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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
  • LC 7 X 84 Inch Chrome Turn Out Stack

    LC 7 X 84 Inch Chrome Turn Out Stack

    LINCOLN CHROME

    $785.99
    7 X 84 Inch Chrome Turn Out Stack By Lincoln ChromeThis LC 7 x 84 Inch Chrome Turn Out Stack is built to deliver strength, style, and dependable performance for heavy-duty trucks. Constructed from...
    09-087084073
    SKU:
    09-087084073
    Product Type:
    Exhaust
    Diameter Options:
    7 Inch
    Location:
    Made In USA
    Material Options:
    Steel
    Finish Options:
    Chrome-Plated
    Style Options:
    Curve Turn
    Height Options:
    84 Inch
    Make:
    Universal Items
    $785.99
    Qty in Cart: 0
    Price:
    $785.99
    Subtotal:
  • Standard Shock Relocate 4 Inch W/ 3/4 Pin

    Standard Shock Relocate 4 Inch W/ 3/4 Pin

    LOAD-SHARE SUSPENSIONS

    $236.99
    4 Inch Standard Shock Relocate W/ 3/4 Pin* High Quality Shock Relocate Kit* Designed To Relocate Shock Mounting Position* Standard Duty Application (Up To 12,000 Pound Capacity)* For 4 Inch Leaf...
    09-05090108
    SKU:
    09-05090108
    Product Type:
    Frame & Chassis
    Position:
    Kit Full
    Make:
    Universal Items
    $236.99
    Qty in Cart: 0
    Price:
    $236.99
    Subtotal:
  • Aluminum Cab Rack W/ Chrome Plated Stainless Steel Door 68 X 80 Inch

    Aluminum Cab Rack W/ Chrome Plated Stainless Steel Door 68 X 80 Inch

    ALTTEC

    $2,111.99
    Aluminum Cab Rack W/ Center Tool Box, 2 Chain Racks & 2 Aluminum Trays* High Quality Cab Rack* Made Of Aluminum* Includes:  - Chrome Plated Stainless Steel Door  - Center Tool Box  - (2) Chain Racks ...
    09-0213010
    SKU:
    09-0213010
    Product Type:
    Cargo Control
    Ready To Ship:
    Yes
    Width Options:
    80 Inch
    Height Options:
    68 Inch
    Material Options:
    Aluminum
    Make:
    Universal Items
    $2,111.99
    Qty in Cart: 0
    Price:
    $2,111.99
    Subtotal:
  • Holland No-Tilt ILS Slider Retrofit KIt

    Holland No-Tilt ILS Slider Retrofit KIt

    OPP - ORIGINAL PARTS PROGRAM

    $1,234.99
    Holland ILS Slider Retrofit Kit No-Tilt* High Quality Fifth Wheel Slider Retrofit Kit* Holland ILS No-Tilt Integrated Low-Weight Slider Design* Lightweight Bolt-On Construction* Slide-On No-Weld...
    09-051100934
    SKU:
    09-051100934
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $1,234.99
    Qty in Cart: 0
    Price:
    $1,234.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Chrome Push-On Bullet Nut Covers 11/16 Inch X 1 5/16 Inch - 50 Piece

    Chrome Push-On Bullet Nut Covers 11/16 Inch X 1 5/16 Inch - 50 Piece

    UNITED PACIFIC

    $48.12
    50 Piece Chrome Push On Bullet Nut Covers 11/16 Inch X 1 5/16 Inch* High Quality Nut Cover* Made Of Plastic* Triple Chrome Plating* Bullet Head Design* Used For Hex Nuts And Bolts* Dimensions:  -...
    09-05060099
    SKU:
    09-05060099
    Diameter Options:
    11/16 Inch
    Material Options:
    Plastic/Poly
    Finish Options:
    Chrome-Plated
    Product Type:
    Frame & Chassis
    Type Options:
    Push On
    Height Options:
    2 Inch
    Style Options:
    Bullet
    Make:
    Universal Items
    $48.12
    Qty in Cart: 0
    Price:
    $48.12
    Subtotal:
  • FREE SHIPPING OVER $249
    Bottom Bolt Thru Mud Flap Plates Stainless Steel 24 Inch X 4 Inch

    Bottom Bolt Thru Mud Flap Plates Stainless Steel 24 Inch X 4 Inch

    UNITED PACIFIC

    $58.99
    24 Inch X 4 Inch Stainless Steel Bottom Bolt Thru Mud Flap Plates* High Quality Bottom Mud Flap Plate* Made Of 304 Stainless Steel* Polished Shine Finish* Mounting Hardware Included* Dimensions:  -...
    09-050700281
    SKU:
    09-050700281
    Material Options:
    Stainless Steel
    Finish Options:
    Polished
    Product Type:
    Mud Flaps
    Height Options:
    4 Inch
    Width Options:
    24 Inch
    Type Options:
    Bolt Mount
    Make:
    Universal Items
    $58.99
    Qty in Cart: 0
    Price:
    $58.99
    Subtotal:
  • Stainless Steel Air Cylinder For Bumper Flip Kit

    Stainless Steel Air Cylinder For Bumper Flip Kit

    AFTERMARKET

    $197.99
    Air Cylinder For Bumper Flip Kit Stainless Steel* High Quality Air Cylinder* Made Of Stainless Steel* Designed For Bumper Flip Kit (Not Included)* Includes:  - Wear Ring  - Standard Bronze Rod...
    09-010800002
    SKU:
    09-010800002
    Product Type:
    Bumpers
    Ready To Ship:
    Yes
    Material Options:
    Stainless Steel
    Diameter Options:
    2 Inch
    Make:
    Universal Items
    $197.99
    Qty in Cart: 0
    Price:
    $197.99
    Subtotal:
  • Stainless Steel Rear Light T-Bar 96 X 8 Inch W/ 8 4 Inch Light Holes

    Stainless Steel Rear Light T-Bar 96 X 8 Inch W/ 8 4 Inch Light Holes

    AFTERMARKET

    $1,073.99
    Rear Light T-Bar 96 X 8 Inch Stainless Steel W/ 8 4 Inch Light Holes* High Quality Rear Light Bar* Made Of 14 Gauge 304 Stainless Steel* Mirror Finish* T-Bar Design* Includes:  - (8) Round 4 Inch...
    09-011000760
    SKU:
    09-011000760
    Product Type:
    Bumpers
    Material Options:
    Stainless Steel
    Light Options:
    Without Lights
    Size Options:
    14 Gauge
    Finish Options:
    Polished
    Height Options:
    18 Inch
    Width Options:
    96 Inch
    Make:
    Universal Items
    $1,073.99
    Qty in Cart: 0
    Price:
    $1,073.99
    Subtotal:
  • FREE SHIPPING
    Sleeper Boot Big Hole Walkthrough For Peterbilt W/ Standard Cab / Flat Roof Replaces T09-6002

    Sleeper Boot Big Hole Walkthrough For Peterbilt W/ Standard Cab / Flat Roof Replaces T09-6002

    DAN'S SHOP

    $446.99
    Big Hole Walkthrough Rubber Sleeper Boot Replaces T09-6002 Peterbilt W/ Standard Cab / Flat Roof* High Quality Walkthrough Sleeper Boot* Made Of Heavy-Duty Molded Rubber* Big Hole Design* For...
    01-154202
    SKU:
    01-154202
    Color:
    Black
    Material Options:
    Rubber
    Product Type:
    Interior
    Make:
    Peterbilt
    Ready To Ship:
    Yes
    $446.99
    Qty in Cart: 0
    Price:
    $446.99
    Subtotal:
  • Robert James ZenEclipse Gray Lower Bunk Window Cover - Driver Side For Peterbilt W/ 63 Inch Sleeper

    Robert James ZenEclipse Gray Lower Bunk Window Cover - Driver Side For Peterbilt W/ 63 Inch Sleeper

    ROBERT JAMES ENTERPRISES

    $101.99
    Gray Driver Side ZenEclipse Lower Bunk Window Cover* High Quality Lower Bunk Window Cover* 7 Layers:  - (1) Ultraflect Nylon  - (3) Layers Of Polyester  - (1) Aluminum Fabric  - (1) 1/4 Inch Foam  -...
    01-154000061
    SKU:
    01-154000061
    Product Type:
    Interior
    Ready To Ship:
    Yes
    Material Options:
    Nylon
    Position:
    Driver Side
    Color:
    Gray
    Location:
    Made In USA
    Make:
    Peterbilt
    $101.99
    Qty in Cart: 0
    Price:
    $101.99
    Subtotal:
  • Sleeper Panel 6 Inch Wide Fiberglass - Passenger Side For Peterbilt W/ 63 Inch Sleeper & No Extension

    Sleeper Panel 6 Inch Wide Fiberglass - Passenger Side For Peterbilt W/ 63 Inch Sleeper & No Extension

    FIBERTECH

    $140.00
    Passenger Side Sleeper Panel 6 Inch Wide Fiberglass* High Quality Sleeper Panel* Made Of Fiberglass* For Models With 63 Inch Sleepers And No Extensions* 6 Inch Height* Passenger Side* Sold...
    01-101201278
    SKU:
    01-101201278
    Product Type:
    Exterior
    Ready To Ship:
    Yes
    Height Options:
    6 Inch
    Material Options:
    Fiberglass
    Position:
    Passenger Side
    Make:
    Peterbilt
    $140.00
    Qty in Cart: 0
    Price:
    $140.00
    Subtotal:
  • FREE SHIPPING OVER $249
    LC 8 Inch Stainless Steel Upper Slider Exhaust Clamp For Peterbilt

    LC 8 Inch Stainless Steel Upper Slider Exhaust Clamp For Peterbilt

    LINCOLN CHROME

    $189.99
    8 Inch Stainless Steel Upper Slider Exhaust Clamp By Lincoln Chrome* High Quality Exhaust Clamp* Made Of Stainless Steel* Upper Slider* 8 Inch Diameter* Made In USA* Sold Individually* Warranty On...
    01-0800806
    SKU:
    01-0800806
    Diameter Options:
    8 Inch
    Position:
    Upper
    Product Type:
    Exhaust
    Location:
    Made In USA
    Material Options:
    Stainless Steel
    Make:
    Peterbilt
    Ready To Ship:
    Yes
    $189.99
    Qty in Cart: 0
    Price:
    $189.99
    Subtotal:
  • Turnpike Truck Trim Punched Tool Box 31 Inch Stainless Steel W/ Mirror Finish, Hinge & T Handle Latch Brackets For Peterbilt

    Turnpike Truck Trim Punched Tool Box 31 Inch Stainless Steel W/ Mirror Finish, Hinge & T Handle Latch Brackets For Peterbilt

    TURNPIKE TRUCK TRIM

    $1,130.99
    31 Inch Stainless Steel Tool Box W/ Mirror Finish, Hinge & T Handle Latch Brackets By Turnpike Truck Trim Fits PeterbiltAdd convenient storage and premium styling to your truck with this Turnpike...
    01-05020032
    SKU:
    01-05020032
    Style Options:
    Punched
    Finish Options:
    Polished
    Material Options:
    Stainless Steel
    Length Options:
    31 Inch
    Make:
    Peterbilt
    Product Type:
    Toolboxes
    $1,130.99
    Qty in Cart: 0
    Price:
    $1,130.99
    Subtotal:
  • On Sale
    Limited Quantity Available
    142 Inch SS The Boss Long Drop Full Fender W/ Rolled Edge

    142 Inch SS The Boss Long Drop Full Fender W/ Rolled Edge

    TRUX ACCESSORIES

    Now: $1,075.35
    Was: $1,221.99
    29 X 24 X 142 Inch Long Drop 14 Gauge Stainless Steel Full Tandem FendersThis high quality 142 inch Stainless Steel "The Boss" Long Drop Full Fender with a Rolled Edge design. The fender has a long...
    09-11030302
    SKU:
    09-11030302
    Product Type:
    Rear Fenders
    Material Options:
    Stainless Steel
    Light Options:
    Without Lights
    Make:
    Universal Items
    Truck Class:
    Heavy Duty
    Now: $1,075.35
    Was: $1,221.99
    Qty in Cart: 0
    Price:
    Now: $1,075.35
    Was: $1,221.99
    Subtotal:
  • Merritt Aluminum Dyna Light 3 Door Vault Cab Rack, 68 In X 80 In, W/ Stainless Steel or Aluminum Doors, Dual Chain Racks, 2 Shelves

    Merritt Aluminum Dyna Light 3 Door Vault Cab Rack, 68 In X 80 In, W/ Stainless Steel or Aluminum Doors, Dual Chain Racks, 2 Shelves

    MERRITT

    $6,302.99 - $8,294.99
    Organize your tools and cargo with the Merritt Aluminum Dyna Light 3 Door Vault Cab Rack, crafted from premium aluminum with stainless steel or aluminum doors for a combination of strength and style...
    PPR_301005
    SKU:
    PPR_301005
    Finish Options:
    Smooth
    Material Options:
    Aluminum
    Style Options:
    3 Door
    Height Options:
    68 Inch
    Width Options:
    80 Inch
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Finish Options:
    Polished
    Product Type:
    Cargo Control
    $6,302.99 - $8,294.99
    Qty in Cart: 0
    Price:
    $6,302.99 - $8,294.99
    Subtotal:
  • Herd 100 Series Cab Guard With Long Or Short Chain Tray

    Herd 100 Series Cab Guard With Long Or Short Chain Tray

    HERD BUMPERS

    $1,983.99 - $2,096.99
    Keep your cab and chains protected with the Herd 100 Series Cab Guard With Long or Short Chain Tray. Aluminum construction with a hard coat finish ensures long-term durability, while long chain trays...
    PPR_301003
    SKU:
    PPR_301003
    Height Options:
    68 Inch
    Material Options:
    Aluminum
    Width Options:
    70 Inch
    Height Options:
    75 Inch
    Width Options:
    80 Inch
    Product Type:
    Cargo Control
    Make:
    Universal Items
    $1,983.99 - $2,096.99
    Qty in Cart: 0
    Price:
    $1,983.99 - $2,096.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Stainless Steel Exhaust Clamp For Peterbilt 2006 & Earlier, 389 Glider 2008-2024

    Stainless Steel Exhaust Clamp For Peterbilt 2006 & Earlier, 389 Glider 2008-2024

    TRUX ACCESSORIES

    $98.99 - $116.99
    Choose Option(s) to see description.Fitment* Fits Peterbilt 330 1995 thru 2005* Fits Peterbilt 335 2005 thru 2006* Fits Peterbilt 337 2011 thru 2006* Fits Peterbilt 352 1972 thru 1980* Fits Peterbilt...
    PPR_300945
    SKU:
    PPR_300945
    Diameter Options:
    6 Inch
    Style Options:
    Angled
    Material Options:
    Stainless Steel
    Diameter Options:
    7 Inch
    Width Options:
    3 Inch
    Width Options:
    3 1/4 Inch
    Product Type:
    Exhaust
    Make:
    Peterbilt
    $98.99 - $116.99
    Qty in Cart: 0
    Price:
    $98.99 - $116.99
    Subtotal:
  • Iowa Customs Slide In Dyna-Deck Rail Mini On Top Airline Box

    Iowa Customs Slide In Dyna-Deck Rail Mini On Top Airline Box

    IOWA CUSTOMS

    $642.99 - $718.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksIowa Customs Merritt Dyna Deck System Mini On Top Airline Box Section - Stainless SteelStainless Steel...
    PPR_300940
    SKU:
    PPR_300940
    Location:
    Made In USA
    Degree Options:
    45
    Material Options:
    Stainless Steel
    Product Type:
    Frame & Chassis
    Style Options:
    Recessed
    Finish Options:
    Polished
    Make:
    Universal Items
    $642.99 - $718.99
    Qty in Cart: 0
    Price:
    $642.99 - $718.99
    Subtotal:
  • Iowa Customs Merritt Dynadeck In-Frame Deck Plate System, 30 1/4 Wide

    Iowa Customs Merritt Dynadeck In-Frame Deck Plate System, 30 1/4 Wide

    IOWA CUSTOMS

    $644.99 - $1,003.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksIowa Customs Merritt Dynadeck In-Frame 10 Plank Deck Plate System, 30 1/4 Wide X 92.5 LongMerritt...
    PPR_300948
    SKU:
    PPR_300948
    Length Options:
    92 Inch
    Material Options:
    Aluminum
    Style Options:
    Ribbed
    Length Options:
    56 Inch
    Product Type:
    Frame & Chassis
    Location:
    Made In USA
    Width Options:
    30 Inch
    Make:
    Universal Items
    $644.99 - $1,003.99
    Qty in Cart: 0
    Price:
    $644.99 - $1,003.99
    Subtotal:
  • On Sale
    Limited Quantity Available
    Stainless Steel Smoke & Mirror Single Axle Fender Mounting Kit W/ Color Options

    Stainless Steel Smoke & Mirror Single Axle Fender Mounting Kit W/ Color Options

    TRUX ACCESSORIES

    $483.11 - $595.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksStainless Steel Smoke & Mirror Single Axle Fender Triangle Mounting Kit W/ All Hardware - BlackSmoke &...
    PPR_300946
    SKU:
    PPR_300946
    Color:
    Bronze
    Color:
    Red
    Material Options:
    Stainless Steel
    Product Type:
    Rear Fenders
    Type Options:
    Post Mount
    Color:
    Green
    Color:
    Black
    Position:
    Kit Full
    Finish Options:
    Polished
    Size Options:
    14 Gauge
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $483.11 - $595.99
    Qty in Cart: 0
    Price:
    $483.11 - $595.99
    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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