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Peterbilt 387 Parts

Here at 4 State Trucks, we carry the best Peterbilt 387 parts in the industry to deliver you a top quality selection of aftermarket and custom semi truck parts for your Peterbilt 377. When you drive a Pete 387, you'll enjoy the combination of power and strength - and, with help from 4 State Trucks, you can customize your truck to meet your every need. We've got aftermarket and custom bumpers, lights, toolboxes, and all the aftermarket parts you need to customize your Peterbilt 387.
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  • FREE SHIPPING OVER $249
    Weather Connector Project Kit W/ Male & Female Connector Housings, 14-16 Gauge Wire Terminals & Quantity/Style Options

    Weather Connector Project Kit W/ Male & Female Connector Housings, 14-16 Gauge Wire Terminals & Quantity/Style Options

    UNITED PACIFIC

    $6.99 - $10.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksOne 2 Wire Weather Connector Project Kit W/ Male & Female Connector Housings/ 14-16 Gauge Wire...
    PPR_301275
    SKU:
    PPR_301275
    Position:
    Kit Full
    Product Type:
    Air, Electrical, & Safety
    Location:
    Made In USA
    Make:
    Universal Items
    $6.99 - $10.99
    Qty in Cart: 0
    Price:
    $6.99 - $10.99
    Subtotal:
  • FREE SHIPPING OVER $249
    ATC/ATO Type Blade Fuse W/ Color & Amp Options

    ATC/ATO Type Blade Fuse W/ Color & Amp Options

    UNITED PACIFIC

    $1.93
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksPurple 3 Amp ATC/ATO Type Blade Fuse3 Amp Purple ATC/ATO Type Blade Fuse* High Quality Fuse* ATC/ATO...
    PPR_301277
    SKU:
    PPR_301277
    Color:
    Green
    Color:
    Yellow
    Color:
    Orange
    Rating:
    15.0 Amps
    Rating:
    5.0 Amps
    Location:
    Made In USA
    Rating:
    20.0 Amps
    Color:
    Purple
    Color:
    Blue
    Product Type:
    Air, Electrical, & Safety
    Color:
    Red
    Rating:
    3.0 Amps
    Rating:
    10.0 Amps
    Rating:
    30.0 Amps
    Make:
    Universal Items
    $1.93
    Qty in Cart: 0
    Price:
    $1.93
    Subtotal:
  • Hogebuilt Stainless Steel Single Axle Fender W/ 3 Inch Flange & Length Options

    Hogebuilt Stainless Steel Single Axle Fender W/ 3 Inch Flange & Length Options

    HOGEBUILT FENDERS

    $275.99 - $336.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksHogebuilt Stainless Steel 48 Inch Single Axle Fender W/ 3 Inch Flange48 Inch Single Axle Fender...
    PPR_301208
    SKU:
    PPR_301208
    Length Options:
    60 Inch
    Style Options:
    Full Fender
    Finish Options:
    Polished
    Location:
    Made In USA
    Material Options:
    Stainless Steel
    Product Type:
    Rear Fenders
    Length Options:
    48 Inch
    Make:
    Universal Items
    $275.99 - $336.99
    Qty in Cart: 0
    Price:
    $275.99 - $336.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Primary Copper Wire 20 AWG 30 Ft Length W/ Color Options

    Primary Copper Wire 20 AWG 30 Ft Length W/ Color Options

    UNITED PACIFIC

    $7.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksBlack Primary Copper Wire 20 AWG 30 Ft LengthBlack 20 AWG Primary Copper Wire 30 Ft Length* High...
    PPR_301273
    SKU:
    PPR_301273
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    $7.99
    Qty in Cart: 0
    Price:
    $7.99
    Subtotal:
  • Hogebuilt Mirror Shine Stainless Steel Flap Weight Upper/Lower Options

    Hogebuilt Mirror Shine Stainless Steel Flap Weight Upper/Lower Options

    HOGEBUILT FENDERS

    $97.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksHogebuilt Mirror Shine Stainless Steel Bottom Flap WeightMirror Shine Stainless Steel Bottom Flap...
    PPR_301199
    SKU:
    PPR_301199
    Location:
    Made In USA
    Finish Options:
    Polished
    Position:
    Lower
    Position:
    Upper
    Product Type:
    Mud Flaps
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    $97.99
    Qty in Cart: 0
    Price:
    $97.99
    Subtotal:
  • Hogebuilt Driver & Passenger Side Half Tandem Fender Mounting Bracket For Peterbilt Low Air & Kenworth AG400L Suspension

    Hogebuilt Driver & Passenger Side Half Tandem Fender Mounting Bracket For Peterbilt Low Air & Kenworth AG400L Suspension

    HOGEBUILT FENDERS

    $924.99
    Half Tandem Fender Mounting Bracket Driver & Passenger Side By Hogebuilt* High Quality Fender Mounting Bracket* Designed To Mount Down Low Half Tandem Fenders* Includes:  - Driver Side Mounting...
    29-1110040
    SKU:
    29-1110040
    Product Type:
    Rear Fenders
    Location:
    Made In USA
    Make:
    Kenworth
    Make:
    Peterbilt
    $924.99
    Qty in Cart: 0
    Price:
    $924.99
    Subtotal:
  • Steel Leaf Spring Suspension 27 Inch Axis 1 & 32 Inch Axis 2 Length

    Steel Leaf Spring Suspension 27 Inch Axis 1 & 32 Inch Axis 2 Length

    DAYTON / DORMAN

    $1,514.99
    Steel Leaf Spring Suspension W/ 5 Leaves & 2 Threaded M32 X 4 Inch Diameter Bushing Pins* High Quality Leaf Spring Suspension* Made Of Steel* Full Taper Front Axle Type* Includes:  - (2) Up Turned...
    29-05090259
    SKU:
    29-05090259
    Material Options:
    Steel
    Product Type:
    Frame & Chassis
    Location:
    Made In USA
    Make:
    Universal Items
    $1,514.99
    Qty in Cart: 0
    Price:
    $1,514.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Chrome Plated Warhead Design Nut Cover Push On 33MM Across Flat

    Chrome Plated Warhead Design Nut Cover Push On 33MM Across Flat

    GRAND GENERAL

    $28.99
    Push On Nut Cover Chrome Plated Warhead Design 33MM Across Flat* High Quality Nut Cover* Made Of Plastic* Chrome Plated Finish* Warhead Design* Dimensions:  - 4-3/16 Inch Height  - 33 MM Across Flat*...
    09-20060037
    SKU:
    09-20060037
    Product Type:
    Wheels
    Material Options:
    Plastic/Poly
    Finish Options:
    Chrome-Plated
    Type Options:
    Push On
    Size Options:
    33 mm
    Style Options:
    Warhead
    Height Options:
    4 Inch
    Make:
    Universal Items
    $28.99
    Qty in Cart: 0
    Price:
    $28.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Stainless Steel Standard Front Hub Cap W/ 7/16 Lip

    Stainless Steel Standard Front Hub Cap W/ 7/16 Lip

    GRAND GENERAL

    $13.89
    Standard Front Hub Cap Stainless Steel W/ 7/16 Lip* High Quality Hub Cap* Made Of Stainless Steel* Fits Most 20, 22.5, And 24.5 Inch Wheels With 8-23/32 Inch Diameter Center Hole* Includes:  - (1)...
    09-2003165
    SKU:
    09-2003165
    Material Options:
    Stainless Steel
    Product Type:
    Wheels
    Width Options:
    2 Inch
    Make:
    Universal Items
    $13.89
    Qty in Cart: 0
    Price:
    $13.89
    Subtotal:
  • XTRACTOR ® XTR-7174 Hub Cap Starter Kit W/ 6 Bolt Holes & 5.25 Inch Flange Outer Diameter For Steer Axle Application Replaces Stemco 4024, SKF 1612

    XTRACTOR ® XTR-7174 Hub Cap Starter Kit W/ 6 Bolt Holes & 5.25 Inch Flange Outer Diameter For Steer Axle Application Replaces Stemco 4024, SKF 1612

    THE HUB CORPORATION

    $228.99
    Oil Bath Xtractor Hub Cap Starter Kit For Steer Axle ApplicationThe XTRACTOR Steer Axle Starter Kit is an ideal introduction to advanced wheel-end filtration and maintenance for heavy-duty truck...
    09-20200620
    SKU:
    09-20200620
    Product Type:
    Wheels
    Make:
    Universal Items
    $228.99
    Qty in Cart: 0
    Price:
    $228.99
    Subtotal:
  • XTRACTOR ® XTR-8856 Hub Cap Assembly W/ 6 Bolt Holes & 6.25 Inch Flange Outer Diameter For Trailer/TN Tapered Spindle Axle Replaces SKF 1643, 1743, 1843

    XTRACTOR ® XTR-8856 Hub Cap Assembly W/ 6 Bolt Holes & 6.25 Inch Flange Outer Diameter For Trailer/TN Tapered Spindle Axle Replaces SKF 1643, 1743, 1843

    THE HUB CORPORATION

    $72.99
    Oil Bath Xtractor Hub Cap Design Fits Trailer/TN Tapered Spindle Axle ApplicationThe XTRACTOR XTR-8856 Oil Hub Cap Assembly is engineered for reliable wheel-end performance in trailer and TN tapered...
    09-20200616
    SKU:
    09-20200616
    Product Type:
    Wheels
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $72.99
    Qty in Cart: 0
    Price:
    $72.99
    Subtotal:
  • FREE SHIPPING OVER $249
    10 Pack 8 AWG Red Crimp & Heat Shrink Seal Butt Connector

    10 Pack 8 AWG Red Crimp & Heat Shrink Seal Butt Connector

    UNITED PACIFIC

    $31.99
    8 AWG Red Crimp & Heat Shrink Seal Butt Connector 10 Pack* High Quality Butt Connector* Crimp And Heat Shrink* 8 AWG* Red* Sold As Pack (10)* Warranty On Butt Connectors Against Defects In...
    09-16030549
    SKU:
    09-16030549
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    $31.99
    Qty in Cart: 0
    Price:
    $31.99
    Subtotal:
  • FREE SHIPPING OVER $249
    2 Pack Lead Free Battery Terminal W/ 5/16 Inch Stud

    2 Pack Lead Free Battery Terminal W/ 5/16 Inch Stud

    UNITED PACIFIC

    $15.99
    Lead Free Battery Terminal W/ 5/16 Inch Stud 2 Pack* High Quality Battery Terminal* Lead Free* 5/16 Inch Stud* Sold As Pack (2)* Warranty On Battery Terminals Against Defects In Workmanship &...
    09-16030532
    SKU:
    09-16030532
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    $15.99
    Qty in Cart: 0
    Price:
    $15.99
    Subtotal:
  • XTRACTOR ® XTR-8058 Hub Cap Assembly W/ 6 Bolt Holes & 7.5 Inch Flange Outer Diameter For Trailer/TN Parallel Spindle Axle Replaces SKF 1696, 1796, 1799

    XTRACTOR ® XTR-8058 Hub Cap Assembly W/ 6 Bolt Holes & 7.5 Inch Flange Outer Diameter For Trailer/TN Parallel Spindle Axle Replaces SKF 1696, 1796, 1799

    THE HUB CORPORATION

    $72.99
    Oil Bath Xtractor Hub Cap Design Fits Trailer/TN Parallel Spindle Axle ApplicationThe XTRACTOR XTR-8058 Oil Hub Cap Assembly is designed to deliver dependable wheel-end protection and performance for...
    09-20200617
    SKU:
    09-20200617
    Product Type:
    Wheels
    Make:
    Universal Items
    $72.99
    Qty in Cart: 0
    Price:
    $72.99
    Subtotal:
  • HEXTHREAD ® Socket, 90Ft/Lbs Torque For All Xtractor Hub Cap Models

    HEXTHREAD ® Socket, 90Ft/Lbs Torque For All Xtractor Hub Cap Models

    THE HUB CORPORATION

    $36.99
    HEXTHREAD Socket Compatible W/ Standard 1/2 Inch Drive Torque Wrenches Fits All Xtractor Hub Cap ModelsThe HEXTHREAD Socket Tool is a high-quality service tool designed for use with all XTRACTOR hub...
    09-20200619
    SKU:
    09-20200619
    Product Type:
    Wheels
    Shape Options:
    Hexagon
    Make:
    Universal Items
    $36.99
    Qty in Cart: 0
    Price:
    $36.99
    Subtotal:
  • FREE SHIPPING OVER $249
    18 Gauge Wire Harness Kit 12 Inch Plug Spacing, 100 3 Pin Push In Connector W/ Right Angle Plug

    18 Gauge Wire Harness Kit 12 Inch Plug Spacing, 100 3 Pin Push In Connector W/ Right Angle Plug

    4 STATE TRUCKS

    $246.99
    Wire Harness Kit 18 Gauge, 12 Inch Plug Spacing, 100 3 Pin Push In Connector W/ Right Angle Plug* High Quality Wire Harness Kit* Made Of 18 Gauge Wire* Roll Of:  - (100) 3 Pin Push In Connector With...
    09-1603035K100
    SKU:
    09-1603035K100
    Size Options:
    18 Gauge
    Position:
    Kit Full
    Product Type:
    Lighting
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $246.99
    Qty in Cart: 0
    Price:
    $246.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Chrome/Zinc Double Sided Watermelon Light Bracket

    Chrome/Zinc Double Sided Watermelon Light Bracket

    BESTFIT TRUCK PARTS

    $22.99
    Double Sided Watermelon Chrome/Zinc Light Bracket* High Quality Light Bracket* Made Of Chrome Plated Zinc* Double Sided Watermelon Light Bracket* Bracket Only (Light Not Included)* Sold Individually*...
    09-1610143
    SKU:
    09-1610143
    Material Options:
    Zinc
    Location:
    Made In USA
    Style Options:
    Watermelon
    Finish Options:
    Chrome-Plated
    Light Options:
    Without Lights
    Product Type:
    Lighting
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $22.99
    Qty in Cart: 0
    Price:
    $22.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Red 2 Diode LED Marker Light W/ Red Lens & 2 Wires

    Red 2 Diode LED Marker Light W/ Red Lens & 2 Wires

    AFTERMARKET

    $7.54
    Red 2 Diode LED Marker Light W/ Surface Mount & White Base* High Quality Marker LED Light* Includes:  - Polycarbonate Lens  - White Base  - (2) Wires* Surface Mount* 2 Diode LED* Red LEDs/Red Lens*...
    09-160106780
    SKU:
    09-160106780
    Product Type:
    Lighting
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $7.54
    Qty in Cart: 0
    Price:
    $7.54
    Subtotal:
  • FREE SHIPPING OVER $219
    RGB Control Kit 8 X 1.22 X 6.6 Inch W/ Control Box & Remote Control

    RGB Control Kit 8 X 1.22 X 6.6 Inch W/ Control Box & Remote Control

    TRUX ACCESSORIES

    $152.99
    8 X 1.22 X 6.6 Inch RGB Control Kit W/ Control Box & Remote Control* High Quality RGB Control Kit* Central Hub Controls For RGB Wiring System* Required For RGB Installation* Controls Up To 8 Light...
    09-16200201
    SKU:
    09-16200201
    Product Type:
    Electronics
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $152.99
    Qty in Cart: 0
    Price:
    $152.99
    Subtotal:
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Adding your products to cart

Your Peterbilt 387 was built for serious miles—and we’ve got the parts to keep it going strong. Whether you’re repairing, replacing, or customizing, our aftermarket selection has the heavy-duty components you need to extend the life of your rig and upgrade its performance.

Why Buy Peterbilt 387 Parts from 4 State Trucks?

- Extend the Life of Your Rig: From cooling systems and replacement semi truck radiators to drivetrain parts, we help you tackle wear before it turns into downtime. - Upgrade Without the Hassle: Our aftermarket parts are designed for a clean fit—so you can get back on the road fast. - Customize Your Cab: Add chrome accents, trim pieces, or interior upgrades to match your personal style. - Heavy-Duty Quality, Built for the Job: Whether you're hauling freight across the country or managing a fleet, our parts are road-tested and shop-approved.

Customize Your Semi Truck Today

Shop online for Peterbilt 387 hood parts, cab lighting, interior flooring accessories, dashboard gauge trim, and everything in between. From work-ready replacements to sleek accessories that make your cab stand out, we carry premium parts that deliver value mile after mile. Looking for Peterbilt 387 hood replacements? Need bumper upgrades, mirror brackets, or replacement lighting? You’ll find all the right parts to restore, refresh, and personalize your 387.

Frequently Asked Questions About Peterbilt 387 Parts

What years are Peterbilt 387 parts compatible with, and are they interchangeable with other models?

Peterbilt 387 parts are specifically designed for model years 2000-2010. While some components like mirrors, lights, and interior accessories may fit other Peterbilt models (384, 385, 389), critical parts like bumpers, hoods, and grilles are model-specific due to mounting point differences. Always verify your truck's exact year and OEM before ordering to ensure proper fitment, as mid-year production changes can affect compatibility.

What materials are aftermarket Peterbilt 387 bumpers made from, and how do they compare to OEM?

Most aftermarket Peterbilt 387 bumpers are constructed from either 16-gauge steel or heavy-duty chrome-plated steel, matching or exceeding OEM specifications. Chrome bumpers typically feature a triple-plating process (copper, nickel, chrome) for corrosion resistance. Painted steel bumpers come with e-coat primer for durability. Quality aftermarket options often include reinforced mounting brackets and can handle the same load ratings as factory parts when properly installed.

What tools and hardware are needed to install Peterbilt 387 bumpers and grilles?

Installation typically requires basic hand tools including 3/4" and 7/8" wrenches, socket sets, and a torque wrench. Most bumpers use existing frame mounting holes but may require new Grade 8 bolts (usually 5/8" or 3/4"). Grille installation needs Phillips and flathead screwdrivers plus possible drill bits for aftermarket accessories. Plan for 2-4 hours installation time for bumpers and 1-2 hours for grilles. Some aftermarket parts include mounting hardware, but OEM-style installations often require separate hardware purchase.

What finish options are available for Peterbilt 387 exterior parts, and how long do they last?

Chrome-plated parts offer the traditional look and typically last 5-7 years with proper maintenance. Powder-coated finishes in black or custom colors provide 7-10 years of protection against rust and chips. Stainless steel options offer the longest lifespan (10+ years) but cost more initially. Painted parts come primed and ready for your choice of automotive paint. For maximum longevity, choose parts with warranty coverage and follow manufacturer care instructions, especially in areas with road salt exposure.

Do aftermarket Peterbilt 387 hoods and fenders affect aerodynamics or fuel efficiency?

Quality aftermarket hoods and fenders are designed to match OEM aerodynamic specifications and should not negatively impact fuel efficiency when properly installed and aligned. Some aftermarket options actually improve airflow with enhanced louver designs or smoother surfaces. Ensure proper gap alignment during installation (typically 3/8" to 1/2" panel gaps) to maintain aerodynamic efficiency. Misaligned panels can create drag and increase fuel consumption by 1-2 mpg.


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