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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Ceramic-Coated Exhaust Manifold Replaces 146-9445 For Kenworth & Peterbilt With Holeset Turbo
BULLY DOG
$2,264.89Exhaust Manifold Fits Kenworth And PeterbiltUpgrade a stock manifold on a Caterpillar engine with this premium, heavy duty Bully Dog ceramic coated exhaust manifold. It is one of the fastest flowing in the industry and provides a quick turbo spool with a...$2,264.89 -
Ceramic-Coated Exhaust Manifold Replaces 23519348 & 23511978 For Peterbilt & Kenworth
BULLY DOG
$1,975.00Exhaust Manifold Fits Kenworth And PeterbiltIf you are ready to upgrade an old stock manifold on a 1995-2003 Detroit 12.7L and 14.0L Series 60, Elite Truck Accessorieshas what you are looking for with this heavy duty Bully Dog Ceramic Coated Exhaust...$1,975.00 -
Bully Dog ECM Tuner Diesel Tuner
BULLY DOG
$849.00Bully Dog ECM Diesel TunerIf you are looking for a simple platform to load independently SAE tested tuning to your truck, Elite Truck Accessoriesoffers this high quality ECM Tuner by Bully Dog for Detroit and Mercedes engines. It is streamlined to...$849.00 -
Red Poly Radiator Mount Bushing Replaces 07-03286 For Peterbilt & Kenworth
ENERGY SUSPENSION
$26.31Single Poly Red Radiator Mount Fits Paccar * High Quality Radiator Mount Bushing * Made Of Polyurethane* Red Color* Contains 2 Bushing Halves And 1 Sleeve, Services 1 Position, 2 Needed Per Truck* Sold Set* Made In USA* Warranty On Support Radiator Mount...$26.31 -
FASS Fuel System Mounting Bracket - Eliminates Frame Drilling
FASS
$132.99FASS Fuel System Mounting Bracket * High Quality Bracket* Eliminates Frame Drilling* Fits Frame Heights From 10 Inch To 11.75 Inch* Designed To Fit Securely Around The Frame* Sold Individually* Made In USA* Warranty On Mounting Bracket Against Defects In...$132.99 -
Electric Diesel Fuel Heater Kit For FASS System Titanium Series
FASS
$202.99Titanium Series Optional Electric Diesel Fuel Heater KitUpgrade your FASS System for extreme cold with the Titanium Series Electric Heater Kits. These heaters prevent gelling, aid cold weather starts, and automatically shut off at the right temp. Get...$202.99 -
Lower Hood Pivot, Drivers Side For Peterbilt 377, 378, 379
AUTOMANN USA
$314.99Hood Pivot, Replaces 13-04708L, 1304702 * High Quality Hood Pivot* Consists Of - (1) Lower Hood Pivot- (1) Hood Pivot Bolt Lock Channel- (1) Hood Pivot Plate- (2) Hood Bushing- (1) Hood Pivot Bushing- (2) Fender Washer- (2) U Bolt Washer- (2) Shackle...$314.99 -
7H15 Direct Short Body AC Compressor W/ 126MM Clutch, 10 Grooves
AUTOMANN USA
$312.997H15 Direct Short Body AC Compressor W/ Clutch * High Quality AC Compressor * With Clutch * Compressor Type 7H15* Direct Short Body* Clutch Grooves PV10* Clutch DIA 126MM * 12 Volt* GQ Cylinder Head* Oil 300CC* Gauge Line 68.5MM* Sold Individually*...$312.99 -
York Style AC Compressor Without Clutch - Replaces ET210L-25150
BESTFIT TRUCK PARTS
$344.99AC Compressor With Tube-O Head & Keyed ShaftThe heavy duty 300-7170 York Style AC Compressor Without Clutch is designed to provide reliable and efficient performance for air conditioning systems. It has a displacement of 210 cc/rev and a maximum speed of...$344.99 -
AC Evaporator Replaces 052621, 1517003, SR2000044, NC1000, RD214850, 76R6850, ZGG708029, RD-2-1485-0P For Peterbilt 300 Series
BESTFIT TRUCK PARTS
$306.99AC Evaporator Fits Peterbilt 320, 357, 359, 362, 375, 377, 378 & 379 * High Quality AC Evaporator* Material: Copper, Brass, Aluminum * Dimensions: - Length: 13.125 Inch - Depth: 3.465 Inch - Height: 8.125 Inch - Fin Thickness: 0.004 Inch (0.115 Mm)-...$306.99 -
Power Steering Reservoir Base & Bracket For 575.1028 For Peterbilt 300 Series
AUTOMANN USA
$233.99Power Steering Reservoir Base & BracketSecurely mount your power steering reservoir with this quality base and bracket. For ease of use, it features pre-cut 0.687 inch mounting holes that are 3.125 inches apart. The base and bracket fits various...$233.99 -
2 Quart Power Steering Reservoir Replaces J86-6005For Peterbilt 300 Series
AUTOMANN USA
$221.99Power Steering Reservoir Fits Peterbilt 300 Series - Replaces J866005This quality 2 quart 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...$221.99