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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
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
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
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Merritt Dyna-Light Aluminum Cab Rack 68 X 80 Inch W/ 2 Side Enclosures & Locking Doors 18 X 9 Inch
MERRITT
$4,692.99Diamond Plate Aluminum Cab Rack W/ Radius Corners & HangersReinforce your truck with the Merritt Dyna-Light 2 Door Cab Rack 68 x 80 Inch, a high-strength aluminum rack with diamond plate construction...320381M0098- SKU:
- 320381M0098
- Material Options:
- Aluminum
- Truck Class:
- Heavy Duty
- Finish Options:
- Diamond Plate
- Make:
- Universal Items
- Product Type:
- Cargo Control
$4,692.99Qty in Cart: 0Price:$4,692.99Subtotal: -
Brass Square Head Plug 1/2 Inch
TRAMEC SLOAN
$5.78.5 Inch Square Head Solid Plug Brass Fitting - Threaded* High Quality Head Plug* Brass* 1/2 Inch * Square* Sold Individually* Warranty On Head Plugs Against Defects In Workmanship & Material From...BP1098- SKU:
- BP1098
- Truck Class:
- Heavy Duty
- Material Options:
- Brass
- Diameter Options:
- 1/2 Inch
- Ready To Ship:
- Yes
- Make:
- Universal Items
- Product Type:
- Air, Electrical, & Safety
$5.78Qty in Cart: 0Price:$5.78Subtotal: -
Air Brake Camshaft Bushing 2 OD X 1.313 - E-2407
AUTOMANN USA
$1.14Brake Camshaft Bushing* High Quality Camshaft Bushing * Dimensions: - 1.875 Inch ID - 2 Inch OD - 1.313 Inch Length* Sold Individually* Warranty On Camshaft Bushing Brakes Against Defects In...19-05180098- SKU:
- 19-05180098
- Diameter Options:
- 2 Inch
- Material Options:
- Steel
- Truck Class:
- Heavy Duty
- Make:
- Trailer
- Product Type:
- Trailer
$1.14Qty in Cart: 0Price:$1.14Subtotal: -
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: -
Shackle Hanger Replaces 1618102001 For Freightliner Cascadia 113, 125
AFTERMARKET
$40.49Driver Or Passenger Side Shackle Hanger, 7.656 Inch Center To Center* High Quality Shackle Hanger * 7.656 Inch C To C* Driver And Passenger Side * Sold Individually * Warranty On Shackle Hangers...03-05090098- SKU:
- 03-05090098
- Truck Class:
- Heavy Duty
- Material Options:
- Steel
- Color:
- Black
- Make:
- Freightliner
- Product Type:
- Frame & Chassis
$40.49Qty in Cart: 0Price:$40.49Subtotal: -
BESTfit Silent Block Spring Pin W/ Bushing For Kenworth
BESTFIT TRUCK PARTS
$40.47Kenworth Silent Block Spring Pin W/ Bushing By BESTfitMaintain smooth and quiet operation with the BESTfit Silent Block Spring Pin W/ Bushing for Kenworth. With 5.75 inch center-to-center and 7...29-050984- SKU:
- 29-050984
- Truck Class:
- Heavy Duty
- Make:
- Kenworth
- Product Type:
- Frame & Chassis
$40.47Qty in Cart: 0Price:$40.47Subtotal: -
23 Inch T-Rod Crimped Rubber Rotational For Freightlinier W/ FAS II Suspension
AFTERMARKET
$158.99Fixed T-Rod With Crimped End DesignMaximize the stability and handling of your Freightliner with the 23 Inch T-Rod Crimped Rubber Rotational, built for FAS II suspension systems. Featuring a 23-inch...03-05100098- SKU:
- 03-05100098
- Material Options:
- Steel
- Truck Class:
- Heavy Duty
- Make:
- Freightliner
- Product Type:
- Frame & Chassis
$158.99Qty in Cart: 0Price:$158.99Subtotal: -
Stainless Steel Upper Left Kick Panel For Peterbilt
ROADWORKS
$12.95Upper Left Kick Panel Trim Fits Peterbilt* High Quality Upper Left Kick Panel* Made Of Stainless Steel* Made In USA* Sold Individually* Warranty On Panel Trim Against Defects In Workmanship &...01-1504098- SKU:
- 01-1504098
- Position:
- Upper
- Location:
- Made In USA
- Truck Class:
- Heavy Duty
- Material Options:
- Stainless Steel
- Make:
- Peterbilt
- Product Type:
- Interior
$12.95Qty in Cart: 0Price:$12.95Subtotal: -
BESTfit 4 ID/OD X 18 Inch OAL 90 Degree Chrome-Plated Steel Elbow
BESTFIT TRUCK PARTS
$264.99BESTfit 4 Inch ID-OD X 18 Inch OAL 90 Degree Chrome-Plated Steel Elbow* High Quality Elbow* Chrome-Plated Steel * Dimensions - 36 Inch Overall Length (18x18) - 4 Inch ID/OD - 90 Degree Angle - 4...09-080100098- SKU:
- 09-080100098
- Truck Class:
- Universal
- Diameter Options:
- 4 Inch
- Style Options:
- Elbow
- Material Options:
- Steel
- Degree Options:
- 90
- Make:
- Universal Items
- Finish Options:
- Chrome-Plated
- Length Options:
- 18 Inch
- Product Type:
- Exhaust
$264.99Qty in Cart: 0Price:$264.99Subtotal: -
Rubber Oiler Plug For Hubcap
LIFETIME NUT COVERS
$8.35Replacement Oil Plug For Hubcap* High Quality Oil Plug* Made Of Rubber* For Hubcap 29-050930* Made In USA* Sold Individually* Warranty On Oil Plugs Against Defects In Workmanship & Material From Date...29-050983- SKU:
- 29-050983
- Truck Class:
- Heavy Duty
- Location:
- Made In USA
- Material Options:
- Rubber
- Make:
- Kenworth
- Make:
- Peterbilt
- Product Type:
- Frame & Chassis
$8.35Qty in Cart: 0Price:$8.35Subtotal: -
SS 5 Inch Sleeper Panels W/ 3/4 Inch Button Light Holes For Peterbilt 379, 389, 389 Glider W/ 63 Inch Sleeper
TWELVE GAUGE
$327.99Stainless Steel Sleeper Panels With 3/4 Inch Button Light Cutouts By 12 Gauge* High Quality Sleeper Panel* Made Of Stainless Steel* Fits 63 Inch Sleeper With Extensions* 3/4 Inch Button Style Light...01-1012098- SKU:
- 01-1012098
- Material Options:
- Stainless Steel
- Truck Class:
- Heavy Duty
- Make:
- Peterbilt
- Product Type:
- Exterior
$327.99Qty in Cart: 0Price:$327.99Subtotal: -
Chrome Dallas Style Grooved Grip Handle With Beer Tap Adapter
UNITED PACIFIC
$80.99Bear Faucet Grooved Grip HandleThis Dallas-style grooved grip handle with a beer tap adapter is built to impress. It features a durable, triple chrome-plated finish that looks great and lasts. The...09-15130986- SKU:
- 09-15130986
- Product Type:
- Interior
- Finish Options:
- Chrome-Plated
- Make:
- Universal Items
$80.99Qty in Cart: 0Price:$80.99Subtotal: -
SS CB Radio Extended Bracket For Cobra 25, Uniden 66/68
ROADWORKS
$20.18Extended Bracket For Cobra 25 or Uniden 66/68 RadioUpgrade your radio setup with this extended bracket for enhanced convenience and functionality.* High Quality Extended Bracket* Stainless Steel*...09-14070098- SKU:
- 09-14070098
- Product Type:
- Interior
- Material Options:
- Stainless Steel
- Location:
- Made In USA
- Make:
- Universal Items
$20.18Qty in Cart: 0Price:$20.18Subtotal: -
Passenger Side Aluminum Front Fender By BESTfit For Peterbilt 379
BESTFIT TRUCK PARTS
$447.99BESTfit Aluminum Front Fender- Passenger SideRestore your Peterbilt 379 to peak performance and pristine appearance with the BESTfit Passenger Side Aluminum Front Fender. Made from aluminum, it's...01-127000098- SKU:
- 01-127000098
- Product Type:
- Hood Parts & Acc.
- Material Options:
- Aluminum
- Position:
- Passenger Side
- Make:
- Peterbilt
- Length Options:
- 127 BBC
$447.99Qty in Cart: 0Price:$447.99Subtotal: -
FREE SHIPPING OVER $249
Charlotte Style Gearshift Knob M30 X 3.5 Female Thread-On - Finish Option W/ LED Option & Adapter Option
UNITED PACIFIC
$108.99Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksCharlotte Style Gearshift Knob M30 X 3.5 Female Thread-On - Matte Black W/ Green Led & Adapter For...PPR_300984- SKU:
- PPR_300984
- Type Options:
- Thread On
- Finish Options:
- Black Powder Coat
- Location:
- Made In USA
- Finish Options:
- Chrome-Plated
- Material Options:
- Aluminum
- Color:
- Green
- Width Options:
- 2 1/2 Inch
- Height Options:
- 4 Inch
- Product Type:
- Interior
- Color:
- Purple
- Length Options:
- 2 Inch
- Style Options:
- Charlotte Style
- Make:
- Universal Items
$108.99Qty in Cart: 0Price:$108.99Subtotal: -
4 Inch Stainless Steel Cab Panels, Blank For Peterbilt 567, 579 W/ Side Fairings
PHOENIX DESIGN
$176.99Cab Panels Fit Peterbilt 567 & 579 W/ Rear Mount Or Horizontal ExhaustImprove your Peterbilt's visibility and style with this pair of 4 Inch Stainless Steel Cab Panels featuring four P1 Amber/Amber...01-091200098- SKU:
- 01-091200098
- Location:
- Made In USA
- Light Options:
- With Lights
- Truck Class:
- Heavy Duty
- Material Options:
- Stainless Steel
- Make:
- Peterbilt
- Finish Options:
- Polished
- Length Options:
- 42 Inch
- Product Type:
- Exterior
$176.99Qty in Cart: 0Price:$176.99Subtotal: -
FREE SHIPPING OVER $249
Corner Angle Outside Door Trim For Peterbilt 389
VALLEY CHROME PLATING
$18.35Valley Chrome Outside Door Trim Fits Peterbilt* High Quality Outside Door Trim* Corner Angle* Made In USA* Sold As Pair* Warranty On Outside Door Trim Against Defects In Workmanship & Material From...01-0914098- SKU:
- 01-0914098
- Truck Class:
- Heavy Duty
- Make:
- Peterbilt
- Product Type:
- Exterior
$18.35Qty in Cart: 0Price:$18.35Subtotal: -
FREE SHIPPING OVER $249
8 Inch Stainless Steel Door Chops For Kenworth T680 & T880
UNITED PACIFIC
$80.998 Inch Stainless Steel Door Chops Fits Kenworth T680 & T880Are you looking to update your door trim? 4 State Trucks can help you add shine to your truck with this pair of mirror like 304 grade...02-0914098- SKU:
- 02-0914098
- Truck Class:
- Heavy Duty
- Material Options:
- Stainless Steel
- Make:
- Kenworth
- Height Options:
- 8 Inch
- Product Type:
- Exterior
- Ready To Ship:
- Yes
$80.99Qty in Cart: 0Price:$80.99Subtotal: -
FREE SHIPPING OVER $249
3/4 Inch Short Top Hat Nut Covers -10 Pack
AFTERMARKET
$12.89Top Hat Nut Covers* Made Of High Quality Chrome Plated Plastic* 3/4 Inches* Sold As Pack* Warranty On Nut Covers Against Defects In Workmanship & Material From Date Of Purchase*** High Quality...09-050609810- SKU:
- 09-050609810
- Truck Class:
- Universal
- Material Options:
- Plastic/Poly
- Make:
- Universal Items
- Finish Options:
- Chrome-Plated
- Product Type:
- Frame & Chassis
- Ready To Ship:
- Yes
$12.89Qty in Cart: 0Price:$12.89Subtotal: -
9 Diode LED Square Wide Angle Work Light 2160 Lumen
UNITED PACIFIC
$54.99LED Work Light Black Square* 9 LED Diode* 2160 Lumens* Clear Lens* Single Stud Mount* 12 Volt / 24 Volt * Sold Individually* Warranty On Square Work Lights against defects in workmanship & material...09-1614098- SKU:
- 09-1614098
- Lumens:
- 2001 to 4999 Lumens
- Truck Class:
- Universal
- Shape Options:
- Square
- Make:
- Universal Items
- Material Options:
- Plastic/Poly
- Product Type:
- Lighting
$54.99Qty in Cart: 0Price:$54.99Subtotal: