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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S480 Big Cat Turbo Borg Warner With 1.58 Non-Waste Gated Turbine Housing For C15, C16, 3406E CAT
AFTERMARKET
$3,264.99S480 Borg Warner Big CAT Turbo With 360 Degree Thrust Bearing For C15, C16 & 3406E Engines * High Quality Turbo* 1.58 Non Waste Gated Turbine Housing * Forged Milled Compressor Wheel * 360 Degree Thrust Bearing * Sold Individually* Warranty On Turbo...$3,264.99 -
Billet Steel One Piece CAT C15 Performance Exhaust Manifold
STEED SPEED
$1,999.99Performance Exhaust Manifold For Caterpillar C15 EnginesA beautifully crafted CNC billet steel masterpiece! Far superior performance than any other product. EGTs were 150 degrees lower than even the best aftermarket manifold while spooling the turbo...$1,999.99 -
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 -
Turbocharger For Cummins ISX Engines - Replaces 4043620
AFTERMARKET
$4,500.99Replacement 4043620 Turbocharger * High Quality Turbocharger* Replaces OE Number 4043620* Sold Individually* Warranty On Turbocharger Against Defects In Workmanship & Material From Date Of Purchase*** High Quality Aftermarket Replacement Part (Not OEM)...$4,500.99 -
Turbocharger For N14 Cummins Borg Warner 14.0L BHT3E
AFTERMARKET
$1,630.99Borg Warner 14L BHT3E Turbocharger For Cummins N14 * High Quality Turbocharger* Replaces OE Number 3531733, 3536095, 3536263, 3537074, 3803585, 3804308, 3804502, 3531267, 3592678, 3592512* Sold Individually* Warranty On Turbocharger Against Defects In...$1,630.99 -
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 -
Turbocharger For 3406E 475-550 HP CAT Equipped Trucks
AFTERMARKET
$2,192.99Turbocharger Fits 3406E 475-550 HP CAT Equipped Trucks * High Quality Turbocharger* Fits 3406E 475-550 Hp Cat Equipped Trucks * Borg Warner S410G* Sold Individually* Warranty On Turbocharger Against Defects In Workmanship & Material From Date Of...$2,192.99 -
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 -
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