
Peterbilt 386 Parts
Find the best Peterbilt 386 aftermarket and custom parts in the business here at 4 State. The Peterbilt 386 semi truck has all the same great features and construction expected from the Peterbilt brand, with one notable addition: the 386 has an innovative design that was developed to help reduce the ongoing operational costs for truck owners. Pete 386's aerodynamic shape and other careful considerations during manufacturing created a high value big rig that offers an unparalleled combination of fuel efficiency, performance, and style. If you want your truck to be a one-of-a-kind custom truck, 4 State Trucks has custom parts and accessories to help. Hit the highway in style with our selection of aftermarket bumpers, exhaust, wheels, and more for your Peterbilt 18 wheeler.
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BESTfit Yellow Trailer Brake Knob
BESTFIT TRUCK PARTS
$4.02BESTfit Trailer Brake KnobUpgrade your trailer brake system with our aftermarket replacement Trailer Brake Knob, designed for durability and ease of use. Crafted from quality plastic in a vibrant yellow factory-style, this knob offers style. Sold...$4.02 -
BESTfit 8 To 5 X 96 Inch Curve Turn Stack
BESTFIT TRUCK PARTS
$775.99BESTfit 8-5 X 96 Inch Turnout StackUpgrade your vehicle's exhaust system with our chrome-plated steel Exhaust Stack! Featuring a classic turnout style, this aftermarket replacement part boasts an 8 to 5-inch inner diameter for optimal performance. With a...$775.99 -
BESTfit Nut For Hood Pivot Bolt Replaces HWC07084 For Peterbilt 377, 378, 379 & 386
BESTFIT TRUCK PARTS
$9.29BESTfit Replacement Hood Pivot Bolt NutSecure your hood pivot bolt with our premium castellated nut! Designed to prevent unwanted movement, this aftermarket replacement part replaces OE number HWC07084. Sold individually, it offers a cost-effective...$9.29 -
BESTfit 2.5 X 14.75 Inch Flex Connector W/ Flange Replaces M666559 For Kenworth & Peterbilt
BESTFIT TRUCK PARTS
$147.99SS 12 3/4 Inch DPF Flex ConnectorPresenting our Connector, meticulously crafted in the USA to meet your vehicle's needs. With a 2.5-inch flange by 2.5-inch flange, compressed to 12.750 inches, this aftermarket replacement part ensures a precise fit in...$147.99 -
BESTfit 5 Inch X 14.5 Inch Bead Flex Connector W/ Flange Replaces M6665420335 For Kenworth & Peterbilt
BESTFIT TRUCK PARTS
$272.99BESTfit Stainless Steel 14.5 Inch Long DPF Flex Connector PipeIntroducing our Flex Connector, crafted in the USA with precision and care. This aftermarket replacement part boasts a 5-inch flange by 5-inch flange, compressed to 14.500 inches, ensuring a...$272.99 -
BESTfit 5 X 11.375 Inch Bead Flex Connector W/ Flange Replaces M6665420320 For Kenworth & Peterbilt
BESTFIT TRUCK PARTS
$215.99SS DPF Bead Flex Connector PipeOur Flex Connector, proudly made in the USA, features a 5-inch flange by 5-inch flange, compressed to 11.375 inches. Sold individually as an aftermarket replacement part, it ensures a secure fit in your exhaust system,...$215.99 -
BESTfit 4 X 14.25 Inch Flex Connector Replaces M66-65410-405 & M66-7091-0405 For Kenworth & Peterbilt
BESTFIT TRUCK PARTS
$272.99BESTfit Stainless Steel 14.25 Inch Long DPF Flex Connector W/ 4 Inch FlangeOur Exhaust Connector is engineered in the USA to meet your needs. With dimensions of 4 inches flange by 4 inches flange, compressed to 14.250 inches, it ensures a secure fit in...$272.99 -
BESTfit 4 X 12.25 Inch Flex Connector W/ Flange Replaces M6665410335 & M6670910335 For Kenworth & Peterbilt
BESTFIT TRUCK PARTS
$256.99BESTfit Stainless Steel 12.25 Inch Long DPF Flex Connector W/ 4 Inch FlangeCrafted in the USA, our Stainless Steel Flex Connector offers durability and reliability for your needs. With dimensions of 4 inches flange by 4 inches flange, compressed to 12...$256.99 -
BESTfit 4 X 11.375 Inch Flex Connector Replaces M66-6541-0320 For Kenworth & Peterbilt
BESTFIT TRUCK PARTS
$199.99BESTfit DPF Exhaust Flex Connector PipeOur Flex Connector, crafted in the USA, boasts a 4-inch flange by 4-inch flange dimension, compressed to 11.375 inches. Ensuring top-notch quality, it's sold individually as an aftermarket replacement part,...$199.99 -
BESTfit Coolant Reservoir For Cummins Or CAT Engine With Behr Cooling Module - Replaces N5346001
BESTFIT TRUCK PARTS
$219.99BESTfit Coolant Reservoir Fits Peterbilt & KenworthOver Time Coolant Reservoirs Become Susceptible To Heat And Engine Vibration And Eventually Crack And Leak. Our Coolant Reservoirs Are Manufactured With Premium Plastic To Withstand The Effects Of Stress...$219.99 -
BESTfit Chrome 72 Inch West Coast Turnout Stack 5 Inch O.D.
BESTFIT TRUCK PARTS
$217.99BESTfit Chrome West Coast Turn Out Top Stack 72 Inch x 5 Inch O.D. * High Quality Stack* West Coast Turn Out* Made Of Chrome-Plated Steel* 5 Inch O.D. Straight End* 72 Inch Length* Mirror-Like Finish* Quality Triplex Nickel For Improved Adhesion And...$217.99 -
BESTfit Fiberglass Roof Cap For Flat Top For Peterbilt 378, 379, 386, 389
FIBERTECH
$755.99Peterbilt 1 Piece Fiberglass Flat Top Roof CapUpgrade your vehicle's roof with our Fiberglass Roof Cap, designed for flat top regular cab models. Crafted from durable fiberglass in a one-piece construction, this roof cap offers a perfect fit and...$755.99