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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
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
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
Blatant Signs Your Turbocharger is Failing (And When to Replace it) (Post)If your semi truck turbocharger is failing, you'll encounter a few common signs. In this post, we'll cover what those are, and similar symptoms that aren't actually the turbo, but a related part. Sig
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
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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FREE SHIPPING OVER $249
5 Inch Aluminized Multi-Bend Turbo Pipe Replaces 04-17094-012 For Freightliner FLD
AFTERMARKET
$124.99Multi-Bend 5 Inch Aluminized Turbo Pipe Without Pyrometer Fitting Fits Freightliner FLD* High Quality Multi-Bend Turbo Pipe* Made Of Aluminized Steel* Multi-Bend Turbo Pipe For Freightliner* 5 Inch...03-08140120- SKU:
- 03-08140120
- Material Options:
- Steel
- Finish Options:
- Chrome-Plated
- Truck Class:
- Heavy Duty
- Product Type:
- Exhaust
- Make:
- Freightliner
$124.99Qty in Cart: 0Price:$124.99Subtotal: -
High Flow Performance Air Filter With Washable Element Media For Freightliner, International & Ford
FLEET FILTERS
$443.99High Flow Performance Air Filter With Washable Element Media Fits Freightliner, InternationalYou never need to waste money on paper filters again! 4 State Trucks proudly offers Fleet Air Filters, the...29-071300012- SKU:
- 29-071300012
- Truck Class:
- Heavy Duty
- Make:
- Sterling
- Product Type:
- Engine Parts
$443.99Qty in Cart: 0Price:$443.99Subtotal: -
Aluminized Steel Exhaust Elbow Replaces 04-17094-012 For Freightliner
UNITED PACIFIC
$131.99Aluminized Exhaust ElbowThis aluminized steel exhaust elbow for excellent rust resistance replaces. Made for specific Freightliner models, it replaces part number 17094-012. Shop 4 State Trucks for...03-08070003- SKU:
- 03-08070003
- Material Options:
- Aluminized Steel
- Truck Class:
- Heavy Duty
- Style Options:
- Elbow Multi-Bend
- Make:
- Freightliner
- Product Type:
- Exhaust
$131.99Qty in Cart: 0Price:$131.99Subtotal: -
FASS Fuel Filter Housing Delete For Cummins 6.7L Engine 2010-2018
FASS
$63.99Fuel Filter Housing DeleteStreamline your diesel fuel system with the FASS Fuel Filter Housing Delete for 2010-2018 Ram 6.7L Cummins engines. This high-quality delete kit is engineered to remove the...29-070300012- SKU:
- 29-070300012
- Style Options:
- Cummins
- Product Type:
- Engine Parts
- Make:
- Universal Items
$63.99Qty in Cart: 0Price:$63.99Subtotal: -
FASS Spin- On Water Separator Fuel Filter For FASS Drop- In Series Fuel System
FASS
$35.19Spin- On Water Separator Fuel Filter Use With FASS Drop- In Series Fuel SystemsEnsure cleaner fuel and better engine protection with the FASS Spin-On Water Separator Fuel Filter designed for FASS...09-07030012- SKU:
- 09-07030012
- Product Type:
- Engine Parts
- Make:
- Universal Items
$35.19Qty in Cart: 0Price:$35.19Subtotal: -
Stainless Steel Passenger Side Exhaust Filter For Peterbilt 300 Series
PHOENIX DESIGN
$341.99Passenger Side Exhaust Filter* High Quality Exhaust Filter* Cab/Cowl 1 Piece (Bodyline)* Stainless Steel* Passenger Side* Sold Individually* Warranty On Exhaust Filters Against Defects In Workmanship...01-0912012331- SKU:
- 01-0912012331
- Product Type:
- Exhaust
- Position:
- Passenger Side
- Material Options:
- Stainless Steel
- Make:
- Peterbilt
$341.99Qty in Cart: 0Price:$341.99Subtotal: -
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BLEMISHED: Stainless Steel DPF Filter Cover For Peterbilt 389
4 STATE TRUCKS
$879.99Peterbilt 389 SS DPF Filter CoverNormally $1,573.99 Plus Shipping, Buy This One Now For $1,145.00 with Free Shipping! You Save $425+ Plus Shipping Cost!***MINOR SURFACE SCRATCHES-BLEMISHED...ZB10001249- SKU:
- ZB10001249
- Product Type:
- Exhaust
$879.99Qty in Cart: 0Price:$879.99Subtotal: -
FREE SHIPPING OVER $249
BESTfit Cabin Air Filter 14 X 6 Inch For Mack CV, CX & CH Replaces 82745222
BESTFIT TRUCK PARTS
$23.9914 X 6 Inch Cabin Air Filter By BESTfit Fits Mack CV, CX & CH Replaces 82745222Improve cab air quality and HVAC performance with the BESTfit Cabin Air Filter for Mack CV, CX, and CH trucks, designed...11-150300012- SKU:
- 11-150300012
- Product Type:
- Interior
- Width Options:
- 1 Inch
- Length Options:
- 14 Inch
- Height Options:
- 6 Inch
- Make:
- Mack
$23.99Qty in Cart: 0Price:$23.99Subtotal: -
BESTfit 6.25 X 12.375 X 1.25 Inch Paper Cabin Air Filter Replaces 3839141-C1 For International
BESTFIT TRUCK PARTS
$14.99BESTfit Paper Cabin Air Filter Fits International* High Quality Cabin Air Filter* Length: 12-3/8 Inch * Height: 6-1/4 Inch * Thickness: 1-1/4 Inch * Sold Individually* Warranty On Cabin Air Filter...07-150300012- SKU:
- 07-150300012
- Truck Class:
- Heavy Duty
- Length Options:
- 12 Inch
- Make:
- International
- Product Type:
- Interior
$14.99Qty in Cart: 0Price:$14.99Subtotal: -
FREE SHIPPING OVER $249
Dock Bumper Rubber 3 X 6 X 3 Inch Dock Bumper
AUTOMANN USA
$12.71Dock Bumper- 3 X 6 X 3 Inch Replaces B5500, 31497, 43445Safeguard your loading areas with the Rubber 3 X 6 X 3 Inch Dock Bumper, designed to absorb impact and prevent costly damage. Constructed from...09-012500- SKU:
- 09-012500
- Truck Class:
- Universal
- Make:
- Universal Items
- Ready To Ship:
- Yes
- Height Options:
- 3 Inch
- Product Type:
- Bumpers
- Length Options:
- 3 1/2 Inch
- Width Options:
- 6 Inch
- Material Options:
- Rubber
$12.71Qty in Cart: 0Price:$12.71Subtotal: -
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Carrier Bearing Kit With Bracket Replaces 210121-1X CB2101211XSA
OPP - ORIGINAL PARTS PROGRAM
$108.99Carrier Bearing Kit* High Quality Carrier Bearing Kit* 17N Series With Bracket* Sold As Kit* Warranty On Hub Adapter Against Defects In Workmanship & Material From Date Of Purchase*|** This Is An OEM...CB2101211XSA- SKU:
- CB2101211XSA
- Truck Class:
- Heavy Duty
- Make:
- Universal Items
- Product Type:
- Frame & Chassis
$108.99Qty in Cart: 0Price:$108.99Subtotal: -
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: -
Drag Link 21 Inch C To C - 1417547000 For Freightliner MT55
AFTERMARKET
$220.9921 Inch C To C Drag Link Replaces 1417547000, 14-17547-000* High Quality Drag Link* 21.00 Inch C To C* E To E- 14.50 Inch* Taper Pin Minor Diameter 1- 0.97 Inch* Taper Pin Major Diameter 1- 1.102...03-05090012- SKU:
- 03-05090012
- Truck Class:
- Heavy Duty
- Length Options:
- 14 1/2 Inch
- Material Options:
- Steel
- Make:
- Freightliner
- Product Type:
- Frame & Chassis
$220.99Qty in Cart: 0Price:$220.99Subtotal: -
Drag Link 28.375 Inch C To C Replaces L24VU8006A11 For Kenworth T600
AFTERMARKET
$274.9928.375 Inch C To C Drag Link Replaces L24VU8006A11, L24VU8006B11Restore accurate steering response on your Kenworth T600 with the 28.375-inch C to C Drag Link. With shaft diameter of 1.44 inches,...02-05090012- SKU:
- 02-05090012
- Length Options:
- 28 Inch
- Material Options:
- Steel
- Truck Class:
- Heavy Duty
- Make:
- Kenworth
- Product Type:
- Frame & Chassis
$274.99Qty in Cart: 0Price:$274.99Subtotal: -
Door-Mounted Name Plate Replaces A22-68830-012, A22-68830-014 For Western Star 5700XE 2018-Current
OPP - ORIGINAL PARTS PROGRAM
$48.85Name Plate For Western Star 5700XE* High Quality Name Plate* Door Mounted * Sold Individually * Warranty On Name Plate Against Defects In Workmanship & Material From Date Of Purchase* Replaces OE...14-0914001OE- SKU:
- 14-0914001OE
- Truck Class:
- Heavy Duty
- Make:
- Western Star
- OEM:
- OEM
- Product Type:
- Exterior
$48.85Qty in Cart: 0Price:$48.85Subtotal: -
BESTfit 6.625 X 12.0625 X 2.625 Inch AC Evaporator Replaces 3670125-C91, 3670132-C1 For International
BESTFIT TRUCK PARTS
$240.99BESTfit AC Evaporator With Expansion Block Fits International 4000, 7000, 8000, LoneStar & ProStar* High Quality AC Evaporator* Height: 6 5/8 Inch* Length: 12 1/16 Inch* Inlet: #8 Bead Into Txv*...07-070000012- SKU:
- 07-070000012
- Truck Class:
- Heavy Duty
- Make:
- International
- Product Type:
- Engine Parts
$240.99Qty in Cart: 0Price:$240.99Subtotal: -
BESTfit Charge Air Cooler 28.69 X 26.41 X 2.21 Inch Replaces 1E3385, 1E3470 For Kenworth T600, T800, W900 1988-2007
BESTFIT TRUCK PARTS
$879.99Tube & Fin Charge Air Cooler 4 Inch Inlet & Outlet By BESTfit Replaces 1E3385, 1E3470* High Quality CAC Tube * Construction: Brazed* Core Size: - 28.69 Height - 26.41 Width - 2.21 Depth * 4.00...02-070123- SKU:
- 02-070123
- Truck Class:
- Heavy Duty
- Make:
- Kenworth
- Product Type:
- Engine Parts
- Ready To Ship:
- Yes
$879.99Qty in Cart: 0Price:$879.99Subtotal: -
Large A/C Vent Cover For Kenworth W900
GRAND GENERAL
$3.50Large A/C Vent Cover* High Quality A/C Vent Cover* Chrome-Plated Plastic* Sold Individually* Warranty On A/C Vent Covers Against Defects In Workmanship & Material From Date Of Purchase*** High...02-16020012- SKU:
- 02-16020012
- Product Type:
- Interior
- Truck Class:
- Heavy Duty
- Make:
- Kenworth
$3.50Qty in Cart: 0Price:$3.50Subtotal: -
BESTfit Fuel Sender Replaces A22-68359-012 For Freightliner M2 With 18 Inch Rectangular Tank
BESTFIT TRUCK PARTS
$81.99Fuel Sender By BESTfit Fits Freightliner M2 With 18 Inch Rectangular Tank* High Quality Fuel Level Sender* For Trucks With 18 Inch Tall Rectangular Fuel Tanks* Restore Proper Fuel Gauge Readings With...03-060317- SKU:
- 03-060317
- Truck Class:
- Heavy Duty
- Shape Options:
- Rectangular
- Make:
- Freightliner
- Product Type:
- Fuel Tanks
$81.99Qty in Cart: 0Price:$81.99Subtotal: -
FREE SHIPPING OVER $249
Stainless Steel AC Heater Plate For Peterbilt
UNITED PACIFIC
$29.18A/C Control Plate Fits Peterbilt* High Quality Control Plate* Made Of High Quality Stainless Steel* For Older Models * Sold Individually* Warranty On Control Plate Against Defects In Workmanship &...01-1503012- SKU:
- 01-1503012
- Truck Class:
- Heavy Duty
- Material Options:
- Stainless Steel
- Make:
- Peterbilt
- Product Type:
- Interior
$29.18Qty in Cart: 0Price:$29.18Subtotal: