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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
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  • Price
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  • 5 X 48 Inch Stainless Steel Flex Hose By BESTfit

    5 X 48 Inch Stainless Steel Flex Hose By BESTfit

    BESTFIT TRUCK PARTS

    $149.99
    BESTfit 304 Stainless Steel 5 X 48 Inch Flex Hose* High Quality Flex Hose* Sf Series - Non Magnetic* Interlocked Profile* 304 Stainless Steel* 48 Inch Length* 5 Inch Diameter* Sold Individually*...
    GR-SF-548
    SKU:
    GR-SF-548
    Material Options:
    Stainless Steel
    Diameter Options:
    5 Inch
    Product Type:
    Exhaust
    Make:
    Universal Items
    $149.99
    Qty in Cart: 0
    Price:
    $149.99
    Subtotal:
  • 7-5 X 54 Inch Chrome Curve Turn Exhaust Stack By BESTfit

    7-5 X 54 Inch Chrome Curve Turn Exhaust Stack By BESTfit

    BESTFIT TRUCK PARTS

    $717.99
    BESTfit Chrome 7-5 X 54 Inch Curve Turn Exhaust Stack* High Quality Exhaust Stack* Curved Top Style* Ceramic Lined To Help Prevent Chrome DISColoration* Chrome Plated Finish* 54 Inch Height* 7 Inch...
    GR-SK7-54SBC-L5CL
    SKU:
    GR-SK7-54SBC-L5CL
    Height Options:
    54 Inch
    Style Options:
    Paccar
    Material Options:
    Steel
    Finish Options:
    Chrome-Plated
    Product Type:
    Exhaust
    Make:
    Universal Items
    Diameter Options:
    7 To 5 Inch
    $717.99
    Qty in Cart: 0
    Price:
    $717.99
    Subtotal:
  • 7 X 96 Inch Chrome Miter Exhaust Stack By BESTfit

    7 X 96 Inch Chrome Miter Exhaust Stack By BESTfit

    BESTFIT TRUCK PARTS

    $877.99
    BESTfit Chrome 7 X 96 Inch Miter Exhaust Stack* High Quality Exhaust Stack* Miter Top Style* Chrome Plated Finish* 96 Inch Height* 7 Inch Inner Diameter* Sold Individually* Warranty On Exhaust Stacks...
    GR-P7-96SBC
    SKU:
    GR-P7-96SBC
    Diameter Options:
    7 Inch
    Height Options:
    96 Inch
    Product Type:
    Exhaust
    Finish Options:
    Chrome-Plated
    Style Options:
    Miter Cut
    Make:
    Universal Items
    Material Options:
    Steel
    $877.99
    Qty in Cart: 0
    Price:
    $877.99
    Subtotal:
  • Knoedler Black Synthetic Leather Mid Back Air Chief Low Rider Seat W/ Arms

    Knoedler Black Synthetic Leather Mid Back Air Chief Low Rider Seat W/ Arms

    KNOEDLER

    $2,213.99
    Black Synthetic Leather Mid Back Air Chief Low Rider Seat W/ Arms* High Quality Mechanical Seat* Standard Suspension* Air Chief Model* Extreme Low Rider (Mid Back With Headrest)* FAS System (4X...
    98SCL62MB0S01
    SKU:
    98SCL62MB0S01
    Product Type:
    Seats
    Height Options:
    44 Inch
    Width Options:
    28 Inch
    Material Options:
    Synthetic Leather
    Color:
    Black
    Style Options:
    Mid Back
    Make:
    Universal Items
    $2,213.99
    Qty in Cart: 0
    Price:
    $2,213.99
    Subtotal:
  • 5.75 Inch Stainless Steel Headlight Visor

    5.75 Inch Stainless Steel Headlight Visor

    UNITED PACIFIC

    $4.98
    304 Stainless Steel Headlight Visor- 5.75 Inch* High Quality Headlight Visor* Polished 304 Stainless Steel* 5-3/4 Inch Diameter* Sold Individually* Warranty On Headlight Visors Against Defects In...
    29-160600418
    SKU:
    29-160600418
    Finish Options:
    Polished
    Product Type:
    Lighting
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    Diameter Options:
    5 3/4 Inch
    Ready To Ship:
    Yes
    $4.98
    Qty in Cart: 0
    Price:
    $4.98
    Subtotal:
  • Knoedler Black Synthetic Leather Mid Back Air Chief Low Rider Seat W/ Headrest, Arms & Bellow

    Knoedler Black Synthetic Leather Mid Back Air Chief Low Rider Seat W/ Headrest, Arms & Bellow

    KNOEDLER

    $1,639.99
    Black Synthetic Leather Mid Back Air Chief Low Rider Seat W/ Headrest, Arms & BellowImprove driver comfort and cabin ergonomics with the Knoedler Black Synthetic Leather Mid Back Air Chief Low Rider...
    98LRL82MH0S01BRH
    SKU:
    98LRL82MH0S01BRH
    Color:
    Black
    Material Options:
    Synthetic Leather
    Product Type:
    Seats
    Make:
    Universal Items
    Style Options:
    Mid Back
    $1,639.99
    Qty in Cart: 0
    Price:
    $1,639.99
    Subtotal:
  • FAS Lumbar 3 Switch Air Valve For Knoedler Seats

    FAS Lumbar 3 Switch Air Valve For Knoedler Seats

    KNOEDLER

    $124.99
    FAS Lumbar 3 Switch Air Valve* High Quality Air Valve* FAS Lumbar 3 Switch* For Knoedler Seats* Sold Individually* Warranty On Air Valves Against Defects In Workmanship & Material From Date Of...
    730071000
    SKU:
    730071000
    Product Type:
    Seats
    Make:
    Universal Items
    $124.99
    Qty in Cart: 0
    Price:
    $124.99
    Subtotal:
  • Stainless Steel Oil Fill Tube For CAT C15 Engines

    Stainless Steel Oil Fill Tube For CAT C15 Engines

    SH TUBE

    $166.99
    Oil Fill Tube For CAT C15 Engines* High Quality Cat Oil Fill Tube* Larger Than Factory Size* Fits Most C15 Engines* Stainless Steel* Sold Individually* Warranty On Cat Oil Fill Tubes Against Defects...
    29-07200025
    SKU:
    29-07200025
    Product Type:
    Engine Parts
    Style Options:
    Caterpillar
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    $166.99
    Qty in Cart: 0
    Price:
    $166.99
    Subtotal:
  • Power Steering Pump For Cummins ISX/13.2K Engines Replaces PS251615R103

    Power Steering Pump For Cummins ISX/13.2K Engines Replaces PS251615R103

    AFTERMARKET

    $570.99
    PS Type Power Steering Pump For Cummins ISX EnginesKeep your Cummins ISX/13.2K truck steering smooth and reliable with this TRW-PS Type Power Steering Pump. Delivering 25 CC displacement, 4.23 GPM...
    29-07120044
    SKU:
    29-07120044
    Style Options:
    Cummins
    Product Type:
    Engine Parts
    Material Options:
    Aluminum
    Make:
    Universal Items
    $570.99
    Qty in Cart: 0
    Price:
    $570.99
    Subtotal:
  • Power Steering Pump Replaces PS221613L103

    Power Steering Pump Replaces PS221613L103

    AFTERMARKET

    $424.99
    LUK Type Power Steering Pump- Left Hand Rotation* High Quality Power Steering Pump* LUK Type* 22 CC Displacement* 4.23 GPM* 1885 PSI* LH CCW Rotation* 11 Tooth Gear* (1) 1/16 - 12 UN-2B Inlet Port...
    29-0731001
    SKU:
    29-0731001
    Product Type:
    Engine Parts
    Material Options:
    Aluminum
    Make:
    Universal Items
    $424.99
    Qty in Cart: 0
    Price:
    $424.99
    Subtotal:
  • Power Steering Pump For Caterpillar 3126 & 3116, 13.2K & 14.6K Engines

    Power Steering Pump For Caterpillar 3126 & 3116, 13.2K & 14.6K Engines

    AFTERMARKET

    $570.99
    PS Type Power Steering Pump Replaces PS251615L113Maximize steering efficiency on Caterpillar 3126 and 3116 engines with the TRW-PS Power Steering Pump, designed for 13.2K and 14.6K engine models...
    29-07120045
    SKU:
    29-07120045
    Product Type:
    Engine Parts
    Material Options:
    Aluminum
    Make:
    Universal Items
    $570.99
    Qty in Cart: 0
    Price:
    $570.99
    Subtotal:
  • Oil Pan Plug Single Use Replaces 1982821PE, 233.451, 233451, 1853604PE For PACCAR MX11/MX13

    Oil Pan Plug Single Use Replaces 1982821PE, 233.451, 233451, 1853604PE For PACCAR MX11/MX13

    AUTOMANN USA

    $13.61
    Oil Pan Plug For PACCAR MX11 & MX13 EnginesMaintain a leak-free and reliable engine with this high-quality Oil Pan Plug for PACCAR MX11 and MX13 engines. Designed to replace 1982821PE, 233.451,...
    29-07200023
    SKU:
    29-07200023
    Product Type:
    Engine Parts
    Style Options:
    Paccar
    Color:
    Black
    Material Options:
    Plastic/Poly
    Make:
    Universal Items
    $13.61
    Qty in Cart: 0
    Price:
    $13.61
    Subtotal:
  • Power Steering Pump Replaces PS2216-15R102

    Power Steering Pump Replaces PS2216-15R102

    AFTERMARKET

    $462.99
    PS Type Power Steering Pump Replaces PS2216-15R102Restore reliable steering control in your truck with this TRW-PS Type Power Steering Pump, built to replace PS2216-15R102. Featuring 22 CC...
    29-07120036
    SKU:
    29-07120036
    Product Type:
    Engine Parts
    Material Options:
    Aluminum
    Make:
    Universal Items
    $462.99
    Qty in Cart: 0
    Price:
    $462.99
    Subtotal:
  • Power Steering Pump Replaces PS282815L116

    Power Steering Pump Replaces PS282815L116

    AFTERMARKET

    $508.99
    PS Type Power Steering Pump Replaces PS282815L116Take control of your Freightliner truck's steering with this TRW-PS Type Power Steering Pump, designed to replace PS282815L116. With 28 CC...
    29-07120041
    SKU:
    29-07120041
    Material Options:
    Aluminum
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $508.99
    Qty in Cart: 0
    Price:
    $508.99
    Subtotal:
  • Power Steering Pump Replaces EV221609L101, EV221609L10101, 137114

    Power Steering Pump Replaces EV221609L101, EV221609L10101, 137114

    AFTERMARKET

    $458.99
    EV Type Power Steering PumpReplaces EV221609L101, EV221609L10101, 137114Keep your truck's steering system operating at peak performance with this TRW-EV Type Power Steering Pump. Replacing...
    29-07120037
    SKU:
    29-07120037
    Material Options:
    Aluminum
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $458.99
    Qty in Cart: 0
    Price:
    $458.99
    Subtotal:
  • Water Pump For Detroit Diesel 50 Series 8.5L Engines & Detroit Diesel 60 Series 11.1L & 12.7L Engines

    Water Pump For Detroit Diesel 50 Series 8.5L Engines & Detroit Diesel 60 Series 11.1L & 12.7L Engines

    AFTERMARKET

    $331.99
    Water Pump Replaces 23526039. 46002HDProtect your Detroit Diesel engine from overheating with this high-performance water pump, built for Series 50 8.5L and Series 60 11.1L & 12.7L engines. Featuring...
    29-07120039
    SKU:
    29-07120039
    Material Options:
    Cast Iron
    Style Options:
    Detroit
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $331.99
    Qty in Cart: 0
    Price:
    $331.99
    Subtotal:
  • Power Steering Pump Replaces RP221615A. RP221615AX. PS251615R114

    Power Steering Pump Replaces RP221615A. RP221615AX. PS251615R114

    AFTERMARKET

    $479.99
    Power Steering Pump- PS Type* High Quality Power Steering Pump* TRW-PS Type* 25 CC Displacement* 4.23 GPM* 2175 PSI* RH CW Rotation* 11 Tooth* 18 Degree Offset* (1) 1/16 - 12 UN-2B Inlet Port (Right...
    29-07120027
    SKU:
    29-07120027
    Product Type:
    Engine Parts
    Material Options:
    Aluminum
    Make:
    Universal Items
    $479.99
    Qty in Cart: 0
    Price:
    $479.99
    Subtotal:
  • Power Steering Pump- PS Type Replaces RP221601. RP221601X. PS221615R103

    Power Steering Pump- PS Type Replaces RP221601. RP221601X. PS221615R103

    AFTERMARKET

    $479.99
    PS Type Power Steering PumpMaintain full steering control with this TRW-PS Type Power Steering Pump, engineered for trucks needing RP221601, RP221601X, or PS221615R103 replacements. With 22 CC...
    29-07120029
    SKU:
    29-07120029
    Material Options:
    Aluminum
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $479.99
    Qty in Cart: 0
    Price:
    $479.99
    Subtotal:
  • 2 Piece Clutch Brake Replaces 127200X, 1091467

    2 Piece Clutch Brake Replaces 127200X, 1091467

    AUTOMANN USA

    $40.80
    2 Piece Clutch Brake- 2 Inch Torque Limit* High Quality Clutch Brake* 2 Inch Torque Limit* 2 Pieces* 2.00 Inch Inner Diameter* 4.50 Inch Outer Diameter* 0.38 Inch Width* Sold Individually* Warranty...
    29-07050016
    SKU:
    29-07050016
    Diameter Options:
    4 1/2 Inch
    Product Type:
    Engine Parts
    Width Options:
    1/4 Inch
    Make:
    Universal Items
    $40.80
    Qty in Cart: 0
    Price:
    $40.80
    Subtotal:
  • Power Steering Pump For Kenworth, Peterbilt

    Power Steering Pump For Kenworth, Peterbilt

    AFTERMARKET

    $468.99
    EV Type Power Steering Pump Replaces RP221607. PEV2216-15R101. EV221615R101Maintain optimal steering control on your Kenworth or Peterbilt with this high-performance Power Steering Pump. Designed for...
    29-07120022
    SKU:
    29-07120022
    Material Options:
    Aluminum
    Product Type:
    Engine Parts
    Make:
    Peterbilt
    Make:
    Kenworth
    $468.99
    Qty in Cart: 0
    Price:
    $468.99
    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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