Peterbilt 379 Parts
Find the best Peterbilt 379 aftermarket and custom parts in the business here at 4 State. The Peterbilt 379 is one of the most popular American owner-operator truck models of all time. Pete truck models are a brand of choice for experienced truckers who need dependable semi trucks. 4 State Trucks has all the aftermarket semi truck parts and accessories you need to make your Pete 379 stand out to showcase your unique personality. Whether you need 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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BESTfit Air Bag - Replaces W013588008
BESTFIT TRUCK PARTS
$243.99BESTfit Air BagUpgrade your vehicle's suspension with our quality air bag. Designed for durability and performance, this aftermarket replacement part offers reliable support and enhanced ride comfort. Sold individually, it's the perfect solution for...$243.99 -
BESTfit Adjustable Linkage Kit With Rod For Air Level Valves
BESTFIT TRUCK PARTS
$14.37BESTfit Height Control Valve Linkage And Rod Kit, Replaces 03-05180Upgrade your height control valve system with our Adjustable Linkage Kit, meticulously engineered for optimal performance and versatility. This kit includes an 18-inch rod with ends and...$14.37 -
Fiberglass Wide Trim Full Radius Fender, 48.5 Inch Wide
WTI FENDERS
$445.99Black Single Axle Fender W/ Wide LipEnhance your vehicle's aesthetic with our Single Fender, crafted from durable fiberglass in sleek black. With dimensions measuring 27.25 inches in height, 30.5 inches in width, and 49 inches in length, this fender...$445.99 -
Peterbilt 379 BESTfit 5 Inch ID/O.D. 90 Degree Elbow Pipe, Replaces 14-13433
BESTFIT TRUCK PARTS
$80.37BESTfit Lower Elbow Below Turbo Frame PipeElevate your exhaust system with our Galvanized Steel Elbow Pipe, proudly made in the USA for superior quality and durability. Designed with precision, this elbow pipe features a 5-inch inside diameter measuring...$80.37 -
Peterbilt 379 BESTfit 5 Inch 75 Degree Aluminized Exhaust Elbow Below Turbo Pipe For Replaces 14-13395
BESTFIT TRUCK PARTS
$246.99Aluminized Steel 75 Degree Exhaust Elbow W/ 5 Inch I.D. Inlet & 5 Inch O.D. OutletUpgrade your exhaust system with our Aluminized Steel Exhaust Elbow. Crafted with precision from quality materials, this elbow features a 5-inch I.D. inlet and a 5-inch O.D...$246.99 -
Peterbilt BESTfit 5 Inch 90 Degree Lower Elbow Below Turbo Pipe Replaces 14-09456
BESTFIT TRUCK PARTS
$97.40Steel 90 Degree Elbow PipeUpgrade your engine setup with our durable Steel Elbow. With a 5-inch length and 90-degree angle, this elbow is designed for use below the turbo, ensuring optimal performance. Made in the USA and sold individually as an...$97.40 -
Peterbilt BESTfit Steel Exhaust Y-Pipe - 5 Inch With 9 Inch Muffler
BESTFIT TRUCK PARTS
$2,434.99BESTfit Exhaust Y-Pipe With Muffler Fits PeterbiltEnhance your vehicle's exhaust system with this sturdy component crafted from durable steel, ensuring long-lasting performance on the road. With a length of 5 inches and compatible with a 9-inch muffler,...$2,434.99 -
Freightliner BESTfit 5 Inch O.D. Chrome Y-Pipe, Replaces A04-13974-000
BESTFIT TRUCK PARTS
$477.99BESTfit Chrome-Plated Steel Y Exhaust Pipe W/ 5 Inch O.D. Inlet & OutletsUpgrade your exhaust system with this premium Exhaust Y-Pipe made of durable chrome-plated steel. Designed for optimal performance, it features a 5-inch outer diameter inlet and two...$477.99 -
Peterbilt BESTfit Air Bag For Air Leaf & Air Trac Suspensions
BESTFIT TRUCK PARTS
$159.99BESTfit 18.8 x 12.6 Inch Air Bag With Load 5700 LBs At 80 PSIThe "Air Bag" is a suspension component measuring 18.8 inches in height and 12.6 inches in diameter. It features a plastic base with a top plate that includes three holes/studs, measuring 9...$159.99 -
Peterbilt Flex Air & Kenworth Fiberglass Fender Bracket Kit For Full Fenders For AG380
WTI FENDERS
$1,034.99Fender Bracket Kit Fits Peterbilt Flex Air And Kenworth AG380Upgrade your vehicle's fender setup with this comprehensive kit designed for WTI Fiberglass Full Fenders. Crafted from durable steel, this aftermarket replacement part ensures a sturdy and...$1,034.99 -
Peterbilt 377, 378, 379 BESTfit Fiberglass 63 Inch Roof Panel Flat For Ultracab
BESTFIT TRUCK PARTS
$2,017.99BESTfit Fiberglass Roof Panel For Ultra RoofUpgrade your vehicle with our aftermarket Roof Panel Flat, crafted from durable fiberglass. Easy to install with Huck Rivets (not included), this roof panel requires the original roof bow to be shortened for a...$2,017.99 -
BESTfit 5 Inch Diameter Steel Universal Exhaust Y-Pipe 15 Inch L X 30 Inch W
BESTFIT TRUCK PARTS
$139.99BESTfit Steel Exhaust Y-PipeEnhance your vehicle's exhaust system with our Steel 5-Inch Y-Divider Exhaust Pipe. Constructed for durability and efficiency, this aftermarket replacement part is designed to optimize exhaust flow. With dimensions of 15...$139.99