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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
Top 10 Semi Truck Winter Accessories for Heavy-Duty Drivers(Post)Winter truck driving can be downright trecherous to haul payloads in, especially when you don't have the right winter-ready trucker gear to get you through difficult drives in below-freezing temperatu
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
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
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
Adapt to the Diesel Fuel Crisis Using These 10 Truck Mods(Post)Small aftermarket semi truck accessories and performance upgrades save more money over time than their upfront price suggests. Here are 10 aftermarket truck upgrades to create cost-per-mile savings. T
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
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
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 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
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
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
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
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HVAC Control Panel - Replaces A22 - 73492 - 003, A22 - 73492 - 007 For Western Star 5700XEl 2018+
OPP - ORIGINAL PARTS PROGRAM
$1,088.99HVAC Control Panel For Newer Western Star 5700XE* High Quality HVAC Control Panel * For Cab* Fits Western Star 5700XE* Direct OE Replacement Part* Sold Individually* Warranty On HVAC Control Panel...14-1503007OE- SKU:
- 14-1503007OE
- Truck Class:
- Heavy Duty
- Make:
- Western Star
- OEM:
- OEM
- Product Type:
- Interior
$1,088.99Qty in Cart: 0Price:$1,088.99Subtotal: -
Stainless Steel Diesel Particulate Filter Replaces 2604430C91 For International W/ MaxxForce 9 Engine
GLOBAL EMISSIONS
$2,004.99Stainless Steel Diesel Particulate Filter Fits International W/ MaxxForce 9 Engine - Replaces 2604430C91* High Quality Diesel Particulate Filter* Made Of 430 Stainless Steel* OEM Quality Clamps And...07-080600007- SKU:
- 07-080600007
- Truck Class:
- Heavy Duty
- Material Options:
- Stainless Steel
- Make:
- International
- Product Type:
- Exhaust
$2,004.99Qty in Cart: 0Price:$2,004.99Subtotal: -
3 Layer Replacement Air Filter Wrap For 29-090500004 High Performance Air Filter
FLEET FILTERS
$383.993 Layer Replacement Air Filter Wrap For High Performance Air Filter* High Quality Replacement Air Filter Wrap* For 29-090500005* 3 Layer Design* Does Not Come Pre-Oiled* Oil Is Required Before...29-090500007- SKU:
- 29-090500007
- Truck Class:
- Heavy Duty
- Make:
- Mack
- Make:
- Kenworth
- Make:
- Freightliner
- Make:
- Peterbilt
- Make:
- GMC
- Product Type:
- Exterior
$383.99Qty in Cart: 0Price:$383.99Subtotal: -
High Flow Performance Air Filter With Washable Element Media For Freightliner, International & Peterbilt
FLEET FILTERS
$444.99High Performance Air Filter Media, Replaces FA3516You never need to waste money on paper filters again! 4 State Trucks proudly offers Fleet Air Filters, the only lifetime, washable, high flow, air...29-071300007- SKU:
- 29-071300007
- Truck Class:
- Heavy Duty
- Make:
- Peterbilt
- Product Type:
- Engine Parts
$444.99Qty in Cart: 0Price:$444.99Subtotal: -
FREE SHIPPING OVER $249
HVAC Pre-Filter For Kenworth & Peterbilt
FREEDOM AIR FILTERS
$42.05Air Intake HVAC Fits Kenworth T680/T880 And Peterbilt 567/579* High Quality Polyester Mesh Pre-Filter* Mounting Clips Included - Grilles Not Included* Installs Under Hood On Passenger Side Beneath...29-1503007- SKU:
- 29-1503007
- Truck Class:
- Heavy Duty
- Color:
- Black
- Material Options:
- Plastic/Poly
- Make:
- Kenworth
- Make:
- Peterbilt
- Product Type:
- Interior
- Ready To Ship:
- Yes
$42.05Qty in Cart: 0Price:$42.05Subtotal: -
FREE SHIPPING OVER $249
TPHD 1 Inch Oil Filler Cap W/ T Handle
TPHD
$11.12Oil Filler Cap By TPHD* High Quality Oil Filler Cap* 1 Inch* Sold Individually* Warranty On Oil Filler Cap Against Defects In Workmanship & Material From Date Of Purchase*** High Quality Aftermarket...09-072007- SKU:
- 09-072007
- Truck Class:
- Universal
- Make:
- Universal Items
- Product Type:
- Engine Parts
- Ready To Ship:
- Yes
$11.12Qty in Cart: 0Price:$11.12Subtotal: -
10 Micron Fuel Water Separator Filter
OPP - ORIGINAL PARTS PROGRAM
$42.04Donaldson 10 Micron Fuel Water Separator FilterRemove contaminates and water from your fuel system with this Donaldson fuel filter and water separator cartridge. It separates water in the fuel system...DNP550849- SKU:
- DNP550849
- Truck Class:
- Heavy Duty
- Make:
- Universal Items
- Product Type:
- Engine Parts
- Ready To Ship:
- Yes
$42.04Qty in Cart: 0Price:$42.04Subtotal: -
BESTfit Diesel Particulate Filter Gasket For Caterpillar Replaces E300121, GA006, KPI50094G
BESTFIT TRUCK PARTS
$11.99Diesel Particulate Filter Gasket By BESTfit Replaces E300121, GA006, KPI50094G Fits CaterpillarEnsure a reliable seal and optimal emissions performance with the BESTfit Caterpillar DPF Gasket, a...29-08090074- SKU:
- 29-08090074
- Style Options:
- Caterpillar
- Product Type:
- Exhaust
- Make:
- Universal Items
$11.99Qty in Cart: 0Price:$11.99Subtotal: -
BESTfit Diesel Particulate Filter For Caterpillar Engine Replaces 20R8031, 3583668, D2011SA
BESTFIT TRUCK PARTS
$6,141.99Diesel Particulate Filter By BESTfit Replaces 20R8031, 3583668, D2011SA Fits Caterpillar EngineEnsure optimal emissions performance with the BESTfit Caterpillar DPF for heavy-duty engines. Replacing...29-08090073- SKU:
- 29-08090073
- Style Options:
- Caterpillar
- Product Type:
- Exhaust
- Make:
- Universal Items
$6,141.99Qty in Cart: 0Price:$6,141.99Subtotal: -
BESTfit Diesel Particulate Filter For Cummins ISX Engine Replaces 2871838, 5289769, C0F5SA
BESTFIT TRUCK PARTS
$2,621.99Diesel Particulate Filter By BESTfit Replaces 2871838, 5289769, C0F5SA Fits Cummins ISX EngineMaintain clean emissions and reliable performance with the BESTfit Cummins Diesel Particulate Filter...29-08090077- SKU:
- 29-08090077
- Product Type:
- Exhaust
- Style Options:
- Cummins
- Make:
- Universal Items
$2,621.99Qty in Cart: 0Price:$2,621.99Subtotal: -
Engine Full Filter Cap Replaces A4710920108, A4720920308 For Detroit Diesel
AFTERMARKET
$104.99Engine Fuel Filter Cap Detroit DD15* High Quality Filter Cap * Sold Individually* Warranty On Filter Caps Against Defects In Workmanship & Material From Date Of Purchase*** High Quality Aftermarket...29-07120007- SKU:
- 29-07120007
- Product Type:
- Engine Parts
- Make:
- Universal Items
$104.99Qty in Cart: 0Price:$104.99Subtotal: -
Cabin Air Filter Replaces VCCT1000906J For Freightliner Cascadia 113/125
AUTOMANN USA
$9.24Freightliner Cabin Air FilterExperience clean and fresh air in your cab or sleeper with this cabin air filter for Freightliner Cascadia and Cascadia Evolution. This high-quality filter traps over 98%...03-0713007- SKU:
- 03-0713007
- Length Options:
- 9 1/4 Inch
- Truck Class:
- Heavy Duty
- Make:
- Freightliner
- Product Type:
- Engine Parts
$9.24Qty in Cart: 0Price:$9.24Subtotal: -
3 Inch SS Cab Panels W/ 10 - 3/4 Inch Amber/Amber LEDs, Block Heater Plug Hole For Freightliner Cascadia 116/126 Daycab
PANELITE
$624.99Stainless Steel Cab Panels W/ Block Heater Plug Fits Freightliner Cascadia 116/126 Day Cab* High Quality Cab Panels* Made Of 304 Stainless Steel* Amber/Amber Lights* Hole For Block Heater Plug*...03-091200007- SKU:
- 03-091200007
- Light Options:
- With Lights
- Location:
- Made In USA
- Truck Class:
- Heavy Duty
- Material Options:
- Stainless Steel
- Make:
- Freightliner
- Finish Options:
- Polished
- Length Options:
- 40 Inch
- Product Type:
- Exterior
$624.99Qty in Cart: 0Price:$624.99Subtotal: -
BESTfit Diesel Particulate Filter For Cummins ISM Engine Replaces 4352989, AMN1003, C0022SA
BESTFIT TRUCK PARTS
$1,797.99Diesel Particulate Filter By BESTfit Replaces 4352989, AMN1003, C0022SA Fits Cummins ISM EngineMaintain optimal emissions performance with the BESTfit Cummins DPF for ISM engines. Replacing OEM part...29-08090076- SKU:
- 29-08090076
- Style Options:
- Cummins
- Product Type:
- Exhaust
- Make:
- Universal Items
$1,797.99Qty in Cart: 0Price:$1,797.99Subtotal: -
12-10 AWG Heat Shrink Flag .250 Male Quick Connect
SPECTRO WIRE
$1.01Heat Shrink Male Spade Terminal* High Quality Heat Shrink* 12-10 AWG * .250 Male Spade* Sold Individually* Warranty On Heat Shrinks Against Defects In Workmanship & Material From Date Of Purchase***...09-161302007- SKU:
- 09-161302007
- Product Type:
- Air, Electrical, & Safety
- Truck Class:
- Heavy Duty
- Make:
- Universal Items
$1.01Qty in Cart: 0Price:$1.01Subtotal: -
BESTfit 8.375 X 8.625 X 1 Inch Paper Cabin Air Filter Replaces VCC36000006, N10G-36000006 For Freightliner
BESTFIT TRUCK PARTS
$14.57BESTfit Interior Cabin Air Filter Fits Freightliner 108SD, 114SD, M2-106, M2-112 & M2 Business Class* High Quality Cabin Air Filter* Length: 7 7/8* Height: 8 7/8* Thickness: 1 3/16* Additional Notes:...03-150300007- SKU:
- 03-150300007
- Truck Class:
- Heavy Duty
- Height Options:
- 8 Inch
- Length Options:
- 7 Inch
- Make:
- Freightliner
- Product Type:
- Interior
$14.57Qty in Cart: 0Price:$14.57Subtotal: -
Camshaft 1.50 Inch-10 Passenger Side E2794, R607031, 17-568, M16Wk10310
AFTERMARKET
$77.99Brake Camshaft* High Quality Camshaft* Length L- 17.375 Inch* Length A- 2.219 Inch* Splines- 1.50 Inch-10* Journal Diameter- 1.50 Inch* Passenger Side* Sold Individually* Warranty On Camshafts...09-05170007- SKU:
- 09-05170007
- Product Type:
- Frame & Chassis
- Position:
- Passenger Side
- Make:
- Universal Items
$77.99Qty in Cart: 0Price:$77.99Subtotal: -
Chrome Front Axle Cover W/ Hubdometer For Pilot Wheel With 10 Holes
GRAND GENERAL
$40.843 Piece Chrome Front Axle Cover W/ Hubdometer For Pilot Wheel With 10 Holes* High Quality Front Axle Cover* Includes:* 3 7/8 Inch Height* (10) 32 Mm Diameter Holes* Pilot Wheel Type* Fits 20 Inch, 22...09-20050074- SKU:
- 09-20050074
- Finish Options:
- Chrome-Plated
- Truck Class:
- Heavy Duty
- Product Type:
- Wheels
- Make:
- Universal Items
$40.84Qty in Cart: 0Price:$40.84Subtotal: -
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: -
Merritt Dyna-Light Aluminum Cab Rack W/ Chain Hanger & Retainer 68 X 76 Inch
MERRITT
$4,495.99Aluminum Cab Rack W/ Roads & Curbside Chain Rack/Tray Combo, Center Enclosure W/ Shelf* High Quality Cab Rack* Aluminum* 68 Inch X 76 Inch* Center Enclosure W/ Shelf * Chain Hanger And Retainer* Road...318373M0007- SKU:
- 318373M0007
- Material Options:
- Aluminum
- Truck Class:
- Heavy Duty
- Product Type:
- Cargo Control
- Make:
- Universal Items
$4,495.99Qty in Cart: 0Price:$4,495.99Subtotal: