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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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  • Hogebuilt Rogue Series 80 Inch Stainless Steel Half Fenders

    Hogebuilt Rogue Series 80 Inch Stainless Steel Half Fenders

    HOGEBUILT FENDERS

    $1,127.99 - $1,747.99
    The Hogebuilt Rogue Series 80 Inch Stainless Steel Half Fenders combine rugged strength with custom styling. Available in 304 and 430 stainless steel, these Ultimate Low Rider fenders resist rust,...
    PPR_300296
    SKU:
    PPR_300296
    Length Options:
    80 Inch
    Material Options:
    Stainless Steel
    Product Type:
    Rear Fenders
    Size Options:
    14 Gauge
    Make:
    Universal Items
    Style Options:
    Low Rider Style
    Height Options:
    30 Inch
    Ready To Ship:
    Yes
    $1,127.99 - $1,747.99
    Qty in Cart: 0
    Price:
    $1,127.99 - $1,747.99
    Subtotal:
  • Exhaust Manifold Replaces 3906741, 3932180 For Cummins 6CT/8.3L Engine

    Exhaust Manifold Replaces 3906741, 3932180 For Cummins 6CT/8.3L Engine

    AKMI

    $290.99
    Cummins 6CT/8.3L Exhaust ManifoldMaximize engine efficiency with this dependable Exhaust Manifold engineered for Cummins 6CT and 8.3L engines, replacing 3906741 and 3932180. Designed to withstand...
    29-071200045
    SKU:
    29-071200045
    Product Type:
    Engine Parts
    Style Options:
    Cummins
    Make:
    Universal Items
    $290.99
    Qty in Cart: 0
    Price:
    $290.99
    Subtotal:
  • Exhaust Manifold Replaces 3084656, 4003994 For Cummins M11/ISM

    Exhaust Manifold Replaces 3084656, 4003994 For Cummins M11/ISM

    AKMI

    $561.99
    Cummins M11/ISM Exhaust ManifoldKeep your rig operating smoothly with this durable Exhaust Manifold designed for Cummins M11 and ISM engines, replacing 3084656 and 4003994. Built for high-heat...
    29-071200047
    SKU:
    29-071200047
    Product Type:
    Engine Parts
    Style Options:
    Cummins
    Make:
    Universal Items
    $561.99
    Qty in Cart: 0
    Price:
    $561.99
    Subtotal:
  • Flywheel Replaces 4710303505, 4710306705, 4710306205 For Detroit DD13/DD15 2016-2019

    Flywheel Replaces 4710303505, 4710306705, 4710306205 For Detroit DD13/DD15 2016-2019

    AKMI

    $1,230.99
    150 Teeth Flywheel Fits Models W/ Detroit DD13/DD15 Engine & 17 Inch ClutchKeep your Detroit DD13/DD15 engine performing at its best with this high-quality Flywheel. Compatible with DT12...
    29-070400119
    SKU:
    29-070400119
    Product Type:
    Engine Parts
    Style Options:
    Detroit
    Make:
    Universal Items
    $1,230.99
    Qty in Cart: 0
    Price:
    $1,230.99
    Subtotal:
  • Flywheel Replaces 3693467, 3693468, 3693466 For Cummins X15

    Flywheel Replaces 3693467, 3693468, 3693466 For Cummins X15

    AKMI

    $1,004.99
    Flywheel Fits Models W/ Cummins X15 Engine & 17 Inch ClutchKeep your Cummins X15 running smoothly with this durable Flywheel, engineered for 17-inch clutch systems and Eaton Endurance transmissions...
    29-070400123
    SKU:
    29-070400123
    Product Type:
    Engine Parts
    Style Options:
    Cummins
    Make:
    Universal Items
    $1,004.99
    Qty in Cart: 0
    Price:
    $1,004.99
    Subtotal:
  • Stamped Steel Oil Pan Replaces 4710105113, 4710100113, 4710100213, 4710100513 For Detroit DD13 Engine

    Stamped Steel Oil Pan Replaces 4710105113, 4710100113, 4710100213, 4710100513 For Detroit DD13 Engine

    AKMI

    $1,318.99
    Detroit DD13 Stamped Steel Oil PanProtect vital engine components with this quality Stamped Steel Oil Pan engineered for Detroit DD13 engines, replacing part numbers 4710105113, 4710100113,...
    29-072000027
    SKU:
    29-072000027
    Product Type:
    Engine Parts
    Material Options:
    Steel
    Style Options:
    Detroit
    Make:
    Universal Items
    Color:
    Black
    $1,318.99
    Qty in Cart: 0
    Price:
    $1,318.99
    Subtotal:
  • Turbocharger Replaces 4P2858, OR6956, 7W9568, OR6169 For Caterpillar 3406B

    Turbocharger Replaces 4P2858, OR6956, 7W9568, OR6169 For Caterpillar 3406B

    AKMI

    $2,266.99
    Caterpillar 3406B TurbochargerPower through every mile with this high-performance Turbocharger made to replace 4P2858, OR6956, 7W9568, and OR6169 for Caterpillar 3406B applications. Designed to...
    29-070400124
    SKU:
    29-070400124
    Style Options:
    Caterpillar
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $2,266.99
    Qty in Cart: 0
    Price:
    $2,266.99
    Subtotal:
  • Exhaust Manifold Replaces 3917668, 3929778 For Cummins 6CT/ISC

    Exhaust Manifold Replaces 3917668, 3929778 For Cummins 6CT/ISC

    AKMI

    $290.99
    Cummins 6CT/ISC Exhaust ManifoldSupport smooth engine operation with this quality Exhaust Manifold designed to replace part numbers 3917668 and 3929778 for Cummins 6CT/ISC engines. Engineered for...
    29-071200046
    SKU:
    29-071200046
    Style Options:
    Cummins
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $290.99
    Qty in Cart: 0
    Price:
    $290.99
    Subtotal:
  • Flywheel Replaces 4710301205, 4710303405 For Detroit DD13/DD15 Engine

    Flywheel Replaces 4710301205, 4710303405 For Detroit DD13/DD15 Engine

    AKMI

    $1,153.99
    160 Teeth Flywheel Fits Models W/ Detroit DD13/DD15 Engine & 17 Inch ClutchMaintain peak performance for your 2013-2015 Detroit DD13 or DD15 engine with this premium Flywheel, designed to replace...
    29-070400118
    SKU:
    29-070400118
    Style Options:
    Detroit
    Make:
    Universal Items
    Product Type:
    Engine Parts
    $1,153.99
    Qty in Cart: 0
    Price:
    $1,153.99
    Subtotal:
  • Camshaft Replaces 3680780, 3412284, 4059198, 4059333, 4298627 For Cummins ISX Engine

    Camshaft Replaces 3680780, 3412284, 4059198, 4059333, 4298627 For Cummins ISX Engine

    AKMI

    $1,957.99
    Cummins ISX CamshaftEnsure long-lasting reliability for your Cummins ISX engine with this forged billet steel Camshaft. Designed to replace 3680780, 3412284, 4059198, 4059333, and 4298627, it handles...
    29-070400120
    SKU:
    29-070400120
    Product Type:
    Engine Parts
    Style Options:
    Cummins
    Material Options:
    Billet Steel
    Make:
    Universal Items
    $1,957.99
    Qty in Cart: 0
    Price:
    $1,957.99
    Subtotal:
  • Roadworks Stainless Steel Post Mount Darwin Untie Visor W/ 10 Amber Button Lights For Peterbilt 2005 & Newer

    Roadworks Stainless Steel Post Mount Darwin Untie Visor W/ 10 Amber Button Lights For Peterbilt 2005 & Newer

    ROADWORKS

    $748.99
    Choose Option(s) to see description.Fitment* Fits Peterbilt 330 2005 thru 2005* Fits Peterbilt 335 2005 thru 2010* Fits Peterbilt 337 2011 thru 2022* Fits Peterbilt 357 2005 thru 2007* Fits Peterbilt...
    PPR_300275
    SKU:
    PPR_300275
    Location:
    Made In USA
    Light Options:
    With Lights
    Material Options:
    Stainless Steel
    Color:
    Amber
    Style Options:
    Un-Tie
    Product Type:
    Exterior
    Make:
    Peterbilt
    Position:
    Kit Full
    Type Options:
    Post Mount
    $748.99
    Qty in Cart: 0
    Price:
    $748.99
    Subtotal:
  • Roadworks Post Mount Darwin Drop Visor W/10 Amber LEDs / Amber Lens For Peterbilt 2005 & Newer

    Roadworks Post Mount Darwin Drop Visor W/10 Amber LEDs / Amber Lens For Peterbilt 2005 & Newer

    ROADWORKS

    $726.99 - $760.99
    Choose Option(s) to see description.Fitment* Fits Peterbilt 330 2005 thru 2005* Fits Peterbilt 335 2005 thru 2010* Fits Peterbilt 337 2011 thru 2022* Fits Peterbilt 357 2005 thru 2007* Fits Peterbilt...
    PPR_300274
    SKU:
    PPR_300274
    Product Type:
    Exterior
    Material Options:
    Stainless Steel
    Light Options:
    With Lights
    Color:
    Amber
    Style Options:
    Straight Drop
    Position:
    Kit Full
    Location:
    Made In USA
    Type Options:
    Post Mount
    Make:
    Peterbilt
    Style Options:
    Darwin Drop
    $726.99 - $760.99
    Qty in Cart: 0
    Price:
    $726.99 - $760.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Red Mini Button Style LED 1.2 Inch Clearance & Marker Light W/ Red Lens

    Red Mini Button Style LED 1.2 Inch Clearance & Marker Light W/ Red Lens

    TRUX ACCESSORIES

    $9.71
    Red Mini Button Style LED 1.2 Inch Marker Light W/ Chrome Plated Bezel & 2 Male BulletsGet a fresh, new look for your truck with this red LED marker light from Trux Accessories. 4 State Trucks can...
    09-1601060248
    SKU:
    09-1601060248
    Finish Options:
    Chrome-Plated
    Truck Class:
    Universal
    Diameter Options:
    3/4 Inch
    Material Options:
    Plastic/Poly
    Color:
    Red
    Shape Options:
    Round
    Product Type:
    Lighting
    Make:
    Universal Items
    $9.71
    Qty in Cart: 0
    Price:
    $9.71
    Subtotal:
  • FREE SHIPPING OVER $249
    0.75 Inch Red LED Clear Lens Mini Button Marker Light W/ 1 Diode

    0.75 Inch Red LED Clear Lens Mini Button Marker Light W/ 1 Diode

    TRUX ACCESSORIES

    $12.47
    LED Mini Button Marker Light Red W/ 1 Diode4 State Trucks offers this mini round marker light by Trux Accessories with 1 red diode and a shiny chrome bezel. Made to withstand outside elements, it is...
    09-1601060247
    SKU:
    09-1601060247
    Shape Options:
    Round
    Color:
    Red
    Truck Class:
    Universal
    Product Type:
    Lighting
    Diameter Options:
    3/4 Inch
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $12.47
    Qty in Cart: 0
    Price:
    $12.47
    Subtotal:
  • BESTfit 3 X 10 X 12 Inch Aluminized Steel Universal Type A Y-Pipe With No Divider Plate

    BESTfit 3 X 10 X 12 Inch Aluminized Steel Universal Type A Y-Pipe With No Divider Plate

    BESTFIT TRUCK PARTS

    $222.99
    BESTfit 3 X 10 X 12 Inch Aluminized Steel Universal Type A Y-Pipe With No Divider PlateKeep the exhaust balanced and exhaust gasses at lower temperatures with this quality Y Pipe. It is constructed...
    09-080100202
    SKU:
    09-080100202
    Product Type:
    Exhaust
    Truck Class:
    Heavy Duty
    Material Options:
    Aluminized Steel
    Diameter Options:
    3 Inch
    Make:
    Universal Items
    $222.99
    Qty in Cart: 0
    Price:
    $222.99
    Subtotal:
  • BESTfit 4 X 12 X 26 Inch Aluminized Steel Universal Type A Y-Pipe With Divider Plate

    BESTfit 4 X 12 X 26 Inch Aluminized Steel Universal Type A Y-Pipe With Divider Plate

    BESTFIT TRUCK PARTS

    $317.99
    BESTfit 4 X 12 X 26 Inch Aluminized Steel Universal Type A Y-Pipe With Divider PlateMade with an aluminized steel, this Universal Type A Y pipe is designed to keep the exhaust balance and gasses at...
    09-080100204
    SKU:
    09-080100204
    Length Options:
    12 Inch
    Height Options:
    12 Inch
    Material Options:
    Aluminized Steel
    Truck Class:
    Heavy Duty
    Diameter Options:
    4 Inch
    Product Type:
    Exhaust
    Make:
    Universal Items
    $317.99
    Qty in Cart: 0
    Price:
    $317.99
    Subtotal:
  • BESTfit 3.5 X 10 X 14 Inch Aluminized Steel Universal Type A Y-Pipe W/ No Divider Plate

    BESTfit 3.5 X 10 X 14 Inch Aluminized Steel Universal Type A Y-Pipe W/ No Divider Plate

    BESTFIT TRUCK PARTS

    $194.99
    Aluminized Steel Type A Universal Y-Pipe W/ 10 Inch Tail & No Divider PlateKeep the exhaust balanced and gasses at lower temperatures with this quality Y Pipe. It is constructed with a corrosion and...
    09-080100203
    SKU:
    09-080100203
    Product Type:
    Exhaust
    Material Options:
    Aluminized Steel
    Truck Class:
    Heavy Duty
    Diameter Options:
    3 Inch
    Make:
    Universal Items
    $194.99
    Qty in Cart: 0
    Price:
    $194.99
    Subtotal:
  • BESTfit 4 X 8 X 12 Inch Aluminized Steel Universal Type A Y-Pipe With No Divider Plate

    BESTfit 4 X 8 X 12 Inch Aluminized Steel Universal Type A Y-Pipe With No Divider Plate

    BESTFIT TRUCK PARTS

    $256.99
    BESTfit 4 X 8 X 12 Inch Aluminized Steel Universal Type A Y-Pipe With No Divider PlateAre you wanting to increase engine power? 4 State trucks offers this quality Y Pipe that can improve the flow of...
    09-080100205
    SKU:
    09-080100205
    Diameter Options:
    4 Inch
    Truck Class:
    Heavy Duty
    Material Options:
    Aluminized Steel
    Product Type:
    Exhaust
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $256.99
    Qty in Cart: 0
    Price:
    $256.99
    Subtotal:
  • Aluminum Foreman 4 Post I-Beam Upright Bumper Grille Guard W/ Vertical Pipes For Peterbilt 387

    Aluminum Foreman 4 Post I-Beam Upright Bumper Grille Guard W/ Vertical Pipes For Peterbilt 387

    TRUCK DEFENDER

    $5,425.99 - $5,638.99
    Choose Option(s) to see description.Fitment* Fits Peterbilt 387 1999 thru 2010Aluminum Foreman 4 Post I-Beam Upright Bumper Grille Guard W/ 2 Inch Vertical Pipes For Peterbilt 387Peterbilt 387...
    PPR_300168
    SKU:
    PPR_300168
    Location:
    Made In USA
    Material Options:
    Aluminum
    Finish Options:
    Polished
    Product Type:
    Bumpers
    Make:
    Peterbilt
    Style Options:
    4 Post
    Diameter Options:
    2 Inch
    Diameter Options:
    3 Inch
    $5,425.99 - $5,638.99
    Qty in Cart: 0
    Price:
    $5,425.99 - $5,638.99
    Subtotal:
  • Aluminum Foreman 4 Post I-Beam Upright Bumper Grille Guard For Peterbilt 387

    Aluminum Foreman 4 Post I-Beam Upright Bumper Grille Guard For Peterbilt 387

    TRUCK DEFENDER

    $4,906.99 - $5,365.99
    Choose Option(s) to see description.Fitment* Fits Peterbilt 387 1999 thru 2010Aluminum Foreman 4 Post I-Beam Upright Bumper Grille Guard W/ 2 Inch Pipes For Peterbilt 387Peterbilt 387 Polished...
    PPR_300144
    SKU:
    PPR_300144
    Location:
    Made In USA
    Material Options:
    Aluminum
    Finish Options:
    Polished
    Product Type:
    Bumpers
    Make:
    Peterbilt
    Style Options:
    4 Post
    Diameter Options:
    2 Inch
    Diameter Options:
    3 Inch
    $4,906.99 - $5,365.99
    Qty in Cart: 0
    Price:
    $4,906.99 - $5,365.99
    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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