Peterbilt 357/378 Parts
Find the best Peterbilt 378 aftermarket parts in the business here at 4 State. The Peterbilt 378 semi truck represents all of the characteristics of the Peterbilt brand, and was a popular model with similar features to the Peterbilt 379. Pete truck models are a brand of choice for experienced truckers who need dependable semi trucks. 4 State Trucks has all the semi truck parts and accessories you need to make your Pete 378 stand out to showcase your unique personality. Whether you need aftermarket bumpers, exhaust, or fuel tanks, we've got you covered. Hit the open road in style and comfort with the best custom gear for your Peterbilt heavy duty truck or 18 wheeler.
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Power Steering Reservoir Replaces J86-6001 For Peterbilt 300 Series
AUTOMANN USA
$223.99Power Steering Reservoir Fits Peterbilt 300 SeriesThis quality aftermarket power steering reservoir is built to endure the effects of stress generated by the engine compartment. It is made of a heavy duty plastic and fits various Peterbilt models. * High...$223.99 -
Stainless Steel Bolt Kit For Exhaust Mount Grommets For Peterbilt
AFTERMARKET
$36.99Stainless Steel Bolt Kit With Hex Head Bolts, Hex Nuts, Grommets, Flat And Lock WashersGetting ready to secure your exhaust stack clamps to the cab brackets on your Peterbilt truck? Elite Truck Accessoriesoffers this high-quality fasteners kit to mount...$36.99 -
Stainless Steel Bolt Kit For Exhaust Cab Brackets For Peterbilts
AFTERMARKET
$19.99Stainless Steel Bolt Kit With Hex Head Bolts, Flat And Lock WashersGetting ready to bolt your exhaust down to the cab of your Peterbilt truck? Elite Truck Accessoriesoffers this high-quality fasteners kit that contains parts to mount 2 exhaust cab...$19.99 -
14 Inch Stainless Steel Drop Visor For Peterbilt 377, 378 & 379 W/ Door-Mounted Mirrors
TRUX ACCESSORIES
$259.9914 Inch Gangster Style Drop Visor Fits UltraCabsAdd some shade to your cab with this quality 14-inch Gangster Drop Visor. It is made of shiny stainless steel that is easy to maintain and will look great for years to come. The visor fits 1998 through 2004...$259.99 -
Stainless Steel Headlight-Mount Fender Shields W/ Peterbilt Logo For Peterbilt 378 & 379
OPP - ORIGINAL PARTS PROGRAM
$236.99Headlight-Mount Fender Shields W/ Peterbilt Logo Fits PeterbiltGive your Peterbilt 379 fender an updated look with these sleek stainless steel shields for dual square headlights. They will help protect your fender and paint from debris while looking...$236.99 -
Stainless Steel Fender Shields W/ Peterbilt Logo For Peterbilt 378 & 379
OPP - ORIGINAL PARTS PROGRAM
$259.99Fender Shields W/ Peterbilt Logo Fits PeterbiltProtect your fenders with this pair of quality stainless steel shields. They mount to the fender just under each headlight to add further protection against debris that causes chips and scratches in the...$259.99 -
CSM Smooth Aluminum Cab Flooring For Peterbilt378, 379, 385, 386, 388, 389
CHROME SHOP MAFIA
$635.99Smooth Aluminum Floor By Chrome Shop MafiaChange the look of the interior of your Peterbilt cab with smooth aluminum flooring by Chrome Shop Mafia. Aluminum floors are a great option if you are looking to paint your floors to match your truck theme *...$635.99 -
CSM Diamond Plate Aluminum Battery Box, 31 X 30 X 15 Inch For Peterbilt 359, 377, 378, 379
CHROME SHOP MAFIA
$706.99Aluminum Battery Step Box With 2 Rubber Latches By Chrome Shop MafiaThe Chrome Shop Mafia Battery Box is a high-quality, reliable solution for fitting your Peterbilt truck with a battery step box. Made of durable aluminum and with a diamond plate front...$706.99 -
Air Drier - Replaces Bendix AD-IS 801266BXW
AUTOMANN USA
$229.99Replacement Air Drier * High Quality Air Dryer* Includes - (1) D2A Type Governor- (1) ST4 Type Safety Valve - (1) ADIS/ADIP Type Purge Valve - (1) ADSP ADIS Wabco Type Catridge Kit- (1) Heater/Thermostat Kit * AD-IS Type* Primary Port 1/4in NPT, Opening...$229.99 -
Mechanical Fuel Pressure Gauge 5-100 PSI
ISSPRO
$65.27100 PSI Mechanical Fuel Pressure GaugeFind aftermarket Isspro mechanical fuel pressure gauges with a range of 5-100 PSI for your big rig at 4 State Trucks. This gauge has a black face with white numbers, fits in a 2-1/16 inch hole, and comes with a...$65.27 -
Add On Door Side Arm Rest W/ Black Vinyl Padding
GRAND GENERAL
$12.51Black Vinyl Padded Armrest With Aluminum Plate For MountingImprove your driving comfort with this specially designed add-on door armrest! Enjoy around 2 inches of thick, heavy-duty padding for extra support on those long-haul journeys. * High Quality...$12.51 -
Shift Boot Ring For PACCAR T680, T880, 330, 335, 378, 379, 386, 387, 389, 567, 579, 587
BESTFIT TRUCK PARTS
$26.51Shifter Boot Retainer Fits Peterbilt & Kenworth * High Quality Shifter Boot Retainer* Color Silver* Made Of Aluminum Mix* Dimensions- 6.59 Inch Length- 5.59 Inch Width- 0.125 Inch Thickness- 0.240 Inch Hole Size* Sold Individually* Warranty On Shifter...$26.51