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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

    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

    Best Semi Truck Camera Systems (Buyer's Guide)(Post)

    Backup cameras can be a downright lifesaving accessory for truck drivers. But with countless commercial camera product models available, it's hard to sift through it all and find the right fit.  Ke

    How A/C Driers Work on Your Semi Truck(Post)

    Ever wondered why your semi truck’s AC runs smoothly, or why it suddenly stops working? Your A/C receiver, drier, or accumulator is the unsung heroe of your commercial vehicle.  Maintaining your A/C d

    Are Vendetta Truck Seats Worth It? (Everything You Need to Know)(Post)

    Professional drivers spend thousands of hours behind the wheel every year. Stock truck seats wear out, lose support, and leave you fatigued after long shifts. Vendetta truck seats offer a premium solu

    9 Costly Exhaust Installation Mistakes Truck Owners Should Avoid(Post)

    Replacing exhaust stacks on a Peterbilt 379 is a bit easier than some other truck models, the installation process can still be time-consuming and tedious.  If you're an owner-operator installing new

    Top 4 Semi Truck Power Inverters to Fully Charge Your Appliances(Post)

    Semi truck power inverters are critical for truckers who need more comfort, productivity, safety, and convenience on long-haul truck drives. Key Takeaways Size the inverter for total wattage, startu

    Seasonal Semi Truck Maintenance Checklist(Post)

    Freezing winter weather temperatures, heavy snow, ice, and road salt take an unseen toll on your semi truck. Corrosion directly affects your semi truck brakes, electrical terminals,  suspension mounts

    The Best Heavy Duty Shocks for Semi Trucks(Post)

    Aside from your truck's engine, heavy-duty shocks are among the most critical parts that affect ride quality, suspension performance, and the amount of wear on tires. Here’s a quick rundown of the bes

    Semi Truck Exhaust Manifold Buyer's Guide(Post)

    This guide covers everything you need to know about aftermarket semi truck manifolds, alongside useful information about the various manifold brands we sell. After reading, you'll be able to accuratel

    Ultimate Guide: Semi Truck Fuel Tank Accessories(Post)

    Wondering about the best aftermarket fuel tank accessories and parts to get? Here's a quick guide on the various types of semi truck fuel tank accessories, from locking caps to fuel tank covers, and

    Haul of Fame: Workin’ Man Blues — Bryan Martin’s 1987 Peterbilt 359 Reborn(Post)

    In the world of classic trucking, some rigs simply haul freight—while others become legends on the road. Every so often, a truck comes along that represents far more than horsepower, chrome, and polis

    Semi Truck Exhaust Systems: Parts, Materials, Fitment & Repair Guide(Post)

    How a Semi Truck Exhaust System Works A heavy-duty exhaust system has three main jobs: route burned gases safely away from the engine and cab, control combustion noise, and maintain proper exhaust flo

    Semi Truck Brake System Maintenance Guide(Post)

    Semi-truck brake defects account for 30% of out-of-service violations, according to CVSA’s 2025 International Roadcheck. OOS violations will get you shut down on the spot - no matter what it is.  Whet

    Ultimate Guide to Semi Truck Fifth Wheels(Post)

    The reality is, a truly comprehensive semi truck fifth wheel guide could fill volumes — novellas, even. However, this post encompasses a very broad, general overview of fifth wheels on semi trucks. 

  • Product
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  • Price
  • Subtotal
  • Momentary 3 Way HVAC Rocker Switch - Replaces RD-5-9257-0 For Western Star 5700XE 2016

    Momentary 3 Way HVAC Rocker Switch - Replaces RD-5-9257-0 For Western Star 5700XE 2016

    OPP - ORIGINAL PARTS PROGRAM

    $54.99
    3 Way HVAC Momentary Rocker Switch For Western Star 5700XE 2016* High Quality Momentary Rocker Switch * 3 Way * HVAC* Fits Western Star * Direct OE Replacement Part* Sold Individually* Warranty On...
    14-1503005OE
    SKU:
    14-1503005OE
    Color:
    Black
    Truck Class:
    Heavy Duty
    Material Options:
    Plastic/Poly
    Make:
    Western Star
    OEM:
    OEM
    Product Type:
    Interior
    $54.99
    Qty in Cart: 0
    Price:
    $54.99
    Subtotal:
  • FREE SHIPPING OVER $249
    12 High Power Diode Beacon Light W/ 5 Built-In Flash Patterns - Amber LED / Clear Lens

    12 High Power Diode Beacon Light W/ 5 Built-In Flash Patterns - Amber LED / Clear Lens

    UNITED PACIFIC

    $128.99
    Amber LED Clear Lens Permanent-Mount Beacon Light W/ 5 Flash PatternsEquip your truck with SAE J845 Class 1 safety-compliant beacon light with 12 high power LEDs. This 5 inch permanent mount light...
    09-160901039
    SKU:
    09-160901039
    Truck Class:
    Universal
    Color:
    Amber
    Make:
    Universal Items
    Diameter Options:
    4 1/2 Inch
    Shape Options:
    Round
    Material Options:
    Plastic/Poly
    Product Type:
    Lighting
    Ready To Ship:
    Yes
    $128.99
    Qty in Cart: 0
    Price:
    $128.99
    Subtotal:
  • Limited Quantity Available
    Black Guide 682-C Headlight Housing W/ 5 Diode LED Signal Light - No Bulb

    Black Guide 682-C Headlight Housing W/ 5 Diode LED Signal Light - No Bulb

    UNITED PACIFIC

    $197.99 - $200.99
    Maximize the front end of your rig with the Black Guide 682-C Headlight Housing featuring a 5-Diode LED Turn Signal Light. Built with a gloss black powder-coated steel housing, matching top cover,...
    PPR_204528
    SKU:
    PPR_204528
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Shape Options:
    Round
    Make:
    Kenworth
    Make:
    International
    Make:
    Sterling
    Make:
    GMC
    Make:
    Peterbilt
    Make:
    Freightliner
    Make:
    Mack
    Light Options:
    Without Lights
    Color:
    Black
    Diameter Options:
    7 Inch
    Product Type:
    Lighting
    Ready To Ship:
    Yes
    $197.99 - $200.99
    Qty in Cart: 0
    Price:
    $197.99 - $200.99
    Subtotal:
  • Stainless Guide 682-C Headlight W/ H6024 Halogen Bulb, 5 LED Signal Light

    Stainless Guide 682-C Headlight W/ H6024 Halogen Bulb, 5 LED Signal Light

    UNITED PACIFIC

    $254.99
    Maximize your ride with this stainless steel Guide 682-C headlight, built to combine classic styling with dependable illumination. Featuring a 304 stainless steel housing and bezel, this aftermarket...
    PPR_204579
    SKU:
    PPR_204579
    Truck Class:
    Heavy Duty
    Material Options:
    Stainless Steel
    Shape Options:
    Round
    Make:
    International
    Make:
    Sterling
    Make:
    GMC
    Make:
    Peterbilt
    Make:
    Freightliner
    Make:
    Mack
    Make:
    Kenworth
    Product Type:
    Lighting
    $254.99
    Qty in Cart: 0
    Price:
    $254.99
    Subtotal:
  • 5 Inch Articulating LED Flood Light W/ E-Coated Aluminum Housing - 4500 Lumen

    5 Inch Articulating LED Flood Light W/ E-Coated Aluminum Housing - 4500 Lumen

    BUYERS PRODUCTS

    $114.99
    4500 Lumen LED Articulating Flood Light W/ Dual Swivels At Base & Light Head* High Quality Flood Light* Round Bright LED Clear * 4500 Lumen * Dimensions  - 5 Width  - 8.54 Inch Height  - 6.57 Inch...
    09-160900032
    SKU:
    09-160900032
    Color:
    Black
    Lumens:
    2001 to 4999 Lumens
    Truck Class:
    Universal
    Material Options:
    Aluminum
    Make:
    Universal Items
    Product Type:
    Lighting
    $114.99
    Qty in Cart: 0
    Price:
    $114.99
    Subtotal:
  • Window Switch, Passenger Side For Freightliner

    Window Switch, Passenger Side For Freightliner

    AFTERMARKET

    $43.29
    Passenger Side Window SwitchReplace your worn or faulty Freightliner passenger side window switch with this high-quality 10-pin replacement. Engineered for smooth and precise operation, it ensures...
    03-153000024
    SKU:
    03-153000024
    Truck Class:
    Heavy Duty
    Material Options:
    Plastic/Poly
    Make:
    Freightliner
    Product Type:
    Interior
    $43.29
    Qty in Cart: 0
    Price:
    $43.29
    Subtotal:
  • Black Billet Style Groove LED Headlight With 5 Diodes And Center Cross Bar Accent

    Black Billet Style Groove LED Headlight With 5 Diodes And Center Cross Bar Accent

    UNITED PACIFIC

    $592.99 - $652.99
    Upgrade your lighting with the black billet style groove LED headlight featuring 5 diodes and a center cross bar accent, designed for select applications including Peterbilt 388 and 389 models. Built...
    PPR_203127
    SKU:
    PPR_203127
    Truck Class:
    Heavy Duty
    Shape Options:
    Round
    Make:
    International
    Make:
    Sterling
    Make:
    GMC
    Make:
    Peterbilt
    Make:
    Freightliner
    Make:
    Mack
    Make:
    Kenworth
    Material Options:
    Aluminum
    Color:
    Black
    Product Type:
    Lighting
    $592.99 - $652.99
    Qty in Cart: 0
    Price:
    $592.99 - $652.99
    Subtotal:
  • 5 Inch Articulating LED Spot Light W/ E-Coated Aluminum Housing - 4500 Lumen

    5 Inch Articulating LED Spot Light W/ E-Coated Aluminum Housing - 4500 Lumen

    BUYERS PRODUCTS

    $114.99
    4500 Lumen LED Articulating Spot Light W/ Dual Swivels At Base & Light Head* High Quality Spot Light* Light Color Clear* Aluminum Housing* Lens Made Of Polycarbonate* Dimension  - 5 Inch Width  - 8...
    09-160900033
    SKU:
    09-160900033
    Color:
    Black
    Lumens:
    2001 to 4999 Lumens
    Truck Class:
    Universal
    Material Options:
    Aluminum
    Make:
    Universal Items
    Product Type:
    Lighting
    $114.99
    Qty in Cart: 0
    Price:
    $114.99
    Subtotal:
  • 4.578 Inch Round 5 Diode Spot, 20 Diode Strobe Amber LED Spot Light Work Lamp

    4.578 Inch Round 5 Diode Spot, 20 Diode Strobe Amber LED Spot Light Work Lamp

    TRUX ACCESSORIES

    $77.99
    1300 Effective Lumen 5 Diode Spot Light & 20 Diode Strobe Light4 State Trucks offers this round white spot LED work lamp with a multi pulse amber strobe function. It projects a spot beam up to 270...
    09-16090004
    SKU:
    09-16090004
    Color:
    Amber/White
    Truck Class:
    Universal
    Lumens:
    1001 to 2000 Lumens
    Make:
    Universal Items
    Material Options:
    Plastic/Poly
    Product Type:
    Lighting
    $77.99
    Qty in Cart: 0
    Price:
    $77.99
    Subtotal:
  • BESTfit 6 To 5 Inch Chrome Miter Cut Exhaust Stack

    BESTfit 6 To 5 Inch Chrome Miter Cut Exhaust Stack

    BESTFIT TRUCK PARTS

    $141.99 - $504.99
    Give your truck a sleek, professional look while improving exhaust efficiency with the BESTfit 6 to 5 Inch Chrome Miter Cut Exhaust Stack. Available in a variety of lengths from 36 to 120 inches,...
    PPR_202128
    SKU:
    PPR_202128
    Truck Class:
    Universal
    Style Options:
    Miter Cut
    Material Options:
    Steel
    Make:
    Universal Items
    Finish Options:
    Chrome-Plated
    Product Type:
    Exhaust
    Height Options:
    120 Inch
    Height Options:
    72 Inch
    Height Options:
    108 Inch
    Height Options:
    114 Inch
    Height Options:
    84 Inch
    Height Options:
    96 Inch
    Height Options:
    36 Inch
    Diameter Options:
    6-5 Inch
    Height Options:
    60 Inch
    Height Options:
    48 Inch
    Diameter Options:
    6 To 5 Inch
    Ready To Ship:
    Yes
    $141.99 - $504.99
    Qty in Cart: 0
    Price:
    $141.99 - $504.99
    Subtotal:
  • Gabriel HD Fleetline Cab Shock Absorber Replaces 83081 For Kenworth, Peterbilt

    Gabriel HD Fleetline Cab Shock Absorber Replaces 83081 For Kenworth, Peterbilt

    GABRIEL

    $48.18
    Gabriel HD Fleetline Kenworth Peterbilt Cab Shock Absorber 83081Trust the Gabriel HD Fleetline Cab Shock Absorber to keep your Kenworth or Peterbilt cab stable under heavy loads. Boasting a 9.98-inch...
    29-10140002
    SKU:
    29-10140002
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Make:
    Kenworth
    Make:
    Universal Items
    Make:
    Peterbilt
    Product Type:
    Exterior
    Ready To Ship:
    Yes
    $48.18
    Qty in Cart: 0
    Price:
    $48.18
    Subtotal:
  • FREE SHIPPING OVER $249
    5 Inch Aluminized Steel U-Pipe ZTKWACE6 by BESTfit For Kenworth AeroCab

    5 Inch Aluminized Steel U-Pipe ZTKWACE6 by BESTfit For Kenworth AeroCab

    BESTFIT TRUCK PARTS

    $190.99
    Kenworth Large Oval Muffler ReplacementThis U-shaped aluminized steel pipe connects the exhaust manifold to the exhaust pipe, reducing noise and vibration while keeping the exhaust gas away from the...
    02-080100
    SKU:
    02-080100
    Truck Class:
    Heavy Duty
    Diameter Options:
    5 Inch
    Make:
    Kenworth
    Product Type:
    Exhaust
    Ready To Ship:
    Yes
    Material Options:
    Aluminized Steel
    Location:
    Made In USA
    $190.99
    Qty in Cart: 0
    Price:
    $190.99
    Subtotal:
  • Stainless Guide 682-C H4 Headlight W/ 34 Diode Position, Vintage 5 Diode Turn Signal

    Stainless Guide 682-C H4 Headlight W/ 34 Diode Position, Vintage 5 Diode Turn Signal

    UNITED PACIFIC

    $322.99
    Upgrade your front-end lighting with the Stainless Guide 682-C H4 Headlight featuring a 34 diode position light and vintage 5 diode turn signal. Designed for select heavy-duty truck applications,...
    PPR_204663
    SKU:
    PPR_204663
    Truck Class:
    Heavy Duty
    Material Options:
    Stainless Steel
    Shape Options:
    Round
    Make:
    International
    Make:
    Sterling
    Make:
    GMC
    Make:
    Peterbilt
    Make:
    Freightliner
    Make:
    Mack
    Make:
    Kenworth
    Product Type:
    Lighting
    $322.99
    Qty in Cart: 0
    Price:
    $322.99
    Subtotal:
  • S44 Series ISR Type U Joint Greaseable 5-3022-1X

    S44 Series ISR Type U Joint Greaseable 5-3022-1X

    AUTOMANN USA

    $17.80
    Replacement Universal Inside Snap Ring U-Joint* High Quality Universal Joint* Dimensions:  - 3.65 Inch Length  - Each Joint Is 1.12 Inch Diameter* Inside Snap Ring Type* Heat Treated Caps*...
    09-05210009
    SKU:
    09-05210009
    Length Options:
    3 5/8 Inch
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $17.80
    Qty in Cart: 0
    Price:
    $17.80
    Subtotal:
  • Chrome Guide 682-C Headlight W/ H4 Halogen Bulb, 5 Diode Original Style Signal Light

    Chrome Guide 682-C Headlight W/ H4 Halogen Bulb, 5 Diode Original Style Signal Light

    UNITED PACIFIC

    $224.99
    Improve your exterior lighting with the Chrome Guide 682-C Headlight featuring an H4 halogen bulb and original-style 5 diode LED signal light. Designed for select heavy-duty applications, this...
    PPR_204667
    SKU:
    PPR_204667
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Shape Options:
    Round
    Make:
    International
    Make:
    Sterling
    Make:
    GMC
    Make:
    Peterbilt
    Make:
    Freightliner
    Make:
    Mack
    Make:
    Kenworth
    Finish Options:
    Chrome-Plated
    Product Type:
    Lighting
    $224.99
    Qty in Cart: 0
    Price:
    $224.99
    Subtotal:
  • Brunner Custom Enclosed Light Bar W/ 8 - 4 In Rnd, 5 - 2 In Rnd LED Lights W/ Square Corners

    Brunner Custom Enclosed Light Bar W/ 8 - 4 In Rnd, 5 - 2 In Rnd LED Lights W/ Square Corners

    BRUNNER FABRICATION

    $1,783.99
    Rear Light Bar W/ 8 - 4 Inch Round & 5 - 2 Inch Round LED Lights By Brunner FabricationIf you are wanting to add lights to your cab, 4 State Trucks offers this high quality Brunner custom enclosed...
    09-021013
    SKU:
    09-021013
    Location:
    Made In USA
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Finish Options:
    Polished
    Light Options:
    With Lights
    Material Options:
    Stainless Steel
    Product Type:
    Frame & Chassis
    $1,783.99
    Qty in Cart: 0
    Price:
    $1,783.99
    Subtotal:
  • Stainless Guide 682-C Headlight W/ H4 Bulb, Original Style 5 Diode LED Turn Signal Light

    Stainless Guide 682-C Headlight W/ H4 Bulb, Original Style 5 Diode LED Turn Signal Light

    UNITED PACIFIC

    $254.99
    The Stainless Guide 682-C Headlight with H4 Bulb and Original Style 5 Diode LED Turn Signal Light combines classic styling with durable materials. Featuring a 304 stainless steel housing and bezel,...
    PPR_204659
    SKU:
    PPR_204659
    Truck Class:
    Heavy Duty
    Material Options:
    Stainless Steel
    Shape Options:
    Round
    Make:
    Kenworth
    Make:
    International
    Make:
    Sterling
    Make:
    GMC
    Make:
    Peterbilt
    Make:
    Freightliner
    Make:
    Mack
    Product Type:
    Lighting
    $254.99
    Qty in Cart: 0
    Price:
    $254.99
    Subtotal:
  • FREE SHIPPING OVER $249
    AC Compressor With Clutch Seltec QP7H15-4883 - Replaces RD-5-12330-0P By BESTfit

    AC Compressor With Clutch Seltec QP7H15-4883 - Replaces RD-5-12330-0P By BESTfit

    BESTFIT TRUCK PARTS

    $205.99
    BESTfit Sanden Type 4883 AC CompressorThe Bestfit AC Compressor with Clutch - Seltec QP7H15-4883 - Sanden Replacement has undergone engineering and testing to ensure years of trouble-free operation...
    09-070008
    SKU:
    09-070008
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Engine Parts
    $205.99
    Qty in Cart: 0
    Price:
    $205.99
    Subtotal:
  • 3.375 Inch Mechanical Tachometer W/ Hourmeter, Black Face, White Pointer, Chrome Bezel, .5-1 Ratio

    3.375 Inch Mechanical Tachometer W/ Hourmeter, Black Face, White Pointer, Chrome Bezel, .5-1 Ratio

    ISSPRO

    $232.99
    3.375 Inch Mechanical Tachometer W/ Hourmeter, Black Face, White Pointer, Chrome Bezel & .5-1 Ratio* High Quality Mechanical Tachometer* 3-3/8 Inch Mechanical Tachometer* 2.5K With Hourmeter * 0.5-1...
    09-150100443
    SKU:
    09-150100443
    Diameter Options:
    3 Inch
    Truck Class:
    Universal
    Location:
    Made In USA
    Color:
    White
    Style Options:
    Analog
    Shape Options:
    Round
    Make:
    Universal Items
    Product Type:
    Interior
    Ready To Ship:
    Yes
    $232.99
    Qty in Cart: 0
    Price:
    $232.99
    Subtotal:
  • Stainless Classic Embossed Stripe 5 Diode Headlight W/ 4 Diode Dual Function Signal Light

    Stainless Classic Embossed Stripe 5 Diode Headlight W/ 4 Diode Dual Function Signal Light

    UNITED PACIFIC

    $439.99
    Bring classic styling and modern LED accents to your truck with this Stainless Classic Embossed Stripe 5 Diode Headlight featuring a 4 Diode dual-function signal light. Built with a 304 stainless...
    PPR_204677
    SKU:
    PPR_204677
    Truck Class:
    Heavy Duty
    Style Options:
    Classic Style
    Material Options:
    Stainless Steel
    Shape Options:
    Round
    Make:
    Peterbilt
    Make:
    Freightliner
    Make:
    Mack
    Make:
    International
    Make:
    GMC
    Make:
    Sterling
    Make:
    Kenworth
    Product Type:
    Lighting
    $439.99
    Qty in Cart: 0
    Price:
    $439.99
    Subtotal:
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