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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Rockwood Stainless Steel Switch Cover Full Locking Differential For Peterbilt
ROCKWOOD
$18.99SS Horizontal Switch Cover W/ Full Locking Differential EngravingsThis Rockwood cover fits over the horizontal full locking differential rocker switch on your dash. It fits various Peterbilt trucks with the new style of dash. The cover is made of...$18.99 -
Rockwood Stainless Steel Door Cover With Screw A/C Heater Filter For Peterbilt
ROCKWOOD
$42.99SS Door Filter Cover W/ EngravingsProtect and label your Peterbilt AC/Heater filter with this high quality door cover. It is made of stainless steel and engraved with an easy to read font. Rockwood takes pride in crafting all their products in the USA...$42.99 -
Chrome Headlight Turn Signal Cover Set For Triangular Turn Signal For Peterbilt 359, 378, 379, 388, 389
UNITED PACIFIC
$21.51Peterbilt Headlight Turn Signal Chrome Cover Set * High Quality Headlight Turn Signal Cover* Made Of Chrome Plated Plastic* Fits Trucks With Triangular Turn Signal* Sold Individually* Warranty On Headlight Turn Signal Cover Against Defects In Workmanship...$21.51 -
Chrome Above Door Trim For Peterbilt
UNITED PACIFIC
$55.49Above Door Trim Fits PeterbiltThese door trims, crafted from chrome-plated plastic, serve as replacements for the gray plastic trims above the door. Sold as a pair, they fit both the driver and passenger sides, offering a sleek upgrade. * Door Trims*...$55.49 -
Chrome Lower Window Trim For Peterbilt
UNITED PACIFIC
$39.47Interior Lower View Window Trim Fits PeterbiltCrafted from chrome-plated plastic, this Window Trim offers a stylish accent to your vehicle's exterior. Sold individually, this aftermarket replacement part provides a cost-effective solution for enhancing...$39.47 -
Aluminum L Shape Headlight Bracket Arm For Peterbilt 379
UNITED PACIFIC
$226.99Polished Aluminum Headlight Bracket Arms W/ Pre-Drilled Wiring PassagesThe Headlight Bracket Arms are constructed from polished aluminum and feature an L-shaped design. They include internal pre-drilled passages for routing headlight wiring through...$226.99 -
On Sale
BESTfit 50 Gallon Aluminum Round Hydraulic Tank Kit With Filler Breather Cap, Strainer
BESTFIT TRUCK PARTS
Now: $594.99Was: $699.99BESTfit 25 Inch Diameter Hydraulic Tank Kit With Vent On Top, Sight Level Gauge, Temperature IndicatorSimplify your hydraulic system upgrade with our Effortless Hydraulic Tank Kit. This aftermarket replacement part, not OEM, comprises a Filler Breather...Now: $594.99Was: $699.99 -
BESTfit 3 Inch To 2.5 Inch Silicone Coolant Hose Reducer
BESTFIT TRUCK PARTS
$36.71BESTfit 3 Inch To 2.5 Inch Silicone Coolant Hose ReducerIntroducing our Silicone Coolant Hose, designed with a diameter transition from 3.00 inches to 2.50 inches. Crafted from quality silicone material, this hose ensures durability and resistance to...$36.71 -
BESTfit AC Pressure Cycling Switch For Peterbilt
BESTFIT TRUCK PARTS
$15.80BESTfit AC Low Pressure Switch Fits Peterbilt * High Quality AC Pressure Switch* M12 X 1.50 Metric Thread* On At 47 PSI* Off At 23 PSI* Sold Individually* Warranty On A/C Switches Against Defects In Workmanship & Material From Date Of Purchase*** High...$15.80 -
BESTfit Polished Aluminum 8 Inch Diameter Air Tank For Peterbilt
BESTFIT TRUCK PARTS
$379.99BESTfit 8 Inch Air Tank Fits PeterbiltThis Air Tank is crafted from polished aluminum, boasting a total length of 30 inches and an 8-inch diameter. With a maximum pressure rating of 150 PSI, it features multiple threaded ports for convenient installation...$379.99 -
RoadWatch Temperature Sensor Kit- Reads In Fahrenheit
AFTERMARKET
$769.99Sensor Kit W/ Digital Display and 12 Foot Extension CableStay confident and safe on the roads with this RoadWatch Temperature Sensor kit! This innovative device eliminates guesswork by reading both ambient air and road temperatures, providing instant...$769.99 -
52 Inch Strap For 24 Inch Fuel Tank
AUTOMANN USA
$35.89Strap For 24 Inch Fuel Tank Replaces 20111 * High Quality Fuel Tank Strap* 52.00 Inch Length* For 24 Inch Diameter Fuel Tank* Sold Individually* Warranty On Fuel Tank Straps Against Defects In Workmanship & Material From Date Of Purchase*** High Quality...$35.89