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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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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: -
FREE SHIPPING OVER $249
Intake Pre-Filter Cap For Freightliner Cascadia 113 & 125
FREEDOM AIR FILTERS
$75.99Intake Pre-Filter Cap Fits Freightliner Cascadia* High Quality Polyester * Fits Over Air Cleaner Housing Inlet 13.5 Inch Diameter* Color Black* UV Resistant* Sold Individually* Warranty On...03-072300- SKU:
- 03-072300
- Truck Class:
- Heavy Duty
- Color:
- Black
- Material Options:
- Plastic/Poly
- Make:
- Freightliner
- Product Type:
- Exterior
- Ready To Ship:
- Yes
$75.99Qty in Cart: 0Price:$75.99Subtotal: -
Bendix Type PP8 Dash Control Valve - Replaces 287567BXW, KN20035, 287238N
AUTOMANN USA
$42.03Push-Pull Dash Control ValveAchieve dependable air brake operation with the Bendix Type PP8 Dash Control Valve, designed as a replacement for 287567BXW, KN20035, and 287238N. Its push-pull mechanism...287238- SKU:
- 287238
- Truck Class:
- Heavy Duty
- Product Type:
- Air, Electrical, & Safety
$42.03Qty in Cart: 0Price:$42.03Subtotal: -
FREE SHIPPING OVER $249
5 Inch Exhaust Hanger Clamps K077-234 For Kenworth T800
OPP - ORIGINAL PARTS PROGRAM
$77.995 Inch Exhaust Hanger Clamps For Kenworth* High Quality Hanger Clamps* Sold Individually* Warranty On Clamps Against Defects In Workmanship & Material From Date Of Purchase*** This Is An OEM...02-08472340- SKU:
- 02-08472340
- Truck Class:
- Heavy Duty
- Length Options:
- 5 Inch
- Make:
- Kenworth
- Product Type:
- Exhaust
$77.99Qty in Cart: 0Price:$77.99Subtotal: -
Air Restriction Indicator - Replaces A22 - 72244 - 000 For Western Star 5700XE 2016+
OPP - ORIGINAL PARTS PROGRAM
$22.43Air Restriction Indicator For Western Star 5700XE* High Quality Air Restriction Indicator* Sold Individually* Warranty On Air Restriction Indicators Against Defects In Workmanship & Material From...14-0723000OE- SKU:
- 14-0723000OE
- Truck Class:
- Heavy Duty
- Make:
- Western Star
- OEM:
- OEM
- Product Type:
- Interior
$22.43Qty in Cart: 0Price:$22.43Subtotal: -
FREE SHIPPING
BESTfit 3 Piece Exhaust Manifold Kit, Turbo Mount - High / Flat Center Section For Detroit 60 Series Engine
BESTFIT TRUCK PARTS
$479.99BESTfit Exhaust Manifold Kit With High & Flat Center Turbo MountIntroducing BESTfit CHROME EXHAUST KITS! These Kits Are Installer-Friendly, Produced With All High Quality Components, Offer The Best...29-0723512896- SKU:
- 29-0723512896
- Truck Class:
- Heavy Duty
- Product Type:
- Engine Parts
$479.99Qty in Cart: 0Price:$479.99Subtotal: -
Flywheel Housing With 12MM Mounting Holes By BESTfit For Detroit 60 Series
BESTFIT TRUCK PARTS
$851.99BESTfit Aluminum Flywheel Housing, Replaces 23505073This aftermarket aluminum flywheel housing for the Detroit 60 Series incorporates SAE #1 12mm mounting holes. The starter is on the left driver's...29-0723505073- SKU:
- 29-0723505073
- Truck Class:
- Heavy Duty
- Material Options:
- Aluminum
- Make:
- International
- Make:
- Freightliner
- Make:
- Kenworth
- Make:
- Peterbilt
- Product Type:
- Engine Parts
$851.99Qty in Cart: 0Price:$851.99Subtotal: -
RigMaster Electric Fan Puller 12 Volt 10 Blade
RIGMASTER
$102.9912v Puller Electric Fan - RP7-230* High Quality Electric Fan * 12 Volt* 10 Blades* Sold Individually* Warranty On Electric Fans Against Defects In Workmanship & Material From Date Of Purchase*** High...RP7230- SKU:
- RP7230
- Material Options:
- Plastic/Poly
- Truck Class:
- Heavy Duty
- Make:
- Universal Items
- Product Type:
- Engine Parts
- Ready To Ship:
- Yes
$102.99Qty in Cart: 0Price:$102.99Subtotal: -
FREE SHIPPING OVER $249
Polyester Adjustable 2 Inch Wheel Tie Down Straps, Yellow For 13-16 Inch Tires
AFTERMARKET
$43.54Yellow Adjustable Wheel Tie Down Straps W/ 3000 lbs Breaking StrengthTransport vehicles safely and securely with these quality adjustable wheel tie down straps with J-hooks. Sold in pairs, they wrap...09-020723- SKU:
- 09-020723
- Truck Class:
- Universal
- Color:
- Yellow
- Material Options:
- Vinyl
- Make:
- Universal Items
- Product Type:
- Cargo Control
$43.54Qty in Cart: 0Price:$43.54Subtotal: -
RigMaster Electric Fan Puller 12 Volt 10 Blade - Side Mounted
RIGMASTER
$104.99APU Electric Fan with Female Delphi Connector - LG7-230The RigMaster APU fan help ensure optimal airflow and ventilation within the APU system, supporting efficient cooling and smooth operation. It...LG7230- SKU:
- LG7230
- Truck Class:
- Heavy Duty
- Material Options:
- Plastic/Poly
- Make:
- Universal Items
- Product Type:
- Engine Parts
$104.99Qty in Cart: 0Price:$104.99Subtotal: -
BESTfit Detroit 60 Series Flywheel SAE 1 23514177, 23511177, 23509709
BESTFIT TRUCK PARTS
$432.99BESTfit Flywheel With 10 Inch Opening, 20 Inch OD Ring Gear With 118 TeethThis high quality flywheel SAE 1 that fits the Detroit 60 series has a ring gear with 118 teeth, it has 12 bolt mounting...29-0723514177- SKU:
- 29-0723514177
- Truck Class:
- Heavy Duty
- Make:
- Universal Items
- Product Type:
- Engine Parts
- Diameter Options:
- 20 Inch
- Style Options:
- Flat
$432.99Qty in Cart: 0Price:$432.99Subtotal: -
150 Combination Coupling
PREMIER
$301.99150 Combination Coupling* High Quality Combination Coupling* 150 Coupling And 155 Ball Capacity MGTW- 10000 Lbs.* One Of Premiers Most Unique And Versatile Couplings Is Our Popular Model 150...09-051100723- SKU:
- 09-051100723
- Truck Class:
- Universal
- Location:
- Made In USA
- Rating:
- 20000 LBS
- Make:
- Universal Items
- Product Type:
- Frame & Chassis
$301.99Qty in Cart: 0Price:$301.99Subtotal: -
BESTfit Detroit 60 Series Flywheel Housing With 14MM Mounting Holes
BESTFIT TRUCK PARTS
$963.99BESTfit Aluminum Flywheel Housing, Replaces 23522643When precision matters, trust the BESTfit Detroit 60 Series Flywheel Housing to maintain your engine's performance. Made from durable aluminum,...29-0723522643- SKU:
- 29-0723522643
- Truck Class:
- Heavy Duty
- Material Options:
- Aluminum
- Make:
- Kenworth
- Make:
- International
- Make:
- Peterbilt
- Make:
- Freightliner
- Product Type:
- Engine Parts
$963.99Qty in Cart: 0Price:$963.99Subtotal: -
Strap Mount Front Air Cleaner Bracket Kit With 5 Watermelon Light Holes - Pair For Peterbilt 589
JML KUSTOMS
$346.99Peterbilt 589 Front Air Cleaner Brackets with Watermelon Light MountsThese strap-mount front air cleaner brackets fit the Peterbilt 589 and are designed to hold five watermelon-style lights...01-090500723- SKU:
- 01-090500723
- Material Options:
- Stainless Steel
- Light Options:
- Without Lights
- Product Type:
- Exterior
- Make:
- Peterbilt
$346.99Qty in Cart: 0Price:$346.99Subtotal: -
3 Inch Stainless Steel Extended Cab Panels W/ 14 - 2 Inch Light Holes For Peterbilt 388, 389 123 BBC
PHOENIX DESIGN
$188.993 Inch Extended Cab Panels W/ 14 - 2 Inch Light Holes Fits Peterbilt 388 & 389 123 BBC* High Quality Cab Panels* Made Of 304 Stainless Steel* Extended* 7 - 2 Inch Round Light Holes Per Side* Lights...01-091200723- SKU:
- 01-091200723
- Location:
- Made In USA
- Light Options:
- Without Lights
- Truck Class:
- Heavy Duty
- Material Options:
- Stainless Steel
- Make:
- Peterbilt
- Finish Options:
- Polished
- Length Options:
- 48 Inch
- Product Type:
- Exterior
$188.99Qty in Cart: 0Price:$188.99Subtotal: -
FREE SHIPPING
Detroit 60 Series Engine 3 Piece Exhaust Manifold Kit, Turbo Mount - Medium Angled Center Section By BESTfit
BESTFIT TRUCK PARTS
$370.99BESTfit Exhaust Manifold Kit With Medium Angled Center Turbo MountIntroducing BESTfit CHROME EXHAUST KITS! These Kits Are Installer-Friendly, Produced With All High Quality Components, Offer The Best...29-0723512897- SKU:
- 29-0723512897
- Truck Class:
- Heavy Duty
- Product Type:
- Engine Parts
- Ready To Ship:
- Yes
$370.99Qty in Cart: 0Price:$370.99Subtotal: -
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: -
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
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: