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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
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • 3/8 X 1/2 Inch Brass Hose Coupling W/ Spring Replaces E8592

    3/8 X 1/2 Inch Brass Hose Coupling W/ Spring Replaces E8592

    AUTOMANN USA

    $8.82
    3/8 X 1/2 Inch Hose Coupling W/ Spring* High Quality Hose Coupling* Fitting Type: Air Brake Hose* Connection: Hose Inner Diameter To Male NPT* Made Of Brass* 3/8 Inch Inner Diameter Hose End* 1/2...
    09-05170176
    SKU:
    09-05170176
    Product Type:
    Air, Electrical, & Safety
    Material Options:
    Brass
    Make:
    Universal Items
    $8.82
    Qty in Cart: 0
    Price:
    $8.82
    Subtotal:
  • 15.00 X 4.00 Inch 10 Hole Brake Drum Replaces 10081079, 123421, 3721X, 17QJ4106, 123366, 85123366002, 85123421002, 61527, 61527B

    15.00 X 4.00 Inch 10 Hole Brake Drum Replaces 10081079, 123421, 3721X, 17QJ4106, 123366, 85123366002, 85123421002, 61527, 61527B

    AFTERMARKET

    $303.99
    10 Hole 15.00 X 4.00 Inch Brake Drum* High Quality Brake Drum* Balanced To 20 Inch - Oz* (10) 1 Inch Bolt Holes* For Brake SuRFace Diameter 15 Inch X 4 Inch* 8.78 Inch Overall Width* 4.78 Inch Brake...
    09-05170171
    SKU:
    09-05170171
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $303.99
    Qty in Cart: 0
    Price:
    $303.99
    Subtotal:
  • 16.50 X 7.00 Inch 10 Hole Brake Drum Replaces 12386614, 3122948002, 85122948002, 66865, 66865B

    16.50 X 7.00 Inch 10 Hole Brake Drum Replaces 12386614, 3122948002, 85122948002, 66865, 66865B

    AFTERMARKET

    $500.99
    10 Hole 16.50 X 7.00 Inch Brake Drum* High Quality Brake Drum* Balanced To 20 Inch - Oz* (10) 0.810 Inch Bolt Holes* For Brake SuRFace Diameter 16.5 Inch X 7 Inch* 10.310 Inch Overall Width* 7.50...
    09-05170167
    SKU:
    09-05170167
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $500.99
    Qty in Cart: 0
    Price:
    $500.99
    Subtotal:
  • 16.50 X 6.00 Inch 20K Brake Shoe Kit Replaces 819706, R700025, 314146, R507094, 818278, E10197, E5479A, R567503, 19-915

    16.50 X 6.00 Inch 20K Brake Shoe Kit Replaces 819706, R700025, 314146, R507094, 818278, E10197, E5479A, R567503, 19-915

    AFTERMARKET

    $145.99
    16.50 X 6.00 Inch Eaton ES2 Type 20K Brake Shoe Kit* High Quality Brake Shoe Box Kit* Eaton ES2 Type* Open Anchor End* Open Roller End* Double Web* 20K Lbs Value* Kit Includes:  - (2) Unlined Brake...
    09-05170169
    SKU:
    09-05170169
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $145.99
    Qty in Cart: 0
    Price:
    $145.99
    Subtotal:
  • 1/2 X 1/2 Inch Brass Hose Coupling W/ Spring Replaces E8599

    1/2 X 1/2 Inch Brass Hose Coupling W/ Spring Replaces E8599

    AUTOMANN USA

    $17.43
    1/2 X 1/2 Inch Hose Coupling W/ SpringDepend on the 1/2 X 1/2 Inch Brass Hose Coupling with Spring for secure air brake connections, designed to replace E8599. Engineered for air brake hoses, this...
    09-05170161
    SKU:
    09-05170161
    Material Options:
    Brass
    Product Type:
    Air, Electrical, & Safety
    Diameter Options:
    1/2 Inch
    Make:
    Universal Items
    $17.43
    Qty in Cart: 0
    Price:
    $17.43
    Subtotal:
  • 16.50 X 6.00 Inch 23K Brake Shoe Kit Replaces 819706, R700025, 314146, R507094, 818278, E10197, E5479A, R567503, 19-915

    16.50 X 6.00 Inch 23K Brake Shoe Kit Replaces 819706, R700025, 314146, R507094, 818278, E10197, E5479A, R567503, 19-915

    AFTERMARKET

    $148.99
    16.50 X 6.00 Inch Eaton ES2 Type 23K Brake Shoe Kit* High Quality Brake Shoe Box Kit* Eaton ES2 Type* Open Anchor End* Open Roller End* Double Web* 23K Lbs Value* Kit Includes:  - (2) Unlined Brake...
    09-05170170
    SKU:
    09-05170170
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $148.99
    Qty in Cart: 0
    Price:
    $148.99
    Subtotal:
  • 3/8 X 3/8 Inch Brass Hose Coupling W/ Spring Replaces E8596

    3/8 X 3/8 Inch Brass Hose Coupling W/ Spring Replaces E8596

    AUTOMANN USA

    $9.13
    3/8 X 3/8 Inch Hose Coupling W/ Spring* High Quality Hose Coupling* Fitting Type: Air Brake Hose* Connection: Hose Inner Diameter To Male NPT* Spring Attached To Male Connector End* Made Of Brass*...
    09-05170158
    SKU:
    09-05170158
    Diameter Options:
    3/8 Inch
    Material Options:
    Brass
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    $9.13
    Qty in Cart: 0
    Price:
    $9.13
    Subtotal:
  • 3/8 X 1/2 Inch Brass Hose Coupling W/ Spring Replaces E8597

    3/8 X 1/2 Inch Brass Hose Coupling W/ Spring Replaces E8597

    AUTOMANN USA

    $9.45
    3/8 X 1/2 Inch Hose Coupling W/ Spring* High Quality Hose Coupling* Fitting Type: Air Brake Hose* Connection: Hose Inner Diameter To Male NPT* Spring Attached To Male Connector End* Made Of Brass*...
    09-05170159
    SKU:
    09-05170159
    Product Type:
    Air, Electrical, & Safety
    Material Options:
    Brass
    Make:
    Universal Items
    $9.45
    Qty in Cart: 0
    Price:
    $9.45
    Subtotal:
  • 3/8 X 1/4 Inch Brass Hose Coupling W/ Spring Replaces E8595

    3/8 X 1/4 Inch Brass Hose Coupling W/ Spring Replaces E8595

    AUTOMANN USA

    $8.27
    3/8 X 1/4 Inch Hose Coupling W/ Spring* High Quality Hose Coupling* Fitting Type: Air Brake Hose* Connection: Hose Inner Diameter To Male NPT* Spring Attached To Male Connector End* Made Of Brass*...
    09-05170157
    SKU:
    09-05170157
    Material Options:
    Brass
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    $8.27
    Qty in Cart: 0
    Price:
    $8.27
    Subtotal:
  • 1/2 X 3/8 Inch Brass Hose Coupling W/ Spring Replaces E8598

    1/2 X 3/8 Inch Brass Hose Coupling W/ Spring Replaces E8598

    AUTOMANN USA

    $11.93
    1/2 X 3/8 Inch Hose Coupling W/ Spring* High Quality Hose Coupling* Fitting Type: Air Brake Hose* Connection: Hose Inner Diameter To Male NPT* Spring Attached To Male Connector End* Made Of Brass*...
    09-05170160
    SKU:
    09-05170160
    Product Type:
    Air, Electrical, & Safety
    Material Options:
    Brass
    Make:
    Universal Items
    $11.93
    Qty in Cart: 0
    Price:
    $11.93
    Subtotal:
  • 3/8 X 3/8 Inch Brass Coupling Body Replaces E8586

    3/8 X 3/8 Inch Brass Coupling Body Replaces E8586

    AUTOMANN USA

    $4.48
    3/8 X 3/8 Inch Coupling Body* High Quality Hose Coupling* Fitting Type: Air Brake Hose* Connection: Hose Inner Diameter To Male NPT* Made Of Brass* 3/8 Inch Inner Diameter Hose End* 3/8 Inch Outer...
    09-05170136
    SKU:
    09-05170136
    Product Type:
    Air, Electrical, & Safety
    Diameter Options:
    3/8 Inch
    Material Options:
    Brass
    Make:
    Universal Items
    $4.48
    Qty in Cart: 0
    Price:
    $4.48
    Subtotal:
  • 1/2 X 3/8 Inch Brass Coupling Body Replaces E8588

    1/2 X 3/8 Inch Brass Coupling Body Replaces E8588

    AUTOMANN USA

    $8.47
    1/2 X 3/8 Inch Coupling Body* High Quality Hose Coupling* Fitting Type: Air Brake Hose* Connection: Hose Inner Diameter To Male NPT* Made Of Brass* 1/2 Inch Inner Diameter Hose End* 3/8 Inch Outer...
    09-05170145
    SKU:
    09-05170145
    Product Type:
    Air, Electrical, & Safety
    Material Options:
    Brass
    Make:
    Universal Items
    $8.47
    Qty in Cart: 0
    Price:
    $8.47
    Subtotal:
  • 3/8 X 1/4 Inch Brass Coupling Body Replaces E8585

    3/8 X 1/4 Inch Brass Coupling Body Replaces E8585

    AUTOMANN USA

    $5.09
    3/8 X 1/4 Inch Coupling Body* High Quality Hose Coupling* Fitting Type: Air Brake Hose* Connection: Hose Inner Diameter To Male NPT* Made Of Brass* 3/8 Inch Inner Diameter Hose End* 1/4 Inch Outer...
    09-05170135
    SKU:
    09-05170135
    Material Options:
    Brass
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    $5.09
    Qty in Cart: 0
    Price:
    $5.09
    Subtotal:
  • 1/2 X 1/2 Inch Brass Coupling Body Replaces E8589

    1/2 X 1/2 Inch Brass Coupling Body Replaces E8589

    AUTOMANN USA

    $5.94
    1/2 X 1/2 Inch Coupling Body* High Quality Hose Coupling* Fitting Type: Air Brake Hose* Connection: Hose Inner Diameter To Male NPT* Made Of Brass* 1/2 Inch Inner Diameter Hose End* 1/2 Inch Outer...
    09-05170146
    SKU:
    09-05170146
    Material Options:
    Brass
    Product Type:
    Air, Electrical, & Safety
    Diameter Options:
    1/2 Inch
    Make:
    Universal Items
    $5.94
    Qty in Cart: 0
    Price:
    $5.94
    Subtotal:
  • 5.5 Automatic Slack Adjuster Replaces 40920046, 40020240, ZZ40020240, 539640020240, M808005

    5.5 Automatic Slack Adjuster Replaces 40920046, 40020240, ZZ40020240, 539640020240, M808005

    AFTERMARKET

    $154.99
    5.5 Haldex Self- Setting Type Automatic Slack AdjusterKeep your brakes perfectly calibrated with the 5.5 Automatic Slack Adjuster, a self-setting Haldex slack type adjuster engineered for accuracy...
    09-05170121
    SKU:
    09-05170121
    Product Type:
    Frame & Chassis
    Diameter Options:
    1 1/2 Inch
    Make:
    Universal Items
    $154.99
    Qty in Cart: 0
    Price:
    $154.99
    Subtotal:
  • 15.00 X 4.00 Inch 8 Hole Brake Drum Replaces 107902, 3741X, 3741, 2009641C1, 65543, 65543B, 65543F

    15.00 X 4.00 Inch 8 Hole Brake Drum Replaces 107902, 3741X, 3741, 2009641C1, 65543, 65543B, 65543F

    AFTERMARKET

    $379.99
    8 Hole 15.00 X 4.00 Inch Inch Brake Drum* High Quality Brake Drum* Balanced To 20 Inch - Oz* (8) 1 Inch Bolt Holes* For Brake Surface Diameter 15 Inch X 4 Inch* 9.04 Inch Overall Width* 4.75 Inch...
    09-05170122
    SKU:
    09-05170122
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $379.99
    Qty in Cart: 0
    Price:
    $379.99
    Subtotal:
  • 3/8 X 1/2 Inch Brass Coupling Body Replaces E8587

    3/8 X 1/2 Inch Brass Coupling Body Replaces E8587

    AUTOMANN USA

    $4.80
    3/8 X 1/2 Inch Coupling Body* High Quality Hose Coupling* Fitting Type: Air Brake Hose* Connection: Hose Inner Diameter To Male NPT* Made Of Brass* 3/8 Inch Inner Diameter Hose End* 1/2 Inch Outer...
    09-05170134
    SKU:
    09-05170134
    Material Options:
    Brass
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    $4.80
    Qty in Cart: 0
    Price:
    $4.80
    Subtotal:
  • Holland 5th Wheel Rebuild Kit Replaces RK17AL

    Holland 5th Wheel Rebuild Kit Replaces RK17AL

    AFTERMARKET

    $1,057.99
    5th Wheel Rebuild KitRestore the performance and reliability of your fifth wheel with the Holland 5th Wheel Rebuild Kit Replaces RK17AL, designed for Holland Neway FW17 5th wheels. This high-quality...
    09-0511071
    SKU:
    09-0511071
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $1,057.99
    Qty in Cart: 0
    Price:
    $1,057.99
    Subtotal:
  • Black 4 Trumpet Mini Train Horn

    Black 4 Trumpet Mini Train Horn

    UNITED PACIFIC

    $93.99
    4 Trumpet Mini Train Horn- BlackMake safety and attention a priority with the Black 4 Trumpet Mini Train Horn, designed for truckers and drivers who need superior sound. The kit includes four durable...
    09-0513137
    SKU:
    09-0513137
    Color:
    Black
    Product Type:
    Frame & Chassis
    Height Options:
    6 Inch
    Length Options:
    11 3/4 Inch
    Rating:
    150 PSI
    Width Options:
    5 1/4 Inch
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $93.99
    Qty in Cart: 0
    Price:
    $93.99
    Subtotal:
  • Wear Ring Kit Replaces KITRING3000

    Wear Ring Kit Replaces KITRING3000

    AFTERMARKET

    $271.99
    3000 Series Wear Ring KitKeep your hydraulic systems in top condition with the Wear Ring Kit Replaces KITRING3000, designed for precise performance and extended durability. Included hardware ensures...
    09-05110030
    SKU:
    09-05110030
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $271.99
    Qty in Cart: 0
    Price:
    $271.99
    Subtotal:
  • Total: items /

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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