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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.
  • Product
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  • Price
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  • EZ Claw Black Steel Flange Mount Bracket

    EZ Claw Black Steel Flange Mount Bracket

    EZ CLAW

    $96.99
    Reliable cab-mounted support is easy with the EZ Claw Black Steel Flange Mount Bracket. With 11 inches of clearance and precision laser-cut, robotically welded construction, it provides a durable...
    PPR_300769
    SKU:
    PPR_300769
    Product Type:
    Cargo Control
    Make:
    Universal Items
    $96.99
    Qty in Cart: 0
    Price:
    $96.99
    Subtotal:
  • 18 Inch Chrome Aluminum Blaze Style Steering Wheel With Black Leather Rim

    18 Inch Chrome Aluminum Blaze Style Steering Wheel With Black Leather Rim

    UNITED PACIFIC

    $556.99
    Blaze Chrome Aluminum Steering Wheel With Black Rim* High Quality Steering Wheel* Chrome-Plated Aluminum* Black* 18 Inch* Blaze Style * With Black Leather Rim * Hub And Horn Button Assembly Available...
    09-1500422
    SKU:
    09-1500422
    Truck Class:
    Heavy Duty
    Product Type:
    Interior
    Diameter Options:
    18 Inch
    Material Options:
    Aluminum
    Make:
    Universal Items
    $556.99
    Qty in Cart: 0
    Price:
    $556.99
    Subtotal:
  • FREE SHIPPING OVER $249
    2 Inch Red LED Light Kit - Pack Of 5

    2 Inch Red LED Light Kit - Pack Of 5

    TRUX ACCESSORIES

    $17.05
    9 Diode 2 Inch Round Red LED Clearance-Marker Light W/ Red Lens - Sold as 5 PackDo you need a bright marker or clearance light? 4 State Trucks offers this pack of 5 quality 2-inch round red LED light...
    CSMLIGHTKIT2
    SKU:
    CSMLIGHTKIT2
    Product Type:
    Lighting
    Diameter Options:
    2 Inch
    Material Options:
    Plastic/Poly
    Truck Class:
    Universal
    Shape Options:
    Round
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $17.05
    Qty in Cart: 0
    Price:
    $17.05
    Subtotal:
  • FREE SHIPPING OVER $249
    2 Inch Amber LED Light Kit - Pack Of 5

    2 Inch Amber LED Light Kit - Pack Of 5

    TRUX ACCESSORIES

    $26.50
    9 Diode 2 Inch Round Amber LED Clearance-Marker Light W/ Amber Lens - Sold as 5 Pack4 State Trucks offers this 5 piece quality 2-inch round amber lights. Each light features 9 diodes and a damage...
    CSMLIGHTKIT3
    SKU:
    CSMLIGHTKIT3
    Diameter Options:
    2 Inch
    Material Options:
    Plastic/Poly
    Shape Options:
    Round
    Truck Class:
    Universal
    Product Type:
    Lighting
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $26.50
    Qty in Cart: 0
    Price:
    $26.50
    Subtotal:
  • Merritt Aluminum 13 X 15.5 X 16 Inch 2 Battery Box With Step & Deck Plate

    Merritt Aluminum 13 X 15.5 X 16 Inch 2 Battery Box With Step & Deck Plate

    MERRITT

    $1,387.99
    Aluminum 13 Inch X 15.5 Inch X 16 Inch Battery Box With Step & Deck PlateStore up to two batteries horizontally with this high quality aluminum box with a step. It mounts on the side and features a...
    3562
    SKU:
    3562
    Material Options:
    Aluminum
    Product Type:
    Frame & Chassis
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    $1,387.99
    Qty in Cart: 0
    Price:
    $1,387.99
    Subtotal:
  • On Sale
    Limited Quantity Available
    Merritt Aluminum 16.25 X 23 X 30.125 Inch 6 Battery Box Without Step

    Merritt Aluminum 16.25 X 23 X 30.125 Inch 6 Battery Box Without Step

    MERRITT

    Now: $605.17
    Was: $1,197.99
    Aluminum 16.25 Inch X 23 Inch X 30.125 Inch Battery Box Without StepsThis high quality 16.25 X 23 X 30.125 inch Merritt aluminum battery box has a tread plate cover and does not have a step or top...
    491
    SKU:
    491
    Product Type:
    Frame & Chassis
    Material Options:
    Aluminum
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Ready To Ship:
    Yes
    Now: $605.17
    Was: $1,197.99
    Qty in Cart: 0
    Price:
    Now: $605.17
    Was: $1,197.99
    Subtotal:
  • Merritt Aluminum 16.43 X 20.25 X 25.25 Inch 4 Battery Box With Top Deck & Without Step

    Merritt Aluminum 16.43 X 20.25 X 25.25 Inch 4 Battery Box With Top Deck & Without Step

    MERRITT

    $2,540.99
    Diamond Plate Aluminum Inch Battery Box With Deck Plate & Without StepThis high quality 16.43 X 20.25 X 25.25 inch Merritt aluminum battery box has a tread plate cover and a step, but not a top deck...
    3504
    SKU:
    3504
    Truck Class:
    Heavy Duty
    Material Options:
    Aluminum
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $2,540.99
    Qty in Cart: 0
    Price:
    $2,540.99
    Subtotal:
  • Merritt Aluminum 25 X 25 X 16 Inch 4 Battery Box With Step & Deck Plate

    Merritt Aluminum 25 X 25 X 16 Inch 4 Battery Box With Step & Deck Plate

    MERRITT

    $2,030.99
    Aluminum 25 Inch X 25 Inch X 16 Inch Battery Box With Step & Deck PlateThis high quality 16 X 25 X 25 inch Merritt aluminum battery box has a tread plate cover, a step, and a top deck plate. The box...
    3556
    SKU:
    3556
    Product Type:
    Frame & Chassis
    Material Options:
    Aluminum
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    $2,030.99
    Qty in Cart: 0
    Price:
    $2,030.99
    Subtotal:
  • Merritt Aluminum 24 X 25 X 25 Inch 6 Battery Box With Step & Deck Plate

    Merritt Aluminum 24 X 25 X 25 Inch 6 Battery Box With Step & Deck Plate

    MERRITT

    $2,616.99
    Aluminum 24 Inch X 25 Inch X 25 Inch Battery Box With Step & Deck PlateThis high quality 24 X 25 X 25 inch Merritt aluminum battery box has a tread plate cover, a step, and a top deck plate. The box...
    3563
    SKU:
    3563
    Truck Class:
    Heavy Duty
    Product Type:
    Frame & Chassis
    Material Options:
    Aluminum
    Make:
    Universal Items
    $2,616.99
    Qty in Cart: 0
    Price:
    $2,616.99
    Subtotal:
  • Merritt Aluminum 24.43 X 20.25 X 25.25 Inch 6 Battery Box Without Step & Deck Plate

    Merritt Aluminum 24.43 X 20.25 X 25.25 Inch 6 Battery Box Without Step & Deck Plate

    MERRITT

    $1,964.99
    Diamond Plate Aluminum Battery Box Without Step & Deck PlateThis high quality 24.43 X 20.25 X 25.25 inch Merritt aluminum battery box has a tread plate cover and does not have a step or top deck...
    3514
    SKU:
    3514
    Truck Class:
    Heavy Duty
    Product Type:
    Frame & Chassis
    Material Options:
    Aluminum
    Make:
    Universal Items
    $1,964.99
    Qty in Cart: 0
    Price:
    $1,964.99
    Subtotal:
  • Merritt Aluminum 18 X 28.875 X 30.125 Inch 6 Battery Box With Steps

    Merritt Aluminum 18 X 28.875 X 30.125 Inch 6 Battery Box With Steps

    MERRITT

    $1,470.99
    Aluminum 18 Inch X 28.875 Inch X 30.125 Inch Battery Box With StepsThis high quality 18 X 28.875 X 30.125 inch Merritt aluminum battery box has a tread plate cover and a step, but not a top deck...
    490
    SKU:
    490
    Material Options:
    Aluminum
    Truck Class:
    Heavy Duty
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $1,470.99
    Qty in Cart: 0
    Price:
    $1,470.99
    Subtotal:
  • Merritt Aluminum 12 X 20 X 16 Inch 2 Battery Box & Deck Plate

    Merritt Aluminum 12 X 20 X 16 Inch 2 Battery Box & Deck Plate

    MERRITT

    $938.99
    Aluminum 12 Inch X 20 Inch 16 Inch Battery Box Without Step & Deck PlateThis strong and well engineered battery box is made out of a light weight aluminum alloy that is made to last. Its security...
    3521
    SKU:
    3521
    Material Options:
    Aluminum
    Truck Class:
    Heavy Duty
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $938.99
    Qty in Cart: 0
    Price:
    $938.99
    Subtotal:
  • Merritt Aluminum In-Frame 4 Battery Box 12 X 23 X 27 Inch W/ Hinged Tread Plate Door

    Merritt Aluminum In-Frame 4 Battery Box 12 X 23 X 27 Inch W/ Hinged Tread Plate Door

    MERRITT

    $1,333.99
    Aluminum In-Frame 4 Battery Box 12 X 23 X 27 Inch W/ Hinged Tread Plate DoorThis high quality 12 X 23 X 27 inch Merritt aluminum battery box has a hinged tread plate door and does not have a step...
    258
    SKU:
    258
    Truck Class:
    Heavy Duty
    Material Options:
    Aluminum
    Make:
    Universal Items
    Position:
    Kit Full
    Length Options:
    27 Inch
    Height Options:
    12 Inch
    Width Options:
    23 Inch
    Type Options:
    Flush Mount
    Style Options:
    In Frame
    Product Type:
    Toolboxes
    $1,333.99
    Qty in Cart: 0
    Price:
    $1,333.99
    Subtotal:
  • Merritt Aluminum 12 X 23 X 13.33 Inch In-Frame Battery Box

    Merritt Aluminum 12 X 23 X 13.33 Inch In-Frame Battery Box

    MERRITT

    $1,164.99
    Aluminum 12 Inch X 23 Inch X 13.33 Inch In Frame Battery BoxWe offer aftermarket Merritt aluminum 2 battery boxes that features hinged tread plate doors. This battery box comes with battery hold...
    259
    SKU:
    259
    Material Options:
    Aluminum
    Truck Class:
    Heavy Duty
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $1,164.99
    Qty in Cart: 0
    Price:
    $1,164.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Stainless Steel Dome Hubcap With 6 1 Inch Notched In Lip (Set Of 4)

    Stainless Steel Dome Hubcap With 6 1 Inch Notched In Lip (Set Of 4)

    GRAND GENERAL

    $52.99
    4 Stainless Steel Dome Hubcaps With NotchesThis standard front dome shaped Hubcap is made of durable stainless steel. It has a 1 inch lip, 6 uneven notches and 6 clips. This Hubcap is capable of...
    09-2003034K04
    SKU:
    09-2003034K04
    Material Options:
    Stainless Steel
    Truck Class:
    Heavy Duty
    Product Type:
    Wheels
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $52.99
    Qty in Cart: 0
    Price:
    $52.99
    Subtotal:
  • FREE SHIPPING OVER $249
    17 Diode Amber LED Square Cab Light W/ Clear Lens & Reflector - 5 Pack

    17 Diode Amber LED Square Cab Light W/ Clear Lens & Reflector - 5 Pack

    UNITED PACIFIC

    $139.99
    5 Amber LED Clear Lens Cab Lights* High Quality Cab Light* Made Of Polycarbonate Lens* With Reflective Chrome Inner Housing* Fits Existing Grakon 5000 Style Light Housing* Completely Sealed In Epoxy...
    09-16080615
    SKU:
    09-16080615
    Length Options:
    5 Inch
    Material Options:
    Plastic/Poly
    Shape Options:
    Square
    Truck Class:
    Heavy Duty
    Color:
    Amber/Clear
    Product Type:
    Lighting
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $139.99
    Qty in Cart: 0
    Price:
    $139.99
    Subtotal:
  • 1 1/2 X 3 Inch Chrome Pointed Nut Cover, Push On - 60 Pack

    1 1/2 X 3 Inch Chrome Pointed Nut Cover, Push On - 60 Pack

    UNITED PACIFIC

    $94.99
    Chrome Plated Plastic Push On Pointed Top Nut Covers* High Quality Nut Covers* Chrome-Plated Plastic* 1-1/2 Inch X 3 Inch* Pointed * Push On Style* With Triple Chrome Plating Process* Designed To...
    09-20200118
    SKU:
    09-20200118
    Product Type:
    Wheels
    Finish Options:
    Chrome-Plated
    Material Options:
    Plastic/Poly
    Truck Class:
    Universal
    Make:
    Universal Items
    $94.99
    Qty in Cart: 0
    Price:
    $94.99
    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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