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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.
  • Product
  • Qty in Cart
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  • Price
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  • Safety Decals W/ Style Options

    Safety Decals W/ Style Options

    AUTOMANN USA

    $2.30 - $10.40
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models of TrucksCaution Wide Turns Decal11.75 X 17.25 Inch Caution Wide Turns Decal* High Quality Decal* "Caution Wide...
    PPR_299447
    SKU:
    PPR_299447
    Color:
    Yellow
    Height Options:
    1 1/2 Inch
    Height Options:
    6 Inch
    Product Type:
    Air, Electrical, & Safety
    Width Options:
    27 Inch
    Height Options:
    11 1/2 Inch
    Width Options:
    17 1/4 Inch
    Width Options:
    5 Inch
    Color:
    White
    Height Options:
    12 Inch
    Width Options:
    24 Inch
    Make:
    Universal Items
    $2.30 - $10.40
    Qty in Cart: 0
    Price:
    $2.30 - $10.40
    Subtotal:
  • Steel Adapter JIC/ NPTF Male Hose Fitting

    Steel Adapter JIC/ NPTF Male Hose Fitting

    AUTOMANN USA

    $1.83 - $5.74
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models of TrucksSteel Adapter JIC/ NPTF Male Replaces 70365-0808, G60490-0808, G604900808, JCM08-NPM081/2 Inch-14 X 3/4...
    PPR_299452
    SKU:
    PPR_299452
    Diameter Options:
    3/8 Inch
    Length Options:
    1 5/8 Inch
    Length Options:
    1 1/2 Inch
    Length Options:
    2 Inch
    Length Options:
    1 1/4 Inch
    Material Options:
    Steel
    Length Options:
    1 3/4 Inch
    Product Type:
    Cargo Control
    Make:
    Universal Items
    $1.83 - $5.74
    Qty in Cart: 0
    Price:
    $1.83 - $5.74
    Subtotal:
  • Yellow 2 Inch X 30 FT Ratchet Strap - 3335 Lbs Working Load

    Yellow 2 Inch X 30 FT Ratchet Strap - 3335 Lbs Working Load

    AUTOMANN USA

    $20.94 - $27.08
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models of TrucksYellow 2 Inch X 30 FT J-Hook Ratchet Strap- 3335 Lbs Working Load2 Inch X 30 FT Yellow J-Hook Ratchet...
    PPR_299448
    SKU:
    PPR_299448
    Product Type:
    Cargo Control
    Rating:
    10000 LBS
    Color:
    Yellow
    Width Options:
    2 Inch
    Length Options:
    360 Inch
    Make:
    Universal Items
    $20.94 - $27.08
    Qty in Cart: 0
    Price:
    $20.94 - $27.08
    Subtotal:
  • Knoedler Extreme Low Rider Mid Back Seat W/ Headrest, Arms, Isolator- Gray Mordura Cloth

    Knoedler Extreme Low Rider Mid Back Seat W/ Headrest, Arms, Isolator- Gray Mordura Cloth

    KNOEDLER

    $2,249.99
    Gray Mordura Cloth Extreme Low Rider Mid Back Seat W/ Headrest, Arms, IsolatorOptimize your truck cab with the Knoedler Extreme Low Rider Mid Back Seat, upholstered in durable gray Mordura cloth and...
    98SCL62MH0D05
    SKU:
    98SCL62MH0D05
    Material Options:
    Nylon
    Product Type:
    Seats
    Degree Options:
    45
    Color:
    Gray
    Style Options:
    Mid Back
    Make:
    Universal Items
    $2,249.99
    Qty in Cart: 0
    Price:
    $2,249.99
    Subtotal:
  • Knoedler Low Rider Air Chief High Back Seat W/ FAS Lumbar, Arms W/ Black Synthetic Leather

    Knoedler Low Rider Air Chief High Back Seat W/ FAS Lumbar, Arms W/ Black Synthetic Leather

    KNOEDLER

    $1,580.99
    Black Synthetic Leather Low Rider Air Chief High Back Seat W/ FAS Lumbar, ArmsTake your driving comfort to the next level with the Knoedler Low Rider Air Chief High Back Seat. Lowered by 1.5 inches,...
    98LRL82TB0S01
    SKU:
    98LRL82TB0S01
    Degree Options:
    45
    Width Options:
    20 Inch
    Color:
    Black
    Material Options:
    Synthetic Leather
    Style Options:
    High Back
    Product Type:
    Seats
    Make:
    Universal Items
    $1,580.99
    Qty in Cart: 0
    Price:
    $1,580.99
    Subtotal:
  • Knoedler Extreme Low Rider Air Chief Mid Back Seat W/ FAS Lumbar, Headrest, Arms, Integrated Compressor- Black & Gray Synthetic Leather

    Knoedler Extreme Low Rider Air Chief Mid Back Seat W/ FAS Lumbar, Headrest, Arms, Integrated Compressor- Black & Gray Synthetic Leather

    KNOEDLER

    $2,625.99
    Black & Gray Synthetic Leather Extreme Low Rider Air Chief Mid Back Seat W/ FAS Lumbar, Headrest, Arms, Integrated Compressor- Black & Gray Synthetic LeatherFor drivers seeking a perfect blend of...
    98SSL62MH0S015
    SKU:
    98SSL62MH0S015
    Product Type:
    Seats
    Color:
    Black
    Material Options:
    Synthetic Leather
    Style Options:
    Mid Back
    Degree Options:
    45
    Make:
    Universal Items
    $2,625.99
    Qty in Cart: 0
    Price:
    $2,625.99
    Subtotal:
  • Knoedler Extreme Low Rider Air Chief Mid Back Seat W/ FAS Lumbar, Arms, Headrest, Integrated Compressor- Black Synthetic Leather

    Knoedler Extreme Low Rider Air Chief Mid Back Seat W/ FAS Lumbar, Arms, Headrest, Integrated Compressor- Black Synthetic Leather

    KNOEDLER

    $2,625.99
    Black Synthetic Leather Extreme Low Rider Air Chief Mid Back Seat W/ FAS Lumbar, Arms, Headrest, Integrated CompressorMaximize long-haul comfort with the Knoedler Extreme Low Rider Air Chief Mid Back...
    98SSL62MH0S01
    SKU:
    98SSL62MH0S01
    Color:
    Black
    Style Options:
    Mid Back
    Degree Options:
    45
    Product Type:
    Seats
    Material Options:
    Synthetic Leather
    Make:
    Universal Items
    $2,625.99
    Qty in Cart: 0
    Price:
    $2,625.99
    Subtotal:
  • Knoedler Extreme Low Rider Air Chief Mid Back Seat W/ FAS Lumbar, Arms, Headrest- Gray Synthetic Leather

    Knoedler Extreme Low Rider Air Chief Mid Back Seat W/ FAS Lumbar, Arms, Headrest- Gray Synthetic Leather

    KNOEDLER

    $2,267.99
    Gray Synthetic Leather Extreme Low Rider Air Chief Mid Back Seat W/ FAS Lumbar, Arms, HeadrestElevate your driving experience with the Knoedler Extreme Low Rider Air Chief Mid Back Seat, upholstered...
    98SCL62MH0S05
    SKU:
    98SCL62MH0S05
    Degree Options:
    45
    Color:
    Gray
    Material Options:
    Synthetic Leather
    Style Options:
    Mid Back
    Product Type:
    Seats
    Make:
    Universal Items
    $2,267.99
    Qty in Cart: 0
    Price:
    $2,267.99
    Subtotal:
  • Knoedler Extreme Low Rider Mid Back Seat W/ Headrest, Arms, Isolator- Black Mordura Cloth

    Knoedler Extreme Low Rider Mid Back Seat W/ Headrest, Arms, Isolator- Black Mordura Cloth

    KNOEDLER

    $2,249.99
    Black Mordura Cloth Extreme Low Rider Mid Back Seat W/ Headrest, Arms, IsolatorTake command of your cab with the Knoedler Extreme Low Rider Mid Back Seat, designed for maximum comfort and...
    98SCL62MH0D01
    SKU:
    98SCL62MH0D01
    Product Type:
    Seats
    Color:
    Black
    Material Options:
    Nylon
    Style Options:
    Mid Back
    Degree Options:
    45
    Make:
    Universal Items
    $2,249.99
    Qty in Cart: 0
    Price:
    $2,249.99
    Subtotal:
  • Knoedler Extreme Low Rider Mid Back Seat W/ FAS Lumbar, Arms- Black Synthetic Leather

    Knoedler Extreme Low Rider Mid Back Seat W/ FAS Lumbar, Arms- Black Synthetic Leather

    KNOEDLER

    $2,170.99
    Black Synthetic Leather Extreme Low Rider Mid Back Seat W/ FAS Lumbar, ArmsRide in comfort and style with the Knoedler Extreme Low Rider Mid Back Seat, a high-performance seat designed for drivers...
    98SCL60MB0S01
    SKU:
    98SCL60MB0S01
    Degree Options:
    45
    Width Options:
    20 Inch
    Material Options:
    Synthetic Leather
    Color:
    Black
    Style Options:
    Mid Back
    Product Type:
    Seats
    Make:
    Universal Items
    $2,170.99
    Qty in Cart: 0
    Price:
    $2,170.99
    Subtotal:
  • Knoedler Low Rider Air Chief Wide Seat W/ FAS Lumbar, Arms- Black Synthetic Leather

    Knoedler Low Rider Air Chief Wide Seat W/ FAS Lumbar, Arms- Black Synthetic Leather

    KNOEDLER

    $1,580.99
    Black Synthetic Leather Low Rider Air Chief Wide Seat W/ FAS Lumbar, ArmsDrive in comfort and style with the Knoedler Low Rider Air Chief Wide Seat. The 23-inch wide cushion, mid-back seat, and...
    98LWL82MH0S01
    SKU:
    98LWL82MH0S01
    Product Type:
    Seats
    Color:
    Black
    Style Options:
    Mid Back
    Material Options:
    Synthetic Leather
    Width Options:
    23 Inch
    Degree Options:
    45
    Make:
    Universal Items
    $1,580.99
    Qty in Cart: 0
    Price:
    $1,580.99
    Subtotal:
  • Knoedler Air Chief Standard Base Mid Back Seat W/ FAS Lumbar, Arms, Headrest, Bellows- Black & Brown Synthetic Leather

    Knoedler Air Chief Standard Base Mid Back Seat W/ FAS Lumbar, Arms, Headrest, Bellows- Black & Brown Synthetic Leather

    KNOEDLER

    $1,876.99
    Black & Brown Synthetic Leather Air Chief Standard Base Mid Back Seat W/ FAS Lumbar, Arms, Headrest, BellowsLong-haul drivers can enjoy unmatched comfort with the Knoedler Air Chief Standard Base Mid...
    98CWL82MH0S12
    SKU:
    98CWL82MH0S12
    Product Type:
    Seats
    Style Options:
    Mid Back
    Material Options:
    Synthetic Leather
    Color:
    Black
    Width Options:
    23 Inch
    Make:
    Universal Items
    $1,876.99
    Qty in Cart: 0
    Price:
    $1,876.99
    Subtotal:
  • V-Band Clamp For Cummins ISM, ISX 12, ISX 15 Engine Replaces 2871863

    V-Band Clamp For Cummins ISM, ISX 12, ISX 15 Engine Replaces 2871863

    AUTOMANN USA

    $32.14
    13.375 Inch V- Band ClampProtect your DPF muffler system on Cummins ISM, ISX 12, and ISX 15 engines with this high-quality stainless steel V-Band Clamp, replacing 2871863. The 12.5-inch body and 13...
    29-08060022
    SKU:
    29-08060022
    Length Options:
    12 1/2 Inch
    Material Options:
    Stainless Steel
    Style Options:
    Cummins
    Diameter Options:
    13 1/2 Inch
    Product Type:
    Exhaust
    Make:
    Universal Items
    $32.14
    Qty in Cart: 0
    Price:
    $32.14
    Subtotal:
  • Knoedler Chief Standard Base High Back Seat W/ 2 Lumbar Supports, Arms, Heat, Massage- Red & Black Synthetic Leather

    Knoedler Chief Standard Base High Back Seat W/ 2 Lumbar Supports, Arms, Heat, Massage- Red & Black Synthetic Leather

    KNOEDLER

    $2,996.99
    Red & Black Synthetic Leather Chief Standard Base High Back Seat W/ 2 Lumbar Supports, Arms, Heat, MassageElevate your cab interior with the Knoedler Chief Standard Base High Back Seat, designed for...
    98CHS82TB0S16
    SKU:
    98CHS82TB0S16
    Color:
    Black
    Product Type:
    Seats
    Degree Options:
    45
    Style Options:
    High Back
    Material Options:
    Synthetic Leather
    Height Options:
    20 Inch
    Make:
    Universal Items
    $2,996.99
    Qty in Cart: 0
    Price:
    $2,996.99
    Subtotal:
  • On Sale
    Limited Quantity Available
    Knoedler Harrier Standard Base High Back Seat W/ Air Lumbar, Arms- Black Synthetic Leather

    Knoedler Harrier Standard Base High Back Seat W/ Air Lumbar, Arms- Black Synthetic Leather

    KNOEDLER

    Now: $933.79
    Was: $1,333.99
    Black Synthetic Leather Harrier Standard Base High Back Seat W/ Air Lumbar, ArmsExperience premium comfort and advanced ergonomics with the Knoedler Harrier Standard Base High Back Seat. This...
    941082TB0S01
    SKU:
    941082TB0S01
    Material Options:
    Synthetic Leather
    Degree Options:
    45
    Product Type:
    Seats
    Color:
    Black
    Style Options:
    High Back
    Make:
    Universal Items
    Ready To Ship:
    Yes
    Now: $933.79
    Was: $1,333.99
    Qty in Cart: 0
    Price:
    Now: $933.79
    Was: $1,333.99
    Subtotal:
  • Hub Odometer Bracket Replaces GT-4065, STM6100065, 610-0065

    Hub Odometer Bracket Replaces GT-4065, STM6100065, 610-0065

    AUTOMANN USA

    $18.50
    Hub Odometer BracketEnhance the stability of your hub odometer assembly with this premium Hub Odometer Bracket. Featuring two legs with 0.375-inch mounting holes and a 0.5-inch top mounting hole, it...
    29-20200053
    SKU:
    29-20200053
    Width Options:
    1 1/2 Inch
    Product Type:
    Wheels
    Height Options:
    3 1/2 Inch
    Length Options:
    5 1/2 Inch
    Make:
    Universal Items
    $18.50
    Qty in Cart: 0
    Price:
    $18.50
    Subtotal:
  • V-Band Clamp For Cummins & PACCAR Engine Replaces 2871862, Q187681, P238308, AC300011

    V-Band Clamp For Cummins & PACCAR Engine Replaces 2871862, Q187681, P238308, AC300011

    AFTERMARKET

    $53.99
    11.90 Inch V-Band ClampKeep your Cummins or PACCAR engine running efficiently with this high-quality V-Band Clamp. With stainless steel construction, a 9.5-inch body, and 11.900-inch nominal...
    29-08060018
    SKU:
    29-08060018
    Diameter Options:
    11 1/2 Inch
    Length Options:
    9 1/2 Inch
    Style Options:
    Paccar
    Material Options:
    Stainless Steel
    Product Type:
    Exhaust
    Make:
    Universal Items
    $53.99
    Qty in Cart: 0
    Price:
    $53.99
    Subtotal:
  • Camshaft Position Sensor For Caterpillar C15 Engines Replaces 2016617

    Camshaft Position Sensor For Caterpillar C15 Engines Replaces 2016617

    AUTOMANN USA

    $147.99
    Caterpillar C15 Engine Camshaft Position Sensor- 2 PinMaximize engine efficiency and performance with this high-quality Camshaft Position Sensor for CAT C15 engines, replacing 2016617. Featuring a...
    29-07100070
    SKU:
    29-07100070
    Style Options:
    Caterpillar
    Length Options:
    2 1/2 Inch
    Product Type:
    Engine Parts
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $147.99
    Qty in Cart: 0
    Price:
    $147.99
    Subtotal:
  • Oil Filler Cap For PACCAR MX13 Engine Replaces 1785085, 1785085PE

    Oil Filler Cap For PACCAR MX13 Engine Replaces 1785085, 1785085PE

    AUTOMANN USA

    $19.04
    PACCAR MX13 Engine Oil Filler CapMaintain your PACCAR MX13 engine with this high-quality replacement Oil Filler Cap, designed to replace 1785085 and 1785085PE. Made from durable rubber with a...
    29-072000014
    SKU:
    29-072000014
    Material Options:
    Rubber
    Product Type:
    Engine Parts
    Color:
    Red
    Style Options:
    Paccar
    Diameter Options:
    1 1/2 Inch
    Make:
    Universal Items
    $19.04
    Qty in Cart: 0
    Price:
    $19.04
    Subtotal:
  • Engine Oil Filter Screw Cap For PACCAR MX13 Engine Replaces 1876740, 1876740, 1936324, 1936324, 1948922, 2011888

    Engine Oil Filter Screw Cap For PACCAR MX13 Engine Replaces 1876740, 1876740, 1936324, 1936324, 1948922, 2011888

    AUTOMANN USA

    $69.99
    PACCAR MX13 Engine Oil Filter Screw CapEnsure your PACCAR MX13 engine continues to operate efficiently with this replacement Engine Oil Filter Screw Cap. Its centrifugal screw-on design with included...
    29-072000015
    SKU:
    29-072000015
    Style Options:
    Paccar
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $69.99
    Qty in Cart: 0
    Price:
    $69.99
    Subtotal:
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Adding your products to cart

Shop Premium Peterbilt 386 Parts & Accessories for Your Rig

Find high-quality, aftermarket Peterbilt 386 Parts to maintain the value of your rig. Whether it’s an under-the-hood performance upgrade, like swapping out your exhaust system components, a quality of life upgrade for your sleeper cab space, or shiny new chrome, we keep a large inventory of heavy-duty Class 8 truck parts designed to fit the 386 model (2006- 2015). Keep your Peterbilt 386 running strong with high-quality parts and accessories. From chrome-polished front bumpers and sleek LED lighting fixtures to engine components and interior upgrades, we've got you covered. Popular options include: - Bumpers & Grille Guards: Protect your rig in style. - Lighting Upgrades: Boost visibility with headlights and marker lights. - Engine & Exhaust: Keep performance top-notch. - Interior Accessories: Seats, dash panels, and storage for added comfort. - Exterior Parts: Fenders, mud flaps, and sleeper add-ons for a sharp look. Whether you're customizing or maintaining your truck, find everything you need to get the job done right. Shop now and keep your 386 in top shape!.

Frequently Asked Questions About Peterbilt 386 Parts

Will aftermarket bumpers fit my specific year Peterbilt 386, and what modifications might be needed?

Most aftermarket bumpers are designed to fit Peterbilt 386 models from 2006-2015, but fitment can vary based on your specific configuration. Pre-2008 models may require different mounting brackets due to frame changes. Always verify your OEM and model year before ordering. Common modifications include drilling new mounting holes for accessories like fog lights or adjusting bracket positions for trucks with front-mounted equipment. We recommend having 2-3 hours set aside for installation, even with bolt-on bumpers.

What's the actual weight difference between chrome steel, stainless steel, and aluminum bumpers?

Chrome steel bumpers typically weigh 85-120 pounds, stainless steel versions run 80-115 pounds, while aluminum options weigh 35-55 pounds. The weight saOEMgs with aluminum can improve fuel economy and reduce front axle load, but aluminum bumpers may dent more easily than steel in minor impacts. Stainless steel offers the best corrosion resistance without paint or chrome maintenance, making it popular for trucks operating in harsh weather conditions or coastal areas.

Do I need special tools or professional installation for headlight assemblies and electrical components?

Basic headlight replacement requires standard hand tools, but LED conversions often need additional wiring harnesses or resistors to prevent hyperflashing and dashboard errors. The 386's multiplexed electrical system can be sensitive to aftermarket lights. We strongly recommend using plug-and-play harnesses designed specifically for Peterbilt applications. Professional installation typically runs $200-400 but ensures proper aim adjustment and electrical compatibility.

Which grille styles actually improve airflow and cooling, and which are purely cosmetic?

Punched hole and horizontal bar grilles generally provide 15-20% better airflow than OEM, which can lower EGTs by 20-30 degrees during heavy hauling. Vertical bar and billet styles are primarily aesthetic and may slightly restrict airflow. For trucks running in hot climates or heavy-haul applications, avoid grilles with less than 60% open area. Winter front covers are recommended for any aftermarket grille in freezing conditions to maintain proper operating temperatures.

How do I match aftermarket hoods and fenders to my existing paint, and what about gel coat versus painted fiberglass?

Gel coat fiberglass parts come in standard white and require professional painting to match your truck, typically adding $800-1500 to your cost. Pre-painted options are available but limited to common fleet colors. For exact matching, provide your paint code (found on the driver door jamb sticker) to a body shop before ordering. Gel coat is 20-30% thicker than painted finishes and better resists stone chips, but repairs are more visible. Allow 2-3 weeks for custom paint work during peak season.


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