12 Ribs, 89.1 in. Effective Length
Part Number: 498-1120891
Ships on Sep 04, 2026Lowest Price Guarantee$9486
JEGS
Fuel Water Separator Filter for 1980-2015 Chevy, Ford, Freightliner, GMC, International, Kenworth, Peterbilt Models
Part Number: 555-150620
$1299
Ships on Sep 04, 2026Lowest price guarantee
JEGS
Fuel Water Separator Filter for 1980-2015 Chevy, Ford, Freightliner, GMC, International, Kenworth, Peterbilt Models
Part Number: 555-150620
Ships on Sep 04, 2026Lowest Price Guarantee$1299
HPS PERFORMANCE
CAC-3687223 EGR Hose, 4-Ply Aramid Reinforced Fluorolined Silicone, Replaces Stock Egr Hose.
Part Number: 589-CAC-3687223
$5417
Ships on Sep 17, 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 Sep 17, 2026Lowest Price Guarantee$5417
