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    Signs of a Failing Heater Box & What to Do About It(Post)

    Experiencing refreshing cool air in the summer and warm air in the winter is nearly priceless when behind the wheel of a big rig for 11 hours a day. However, if your A/C heater box isn’t working, your

    Common Steering Problems on Peterbilt 379 Trucks(Post)

    Here are some of the most common steering problems found on older Peterbilt 379 models, how to diagnose those issues, and how to prevent them. Related Posts:  How to Replace a Peterbilt Steering Shaf

    Top Semi Trucks Owned in Each State (Data for All 50 States) (Post)

    Here's some visual data on the most commonly owned heavy duty semi truck models based upon three popular truck brands: Peterbilt, Kenworth, and Freightliner. DISCLAIMER: (as of 2025) this data is four

    How to Find the Right FL70 Parts Using Your VIN(Post)

    To identify the right Freightliner FL70 parts, you must use your 17-digit VIN and the factory spec decal inside your cab, rather than relying on the exterior model badge. Because FL70 and FL80 Busines

    How to Choose the Best Fridge for Your Semi Truck(Post)

    Every OTR truck driver needs reliable cooling for food and beverages on long haul drives. That's where semi truck refrigerators come in handy. When it comes to buying this must-have accessory, what's

    What Should Be in a Semi Truck Emergency Kit? (Free PDF Checklist for Drivers)(Post)

    Semi-truck breakdowns cost money and time; but they aren't inevitable. With the right emergency accessories, truck drivers can minimize costly delays, tackle minor repairs on the fly, and safely power

    A Buyer's Guide to Semi Truck Toolbox Storage(Post)

    If there's one thing that a truck driver needs it's more storage space. Buying the right heavy-duty commercial truck storage boxes is one of the most useful purchases you can make. Here are some of t

    Top 10 Semi Truck Winter Accessories for Heavy-Duty Drivers(Post)

    Winter truck driving can be downright trecherous to haul payloads in, especially when you don't have the right winter-ready trucker gear to get you through difficult drives in below-freezing temperatu

    What are Semi Truck Winter Fronts?(Post)

    A semi-truck winter front is a heavy-duty, weather-resistant cover designed to mount directly over a truck’s front grille. Typically manufactured from reinforced vinyl, canvas, or quilted fabric, it s

    Blatant Signs Your Turbocharger is Failing (And When to Replace it) (Post)

    If your semi truck turbocharger is failing, you'll encounter a few common signs. In this post, we'll cover what those are, and similar symptoms that aren't actually the turbo, but a related part.  Sig

    Haul of Fame: The Murder Pete Truck(Post)

    They call it the Murder Pete. Blacked-out, rugged, and raw, it’s a notorious big rig known for its “murdered out” style. Supported by the custom fab shop work of Chrome Shop Mafia (CMS) and supplied w

    CB Radios Ultimate Guide(Post)

    “10-4 Roger.” Despite the rise of messaging apps, GPS devices with voice-activated messaging, and push-to-talk (PTT) apps, the classic CB radio remains among the most trusted and well-used accessorie

    What are the Best Heavy-Duty Front Bumper Marker Lights?(Post)

    If you’re looking to start customizing your front bumper with marker lighting, your design options are nearly limitless. If you can dream it, we can build it, then ship it to you or an installation sh

    Best Peterbilt Chrome Upgrades (Interior & Exterior Cab)(Post)

    When it comes to upgrading your Peterbilt truck with chrome accessories, the aftermarket options are virtually endless.  If you're looking to add a bit more personalization to your rig than the tradit

    8 Signs Your Peterbilt 379 Steering Shaft Needs Replacement(Post)

    Steering issues on a Class 8 heavy-duty truck are a critical safety concern, and recognizing the bad steering shaft symptoms Peterbilt 379 trucks exhibit is vital for every owner-operator. If you noti

    How to Prep Your Truck for a Truck Show(Post)

    Getting a working semi-truck ready for a show is a massive undertaking that goes far beyond a standard weekend wash. A winning presentation separates immediate show preparation from long-term customiz

    How to Buy the Right Peterbilt 379 Radiator(Post)

    If you want to keep your diesel engine from overheating you need a well-functioning replacement Peterbilt radiator to properly carry the hot coolant through small passages, transfer engine heat into t

    What Are the Best Floor Mats for My Semi Truck Model?(Post)

    Semi truck floor mats aren’t just a protective element against food or drink spills or stains brought in by mud and snow; they can add some style to your commercial vehicle.  Why Floor Mats Matter in

    Most Common Replacement Parts for Freightliner FL70(Post)

    Freightliner FL70/FL80 Business Class trucks see a lot of wear and tear while running job sites. The parts that risk quick replacement are those that see the most pressure and stress, like the suspens

    How to Customize Your Semi Truck On a Budget(Post)

    Let's be honest. Customizing a semi truck with aftermarket parts and accessories isn't cheap, even if you're shopping for special bargain-priced deals. It also depends on how flexible your actual "bud

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  • FREE SHIPPING OVER $249
    Plastic-Zap Model Adhesive - .33 Oz.

    Plastic-Zap Model Adhesive - .33 Oz.

    AFTERMARKET

    $5.49
    .33 Ounce Plastic-Zap Model AdhesiveGet professional results with Plasti-Zap CA Medium Glue (PT19), the premium plastic model adhesive trusted by hobbyists and craftsmen. This fast-curing...
    CSM109009
    SKU:
    CSM109009
    Truck Class:
    Heavy Duty
    Product Type:
    Apparel
    Ready To Ship:
    Yes
    $5.49
    Qty in Cart: 0
    Price:
    $5.49
    Subtotal:
  • Spacer Block, 2.00 Inch C To C For Freightliner

    Spacer Block, 2.00 Inch C To C For Freightliner

    AFTERMARKET

    $47.23
    Spacer Block Replaces E-3821A, E-3821, 334-1151When your Freightliner build demands precision components, this premium spacer block ensures everything fits exactly as it should. Featuring a 3...
    03-05090090
    SKU:
    03-05090090
    Material Options:
    Steel
    Truck Class:
    Heavy Duty
    Make:
    Freightliner
    Product Type:
    Frame & Chassis
    $47.23
    Qty in Cart: 0
    Price:
    $47.23
    Subtotal:
  • Axle King Pin Bushing Service Set Replaces 60961628 For Hendrickson NXT

    Axle King Pin Bushing Service Set Replaces 60961628 For Hendrickson NXT

    AFTERMARKET

    $122.99
    Hendrickson NXT King Pin Bushing Service KitKeep your Hendrickson NXT suspension system operating smoothly with the Axle King Pin Bushing Service Set. This set includes driver and passenger side...
    29-05090094
    SKU:
    29-05090094
    Truck Class:
    Heavy Duty
    Make:
    Freightliner
    Make:
    Western Star
    Make:
    Mack
    Make:
    Bus
    Make:
    Volvo
    Make:
    Sterling
    Product Type:
    Frame & Chassis
    $122.99
    Qty in Cart: 0
    Price:
    $122.99
    Subtotal:
  • Single Leaf Parabolic Spring, Passenger Side RB344/RB345 For Freightliner Cascadia 113, 125

    Single Leaf Parabolic Spring, Passenger Side RB344/RB345 For Freightliner Cascadia 113, 125

    AUTOMANN USA

    $805.99
    Passenger Side Parabolic Single Leaf Spring* High Quality Parabolic Spring * Passenger Side * Single Leaf* Sold Individually * Warranty On Parabolic Springs Against Defects In Workmanship & Material...
    03-05090097
    SKU:
    03-05090097
    Material Options:
    Steel
    Truck Class:
    Heavy Duty
    Make:
    Freightliner
    Product Type:
    Frame & Chassis
    $805.99
    Qty in Cart: 0
    Price:
    $805.99
    Subtotal:
  • Leaf Parabolic Spring Driver Side - 59930-029 For Freightliner Cascadia

    Leaf Parabolic Spring Driver Side - 59930-029 For Freightliner Cascadia

    AUTOMANN USA

    $666.99
    Driver Side Parabolic Single Leaf Spring* High Quality Parabolic Spring* Driver Side * Sold Individually * Warranty On Parabolic Springs Against Defects In Workmanship & Material From Date Of...
    03-05090094
    SKU:
    03-05090094
    Material Options:
    Steel
    Position:
    Driver Side
    Truck Class:
    Heavy Duty
    Make:
    Freightliner
    Product Type:
    Frame & Chassis
    $666.99
    Qty in Cart: 0
    Price:
    $666.99
    Subtotal:
  • 25 3/8 Inch Fixed Torque Rod Replaces 18-58865-000 For Freightliner Cascadia

    25 3/8 Inch Fixed Torque Rod Replaces 18-58865-000 For Freightliner Cascadia

    AFTERMARKET

    $95.99
    Fixed Torque Rod With 1 1/8 Inch Diameter Shaft And 25 3/8 Inch Center To Center* High Quality Torque Rod * 25 3/8 Inch C To C* 1 1/8 Inch Shaft * Fixed Rod * (2) Bushings- Included * Cabin T Rod...
    03-05090092
    SKU:
    03-05090092
    Material Options:
    Steel
    Truck Class:
    Heavy Duty
    Make:
    Freightliner
    Product Type:
    Frame & Chassis
    $95.99
    Qty in Cart: 0
    Price:
    $95.99
    Subtotal:
  • Single Leaf Parabolic Spring, Driver Side RB344/RB345. For Freightliner Cascadia 113, 125

    Single Leaf Parabolic Spring, Driver Side RB344/RB345. For Freightliner Cascadia 113, 125

    AUTOMANN USA

    $805.99
    Driver Side Parabolic Single Leaf Spring Replaces 50304, 50278, 50278OE, 663* High Quality Parabolic Spring * Driver Side * Single Leaf* Sold Individually * Warranty On Parabolic Springs Against...
    03-05090096
    SKU:
    03-05090096
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Make:
    Freightliner
    Product Type:
    Frame & Chassis
    $805.99
    Qty in Cart: 0
    Price:
    $805.99
    Subtotal:
  • Cross Tube Assembly 1-1/4 -12 X 1.075 OD X 68.6 Inch - A13102C4293

    Cross Tube Assembly 1-1/4 -12 X 1.075 OD X 68.6 Inch - A13102C4293

    AFTERMARKET

    $322.99
    68.6 Inch C To C Cross Tube Assembly Replaces A13102C4293* High Quality Cross Tube Assembly* Consists Of  - (1) Cross Tube - (1) Tie Rod End (Passenger Side)  - (1) Tie Rod End (Driver Side)* 1-1/4...
    29-05090091
    SKU:
    29-05090091
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Length Options:
    68 Inch
    Product Type:
    Frame & Chassis
    $322.99
    Qty in Cart: 0
    Price:
    $322.99
    Subtotal:
  • 4 X 6 Inch 2 Degree Aluminum Spring Shim Wedge For International

    4 X 6 Inch 2 Degree Aluminum Spring Shim Wedge For International

    AUTOMANN USA

    $24.28
    2 Degree Spring Shim Wedge- 4 X 6 InchMaintain proper suspension alignment on your International truck with this 4 X 6 Inch 2 Degree Aluminum Spring Shim Wedge. Made from high-quality aluminum, it...
    07-05090093
    SKU:
    07-05090093
    Material Options:
    Aluminum
    Truck Class:
    Heavy Duty
    Make:
    International
    Product Type:
    Frame & Chassis
    $24.28
    Qty in Cart: 0
    Price:
    $24.28
    Subtotal:
  • Bearing Kit Replaces 00063313, E13999, E-13999, 6096140, 60961040, 60961-040, KPK1001, 5012108, 50,121,08, 85104370, 851104370 For International, Mack, Sterling, Western Star, Volvo, Freightliner

    Bearing Kit Replaces 00063313, E13999, E-13999, 6096140, 60961040, 60961-040, KPK1001, 5012108, 50,121,08, 85104370, 851104370 For International, Mack, Sterling, Western Star, Volvo, Freightliner

    AFTERMARKET

    $143.99
    Driver & Passenger Side Bearing KitKeep your truck running smoothly with this durable Bearing Kit for International, Mack, Sterling, Western Star, Volvo, and Freightliner vehicles. This kit comes...
    29-05090093
    SKU:
    29-05090093
    Position:
    Kit Full
    Product Type:
    Frame & Chassis
    Make:
    Sterling
    Make:
    International
    Make:
    Mack
    Make:
    Western Star
    Make:
    Freightliner
    Make:
    Volvo
    $143.99
    Qty in Cart: 0
    Price:
    $143.99
    Subtotal:
  • Shackle Hanger Replaces 1618102001 For Freightliner Cascadia 113, 125

    Shackle Hanger Replaces 1618102001 For Freightliner Cascadia 113, 125

    AFTERMARKET

    $40.49
    Driver Or Passenger Side Shackle Hanger, 7.656 Inch Center To Center* High Quality Shackle Hanger * 7.656 Inch C To C* Driver And Passenger Side * Sold Individually * Warranty On Shackle Hangers...
    03-05090098
    SKU:
    03-05090098
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Color:
    Black
    Make:
    Freightliner
    Product Type:
    Frame & Chassis
    $40.49
    Qty in Cart: 0
    Price:
    $40.49
    Subtotal:
  • 53.625 Inch Cross Tube, 1.25 Inch OD, 1.0in-16 ID For Meritor

    53.625 Inch Cross Tube, 1.25 Inch OD, 1.0in-16 ID For Meritor

    AFTERMARKET

    $164.99
    53.625 Inch Cross Tube* High Quality Cross Tube* 53.625 Inch* 1.25 Inch OD* 1.0 Inch-16 ID* Made In USA* Sold Individually* Warranty On Cross Tubes Against Defects In Workmanship & Material From Date...
    29-05090096
    SKU:
    29-05090096
    Length Options:
    53 Inch
    Material Options:
    Steel
    Truck Class:
    Heavy Duty
    Product Type:
    Frame & Chassis
    $164.99
    Qty in Cart: 0
    Price:
    $164.99
    Subtotal:
  • Cross Tube 1-1/8 -12 ID X1.50 OD X 55.50 Inch - A3102S3451

    Cross Tube 1-1/8 -12 ID X1.50 OD X 55.50 Inch - A3102S3451

    AFTERMARKET

    $125.99
    55.50 Inch Cross Tube Replaces A3102S3451* High Quality Cross Tube* 55.50 Inch* 1.50 Inch OD* 1-1/8 Inch-12 ID* Made In USA* Sold Individually* Warranty On Cross Tubes Against Defects In Workmanship...
    29-05090097
    SKU:
    29-05090097
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Length Options:
    55 1/2 Inch
    Product Type:
    Frame & Chassis
    $125.99
    Qty in Cart: 0
    Price:
    $125.99
    Subtotal:
  • Cross Tube 1-1/8 -12 ID X 1.75 OD X 61.5 Inch - A3102H4532

    Cross Tube 1-1/8 -12 ID X 1.75 OD X 61.5 Inch - A3102H4532

    AFTERMARKET

    $329.99
    Cross Tube Replaces A3102H4532* High Quality Cross Tube* 61.5 Inch* 1.75 Inch OD* 1-1/8 Inch-12 ID* Made In USA* Sold Individually* Warranty On Cross Tubes Against Defects In Workmanship & Material...
    29-05090098
    SKU:
    29-05090098
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Length Options:
    61 1/2 Inch
    Product Type:
    Frame & Chassis
    $329.99
    Qty in Cart: 0
    Price:
    $329.99
    Subtotal:
  • Intake Pre-Filter For LAF3551 Air Filter

    Intake Pre-Filter For LAF3551 Air Filter

    FREEDOM AIR FILTERS

    $76.99
    Intake Pre-Filter For P153551 Air Filter* High Quality Polyester Mesh Pre-Filter* This Is A Pre-Filter Wrap That Covers The Air Filter Element. Air Filter Element Not Included. Sold Separately.* Fits...
    09-0723000
    SKU:
    09-0723000
    Truck Class:
    Heavy Duty
    Make:
    Freightliner
    Make:
    Western Star
    Make:
    Kenworth
    Make:
    Peterbilt
    Product Type:
    Engine Parts
    $76.99
    Qty in Cart: 0
    Price:
    $76.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Cab Fresh HVAC Pre-Filter W/ Black Housing For Peterbilt & Kenworth

    Cab Fresh HVAC Pre-Filter W/ Black Housing For Peterbilt & Kenworth

    CAB FRESH FILTER CO.

    $50.99
    Air Filter HVAC Pre-FilterHelp protect your cab's HVAC system with this complete pre-filter assembly featuring a durable housing and replaceable filter element. Designed to capture dust, debris, and...
    29-091300
    SKU:
    29-091300
    Location:
    Made In USA
    Truck Class:
    Heavy Duty
    Make:
    Kenworth
    Make:
    Peterbilt
    Product Type:
    Engine Parts
    Ready To Ship:
    Yes
    $50.99
    Qty in Cart: 0
    Price:
    $50.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Interior Fresh Air Filter For Peterbilt

    Interior Fresh Air Filter For Peterbilt

    CAB FRESH FILTER CO.

    $22.07
    Peterbilt Interior Fresh Air Filter AssemblyKeep the inside of your cab fresh with this aftermarket interior filter from CAB Fresh. This filter features internal antimicrobials that stops mold...
    01-1503026
    SKU:
    01-1503026
    Truck Class:
    Heavy Duty
    Location:
    Made In USA
    Material Options:
    Cloth
    Make:
    Peterbilt
    Product Type:
    Interior
    Ready To Ship:
    Yes
    $22.07
    Qty in Cart: 0
    Price:
    $22.07
    Subtotal:
  • FREE SHIPPING OVER $249
    Cab Fresh Filter Only For Freightliner Cascadia, Century, Columbia & Coronado

    Cab Fresh Filter Only For Freightliner Cascadia, Century, Columbia & Coronado

    CAB FRESH FILTER CO.

    $17.91
    Cab Fresh Filter Only Fits FreightlinerFind your Cab Fresh Replacement Filter at 4 State Trucks. The highly effective filter is made with a primary layer and charcoal layer that traps and eliminates...
    03-091306
    SKU:
    03-091306
    Location:
    Made In USA
    Truck Class:
    Heavy Duty
    Material Options:
    Cloth
    Make:
    Freightliner
    Product Type:
    Exterior
    $17.91
    Qty in Cart: 0
    Price:
    $17.91
    Subtotal:
  • FREE SHIPPING OVER $249
    Air Filter Assembly For HVAC For Peterbilt & Kenworth

    Air Filter Assembly For HVAC For Peterbilt & Kenworth

    CAB FRESH FILTER CO.

    $38.75
    Air Filter Assembly Fits Peterbilt & KenworthAt 4 State Trucks we offer aftermarket CAB Fresh air filter assemblies for Peterbilt 567 and 579 models, and Kenworth T680 and T880 models. The air filter...
    29-1503002
    SKU:
    29-1503002
    Truck Class:
    Heavy Duty
    Location:
    Made In USA
    Material Options:
    Cloth
    Make:
    Peterbilt
    Make:
    Kenworth
    Product Type:
    Interior
    $38.75
    Qty in Cart: 0
    Price:
    $38.75
    Subtotal:
  • FREE SHIPPING OVER $249
    Pre-Filter For Air Cleaner For Kenworth & Peterbilt

    Pre-Filter For Air Cleaner For Kenworth & Peterbilt

    CAB FRESH FILTER CO.

    $33.71
    Pre-Filter For Air Cleaner Fits Kenworth & PeterbiltWe offer aftermarket CAB Fresh pre-filters for air cleaners that fits Kenworth T680, T880, Peterbilt 567 and 579 big rigs. It features activated...
    29-0905708
    SKU:
    29-0905708
    Truck Class:
    Heavy Duty
    Location:
    Made In USA
    Material Options:
    Cloth
    Make:
    Peterbilt
    Make:
    Kenworth
    Product Type:
    Exterior
    Ready To Ship:
    Yes
    $33.71
    Qty in Cart: 0
    Price:
    $33.71
    Subtotal:
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