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Peterbilt 357/378 Frame Nut Covers

  • Product
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • FREE SHIPPING OVER $249
    15/16 Or 7/8 Inch Chrome Nut Cover Top Hat Style

    15/16 Or 7/8 Inch Chrome Nut Cover Top Hat Style

    LIFETIME NUT COVERS

    $2.54
    Chrome Top Hat Nut Cover With FlangeLifetime nut covers are made with drivers in mind. This short top hat nut cover with a flange is for 15/16 inch and ? inch bolt heads. Made of ABS plastic injected...
    09-0506108
    SKU:
    09-0506108
    Truck Class:
    Universal
    Location:
    Made In USA
    Style Options:
    Top Hat
    Material Options:
    Plastic/Poly
    Make:
    Universal Items
    Finish Options:
    Chrome-Plated
    Product Type:
    Frame & Chassis
    Ready To Ship:
    Yes
    $2.54
    Qty in Cart: 0
    Price:
    $2.54
    Subtotal:
  • FREE SHIPPING OVER $249
    Limited Quantity Available
    Chrome Plastic Flat Top Nut Covers, Push On

    Chrome Plastic Flat Top Nut Covers, Push On

    UNITED PACIFIC

    $0.86 - $87.99
    Give your wheels a clean, finished appearance with these Chrome Plastic Flat Top Nut Covers. Designed for hex nuts and bolts, these push-on nut covers feature a chrome-plated plastic construction...
    PPR_204327
    SKU:
    PPR_204327
    Truck Class:
    Universal
    Style Options:
    Flat
    Material Options:
    Plastic/Poly
    Make:
    Universal Items
    Finish Options:
    Chrome-Plated
    Truck Class:
    Heavy Duty
    Ready To Ship:
    Yes
    Product Type:
    Frame & Chassis
    $0.86 - $87.99
    Qty in Cart: 0
    Price:
    $0.86 - $87.99
    Subtotal:
  • FREE SHIPPING OVER $249
    15/16 & 7/8 Inch Chrome Plastic Top Hat Nut Cover With Flange - 10 Pack

    15/16 & 7/8 Inch Chrome Plastic Top Hat Nut Cover With Flange - 10 Pack

    AFTERMARKET

    $12.89
    Nut Cover* Made Of High Quality Chrome Plated Plastic* Top Hat Style With Flange* 15/16 Inch And 7/8 Inch* Sold As Pack* Made In USA* Warranty On Nut Cover Against Defects In Workmanship & Material...
    09-050602210
    SKU:
    09-050602210
    Truck Class:
    Universal
    Style Options:
    Top Hat
    Material Options:
    Plastic/Poly
    Make:
    Universal Items
    Finish Options:
    Chrome-Plated
    Product Type:
    Frame & Chassis
    Ready To Ship:
    Yes
    $12.89
    Qty in Cart: 0
    Price:
    $12.89
    Subtotal:
  • FREE SHIPPING OVER $249
    15/16 & 7/8 Inch Chrome Plastic Bolt Heads Top Hat Nut Cover W/ Flange

    15/16 & 7/8 Inch Chrome Plastic Bolt Heads Top Hat Nut Cover W/ Flange

    LIFETIME NUT COVERS

    $1.93
    Chrome Plastic Tall Top Hat Nut Cover With FlangeThis high quality tall top nut cover with a flange by Lifetime Nut Covers is made of chrome plated plastic. It is designed to turn one way to fit a...
    09-0506030
    SKU:
    09-0506030
    Truck Class:
    Universal
    Location:
    Made In USA
    Style Options:
    Top Hat
    Material Options:
    Plastic/Poly
    Make:
    Universal Items
    Finish Options:
    Chrome-Plated
    Product Type:
    Frame & Chassis
    Ready To Ship:
    Yes
    $1.93
    Qty in Cart: 0
    Price:
    $1.93
    Subtotal:
  • FREE SHIPPING OVER $249
    15/16 Chrome Plastic Top Hat Style Nut Cover

    15/16 Chrome Plastic Top Hat Style Nut Cover

    LIFETIME NUT COVERS

    $2.03
    Chrome Plastic 15/16 Inch Round Top Hat Lug Nut CoverWe carry a wide variety of Lifetime Nut Covers parts to add to the look of your truck including chrome-plated plastic round top hat lug nut covers...
    09-0506000
    SKU:
    09-0506000
    Location:
    Made In USA
    Truck Class:
    Universal
    Material Options:
    Plastic/Poly
    Make:
    Universal Items
    Finish Options:
    Chrome-Plated
    Product Type:
    Frame & Chassis
    Ready To Ship:
    Yes
    $2.03
    Qty in Cart: 0
    Price:
    $2.03
    Subtotal:
  • FREE SHIPPING OVER $249
    15/16 & 7/8 Inch Chrome Plastic Top Hat Nut Cover W/ Flange

    15/16 & 7/8 Inch Chrome Plastic Top Hat Nut Cover W/ Flange

    LIFETIME NUT COVERS

    $1.65
    Top Hat Nut Cover With FlangeThis top hat Lifetime Nut Cover with a flange is specially designed to fit two different sizes of nuts. Turn the nut covers one way to fit a 15/16 inch bolt head or turn...
    09-0506022
    SKU:
    09-0506022
    Truck Class:
    Universal
    Location:
    Made In USA
    Style Options:
    Top Hat
    Material Options:
    Plastic/Poly
    Make:
    Universal Items
    Finish Options:
    Chrome-Plated
    Product Type:
    Frame & Chassis
    Ready To Ship:
    Yes
    $1.65
    Qty in Cart: 0
    Price:
    $1.65
    Subtotal:
  • FREE SHIPPING OVER $249
    18MM & 3/4 Inch Chrome Plastic Bolt Heads Top Hat Nut Cover W/ Flange

    18MM & 3/4 Inch Chrome Plastic Bolt Heads Top Hat Nut Cover W/ Flange

    LIFETIME NUT COVERS

    $2.03
    Top Hat Style Nut CoverThis top hat Lifetime Nut Cover with a flange is specially designed to fit two different sizes of nuts. Turn the nut covers one way to fit a standard sized inch bolt head or...
    09-0506021
    SKU:
    09-0506021
    Location:
    Made In USA
    Truck Class:
    Universal
    Length Options:
    1 Inch
    Style Options:
    Top Hat
    Material Options:
    Plastic/Poly
    Size Options:
    18 mm
    Make:
    Universal Items
    Finish Options:
    Chrome-Plated
    Product Type:
    Frame & Chassis
    Ready To Ship:
    Yes
    $2.03
    Qty in Cart: 0
    Price:
    $2.03
    Subtotal:
  • FREE SHIPPING OVER $249
    15/16 And 7/8 Inch Chrome Plastic Top Hat Nut Cover With Flange - 10 Pack

    15/16 And 7/8 Inch Chrome Plastic Top Hat Nut Cover With Flange - 10 Pack

    AFTERMARKET

    $12.89
    Nut Cover* Made Of High Quality Chrome Plated Plastic* Top Hat Style With Flange* 15/16 Inch And 7/8 Inch Bolt Heads* Sold As Pack* Warranty On Nut Cover Against Defects In Workmanship & Material...
    09-050603010
    SKU:
    09-050603010
    Truck Class:
    Universal
    Style Options:
    Top Hat
    Material Options:
    Plastic/Poly
    Make:
    Universal Items
    Finish Options:
    Chrome-Plated
    Product Type:
    Frame & Chassis
    Ready To Ship:
    Yes
    $12.89
    Qty in Cart: 0
    Price:
    $12.89
    Subtotal:
  • FREE SHIPPING OVER $249
    1.125 & 1.0625 Inch Chrome Plastic Bolt Head Top Hat Nut Cover W/ Flange

    1.125 & 1.0625 Inch Chrome Plastic Bolt Head Top Hat Nut Cover W/ Flange

    LIFETIME NUT COVERS

    $3.05
    Top Hat Style Nut CoverLifetime Nut Covers is a made in the USA source for nut covers and we offer a wide variety to meet your needs including chrome-plated top hat covers with flanges. These nut...
    09-0506024
    SKU:
    09-0506024
    Truck Class:
    Universal
    Location:
    Made In USA
    Style Options:
    Top Hat
    Material Options:
    Plastic/Poly
    Make:
    Universal Items
    Finish Options:
    Chrome-Plated
    Product Type:
    Frame & Chassis
    Ready To Ship:
    Yes
    $3.05
    Qty in Cart: 0
    Price:
    $3.05
    Subtotal:
  • FREE SHIPPING OVER $249
    Nut Cover and Bumper Button Set For Standard Frame For Peterbilt

    Nut Cover and Bumper Button Set For Standard Frame For Peterbilt

    LIFETIME NUT COVERS

    $91.99
    Nut Covers for Frame Fits Peterbilt W/ Standard Bolts 2000 & OlderCheck out this awesome nut cover set for Peterbilt models from 1995 and newer! It's got 44 - 15/16 - 7/8 inch bolt covers and 4 - 3/4...
    01-050600
    SKU:
    01-050600
    Diameter Options:
    3/4 Inch
    Truck Class:
    Heavy Duty
    Location:
    Made In USA
    Material Options:
    Plastic/Poly
    Make:
    Peterbilt
    Finish Options:
    Chrome-Plated
    Product Type:
    Frame & Chassis
    Ready To Ship:
    Yes
    $91.99
    Qty in Cart: 0
    Price:
    $91.99
    Subtotal:
  • Limited Quantity Available
    FREE SHIPPING OVER $249
    Chrome Spike Nut Covers For Hex Nuts - Push On

    Chrome Spike Nut Covers For Hex Nuts - Push On

    UNITED PACIFIC

    $0.79 - $74.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Trucks and Trailers1/2 X 1 7/16 Inch Chrome Spike Nut Covers - Push On - 10 PackChrome Plated Plastic Push On Nut Covers W/...
    PPR_205713
    SKU:
    PPR_205713
    Truck Class:
    Heavy Duty
    Material Options:
    Plastic/Poly
    Make:
    Universal Items
    Finish Options:
    Chrome-Plated
    Style Options:
    Spike
    Diameter Options:
    1 1/8 Inch
    Diameter Options:
    3/4 Inch
    Length Options:
    1 1/2 Inch
    Length Options:
    2 1/2 Inch
    Location:
    Made In USA
    Diameter Options:
    11/16 Inch
    Diameter Options:
    7/16 Inch
    Diameter Options:
    1/2 Inch
    Length Options:
    1 7/8 Inch
    Diameter Options:
    15/16 Inch
    Diameter Options:
    5/8 Inch
    Length Options:
    2 3/4 Inch
    Diameter Options:
    9/16 Inch
    Length Options:
    1 1/4 Inch
    Type Options:
    Push On
    Length Options:
    2 1/16 Inch
    Length Options:
    2 1/4 Inch
    Length Options:
    2 Inch
    Product Type:
    Wheels
    Ready To Ship:
    Yes
    Diameter Options:
    2 Inch
    Height Options:
    5/8 Inch
    $0.79 - $74.99
    Qty in Cart: 0
    Price:
    $0.79 - $74.99
    Subtotal:
  • On Sale
    FREE SHIPPING OVER $249
    Limited Quantity Available
    Chrome Plastic Bullet Nut Cover - Push On

    Chrome Plastic Bullet Nut Cover - Push On

    UNITED PACIFIC

    $0.21 - $10.40
    Improve the appearance of your wheels with this chrome plastic bullet nut cover featuring a convenient push-on design. Designed for universal applications, these high-quality aftermarket nut covers...
    PPR_204461
    SKU:
    PPR_204461
    Truck Class:
    Universal
    Style Options:
    Bullet
    Material Options:
    Plastic/Poly
    Make:
    Universal Items
    Finish Options:
    Chrome-Plated
    Ready To Ship:
    Yes
    Style Options:
    Push On
    Diameter Options:
    1 Inch
    Height Options:
    1 5/8 Inch
    Product Type:
    Frame & Chassis
    Location:
    Made In USA
    Diameter Options:
    11/16 Inch
    Height Options:
    2 Inch
    Type Options:
    Push On
    $0.21 - $10.40
    Qty in Cart: 0
    Price:
    $0.21 - $10.40
    Subtotal:
  • FREE SHIPPING OVER $249
    3/4 Inch Short Top Hat Nut Covers -10 Pack

    3/4 Inch Short Top Hat Nut Covers -10 Pack

    AFTERMARKET

    $12.89
    Top Hat Nut Covers* Made Of High Quality Chrome Plated Plastic* 3/4 Inches* Sold As Pack* Warranty On Nut Covers Against Defects In Workmanship & Material From Date Of Purchase*** High Quality...
    09-050609810
    SKU:
    09-050609810
    Truck Class:
    Universal
    Material Options:
    Plastic/Poly
    Make:
    Universal Items
    Finish Options:
    Chrome-Plated
    Product Type:
    Frame & Chassis
    Ready To Ship:
    Yes
    $12.89
    Qty in Cart: 0
    Price:
    $12.89
    Subtotal:
  • FREE SHIPPING OVER $249
    Limited Quantity Available
    Chrome Die-Cast Acorn Nut Covers

    Chrome Die-Cast Acorn Nut Covers

    UNITED PACIFIC

    $0.73 - $1.03
    Give your truck or trailer a clean, finished appearance with this chrome die-cast acorn nut cover, designed to conceal exposed nuts and bolts. This high-quality aftermarket replacement is available...
    PPR_204441
    SKU:
    PPR_204441
    Truck Class:
    Universal
    Material Options:
    Steel
    Shape Options:
    Acorn
    Make:
    Universal Items
    Finish Options:
    Chrome-Plated
    Material Options:
    Plastic/Poly
    Truck Class:
    Heavy Duty
    Product Type:
    Frame & Chassis
    Ready To Ship:
    Yes
    Height Options:
    1 Inch
    Diameter Options:
    11/16 Inch
    Diameter Options:
    3/4 Inch
    Material Options:
    Diecast
    Type Options:
    Push On
    Location:
    Made In USA
    $0.73 - $1.03
    Qty in Cart: 0
    Price:
    $0.73 - $1.03
    Subtotal:
  • FREE SHIPPING OVER $249
    14MM & 9/16 Inch Chrome Plastic Bolt Heads Top Hat Nut Cover W/ Flange

    14MM & 9/16 Inch Chrome Plastic Bolt Heads Top Hat Nut Cover W/ Flange

    LIFETIME NUT COVERS

    $1.42
    Top Hat Style Nut CoverNot only is having the nut covers to add some shine to your truck something to look for, but also the fitment of the nut covers. We proudly offer Lifetime Nut Covers made in...
    09-0506027
    SKU:
    09-0506027
    Location:
    Made In USA
    Truck Class:
    Universal
    Style Options:
    Top Hat
    Material Options:
    Plastic/Poly
    Size Options:
    14 mm
    Make:
    Universal Items
    Finish Options:
    Chrome-Plated
    Product Type:
    Frame & Chassis
    $1.42
    Qty in Cart: 0
    Price:
    $1.42
    Subtotal:
  • FREE SHIPPING OVER $249
    13MM And 1/2 Inch Chrome Plastic Top Hat Style Nut Cover

    13MM And 1/2 Inch Chrome Plastic Top Hat Style Nut Cover

    LIFETIME NUT COVERS

    $2.07
    Chrome 13MM And 1/2 Inch Top Hat Style Nut CoverThis lug nut cover comes in chrome plastic and fits 1/2" and 13MM nuts. It's a top hat style cover with a flange, made of ABS plastic and triple chrome...
    09-0506089
    SKU:
    09-0506089
    Location:
    Made In USA
    Truck Class:
    Universal
    Style Options:
    Top Hat
    Size Options:
    13 mm
    Material Options:
    Plastic/Poly
    Make:
    Universal Items
    Finish Options:
    Chrome-Plated
    Product Type:
    Frame & Chassis
    Diameter Options:
    1/2 Inch
    Ready To Ship:
    Yes
    $2.07
    Qty in Cart: 0
    Price:
    $2.07
    Subtotal:
  • 7/8 x 15/16 Inch Chrome Plastic Top Hat Nut Cover

    7/8 x 15/16 Inch Chrome Plastic Top Hat Nut Cover

    GRAND GENERAL

    $1.58
    Chrome Plated Top Hat Style Nut Cover* High Quality Nut Cover* Chrome-Plated Plastic* 7/8 x 15/16 Inch* Flat Top Hat Style* Sold Individually* Warranty On Nut Covers Against Defects In Workmanship &...
    09-0506104
    SKU:
    09-0506104
    Truck Class:
    Universal
    Style Options:
    Flat
    Material Options:
    Plastic/Poly
    Make:
    Universal Items
    Finish Options:
    Chrome-Plated
    Product Type:
    Frame & Chassis
    Ready To Ship:
    Yes
    $1.58
    Qty in Cart: 0
    Price:
    $1.58
    Subtotal:
  • Chrome Huck Rivet / Nut Cover Set - 48 Pieces

    Chrome Huck Rivet / Nut Cover Set - 48 Pieces

    UNITED PACIFIC

    $36.82
    Chrome Plastic Huck Nut CoversCheck out this chrome plastic huck rivet/nut cover set! This complete set includes forty-four 1 3/16-inch nut covers and four 3/4-inch nut covers. Perfect for enhancing...
    09-05060034
    SKU:
    09-05060034
    Truck Class:
    Universal
    Material Options:
    Plastic/Poly
    Make:
    Universal Items
    Finish Options:
    Chrome-Plated
    Product Type:
    Frame & Chassis
    Ready To Ship:
    Yes
    $36.82
    Qty in Cart: 0
    Price:
    $36.82
    Subtotal:
  • FREE SHIPPING OVER $249
    Huck Adapter Sleeve - White 15/16 Inch Id X 1-1/4 Inch Od

    Huck Adapter Sleeve - White 15/16 Inch Id X 1-1/4 Inch Od

    LIFETIME NUT COVERS

    $1.01
    White Plastic Huck Adapter Sleeve 15/16 Inch ID X 1-1/4 Inch ODDo you need huck adapters for the frame of your truck? 4 State Trucks carries size options from Lifetime Nut Covers including white huck...
    09-0506092
    SKU:
    09-0506092
    Truck Class:
    Universal
    Diameter Options:
    1 Inch
    Location:
    Made In USA
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $1.01
    Qty in Cart: 0
    Price:
    $1.01
    Subtotal:
  • 1 1/4 Inch Bullet Style Chrome Plastic Nut Cover Without Flange

    1 1/4 Inch Bullet Style Chrome Plastic Nut Cover Without Flange

    LIFETIME NUT COVERS

    $3.05
    1 1/4 Inch Bullet Style Chrome Plastic Nut Cover Without Flange By Lifetime Nut Covers* High Quality Nut Cover* Made Of Chrome Plated Plastic* 1 1/4 Inch* Bullet Style * Without Flange* Sold...
    09-0506105
    SKU:
    09-0506105
    Location:
    Made In USA
    Truck Class:
    Universal
    Style Options:
    Bullet
    Material Options:
    Plastic/Poly
    Make:
    Universal Items
    Finish Options:
    Chrome-Plated
    Product Type:
    Frame & Chassis
    $3.05
    Qty in Cart: 0
    Price:
    $3.05
    Subtotal:
  • Total: items /

Adding your products to cart

Upgrade your Peterbilt 357/378 with premium nut covers that combine style and functionality. These durable chrome plastic covers come in a variety of sizes and designs to dress up your truck's frame hardware. From classic skull and spike patterns to sleek top hat styles, you'll find the perfect accents to complement your rig's look. These push-on covers install easily and securely, enhancing the appearance of your Peterbilt without any complicated installation. Whether you're looking to add a touch of personalization or just keep your bolts and nuts protected, this wide selection of Peterbilt 357/378 nut covers has you covered.

Frequently Asked Questions About Peterbilt 357/378 Frame Nut Covers

What are frame nut covers and what do they do?

Frame nut covers are decorative caps that snap or thread over the exposed frame bolts and nuts running along the chassis rail of your Peterbilt 357 or 378. They hide the raw hardware for a cleaner, more finished look and help protect the nuts and bolt threads from road grime, moisture, and corrosion buildup over time.

Will these covers fit my specific Peterbilt 357 or 378?

Frame nut covers are typically sized to match standard frame bolt hardware found on 357 and 378 models, but nut sizes can vary slightly depending on year and how the truck was originally built or later serviced. Before ordering, measure the hex size across your existing frame nuts and compare it to the cover's listed size to confirm a proper fit.

What materials and finishes are available?

These covers are commonly offered in chrome-plated plastic and stainless steel, with steel typically holding up better long-term against heat, road debris, and repeated washing. Chrome plastic offers a lower-cost option that still delivers a shiny, finished appearance for owners looking to dress up their frame rail without a heavy investment.

How do I install frame nut covers, and do I need any tools?

Most frame nut covers are designed as a simple push-on or snap-fit application that requires no tools and does not involve removing or loosening the actual frame nut. Simply clean the area around the nut, then press the cover into place until it seats securely over the hardware.

Will these covers stay secure in normal driving conditions, or fall off over time?

Quality frame nut covers are built to stay in place under normal highway vibration and driving conditions once properly seated. That said, extreme temperature swings, road salt, and rough terrain can loosen the fit over time, so it is a good idea to periodically check that each cover is still snapped on tight, especially after long hauls or a fresh wash.


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