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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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BESTfit 5 Inch Aluminized Multi-Bend Turbo Pipe Replaces 04-17094-020 For Freightliner FLD
BESTFIT TRUCK PARTS
$205.99BESTfit Multi-Bend 5 Inch Aluminized Turbo Pipe Without Pyrometer Fitting Fits Freightliner FLD* High Quality Turbo Exhaust Pipe* (2) 90 Degree Bends* Without Pyrometer Fitting* Made of Aluminized...03-08140200- SKU:
- 03-08140200
- Diameter Options:
- 5 Inch
- Truck Class:
- Heavy Duty
- Style Options:
- Flanged
- Material Options:
- Aluminized Steel
- Make:
- Freightliner
- Product Type:
- Exhaust
$205.99Qty in Cart: 0Price:$205.99Subtotal: -
3 Layer Replacement Air Filter Wrap For 29-071300018 High Performance Air Filter
FLEET FILTERS
$195.993 Layer Replacement Air Filter Wrap For High Performance Air Filter* High Quality Replacement Air Filter Wrap* For 29-071300018* 3 Layer Design* Does Not Come Pre-Oiled* Oil Is Required Before...29-071300020- SKU:
- 29-071300020
- Truck Class:
- Heavy Duty
- Make:
- Volvo
- Product Type:
- Engine Parts
$195.99Qty in Cart: 0Price:$195.99Subtotal: -
On SaleLimited Quantity Available
High Flow Performance Air Filter With Washable Element Media For Peterbilt - Pair
FLEET FILTERS
Now: $325.13Was: $839.99High Performance Air Filter Media Fits Peterbilt - PairYou never need to waste money on paper filters again! 4 State Trucks proudly offers Fleet Air Filters, the only lifetime, washable, high flow,...29-090500020- SKU:
- 29-090500020
- Truck Class:
- Heavy Duty
- Make:
- Peterbilt
- Product Type:
- Exterior
Now: $325.13Was: $839.99Qty in Cart: 0Price:Now: $325.13Was: $839.99Subtotal: -
Steel 36 Gallon Bulkhead Hydraulic Reservoir W/ 10 Micron Filter - Powder Coated Black
BUYERS PRODUCTS
$1,825.9936 Gallon Hydraulic Reservoir With 10 Micron FilterThis durable 36-gallon Bulkhead Hydraulic Reservoir is built from 12-gauge steel with a rust-resistant black powder-coated finish. It features a...09-02500020- SKU:
- 09-02500020
- Color:
- Black
- Truck Class:
- Universal
- Height Options:
- 26 Inch
- Width Options:
- 42 Inch
- Material Options:
- Steel
- Make:
- Universal Items
- Product Type:
- Cargo Control
- Length Options:
- 8 1/2 Inch
- Capacity:
- 36 Gallons
- Finish Options:
- Black Powder Coat
- Type Options:
- Side Mount
- Size Options:
- 12 Gauge
$1,825.99Qty in Cart: 0Price:$1,825.99Subtotal: -
Stainless Steel Diesel Particulate Filter Replaces 23537225, A6804908692 For Detroit Diesel S60 Engine
GLOBAL EMISSIONS
$2,619.99Stainless Steel Diesel Particulate Filter Fits Detroit Diesel S60 Engine* High Quality Diesel Particulate Filter* Made Of Stainless Steel * OEM Quality Clamps And Gaskets Included* Sold Individually...29-080600020- SKU:
- 29-080600020
- Truck Class:
- Heavy Duty
- Style Options:
- Detroit
- Material Options:
- Stainless Steel
- Make:
- Universal Items
- Product Type:
- Exhaust
$2,619.99Qty in Cart: 0Price:$2,619.99Subtotal: -
Surface Mount Amber Strobe Light W/ 36 Flashing Patterns
TRUX ACCESSORIES
$67.99Amber Strobe Light W/ 36 Flashing PatternsThis class one directional amber strobe light features 36 selectable flash patterns with the ability to recall the last pattern. It has a synchronization and...09-160900204- SKU:
- 09-160900204
- Color:
- Amber
- Truck Class:
- Universal
- Make:
- Universal Items
- Material Options:
- Plastic/Poly
- Product Type:
- Lighting
$67.99Qty in Cart: 0Price:$67.99Subtotal: -
Slim Surface Mount Amber Strobe Light W/ 36 Flashing Patterns
TRUX ACCESSORIES
$67.99Amber Strobe Light W/ 36 Flashing PatternsLooking for a strobe light with a slim design? This class one directional amber slim strobe light features 36 selectable flash patterns with the ability to...09-160900203- SKU:
- 09-160900203
- Color:
- Amber
- Truck Class:
- Universal
- Make:
- Universal Items
- Shape Options:
- Oval
- Material Options:
- Plastic/Poly
- Product Type:
- Lighting
$67.99Qty in Cart: 0Price:$67.99Subtotal: -
VC Stainless Steel A/C Cover W/ Filter Door For Peterbilt 330, 357, 378, 375, 377 & 379
VALLEY CHROME PLATING
$168.99Stainless Steel A/C Cover W/ Filter Door By Valley Chrome Fits Peterbilt 330, 357, 378, 375, 377 & 379Restore your truck's appearance and protect vital A/C components with the VC Stainless Steel A/C...01-15020002- SKU:
- 01-15020002
- Material Options:
- Stainless Steel
- Product Type:
- Interior
- Location:
- Made In USA
- Make:
- Peterbilt
$168.99Qty in Cart: 0Price:$168.99Subtotal: -
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Oil Filter Wrench For 3-1/2 Inch To 3-7/8 Inch Oil Filters
AFTERMARKET
$12.47Oil Filter WrenchEasily remove 3-1/2 inch to 3-7/8 inch spin on type of oil filters with this wrench. It is sold individually.* High Quality Wrench * For Oil Filter* 3-1/2 Inch to 3-7/8 Inch (89mm to...09-21000204- SKU:
- 09-21000204
- Truck Class:
- Universal
- Make:
- Universal Items
- Product Type:
- Tools
$12.47Qty in Cart: 0Price:$12.47Subtotal: -
Filter Door Panel Cover For Peterbilt 375, 377, 378 & 379
GRAND GENERAL
$13.33Peterbilt Filter Door Panel CoverEnhance the interior detail of your Peterbilt 375, 377, 378, or 379 with this high-quality filter door panel cover designed for Peterbilt 370 Series 1995 & later...01-15020306- SKU:
- 01-15020306
- Material Options:
- Stainless Steel
- Product Type:
- Interior
- Height Options:
- 4 1/2 Inch
- Width Options:
- 6 Inch
- Make:
- Peterbilt
$13.33Qty in Cart: 0Price:$13.33Subtotal: -
Stainless Steel DPF Cover For International LT 2018-Current
ROADWORKS
$478.99International LT Diesel Particulate Filter Cover By RoadWorks* High Quality DPF Cover* Made Of 430 Grade Stainless Steel * Cover Only* Does Not Include Step Or Brackets* Sold Individually* Warranty...07-050200002- SKU:
- 07-050200002
- Location:
- Made In USA
- Truck Class:
- Heavy Duty
- Material Options:
- Stainless Steel
- Make:
- International
- Product Type:
- Fuel Tanks
$478.99Qty in Cart: 0Price:$478.99Subtotal: -
Aluminum HEXTHREAD ® Filter Cartridge Assembly Compatible With XTRACTOR ® XTR-7174 For Steer Axle
THE HUB CORPORATION
$41.99HEXTHREAD Filter Cartridge For Steer Axle ApplicationThe HEXTHREAD Filter Cartridge is a high-quality replacement filtration component designed specifically for steer axle hub caps equipped with the...09-20200618- SKU:
- 09-20200618
- Product Type:
- Wheels
- Make:
- Universal Items
$41.99Qty in Cart: 0Price:$41.99Subtotal: -
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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: -
Smooth Aluminum Underbody Tool Box W/ Dual Barn Doors- 72 X 36 X 36 Inch
ICONIC
$2,014.9972 X 36 X 36 Inch Smooth Aluminum Underbody Tool Box W/ Dual Barn DoorsTake your truck organization to the next level with this oversized 72-inch underbody tool box crafted from smooth marine-grade...09-020100850- SKU:
- 09-020100850
- Finish Options:
- Smooth
- Height Options:
- 36 Inch
- Product Type:
- Toolboxes
- Width Options:
- 36 Inch
- Length Options:
- 72 Inch
- Material Options:
- Aluminum
- Make:
- Universal Items
$2,014.99Qty in Cart: 0Price:$2,014.99Subtotal: -
2 Leaf Parabolic Steer Spring 4 Inch Wide Replaces 1664618C91 & EE16002002 For International
AFTERMARKET
$543.992 Leaf Spring For Steer Fits International 2500, 2600, 8100, 8200, 8300, 9100, 9200, 9400, 9900Provide your International truck with enhanced handling and ride quality using this high-performance 2...07-0591020- SKU:
- 07-0591020
- Length Options:
- 29 Inch
- Truck Class:
- Heavy Duty
- Width Options:
- 4 Inch
- Make:
- International
- Product Type:
- Frame & Chassis
$543.99Qty in Cart: 0Price:$543.99Subtotal: -
Bright Diamond Plate Aluminum Single Door Dog Box W/ Open Rungs- 36 X 36 Inch
AFTERMARKET
$1,010.9936 X 36 Inch Bright Diamond Plate Aluminum Single Door Dog Box W/ Open RungsKeep your dogs comfortable and secure with the Bright Diamond Plate Aluminum Single Door Dog Box featuring open rungs for...09-020100181- SKU:
- 09-020100181
- Truck Class:
- Universal
- Length Options:
- 63 Inch
- Material Options:
- Aluminum
- Make:
- Universal Items
- Finish Options:
- Diamond Plate
- Product Type:
- Toolboxes
$1,010.99Qty in Cart: 0Price:$1,010.99Subtotal: -
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BESTfit Coolant Flex Hose Heavy Duty Silicone 2.5 ID X 36 Inch
BESTFIT TRUCK PARTS
$452.99BESTfit 2.50 ID X 36 Inch Heavy Duty Silicone Coolant Flex Hose* High Quality Silicone Coolant Hose* 2.50 Inch Inside Diameter - 64MM* 2.92 Inch Outside Diameter - 74MM* 36 Inches Length* 6 Inch Bend...09-0702045- SKU:
- 09-0702045
- Truck Class:
- Heavy Duty
- Make:
- Universal Items
- Product Type:
- Engine Parts
- Ready To Ship:
- Yes
$452.99Qty in Cart: 0Price:$452.99Subtotal: -
Minimizer 36 Inch Granite Chest Tool Box
MINIMIZER
$485.99Medium Weather Resistant Chest Tool BoxCheck out the Minimizer 36 Inch Granite Chest Tool Box, perfect for organizing and protecting your tools on the road. It's made from tough polyethylene, so it...09-02010021- SKU:
- 09-02010021
- Truck Class:
- Heavy Duty
- Material Options:
- Plastic/Poly
- Make:
- Universal Items
$485.99Qty in Cart: 0Price:$485.99Subtotal: -
Minimizer 36 Inch Yellow Chest Tool Box
MINIMIZER
$485.99Medium Weather Resistant Chest Tool BoxNeed a reliable place for your tools? Check out the Minimizer 36 Inch Yellow Chest Tool Box. It's sturdy, durable, and keeps your gear organized and easy to...09-02010024- SKU:
- 09-02010024
- Material Options:
- Plastic/Poly
- Truck Class:
- Heavy Duty
- Make:
- Universal Items
$485.99Qty in Cart: 0Price:$485.99Subtotal: -
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: