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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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Chrome Plastic AC Heater Cabin Filter Door For Peterbilt
GRAND GENERAL
$25.23Peterbilt Chrome Plastic Cabin Air Filter Door* High Quality AC/Heater Filter Door* Chrome-Plated Plastic* Made In USA* Sold Individually* Warranty On AC/Heater Filter Doors Against Defects In...01-15300013- SKU:
- 01-15300013
- Finish Options:
- Chrome-Plated
- Material Options:
- Plastic/Poly
- Truck Class:
- Heavy Duty
- Make:
- Peterbilt
- Product Type:
- Interior
- Ready To Ship:
- Yes
$25.23Qty in Cart: 0Price:$25.23Subtotal: -
FREE SHIPPING OVER $249
Chrome Air Filter Door Replaces S25-6015-281 For Peterbilt 386, 388 & 389/Glider
UNITED PACIFIC
$39.61Chrome Plastic Air Filter Door For Peterbilt2010-Newer* Made of High Quality Chrome Plastic* Replacement Door Passenger Lower Dash For Fresh Air Filter* Includes Mounting Clips* Measurements: - 10...01-1530064- SKU:
- 01-1530064
- Truck Class:
- Heavy Duty
- Material Options:
- Plastic/Poly
- Make:
- Peterbilt
- Finish Options:
- Chrome-Plated
- Product Type:
- Interior
- Ready To Ship:
- Yes
$39.61Qty in Cart: 0Price:$39.61Subtotal: -
FREE SHIPPING OVER $249
Mirror Frame With Heated Lower Mirror Replaces M015399 For Kenworth
UNITED PACIFIC
$62.99Mirror Cover With Lower Defrost For Kenworth* High Quality Replacement Mirror Frame* Frame Contains Lower Convex Mirror With Defrost Function* Upper Main Mirror Not Included With Frame* Frame Color...02-091532- SKU:
- 02-091532
- Truck Class:
- Heavy Duty
- Make:
- Kenworth
- Product Type:
- Exterior
- Ready To Ship:
- Yes
$62.99Qty in Cart: 0Price:$62.99Subtotal: -
Adjustable Strap Linkage Kit Replaces 12146, S2153, SRK503, 48100367
AUTOMANN USA
$16.17Universal Linkage Kit Adjustable StrapImprove the reliability of your truck's linkage system with the Adjustable Strap Linkage Kit, engineered for durability and precise operation. The adjustable...19-05180153- SKU:
- 19-05180153
- Material Options:
- Brass
- Truck Class:
- Heavy Duty
- Make:
- Trailer
- Product Type:
- Trailer
$16.17Qty in Cart: 0Price:$16.17Subtotal: -
BESTfit Caterpillar C15 Flywheel Housing 1694153, 2234739, 3044156 For Kenworth & Peterbilt, CAT C15 1999-2010
BESTFIT TRUCK PARTS
$1,279.99BESTfit Flywheel Housing Fits CAT C15This BESTfit aluminum Flywheel Housing fits trucks with a CAT C15 engine. It features a driver-side starter location at the 9 o'clock position and is compatible...29-071694153- SKU:
- 29-071694153
- Truck Class:
- Heavy Duty
- Material Options:
- Aluminum
- Make:
- Peterbilt
- Make:
- Kenworth
- Product Type:
- Engine Parts
- Diameter Options:
- 20 Inch
- Style Options:
- Angled
- Position:
- Driver Side
- Make:
- Universal Items
- Ready To Ship:
- Yes
$1,279.99Qty in Cart: 0Price:$1,279.99Subtotal: -
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 Black Square Shaft Window Crank Handle W/ 3.625 Inch C To C Handle For Kenworth t680, T880 W990
BESTFIT TRUCK PARTS
$40.57Square Black Window Crank Handle W/ Spring, Spring Cover & Mounting ScrewRestore your Kenworth cab windows with ease using the BESTfit Black Square Shaft Window Crank Handle. The kit includes the...02-1530077- SKU:
- 02-1530077
- Truck Class:
- Heavy Duty
- Product Type:
- Interior
- Make:
- Kenworth
- Ready To Ship:
- Yes
$40.57Qty in Cart: 0Price:$40.57Subtotal: -
Window Crank Screw
GRAND GENERAL
$5.64Kenworth And Peterbilt Window Crank Screw* High Quality Window Crank Screw* Chrome-Plated Steel * 7/16 Inch Stem* 0.9G Thread* Made In USA* Sold As Pair* Warranty On Window Crank Screws Against...29-15300002- SKU:
- 29-15300002
- Truck Class:
- Heavy Duty
- Finish Options:
- Chrome-Plated
- Material Options:
- Steel
- Make:
- Peterbilt
- Make:
- Kenworth
- Product Type:
- Interior
$5.64Qty in Cart: 0Price:$5.64Subtotal: -
FREE SHIPPING OVER $249
Chrome Window Crank Screw, 7/16 Inch Long For Peterbilt & Kenworth
UNITED PACIFIC
$3.36Window Crank Handle ScrewThis window crank screw matches great with a chrome window crank handle. It fits most trucks but may not fit those with a slot adapter. The threaded stem of this screw is...09-1530002- SKU:
- 09-1530002
- Truck Class:
- Universal
- Material Options:
- Steel
- Make:
- Universal Items
- Finish Options:
- Chrome-Plated
- Product Type:
- Interior
- Ready To Ship:
- Yes
$3.36Qty in Cart: 0Price:$3.36Subtotal: -
CSM Stainless Steel Battery/Toolbox Lid W/O & No Upper Step For Peterbilt 378, 379, 388 & 389/Glider
CHROME SHOP MAFIA
$429.99Replacement Bawer Style Battery/Toolbox Lid Stainless Steel W/ Square Corners By Chrome Shop Mafia Fits Peterbilt 378, 379 & 389Chrome Shop Mafia's aftermarket Stainless Steel Battery and Tool Box...01-05153003- SKU:
- 01-05153003
- Location:
- Made In USA
- Truck Class:
- Heavy Duty
- Product Type:
- Frame & Chassis
- Material Options:
- Stainless Steel
- Make:
- Peterbilt
$429.99Qty in Cart: 0Price:$429.99Subtotal: -
CSM SS Battery / Tool Box Replacement Lid W/ Radius Corners For Peterbilt 378, 379 & 389
CHROME SHOP MAFIA
$409.99Stainless Steel Battery Box & Tool Box Replacement Lid With No Upper Step By Chrome Shop MafiaChrome Shop Mafia's aftermarket Stainless Steel Battery and Tool Box Replacement Lid with No Upper Step...01-05153004- SKU:
- 01-05153004
- Location:
- Made In USA
- Truck Class:
- Heavy Duty
- Product Type:
- Frame & Chassis
- Material Options:
- Stainless Steel
- Make:
- Peterbilt
- Ready To Ship:
- Yes
$409.99Qty in Cart: 0Price:$409.99Subtotal: -
FREE SHIPPING OVER $249
Chrome Upper Door Trim For Kenworth Daylight Doors
CAB FRESH FILTER CO.
$122.99Kenworth Daylight Cab Door Window Sill TrimThis pair of trim goes around the window sill on Kenworth Daylight Doors. Made of chrome plated plastic, it replaces the covers on factory interior door...02-1530031- SKU:
- 02-1530031
- Position:
- Upper
- Truck Class:
- Heavy Duty
- Location:
- Made In USA
- Material Options:
- Plastic/Poly
- Make:
- Kenworth
- Finish Options:
- Chrome-Plated
- Product Type:
- Interior
- Ready To Ship:
- Yes
$122.99Qty in Cart: 0Price:$122.99Subtotal: -
FREE SHIPPING OVER $249
Interior Fresh Air Filter For Peterbilt
CAB FRESH FILTER CO.
$22.07Peterbilt Interior Fresh Air Filter AssemblyKeep the inside of your cab fresh with this aftermarket interior filter from CAB Fresh. This filter features internal antimicrobials that stops mold...01-1503026- SKU:
- 01-1503026
- Truck Class:
- Heavy Duty
- Location:
- Made In USA
- Material Options:
- Cloth
- Make:
- Peterbilt
- Product Type:
- Interior
- Ready To Ship:
- Yes
$22.07Qty in Cart: 0Price:$22.07Subtotal: -
2.75 Inch SS Cable Anchor Assembly
AUTOMANN USA
$18.72Replacement Cable Anchor Assembly* High Quality Whiting Cable Anchor Assembly* Stainless Steel* Dimensions: - 2.75 Inch Length - 1.75 Inch C To C - 2.00 Inch Width* Sold Individually* Warranty On...19-15300001- SKU:
- 19-15300001
- Product Type:
- Trailer
- Truck Class:
- Heavy Duty
- Make:
- Trailer
- Material Options:
- Stainless Steel
- Width Options:
- 2 Inch
- Length Options:
- 2 3/4 Inch
$18.72Qty in Cart: 0Price:$18.72Subtotal: -
FREE SHIPPING OVER $249
Pre-Filter For Air Cleaner For Kenworth & Peterbilt
CAB FRESH FILTER CO.
$33.71Pre-Filter For Air Cleaner Fits Kenworth & PeterbiltWe offer aftermarket CAB Fresh pre-filters for air cleaners that fits Kenworth T680, T880, Peterbilt 567 and 579 big rigs. It features activated...29-0905708- SKU:
- 29-0905708
- Truck Class:
- Heavy Duty
- Location:
- Made In USA
- Material Options:
- Cloth
- Make:
- Peterbilt
- Make:
- Kenworth
- Product Type:
- Exterior
- Ready To Ship:
- Yes
$33.71Qty in Cart: 0Price:$33.71Subtotal: -
FREE SHIPPING OVER $249
Interior Fresh Air Filter Assembly For Peterbilt
CAB FRESH FILTER CO.
$46.91Peterbilt Fresh Air Filter AssemblyFind aftermarket interior filters with assembly from CAB Fresh at 4 State Trucks. This filter features internal antimicrobials that stops mold growth, reduces odor...01-1503025- SKU:
- 01-1503025
- Location:
- Made In USA
- Truck Class:
- Heavy Duty
- Material Options:
- Cloth
- Make:
- Peterbilt
- Product Type:
- Interior
- Ready To Ship:
- Yes
$46.91Qty in Cart: 0Price:$46.91Subtotal: -
FREE SHIPPING OVER $249
Cab Fresh Filter Only For Freightliner Cascadia, Century, Columbia & Coronado
CAB FRESH FILTER CO.
$17.91Cab Fresh Filter Only Fits FreightlinerFind your Cab Fresh Replacement Filter at 4 State Trucks. The highly effective filter is made with a primary layer and charcoal layer that traps and eliminates...03-091306- SKU:
- 03-091306
- Location:
- Made In USA
- Truck Class:
- Heavy Duty
- Material Options:
- Cloth
- Make:
- Freightliner
- Product Type:
- Exterior
$17.91Qty in Cart: 0Price:$17.91Subtotal: -
FREE SHIPPING OVER $249
Air Filter Assembly For HVAC For Peterbilt & Kenworth
CAB FRESH FILTER CO.
$38.75Air Filter Assembly Fits Peterbilt & KenworthAt 4 State Trucks we offer aftermarket CAB Fresh air filter assemblies for Peterbilt 567 and 579 models, and Kenworth T680 and T880 models. The air filter...29-1503002- SKU:
- 29-1503002
- Truck Class:
- Heavy Duty
- Location:
- Made In USA
- Material Options:
- Cloth
- Make:
- Peterbilt
- Make:
- Kenworth
- Product Type:
- Interior
- Ready To Ship:
- Yes
$38.75Qty in Cart: 0Price:$38.75Subtotal: -
FREE SHIPPING OVER $249
Air Filter Assembly For HVAC No Housing For Peterbilt & Kenworth
CAB FRESH FILTER CO.
$14.27Air Filter Assembly Fits Peterbilt & KenworthWe offer aftermarket CAB Fresh air filter assemblies for Peterbilt 567 and 579 models, and Kenworth T680 and T880 models. The air filter is only for HVAC...29-1503003- SKU:
- 29-1503003
- Location:
- Made In USA
- Truck Class:
- Heavy Duty
- Material Options:
- Cloth
- Make:
- Kenworth
- Make:
- Peterbilt
- Product Type:
- Interior
- Ready To Ship:
- Yes
$14.27Qty in Cart: 0Price:$14.27Subtotal: -
FREE SHIPPING OVER $249
Interior Cab Fresh Air Filter Replacement For Peterbilt 377, 378, 379 & 385
CAB FRESH FILTER CO.
$43.85Peterbilt Interior Cab Fresh Air FilterThis air filter fits under the dashboard on the passenger side. Simply slide the filter into the existing track next to the passenger door. It replaces the...01-1503017- SKU:
- 01-1503017
- Location:
- Made In USA
- Truck Class:
- Heavy Duty
- Material Options:
- Cloth
- Make:
- Peterbilt
- Product Type:
- Interior
- Ready To Ship:
- Yes
$43.85Qty in Cart: 0Price:$43.85Subtotal: