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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
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
Haul of Fame: Equipment Express's "Doc Holliday” A 2007 Peterbilt Legacy 379 Built to Legend(Post)Why "Doc Holliday" Earns a Spot in the Haul of Fame Every now and then, a truck rolls through that stops you dead in your tracks. "Doc Holliday," the custom 2007 Peterbilt Legacy 379 built by Equipmen
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RigMaster Air Filter Cartridge C 1140 For Air For Engines
RIGMASTER
$36.72Air For Engines Filter Cartridge - 00-C1140The Air Filter Cartridge C 1140 efficiently filters out harmful particles including dust, pollen, sand, soot, or even water droplets from the intake air...00C1140- SKU:
- 00C1140
- Material Options:
- Fiberglass
- Truck Class:
- Heavy Duty
- Product Type:
- Engine Parts
- Make:
- Universal Items
- Ready To Ship:
- Yes
$36.72Qty in Cart: 0Price:$36.72Subtotal: -
5 OD X 114 Inch Chrome Miter Top Stack by Lincoln Chrome
LINCOLN CHROME
$641.995 Inch OD X 114 Inch Chrome Miter Cut Exhaust Stack* High Quality Miter Exhaust Stack* Chrome Plated Steel * 5 OD X 114 Inch* Sold Individually * Warranty On Miter Exhaust Stack Against Defects In...09-0850114013- SKU:
- 09-0850114013
- Diameter Options:
- 5 Inch
- Truck Class:
- Universal
- Length Options:
- 114 Inch
- Style Options:
- Flat
- Material Options:
- Steel
- Make:
- Universal Items
- Finish Options:
- Chrome-Plated
- Location:
- Made In USA
- Product Type:
- Exhaust
$641.99Qty in Cart: 0Price:$641.99Subtotal: -
7 ID X 114 Inch Chrome West Coast Turn Out Exhaust Stack
LINCOLN CHROME
$992.99Lincoln Ohrome 114 Inch Tall West Coast Stack W/ 7 Inch ID* High Quality Stack* Chrome Plated* 7 Id X 114 * West Coast Turn Out * Sold Individually* Warranty On Stack Against Defects In Workmanship &...09-0870114183- SKU:
- 09-0870114183
- Truck Class:
- Universal
- Diameter Options:
- 7 Inch
- Length Options:
- 114 Inch
- Style Options:
- West Coast Turn
- Material Options:
- Steel
- Make:
- Universal Items
- Finish Options:
- Chrome-Plated
- Location:
- Made In USA
- Product Type:
- Exhaust
$992.99Qty in Cart: 0Price:$992.99Subtotal: -
8 X 114 Inch Stainless Steel 30 Degree West Coast Turn Top Exhaust Stack
AMERICAN EAGLE EXHAUST
$1,142.998 X 114 Inch 30 Degree West Coast Turn Top Exhaust Stack* High Quality Exhaust Stack* Stainless Steel* 8 X 114 Inch* 30-Degree* West Coast Turn Style* Sold Individually* Warranty On Stacks Against...09-088011408S- SKU:
- 09-088011408S
- Style Options:
- West Coast Turn
- Diameter Options:
- 8 Inch
- Truck Class:
- Universal
- Length Options:
- 114 Inch
- Material Options:
- Stainless Steel
- Make:
- Universal Items
- Product Type:
- Exhaust
- Ready To Ship:
- Yes
$1,142.99Qty in Cart: 0Price:$1,142.99Subtotal: -
7 ID X 114 Inch Chrome West Coast Turn Exhaust Top Stack by BESTfit
BESTFIT TRUCK PARTS
$868.99BESTfit 7 ID X 114 Inch West Coast Turn Exhaust Top Stack* High Quality Exhaust Stack * Chrome- Plated Steel* West Coast Turn Style* Flared End* Dimensions: - 114 Inch Height - 7 Inch ID* Sold...09-087011418- SKU:
- 09-087011418
- Truck Class:
- Heavy Duty
- Material Options:
- Steel
- Finish Options:
- Chrome-Plated
- Diameter Options:
- 7 Inch
- Product Type:
- Exhaust
- Make:
- Universal Items
- Height Options:
- 114 Inch
- Style Options:
- West Coast Turn
$868.99Qty in Cart: 0Price:$868.99Subtotal: -
8 X 114 Inch Stainless Steel Miter Cut Turn Exhaust Stack
AFTERMARKET
$1,142.99SS Miter Cut Top Stack* High Quality Stack* Stainless Steel* 8 X 114 Inch * Miter Cut Style* Sold Individually* Warranty On Stacks Against Defects In Workmanship & Material From Date Of Purchase***...09-088011401S- SKU:
- 09-088011401S
- Style Options:
- Miter Cut
- Diameter Options:
- 8 Inch
- Truck Class:
- Universal
- Length Options:
- 114 Inch
- Material Options:
- Stainless Steel
- Make:
- Universal Items
- Product Type:
- Exhaust
- Ready To Ship:
- Yes
$1,142.99Qty in Cart: 0Price:$1,142.99Subtotal: -
20 Inch Chrome Mitered End Roadrunner Bumper W/ Step & Tow Holes For Kenworth W900B/L
VALLEY CHROME PLATING
$849.99Valley Chrome 20 Inch Mitered End Roadrunner Bumper W/ Step & Tow Holes Fits Kenworth W900B/LGive your Kenworth W900B or W900L a bold front-end upgrade with the Valley Chrome 20 Inch Mitered End...FE0210114- SKU:
- FE0210114
- Product Type:
- Bumpers
- Height Options:
- 20 Inch
$849.99Qty in Cart: 0Price:$849.99Subtotal: -
20 Inch Chrome Texas Miter End Bumper W/ Tow & 2 Watermelon Light Holes For Kenworth W900B/L
VALLEY CHROME PLATING
$902.99Valley Chrome 20 Inch Texas Miter End Bumper W/ Tow & Watermelon Light HolesUpgrade the front end of your Kenworth W900 with the 20 Inch Chrome Texas Miter End Bumper W/ Tow & 2 Watermelon Light...FE0010114B1W- SKU:
- FE0010114B1W
- Product Type:
- Bumpers
- Finish Options:
- Chrome-Plated
- Material Options:
- Steel
- Light Options:
- Without Lights
- Location:
- Made In USA
- Height Options:
- 20 Inch
- Style Options:
- Texas Mitered End
- Make:
- Kenworth
$902.99Qty in Cart: 0Price:$902.99Subtotal: -
20 Inch Stainless Steel Blind Mount 45 Degree Mitered End Roadrunner Bumper For Freightliner, Peterbilt & Western Star
VALLEY CHROME PLATING
$1,379.99Valley Chrome 20 Inch Blind Mount 45 Degree Mitered End Roadrunner BumperReinforce your truck's front end with the Valley Chrome 20 Inch Blind Mount 45 Degree Mitered End Roadrunner Bumper. Made from...GO0000114SUSX- SKU:
- GO0000114SUSX
- Height Options:
- 20 Inch
- Light Options:
- Without Lights
- Product Type:
- Bumpers
- Size Options:
- 11 Gauge
- Type Options:
- Blind Mount
- Location:
- Made In USA
- Style Options:
- Texas Mitered End
- Material Options:
- Stainless Steel
- Truck Class:
- Heavy Duty
- Make:
- Peterbilt
- Make:
- Western Star
- Make:
- Freightliner
$1,379.99Qty in Cart: 0Price:$1,379.99Subtotal: -
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Digital Air Filter Monitor Gauge - Red Display
TELTEK
$263.99Digital Air Filter Monitor GaugeIf you want to be notified when you need to change your air filter, 4 State Trucks has what you need with this high quality Teltek gauge. With a red digital display,...29-1502114RKW- SKU:
- 29-1502114RKW
- Color:
- Red
- Location:
- Made In USA
- Truck Class:
- Heavy Duty
- Style Options:
- Digital
- Make:
- GMC
- Make:
- Peterbilt
- Make:
- Freightliner
- Make:
- Mack
- Make:
- International
- Make:
- Volvo
- Make:
- Ford
- Make:
- Kenworth
- Make:
- Western Star
- Product Type:
- Interior
$263.99Qty in Cart: 0Price:$263.99Subtotal: -
20 Inch Chrome Roadrunner Mitered End Bumper, 10 Gauge W/ UST Mounting Plates For Kenworth W900B/W900L
VALLEY CHROME PLATING
$959.99Valley Chrome Roadrunner Mitered End Bumper W/ UST Mounting Plates Fits Kenworth W900B & W900L* High Quality Replacement Bumper* Made Of 10-Gauge (1/8 Inch Thick) Chrome-Plated Steel* Has Cutouts...FEXX1X114UST- SKU:
- FEXX1X114UST
- Make:
- Kenworth
- Truck Class:
- Heavy Duty
- Height Options:
- 20 Inch
- Light Options:
- Without Lights
- Style Options:
- Texas Mitered End Roadrunner
- Material Options:
- Steel
- Finish Options:
- Chrome-Plated
- Size Options:
- 10 Gauge
- Type Options:
- Blind Mount
- Product Type:
- Bumpers
$959.99Qty in Cart: 0Price:$959.99Subtotal: -
20 Inch Chrome Blind Mount Miter End Bumper W/ Tow Hole For Peterbilt 357 & 378 SFA, 379
VALLEY CHROME PLATING
$959.99Valley Chrome 20 Inch Blind Mount Miter End Bumper W/ Tow HoleOutfit your Peterbilt 379 with the 20 Inch Chrome Blind Mount Miter End Bumper W/ Tow Hole, a high-quality bumper that provides both...HCXX10114UST- SKU:
- HCXX10114UST
- Product Type:
- Bumpers
- Material Options:
- Steel
- Height Options:
- 20 Inch
- Location:
- Made In USA
- Type Options:
- Blind Mount
- Finish Options:
- Chrome-Plated
- Style Options:
- Standard Mitered End
- Make:
- Peterbilt
$959.99Qty in Cart: 0Price:$959.99Subtotal: -
Chrome Texas Bumper 20 Inch Bind Mount With Mitered Ends And Tow Holes For Peterbilt 365, 367, 388, 389, 567 & 589 SFA
VALLEY CHROME PLATING
$959.99Peterbilt Angled Boxed End Bumper By Valley Chrome* High Quality Bumper* Chrome-Plated Steel* 20 Inch Height* Mitered Ends* Tow Hole Cutouts Only* No Mounting Bolt Holes in Face.* Includes Blind...HVXX1X114UST- SKU:
- HVXX1X114UST
- Product Type:
- Bumpers
- Height Options:
- 20 Inch
- Finish Options:
- Chrome-Plated
- Truck Class:
- Heavy Duty
- Make:
- Peterbilt
- Material Options:
- Steel
$959.99Qty in Cart: 0Price:$959.99Subtotal: -
20 Inch Stainless Texas Bumper Blind Mount With Mitered Ends For Freightliner, Kenworth & Peterbilt
VALLEY CHROME PLATING
$1,379.9920 Inch Stainless Texas Bumper Blind Mount With Mitered Ends* High Quality Bumper* Stainless Steel* 20 Inch* Mitered Ends* Blind Mount * Includes UST Mounting Brackets* Sold Individually* Warranty On...GO0000114SUST- SKU:
- GO0000114SUST
- Height Options:
- 20 Inch
- Product Type:
- Bumpers
- Truck Class:
- Heavy Duty
- Make:
- Kenworth
- Make:
- Peterbilt
- Make:
- Freightliner
- Material Options:
- Stainless Steel
$1,379.99Qty in Cart: 0Price:$1,379.99Subtotal: -
Texas Mitered End Bumper, 10 Gauge W/ UST Mount Plates, 20 Inch Blind Mount Chrome For Freightliner, Kenworth & Peterbilt
VALLEY CHROME PLATING
$959.99Valley Chrome 45 Degree Mitered End Roadrunner Bumper Fits Peterbilt, Kenworth, FreightlinerCheck out the 20-inch Road Runner bumper with UST plates and mitered ends at a 45-degree angle at 4 State...GO0000114UST- SKU:
- GO0000114UST
- Height Options:
- 20 Inch
- Truck Class:
- Heavy Duty
- Style Options:
- Texas Mitered End Roadrunner
- Material Options:
- Steel
- Finish Options:
- Chrome-Plated
- Make:
- Freightliner
- Make:
- Peterbilt
- Make:
- Kenworth
- Type Options:
- Blind Mount
- Size Options:
- 10 Gauge
- Product Type:
- Bumpers
- Ready To Ship:
- Yes
$959.99Qty in Cart: 0Price:$959.99Subtotal: -
Road Runner Bumper W/ USX Blind Mount Plates, 20 Inch Chrome For Freightliner, Peterbilt & Western Star
VALLEY CHROME PLATING
$959.99Valley Chrome Roadrunner Angled End Bumper W/ USX Mounting Plates Fits Freightliner, Peterbilt And Western StarsThis Valley Chrome Replacement 20 Inch Bumper is made of Chrome Plated Steel. It has a...GO0000114USX- SKU:
- GO0000114USX
- Height Options:
- 20 Inch
- Truck Class:
- Heavy Duty
- Style Options:
- Texas Mitered End Roadrunner
- Material Options:
- Steel
- Finish Options:
- Chrome-Plated
- Make:
- Kenworth
- Make:
- Freightliner
- Make:
- Western Star
- Make:
- Peterbilt
- Type Options:
- Blind Mount
- Size Options:
- 10 Gauge
- Product Type:
- Bumpers
- Ready To Ship:
- Yes
$959.99Qty in Cart: 0Price:$959.99Subtotal: -
Chrome-Plated Steel Bumper Grille For Freightliner Coronado 1st Gen. Replaces A21-26677-000
AUTOMANN USA
$267.99Chrome Bumper Grille Fits Freightliner Coronado W/ Round Headlight BezelsBoost the appearance and dependability of your Freightliner Coronado 1st Gen with this premium Chrome-Plated Steel Bumper...03-011418- SKU:
- 03-011418
- Truck Class:
- Heavy Duty
- Make:
- Freightliner
- Product Type:
- Bumpers
- Material Options:
- Steel
- Finish Options:
- Chrome-Plated
$267.99Qty in Cart: 0Price:$267.99Subtotal: -
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: -
BESTfit Charge Air Cooler 28.25 X 25.55 X 2.21 Inch Replaces 204SX273, 3MD514M For Mack CL 1995-2007
BESTFIT TRUCK PARTS
$1,316.99Charge Air Cooler W/ 4 Inch Inlet & Outlet By BESTfit Replaces 204SX273, 3MD514MKeep your Mack CL running at safe temperatures with this high-quality BESTfit Tube and Fin Charge Air Cooler...11-070114- SKU:
- 11-070114
- Truck Class:
- Heavy Duty
- Make:
- Mack
- Product Type:
- Engine Parts
$1,316.99Qty in Cart: 0Price:$1,316.99Subtotal: -
BESTfit Front Engine Cover For Cummins N-14 Models For Cummins N14 Series Engine
BESTFIT TRUCK PARTS
$522.99BESTfit N-14 Cummins Front Engine Cover For Tilt Engine ApplicationThis high quality front engine cover that fits Cummins N-14 models has the accessory drive bushing installed and for a tilt engine...29-073411458- SKU:
- 29-073411458
- Truck Class:
- Heavy Duty
- Material Options:
- Aluminum
- Product Type:
- Engine Parts
- Make:
- International
- Make:
- Kenworth
- Make:
- Freightliner
- Make:
- Western Star
- Make:
- Volvo
- Style Options:
- Cummins
$522.99Qty in Cart: 0Price:$522.99Subtotal: