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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
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
How to Choose the Right W990 Drop Visor(Post)The best Kenworth W990 drop visor depends on your design preference, mounting configuration, and windshield type or cab style (curved or flat). Buying a Custom W990 Truck Visor Online? If you're brow
T880 Visor Ultimate Buyer's Guide(Post)There are countless Kenworth T880 visor options to choose from depending on the theme and style you’re going for. Here's a quick buyer's guide for Kenworth T880 aftermarket visors. Before you buy, con
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 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
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
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
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.
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
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
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
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
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
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
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
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
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
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FREE SHIPPING OVER $249
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: -
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: -
20 Inch Texas Stainless Steel Bumper, 11 Gauge W/ Tow Holes By BESTfit For Kenworth W900B & W900L
BESTFIT TRUCK PARTS
$827.99BESTfit Kenworth SS 20 Inch Boxed End Texas Bumper Mounting & Tow HolesThis BESTfit Texas Bumper is 20 inches from top to bottom and has boxed ends. It is made of 11 gauge number 8 finish, non...02-010020060- SKU:
- 02-010020060
- Make:
- Kenworth
- Height Options:
- 20 Inch
- Truck Class:
- Heavy Duty
- Style Options:
- Texas Boxed End
- Material Options:
- Stainless Steel
- Type Options:
- Standard Mount
- Size Options:
- 11 Gauge
- Finish Options:
- Polished
- Product Type:
- Bumpers
$827.99Qty in Cart: 0Price:$827.99Subtotal: -
FREE SHIPPING OVER $249
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: -
BESTfit Stainless Steel 20 Inch Texas Bumper, 11 Gauge W/ Mounting & Tow Holes For Kenworth W990
BESTFIT TRUCK PARTS
$830.99BESTfit Kenworth SS 20 Inch Boxed End Texas Bumper Mounting & Tow HolesThis BESTfit Texas Bumper is 20 inches from top to bottom and has Boxed ends. It is made of 11 gauge number 8 finish, non...02-010020062K- SKU:
- 02-010020062K
- Height Options:
- 20 Inch
- Make:
- Kenworth
- Light Options:
- Without Lights
- Truck Class:
- Heavy Duty
- Style Options:
- Texas Boxed End
- Type Options:
- Standard Mount
- Size Options:
- 11 Gauge
- Material Options:
- Stainless Steel
- Product Type:
- Bumpers
- Ready To Ship:
- Yes
$830.99Qty in Cart: 0Price:$830.99Subtotal: -
Power Steering Pump, 11 Tooth W/ Inlet At Top 0 Degree For Freightliner
AFTERMARKET
$458.993.7 GPM Power Steering Pump With Right Handed Rotation, Replaces 14-12528-000Ensure optimal steering performance with the Power Steering Pump for Freightliner, featuring 11 teeth, passenger side...03-07120020- SKU:
- 03-07120020
- Truck Class:
- Heavy Duty
- Make:
- Freightliner
- Product Type:
- Engine Parts
- Material Options:
- Cast Iron
$458.99Qty in Cart: 0Price:$458.99Subtotal: -
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: -
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BESTfit 3.75 Inch x 7 Ft Fuel Cotton Polyester Tank Strap Webbing For Peterbilt Replaces 11-02331-000-7
BESTFIT TRUCK PARTS
$50.993.75 Inch x 7 Ft Fuel Cotton Polyester Tank Strap Webbing by BESTfit Replaces 11-02331-000-7 Fits PeterbiltGet the perfect fit for your Peterbilt fuel tank with this strap liner. It's specifically...01-0601020- SKU:
- 01-0601020
- Product Type:
- Fuel Tanks
- Truck Class:
- Heavy Duty
- Make:
- Peterbilt
- Ready To Ship:
- Yes
- Length Options:
- 84 Inch
- Material Options:
- Cotton Polyester
- Width Options:
- 3 3/4 Inch
- Diameter Options:
- 26 Inch
$50.99Qty in Cart: 0Price:$50.99Subtotal: -
BESTfit 20 Inch SS Texas Hand Formed End Bumper 11 Gauge W/ Mounting & Tow Holes For Peterbilt 357/378 SFA & 379
BESTFIT TRUCK PARTS
$868.99BESTfit Peterbilt SS 20 Inch Hand Formed End Texas Bumper Mounting & Tow HolesThis BESTfit Texas bumper is 20 inches from top to bottom and has hand formed ends. Mounting and tow holes fit 1987 -...01-010020061- SKU:
- 01-010020061
- Light Options:
- Without Lights
- Material Options:
- Stainless Steel
- Style Options:
- Texas Hand Formed
- Truck Class:
- Heavy Duty
- Height Options:
- 20 Inch
- Size Options:
- 11 Gauge
- Product Type:
- Bumpers
- Type Options:
- Standard Mount
- Make:
- Peterbilt
- Ready To Ship:
- Yes
$868.99Qty in Cart: 0Price:$868.99Subtotal: -
BESTfit 20 Inch SS Texas Bumper, 11 Gauge W/ Hand Formed Ends, Mounting & Tow Holes For Kenworth W990
BESTFIT TRUCK PARTS
$790.99BESTfit Kenworth SS 20 Inch Hand Formed End Texas Bumper Mounting & Tow Holes* High Quality Bumper* Made Of 11 Gauge Number 8 Finish Stainless Steel* 20 Inches* Boxed Ends* Has Cutouts For: -...02-010020063K- SKU:
- 02-010020063K
- Truck Class:
- Heavy Duty
- Light Options:
- Without Lights
- Height Options:
- 20 Inch
- Make:
- Kenworth
- Style Options:
- Texas Hand Formed
- Type Options:
- Standard Mount
- Size Options:
- 11 Gauge
- Material Options:
- Stainless Steel
- Product Type:
- Bumpers
$790.99Qty in Cart: 0Price:$790.99Subtotal: -
BESTfit 20 Inch SS Texas Hand Formed End Bumper 11 Gauge W/ Mounting & Tow Holes For Kenworth W900B, W900L
BESTFIT TRUCK PARTS
$868.99BESTfit Kenworth SS 20 Inch Hand Formed End Texas Bumper Mounting & Tow Holes* High Quality Bumper* Made Of 11 Gauge Number 8 Finish Stainless Steel* 20 Inches* Hand Formed Ends* Has Cutouts For: -...02-010020061- SKU:
- 02-010020061
- Light Options:
- Without Lights
- Truck Class:
- Heavy Duty
- Make:
- Kenworth
- Height Options:
- 20 Inch
- Style Options:
- Texas Hand Formed
- Material Options:
- Stainless Steel
- Type Options:
- Standard Mount
- Size Options:
- 11 Gauge
- Product Type:
- Bumpers
$868.99Qty in Cart: 0Price:$868.99Subtotal: -
BESTfit Copper Brass Radiator W/ Frame 40.5 X 30.625 X 2.25 Inch For Kenworth W900
BESTFIT TRUCK PARTS
$2,871.99Radiator W/ 2.5 Inch Inlet & 2.5 Inch Outlet By BESTfit Replaces 1A0202650000* High Quality Radiator * Made Of Copper/Brass* With Frame* Core Size: - 40.500 Inch Height - 30.625 Inch Width - 2.25...02-070200020- SKU:
- 02-070200020
- Truck Class:
- Heavy Duty
- Material Options:
- Brass Copper
- Make:
- Kenworth
- Product Type:
- Engine Parts
$2,871.99Qty in Cart: 0Price:$2,871.99Subtotal: -
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: -
Stainless Steel A/C Cover With Filter Door For Peterbilt 1995-1999
VALLEY CHROME PLATING
$168.99A/C Cover With Filter Door* High Quality A/C Cover* A/C Replacement Cover For Peterbilt 370 Series 1995-1999* With Filter Door* Stainless Steel* Made In USA* Sold Individually* Warranty On A/C Covers...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: -
Spoke Wheel Clamp F Style - Replaces W-99, E5786 For 3/4 Inch Studs
AUTOMANN USA
$13.86Spoke Wheel Rim Clamp With 0.75 Inch Hole & 2.13 Inch Wedge Depth* High Quality Wheel Clamp* Dimensions: - 2.50 Inch Height - 2.88 Inch Width - 2.13 Inch Standout - 0.75 Inch Hole I.D.* F Style*...09-20200208- SKU:
- 09-20200208
- Truck Class:
- Heavy Duty
- Material Options:
- Steel
- Make:
- Universal Items
- Product Type:
- Wheels
$13.86Qty in Cart: 0Price:$13.86Subtotal: -
7 Inch White 11 Inch Red DOT-C2 Reflective Tape
UNITED PACIFIC
$107.99DOT-C2 Reflective Tape 7 Inch White 11 Inch RedEnhance road safety and boost visibility with this certified DOT-C2 conspicuity tape, featuring a 7 Inch white and 11 inch red alternating pattern. This...09-02020050- SKU:
- 09-02020050
- Color:
- Red/White
- Width Options:
- 2 Inch
- Product Type:
- Cargo Control
- Make:
- Universal Items
$107.99Qty in Cart: 0Price:$107.99Subtotal: