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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FASS 250 GPH Industrial Series Diesel Fuel Pump System
FASS
$872.99FASS IND 250G Diesel Fuel Pump System * High Quality Fuel System* IND250G Series FASS* Featuring:- Revolutionary Whisper Technology- 250 Gallons Per Minute At 16-18 PSI* Recommended For 600 - 900 HP* Return Hooks Up To Factory Return Line. No Extra Lines...$872.99 -
FASS 165 GPH Industrial Series Diesel Fuel Pump System
FASS
$960.99FASS IND 165G Diesel Fuel Pump System * High Quality Fuel System* Ind165G Series FASS* Featuring:- Revolutionary Whisper Technology- 165 Gallons Per Minute At 16-18 PSI* Recommended For 400 - 590 HP* Return Hooks Up To Factory Return Line. No Extra Lines...$960.99 -
Screw-On Metal/Rubber Exhaust Brake Actuator, Brake Solenoid Flange - Replaces 3871707
DAYTON / DORMAN
$129.99Metal/Rubber Exhaust Brake Actuator & Brake Solenoid Flange * High Quality Exhaust Brake Actuator/ Brake Solenoid* Flange Material: Metal, Rubber* Housing Color: Silver* Mount Type: Screw On* Mounting Hardware Included: No* Package Contents: 1 Brake...$129.99 -
Bully Dog Big Rig Turbocharger For Detroit Series 60 DDEC 4 12.7L, 14.0L Engines 1993-2003
BULLY DOG
$1,215.00Bully Dog 56900 Detroit Series 60 Big Rig Turbo * High Quality Turbocharger* Improves Performance And Reliability * Made To Create Reliable And Consistent Boost * Reduces Emissions And Enhances Fuel Economy* Faster Spool At Lower Engine Speeds * Ultra...$1,215.00 -
Bully Dog 6 Pin Diagnostic Plug
BULLY DOG
$63.49Replacement Diagnostic Plug For Bully Dog Devices * High Quality Diagnostic Plug * 6 Pin* Helps Maintain Compatibility With Bully Dog Devices * Sold Individually* Warranty On Diagnostic Plug Against Defects In Workmanship & Material From Date Of...$63.49 -
DPF Differential Pressure Sensor, Replaces 2871960, 4984187
DAYTON / DORMAN
$94.68DPF Differential Pressure Sensor * High Quality Differential Pressure Sensor* Male Gender* 10 PSI Maximum Pressure* 1 DPF Pressure Sensor Package Contents* 2 Port Quantity* Rectangle Shape* 4 Blade Terminals* Sold Individually* Warranty On Differential...$94.68 -
3 Ply Coolant Hose, 1.50 Inch ID X 12 Feet Long
FLEXFAB
$253.99Heavy Duty Silicone Rubber Blue Coolant Hose * High Quality Coolant Hose * Silicone* 1 1/2 Inch ID* 12 Foot* With 3 Plies Of Polyester Reinforcement* Meets SAE L20* Temperature Range -65 Degree To 300 Degree Fahrenheit* Made In USA* Sold Individually *...$253.99 -
32 Inch Engine Fan Blade W/ 11 Blades - Replaces 4735-44003-12
OPP - ORIGINAL PARTS PROGRAM
$298.99Engine Cooling 32 Inch Fan Blade With 2.56 Inch Pilot HoleThis Engine Fan Blade with 11 blades is a reliable choice for your engine cooling needs and replaces the factory part. It measures 32 inches in diameter and has a 2.56 inch Pilot hole. It features...$298.99 -
Borg Warner Turbocharger For Detroit 12.7 60 Series Engine
AFTERMARKET
$1,047.99Turbocharger Fits 12.7L 60 Series Detroit Engine * High Quality Turbocharger* Replaces OE Number 23518588, 23518597, 466713-5, 466713-6* Sold Individually* Warranty On Turbocharger Against Defects In Workmanship & Material From Date Of Purchase*** High...$1,047.99 -
ECM Tuner For Cummins ISX, ISL, ISM & ISC Engines
BULLY DOG
$849.95Bully Dog ECM Tuner Fits Cummins ISX, ISM, ISL & ISCIf 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 Cummins ISX, ISM ISL, and ISC...$849.95 -
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