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What Is DEF on a Semi Truck? Fluid, Filters, Problems & Maintenance(Post)
What Is a DEF (Diesel Exhaust Fluid) Filter? A DEF (Diesel Exhaust Fluid) filter protects the SCR (Selective Catalytic Reduction) system by removing dirt, debris, and contaminants from the DEF supply
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
Buyers Guide to Aftermarket Air Breather Panels(Post)Decorative light panels are an outstanding way to start personalizing your truck. Air breather panels offer tremendous visual appeal and can elevate your big rig's nighttime appearance. There are five
Semi-Truck Mattress Sizes: Fitment Chart & Buying Guide(Post)Looking for the right sized semi truck mattress? Every long-haul trucker should prioritize spending a sizeable portion of their budget on a quality mattress and driver's seat. That's where you spend
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
What Does the FASS Fuel System Do? (Post)Diesel fuel often contains air, vapor, water, and fine debris - harmful contaminants that hurt fuel pressure stability, injector life, and injection pump health. FASS (fuel air separation system) help
Preventative Maintenance Checklist for Semi Trucks(Post)In this post, we’ll cover the need for a semi truck preventative maintenance checklist, and some of the common replacement parts you can buy online and ship directly to your specified address. Key Ta
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
Semi Truck DPF Systems: How They Work, Problems, Regeneration & Parts(Post)Let’s break down how to maintain peak emissions performance and avoid excessive repairs on big truck exhausts. Key Takeaways DPFs trap soot, while DEF reduces harmful nitrogen oxide emissions. Watch
What Year Did Semi Trucks Get DPF Systems?(Post)When Did Semi Trucks Start Using DPF Systems? EPA Rules Explained Diesel particulate filters (DPFs) became standard equipment on new U.S. heavy-duty diesel trucks starting with the 2007 engine model y
Diesel Truck Engine Maintenance Guide(Post)Semi truck engines can last up to one million miles, or more, before they need to be rebuilt or replaced. During their lifespan, engine system parts experience a lot of heat and pressure, eventually
Spring Semi-Truck Maintenance: 5 Checks to Prevent Expensive Repairs(Post)Winter weather causes corrosion, contamination, wear, and hidden damage. Spring is a great time to inspect the truck thoroughly and stop small problems from becoming giant disasters. Five Spring Main
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 Emergency Kit Accessories to Deter Roadside Breakdowns(Post)It’s cold, and late, and you’re suddenly stalled at the side of the road because your semi truck won’t start or won’t budge. If this sounds like a truck driver’s worst nightmare, it’s because it is.
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
Wet Line Kits for Semi Trucks 101: The Basics Explained(Post)Ready to transform your rig into a hydraulic powerhouse? A semi-truck wet line kit can do the trick. One of these will turn your truck from a normal highway hauler into a workhorse capable of handlin
How to Winterize a Semi Truck: The Complete Driver Checklist(Post)Cold winter weather, freezing temperatures, snow-covered roads, and adverse weather conditions wreak havoc on semi truck engines and equipment, and can lead to costly repairs if damage occurs. Don’t c
Spare Semi Truck Parts Every Owner-Operator Should Keep(Post)For owner-operators, having the right spare parts on hand is the difference between experiencing devastating downtime and productive uptime. You don’t want to be caught on the side of the road waiting
What are the Most Frequently Replaced Semi Truck Parts?(Post)The parts of a class 8 truck that see the most frequent repair and replacement are areas where tons of heat, friction, and pressure occur. No-brainer, right? Here are some of the most frequently repl
Semi Truck DPF Box Covers & Slipcovers: Fitment Guide(Post)Semi Truck DPF Box Covers: Types, Fitment & Replacement What Is a DPF Box Cover on a Semi Truck? DPF box covers are exterior panels designed to conceal or protect the aftertreatment housing. They do n
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304 SS Turbo Exhaust Adapter Replaces 04-17094-031
BESTFIT TRUCK PARTS
$926.99Stainless Steel Exhaust Turbo Adapter With 5 Inch Diameter* High Quality Exhaust Turbo Adapter* With Pyrometer Fitting* Made Of 304 Stainless Steel* 5 Inch OD* Sold Individually* Warranty On Exhaust...03-08140310- SKU:
- 03-08140310
- Material Options:
- Stainless Steel
- Truck Class:
- Heavy Duty
- Diameter Options:
- 5 Inch
- Make:
- Freightliner
- Product Type:
- Exhaust
$926.99Qty in Cart: 0Price:$926.99Subtotal: -
1-Piece Stainless Steel Diesel Particulate Filter Replaces 21905492, 85001353 For Mack/Volvo MP7/MP8 Engines
GLOBAL EMISSIONS
$2,070.991-Piece Stainless Steel Diesel Particulate Filter Fits Mack/Volvo MP7 & MP8 Engines* High Quality Diesel Particulate Filter* Made Of Stainless Steel * Exclusive 1-Piece Canister Design For...29-080600031- SKU:
- 29-080600031
- Truck Class:
- Heavy Duty
- Material Options:
- Stainless Steel
- Make:
- Volvo
- Make:
- Mack
- Product Type:
- Exhaust
$2,070.99Qty in Cart: 0Price:$2,070.99Subtotal: -
3/8 Inch NPT Supply Line Filter ESL2550, RSL2550
AUTOMANN USA
$35.86Supply Line Filter 3/8 Inch NPT Inlet & Outlet* High Quality Supply Line Filter* 3/8 Inch NPT Inlet And Outlet* Sold Individually* Warranty On Supply Line Filters Against Defects In Workmanship &...19-05170031- SKU:
- 19-05170031
- Product Type:
- Trailer
- Truck Class:
- Heavy Duty
- Make:
- Trailer
- Diameter Options:
- 3/8 Inch
$35.86Qty in Cart: 0Price:$35.86Subtotal: -
FREE SHIPPING
MV3 Dash Air Valve - Replaces K031483, K031484, K031485
OPP - ORIGINAL PARTS PROGRAM
$443.99MV-3 Type Push - Pull Tractor-Trailer Dash Air Control Brake Valve - 3/8 Inch Ports, 1/4 Inch -20 Mounting HolesThe MV3 Air Control Valve is a key component for your truck's air parking brake system...K031485- SKU:
- K031485
- Truck Class:
- Heavy Duty
- Color:
- Black
- Material Options:
- Plastic/Poly
- Product Type:
- Interior
$443.99Qty in Cart: 0Price:$443.99Subtotal: -
FREE SHIPPING OVER $249
Aluminum HEXTHREAD ® Filter Cartridge Assembly Compatible With XTRACTOR ® XTR-8856 And XTRACTOR ® XTR-8058 For Trailer Axles
THE HUB CORPORATION
$45.99HEXTHREAD Filter Cartridge For Trailer Axle ApplicationsThe HEXTHREAD Filter Cartridge is a high-quality replacement filtration component designed for trailer axle hub caps using the XTRACTOR...19-20200031- SKU:
- 19-20200031
- Product Type:
- Trailer
- Material Options:
- Aluminum
- Make:
- Trailer
- Ready To Ship:
- Yes
$45.99Qty in Cart: 0Price:$45.99Subtotal: -
Black Guide H6024 Halogen Headlight W/ 5 LED Vintage 682-C Series Top Mount Light
UNITED PACIFIC
$212.99 - $225.99Bring a classic heavy-duty look together with modern functionality using the Black Guide H6024 halogen headlight with 5 LED Vintage 682-C Series top mount light. This style features a gloss black...PPR_203137- SKU:
- PPR_203137
- Truck Class:
- Heavy Duty
- Shape Options:
- Round
- Make:
- GMC
- Make:
- Peterbilt
- Make:
- Freightliner
- Make:
- Mack
- Make:
- Kenworth
- Make:
- International
- Make:
- Sterling
- Material Options:
- Aluminum
- Product Type:
- Lighting
$212.99 - $225.99Qty in Cart: 0Price:$212.99 - $225.99Subtotal: -
CSM 36 Inch LED Glow Tube Light - Purple
CHROME SHOP MAFIA
$42.65Purple 3 Foot Flush Mount Neon Glow LED Tube Light By Chrome Shop MafiaThis 36-inch-long purple glow tube light creates a brilliant neon look with 162 LEDs per meter and works with 12-volt systems...09-163003102- SKU:
- 09-163003102
- Color:
- Purple
- Length Options:
- 36 Inch
- Truck Class:
- Universal
- Material Options:
- Plastic/Poly
- Make:
- Universal Items
- Product Type:
- Lighting
$42.65Qty in Cart: 0Price:$42.65Subtotal: -
Mud Flap End Red Reflectors 1-5/8 Inch - 031-01269
AUTOMANN USA
$8.711-5/8 Inch Red Reflectors End Caps For Round Spring Loaded Mud Flap HangersThese Mud Flap End Reflectors attach effortlessly to round spring loaded mud flap hangers. Each cap measures 1 5/8 inches...09-05070070- SKU:
- 09-05070070
- Truck Class:
- Universal
- Material Options:
- Plastic/Poly
- Make:
- Universal Items
- Product Type:
- Mud Flaps
$8.71Qty in Cart: 0Price:$8.71Subtotal: -
Rear Driveshaft Assembly Replaces 26042110, 26050319, 7849724 For GMC, Chevrolet K1500, Tahoe
DAYTON / DORMAN
$569.99Rear Driveshaft Assembly Fits GMC, Chevrolet K1500 & Tahoe* High Quality Rear Driveshaft Assembly* Made Of Steel* Axle Nut Included: No* CV Joints Included: No* Driveshaft Length (In): 49.25 In*...12-052100031- SKU:
- 12-052100031
- Truck Class:
- Heavy Duty
- Make:
- Mack
- Product Type:
- Frame & Chassis
$569.99Qty in Cart: 0Price:$569.99Subtotal: -
Stainless Guide 682-C Headlight W/ H6014 Sealed Beam Bulb, Original Style 5 Diode Amber LED Turn Signal Light For Peterbilt, Freightliner, International & Mack
UNITED PACIFIC
$236.99Stainless Guide 682-C H6014 Halogen Headlight W/ Original Style 5 Diode Amber LED Turn Signal Light* High Quality Headlight * 304 Stainless Steel Headlight Housing And Bezel* H6014 Halogen Seal Beam...29-160600316- SKU:
- 29-160600316
- Truck Class:
- Heavy Duty
- Diameter Options:
- 7 Inch
- Shape Options:
- Round
- Material Options:
- Stainless Steel
- Make:
- International
- Make:
- Sterling
- Make:
- GMC
- Make:
- Peterbilt
- Make:
- Freightliner
- Make:
- Mack
- Make:
- Kenworth
- Color:
- Amber
- Product Type:
- Lighting
$236.99Qty in Cart: 0Price:$236.99Subtotal: -
Stainless Guide 682-C H4 Headlight W/ 34 White LED Position Light, 5 Diode Amber/Clear LED Turn Signal Light For Peterbilt, Freightliner, International & Mack
UNITED PACIFIC
$315.99Stainless Guide 682-C H4 Halogen Headlight W/ 34 White LED Position Light, 5 Amber/Clear LED Turn Signal Light* High Quality Headlight * 304 Stainless Steel Headlight Housing And Bezel* Crystal Clear...29-160600313- SKU:
- 29-160600313
- Truck Class:
- Heavy Duty
- Diameter Options:
- 7 Inch
- Material Options:
- Stainless Steel
- Shape Options:
- Round
- Make:
- GMC
- Make:
- Peterbilt
- Make:
- Freightliner
- Make:
- Mack
- Make:
- Kenworth
- Make:
- International
- Make:
- Sterling
- Product Type:
- Lighting
$315.99Qty in Cart: 0Price:$315.99Subtotal: -
Intake Pre-Filter For LAF3551 Air Filter
FREEDOM AIR FILTERS
$76.99Intake 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
$76.99Qty in Cart: 0Price:$76.99Subtotal: -
Drag Link 32 Inch C To C Replaces 1415516000 For Freightliner
AFTERMARKET
$349.9932 Inch C To C Drag Link Replaces 1415516000, 14-15516-000, 1417299000, 14-17299-000Engineered for long-lasting performance, this 32-inch drag link replaces Freightliner OEM #1415516000 with precise...03-05090031- SKU:
- 03-05090031
- Material Options:
- Steel
- Truck Class:
- Heavy Duty
- Length Options:
- 32 Inch
- Make:
- Freightliner
- Product Type:
- Frame & Chassis
$349.99Qty in Cart: 0Price:$349.99Subtotal: -
Minimizer Black Poly Tool Box W/ Single Latch Lock, 2 Side Straps- 20 X 19 X 36 Inch
MINIMIZER
$543.9920 X 19 X 36 Inch Black Poly Tool Box With Single Latch Lock & 2 Side Straps By MinimizerProtect valuable tools and improve truck storage with the Minimizer Black Poly Toolbox. Built from...09-020100031- SKU:
- 09-020100031
- Height Options:
- 19 Inch
- Truck Class:
- Universal
- Length Options:
- 20 Inch
- Width Options:
- 36 Inch
- Location:
- Made In USA
- Color:
- Black
- Material Options:
- Plastic/Poly
- Make:
- Universal Items
- Product Type:
- Toolboxes
$543.99Qty in Cart: 0Price:$543.99Subtotal: -
1.25 Inch Wheel Bearing Cone 15123, 031-029-02
AUTOMANN USA
$6.25Replacement Wheel Bearing Cone* High Quality Wheel Bearing Cone* Dimensions: - 1.25 Inch I.D. - 0.715 Inch Bearing Width* Sold Individually* Warranty On Wheel Bearing Cones Against Defects In...09-20200147- SKU:
- 09-20200147
- Truck Class:
- Heavy Duty
- Product Type:
- Wheels
- Diameter Options:
- 1 1/4 Inch
- Shape Options:
- Round
- Make:
- Universal Items
$6.25Qty in Cart: 0Price:$6.25Subtotal: -
Driveshaft Assembly Replaces 4L3Z4R602PA, 5L3Z4R602P, 5L3Z4R602PA For Ford F150
DAYTON / DORMAN
$855.99Driveshaft Assembly Fits Ford F150 2004-2006* High Quality Driveshaft Assembly* Made Of Steel* Driveshaft Length (In): 86.125 In* Driveshaft Wall Thickness (In): 0.083 In* Grade Type: Standard*...05-052100031- SKU:
- 05-052100031
- Truck Class:
- Heavy Duty
- Make:
- Ford
- Product Type:
- Frame & Chassis
- Material Options:
- Steel
- Location:
- Made In USA
$855.99Qty in Cart: 0Price:$855.99Subtotal: -
20 Inch Chrome Standard Rolled End Bumper, 10 Gauge W/ Center Tow Hole For Peterbilt 357, 378 & 379 SFA
VALLEY CHROME PLATING
$1,128.99Valley Chrome Standard Rolled End Bumper W/ Center Tow Hole Fits Peterbilt 357, 378 & 379 SFAThis replacement bumper, made from sturdy 10-gauge chrome-plated steel, is designed to last. It has handy...HC001031- SKU:
- HC001031
- Make:
- Peterbilt
- Height Options:
- 20 Inch
- Light Options:
- Without Lights
- Truck Class:
- Heavy Duty
- Style Options:
- Standard Rolled End
- Material Options:
- Steel
- Finish Options:
- Chrome-Plated
- Type Options:
- Standard Mount
- Size Options:
- 10 Gauge
- Product Type:
- Bumpers
$1,128.99Qty in Cart: 0Price:$1,128.99Subtotal: -
Dual Function Guide 682-C Headlight Turn Signal Light - Amber LED/Clear Lens
UNITED PACIFIC
$16.925 LED Dual Function Guide 682-C Headlight Turn Signal LightUpgrade your truck's lighting with this dual function headlight turn signal assembly designed for 682-C series bezels. The unit features...09-160103102- SKU:
- 09-160103102
- Style Options:
- LED
- Color:
- Amber
- Product Type:
- Lighting
- Make:
- Universal Items
$16.92Qty in Cart: 0Price:$16.92Subtotal: -
FREE SHIPPING OVER $249
BESTfit 12V A/C Evaporator Thermistor W/ 2 Pin Connector For Sprinter Van, Mack & Volvo Replaces 85115771
BESTFIT TRUCK PARTS
$14.9912V A/C Evaporator Thermistor W/ 2 Pin Connector By BESTfit Replaces 85115771 Fits Sprinter Van, Mack & VolvoMaintain accurate temperature control in your truck's HVAC system with the BESTfit 12V A/C...29-07000031- SKU:
- 29-07000031
- Product Type:
- Engine Parts
- Make:
- Other - Pickup Truck
- Make:
- Mack
- Make:
- Volvo
$14.99Qty in Cart: 0Price:$14.99Subtotal: -
20 Inch Stainless Steel Standard Rolled End Bumper W/ Tow Hole For Peterbilt 357, 378 & 379 SFA
VALLEY CHROME PLATING
$1,221.99Valley Chrome 20 Inch To 16 Inch Rolled End Bumper W/ Tow Hook Holes Fits Peterbilt 378 & 379Are you looking to customize your truck with a big shiny bumper? 4 State Trucks offers this quality 20...HC001031S- SKU:
- HC001031S
- Height Options:
- 20 Inch
- Truck Class:
- Heavy Duty
- Light Options:
- Without Lights
- Style Options:
- Standard Rolled End
- Make:
- Peterbilt
- Material Options:
- Stainless Steel
- Type Options:
- Standard Mount
- Product Type:
- Bumpers
$1,221.99Qty in Cart: 0Price:$1,221.99Subtotal: