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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
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 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
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
How to Choose the Right W990 Drop Visor(Post)The best Kenworth W990 drop visor depends on your design preference, mounting configuration, and windshield type or cab style (curved or flat). Buying a Custom W990 Truck Visor Online? If you're brow
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
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.
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
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
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
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
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
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
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
7 Best Exterior Chrome Upgrades for the Kenworth W900A(Post)Outfit your Kenworth W900A model with stunning exterior chrome accessories and stainless-steel upgrades that seamlessly tie together the entire truck’s theme. Classic big rig owners take a lot of prid
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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: -
3 Layer Replacement Air Filter Wrap For 29-071300015 High Performance Air Filter For International 9000 Series & Peterbilt 348
FLEET FILTERS
$195.993 Layer Replacement Air Filter Wrap For High Performance Air Filter* High Quality Replacement Air Filter Wrap* For 29-071300015* 3 Layer Design* Does Not Come Pre-Oiled* Oil Is Required Before...29-071300017- SKU:
- 29-071300017
- Truck Class:
- Heavy Duty
- Make:
- Peterbilt
- Product Type:
- Engine Parts
$195.99Qty in Cart: 0Price:$195.99Subtotal: -
1-Piece Stainless Steel Diesel Particulate Filter Replaces 4352922, 4352922NX For Cummins ISM Engine
GLOBAL EMISSIONS
$1,924.991-Piece Stainless Steel Diesel Particulate Filter Fits Cummins ISM Engine* High Quality Diesel Particulate Filter* Made Of Stainless Steel * Exclusive 1-Piece Canister Design For Durability* OEM...29-080600017- SKU:
- 29-080600017
- Truck Class:
- Heavy Duty
- Style Options:
- Cummins
- Material Options:
- Stainless Steel
- Make:
- Universal Items
- Product Type:
- Exhaust
$1,924.99Qty in Cart: 0Price:$1,924.99Subtotal: -
High Flow Performance Air Filter W/ Washable Element For Freightliner, Kenworth, Peterbilt & Western Star - Pair
FLEET FILTERS
$839.99High Flow Performance Air Filter W/ Washable Element Fits Freightliner, Kenworth, Peterbilt, Western Star - PairYou never need to waste money on paper filters again! 4 State Trucks proudly offers...29-090500017- SKU:
- 29-090500017
- Truck Class:
- Heavy Duty
- Make:
- Peterbilt
- Make:
- Kenworth
- Product Type:
- Exterior
$839.99Qty in Cart: 0Price:$839.99Subtotal: -
FASS Drop- In Series Fuel System Filter Pack W/ 1 Extreme Water Separator Filters & 1 Coalescing Water Separator
FASS
$60.99Drop- In Series Fuel System Filter Pack W/ 1 Extreme Water Separator Filters & 1 Coalescing Water SeparatorImprove fuel system protection and performance with this FASS Drop-In Series Fuel System...09-07030017- SKU:
- 09-07030017
- Product Type:
- Engine Parts
- Make:
- Universal Items
$60.99Qty in Cart: 0Price:$60.99Subtotal: -
BESTfit 3 Leaf Parabolic Spring - 8,200 lbs Capacity For Peterbilt 375/377, 357/378 SFA & 379 Replaces 2001799
BESTFIT TRUCK PARTS
$657.993 Leaf Parabolic Spring W/ 8200 Lb. Capacity By BESTfit Replaces 2001799 Fits Replaces 2001799Restore your truck's suspension performance with the BESTfit 4 Inch Wide 3-Leaf Parabolic Spring,...01-050900017- SKU:
- 01-050900017
- Width Options:
- 4 Inch
- Truck Class:
- Heavy Duty
- Product Type:
- Frame & Chassis
- Make:
- Peterbilt
- Rating:
- 8000 LBS
- Material Options:
- Steel
$657.99Qty in Cart: 0Price:$657.99Subtotal: -
FREE SHIPPING OVER $249
U-Bolt Kit 7/8 X 5.25 X 15.5 Inch Replaces 11-23583-001 & 681-325-03-25 For Freightliner FAS II Suspension
BESTFIT TRUCK PARTS
$54.99U Bolt Kit Includes Washers & Nuts For Freightliner FAS II Suspension* High Quality U Bolt Kit* Includes: - (2) U Bolts (Specialty Bend)* Dimensions: - 15.5 Inch Length - 5.25 Inch Width - 7/8...03-051017- SKU:
- 03-051017
- Width Options:
- 5 Inch
- Length Options:
- 15 Inch
- Truck Class:
- Heavy Duty
- Make:
- Freightliner
- Product Type:
- Frame & Chassis
$54.99Qty in Cart: 0Price:$54.99Subtotal: -
DEF Urea Filter Kit For Cummins ISL, ISB, ISC & PACCAR PX-6, PX-7, PX-9 Engine Replaces 1927474PE, 2014774PE, 21496419
DAYTON / DORMAN
$55.99Diesel Exhaust Fluid Urea Filter Kit Replaces 1927474PE, 2014774PE, 21496419 Fits Cummins & PACCAR EngineImprove emissions system reliability with this DEF Urea Filter Kit for Cummins and PACCAR...29-06070017- SKU:
- 29-06070017
- Style Options:
- Paccar
- Product Type:
- Fuel Tanks
- Make:
- Universal Items
$55.99Qty in Cart: 0Price:$55.99Subtotal: -
FREE SHIPPING OVER $249
34 X 57MM Rubber/Metal Intake Manifold Gasket Kit - Replaces 12529094, 8-12529-094-0, 8-89017-465-0
DAYTON / DORMAN
$125.9934 X 57MM Rubber/Metal Intake Manifold Gasket Kit* High Quality Intake Manifold Gasket Kit* Metal And Rubber* Includes - Upper And Lower Manifold Gaskets - Valve Cover Caskets - 8 Intake Bolts...29-071200017- SKU:
- 29-071200017
- Truck Class:
- Heavy Duty
- Make:
- Isuzu
- Product Type:
- Engine Parts
$125.99Qty in Cart: 0Price:$125.99Subtotal: -
32 Inch Nylon 11 Blade Fan Blade Replaces 3809753C1, 3809753C2, 47354461001, 85138, 010023828 For Cummins ISX, Caterpillar C13 Engines
AUTOMANN USA
$312.9932 Inch Fan Blade- 11 BladesProtect your engine from overheating with this durable 32 Inch Nylon 11 Blade Fan Blade, replacement for Cummins ISX and Caterpillar C13 trucks. Featuring 11 nylon blades,...29-07060178- SKU:
- 29-07060178
- Diameter Options:
- 32 Inch
- Product Type:
- Engine Parts
- Material Options:
- Nylon
- Make:
- Universal Items
- Ready To Ship:
- Yes
$312.99Qty in Cart: 0Price:$312.99Subtotal: -
OPP Fiberglass Hood Shell - Replaces A17-20220-017 For Western Star 5700XE 2016-2021
OPP - ORIGINAL PARTS PROGRAM
$12,321.99Western Star 5700XE Hood* High Quality Hood* Made In USA* Sold Individually* Warranty On Hoods Against Defects In Workmanship & Material From Date Of Purchase*|** This Is An OEM Replacement Part/ Not...14-12503- SKU:
- 14-12503
- Truck Class:
- Heavy Duty
- Material Options:
- Fiberglass
- Make:
- Western Star
- Finish Options:
- Paintable
- Location:
- Made In USA
- Product Type:
- Hood Shell
$12,321.99Qty in Cart: 0Price:$12,321.99Subtotal: -
3 Inch Stainless Cab Panel W/ 11 Total Amber/Amber P1 Lights For Peterbilt 389 131 BBC - Pair
PHOENIX DESIGN
$354.99Cab Panels W/ 11 Total Amber LED Amber Lens P1 Lights Fits Peterbilt 389 Extended HoodUpgrade the functionality and appearance of your Peterbilt 389 or 131 BBC with these 3-inch stainless steel cab...01-091200170- SKU:
- 01-091200170
- Light Options:
- With Lights
- Truck Class:
- Heavy Duty
- Location:
- Made In USA
- Material Options:
- Stainless Steel
- Make:
- Peterbilt
- Finish Options:
- Polished
- Length Options:
- 47 Inch
- Product Type:
- Exterior
$354.99Qty in Cart: 0Price:$354.99Subtotal: -
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: -
3 Inch Stainless Cab Panel W/ 11 Total Amber/Amber P3 Lights For Peterbilt 389 131 BBC - Pair
PHOENIX DESIGN
$354.99Cab Panels W/ 11 Total Amber LED Amber Lens P3 Lights Fits Peterbilt 389 Extended HoodOutfit your Peterbilt 389 with these premium 3 Inch Stainless Steel Cab Panels, designed for truckers who demand...01-091200172- SKU:
- 01-091200172
- Truck Class:
- Heavy Duty
- Light Options:
- With Lights
- Location:
- Made In USA
- Material Options:
- Stainless Steel
- Make:
- Peterbilt
- Finish Options:
- Polished
- Length Options:
- 47 Inch
- Product Type:
- Exterior
$354.99Qty in Cart: 0Price:$354.99Subtotal: -
3 Inch Stainless Cab Panel W/ 11 Total Amber/Clear P3 Lights For Peterbilt 389 131 BBC - Pair
PHOENIX DESIGN
$308.99Cab Panels W/ 11 Total Amber LED Clear Lens P3 Lights Fits Peterbilt 389 Extended HoodLight up the road with confidence by upgrading your Peterbilt 389 with these 3 Inch Stainless Steel Cab Panels,...01-091200173- SKU:
- 01-091200173
- Location:
- Made In USA
- Light Options:
- With Lights
- Truck Class:
- Heavy Duty
- Material Options:
- Stainless Steel
- Make:
- Peterbilt
- Finish Options:
- Polished
- Length Options:
- 47 Inch
- Product Type:
- Exterior
$308.99Qty in Cart: 0Price:$308.99Subtotal: -
BESTfit Wear Pad 3-1/8 ID X 1-11/32 OD Inch - 1160009 For Ridewell Lift
BESTFIT TRUCK PARTS
$8.09BESTfit 1/4 Inch Thick Ridewell Wear Pad, Replaces 1160009* High Quality Wear Pad* 3-1/8 Inch Washer OD* 1-11/32 Inch Washer ID* 1/4 Inch Thickness* Suspension Type* Ridewell Application* Sold...19-05180017- SKU:
- 19-05180017
- Material Options:
- Steel
- Diameter Options:
- 1 Inch
- Truck Class:
- Heavy Duty
- Make:
- Trailer
- Product Type:
- Trailer
$8.09Qty in Cart: 0Price:$8.09Subtotal: -
3 Inch Stainless Cab Panel W/ 11 Total Amber/Amber 2 Inch Round Lights For Peterbilt 389 131 BBC - Pair
PHOENIX DESIGN
$308.99Cab Panels W/ 11 Total Amber LED Amber Lens 2 Inch Round Lights Fits Peterbilt 389 Extended HoodDrive with confidence and style with this 3 Inch Stainless Cab Panel set featuring 11 total Amber/Amber...01-091200174- SKU:
- 01-091200174
- Truck Class:
- Heavy Duty
- Light Options:
- With Lights
- Location:
- Made In USA
- Material Options:
- Stainless Steel
- Make:
- Peterbilt
- Finish Options:
- Polished
- Length Options:
- 47 Inch
- Product Type:
- Exterior
$308.99Qty in Cart: 0Price:$308.99Subtotal: -
3 Inch Stainless Cab Panel W/ 11 Total Amber/Clear 2 Inch Round Lights For Peterbilt 389 131 BBC - Pair
PHOENIX DESIGN
$308.99Cab Panels W/ 11 Total Amber LED Clear Lens 2 Inch Round Lights Fits Peterbilt 389 Extended HoodShine brighter and drive safer with this 3 Inch Stainless Steel Cab Panel set, featuring 11 Amber/Clear...01-091200175- SKU:
- 01-091200175
- Location:
- Made In USA
- Light Options:
- With Lights
- Truck Class:
- Heavy Duty
- Material Options:
- Stainless Steel
- Make:
- Peterbilt
- Finish Options:
- Polished
- Length Options:
- 47 Inch
- Product Type:
- Exterior
$308.99Qty in Cart: 0Price:$308.99Subtotal: -
3 Inch Stainless Cab Panel W/ 11 Total 5/6 Amber/Clear P1 Lights For Peterbilt 389 131 BBC - Pair
PHOENIX DESIGN
$347.99Cab Panels W/ 11 Total Amber LED Clear Lens 5/6 P1 Lights Fits Peterbilt 389 Extended HoodMaximize both style and safety on your Peterbilt 389 with these 3 Inch Stainless Steel Cab Panels with 11...01-091200171- SKU:
- 01-091200171
- Location:
- Made In USA
- Light Options:
- With Lights
- Truck Class:
- Heavy Duty
- Material Options:
- Stainless Steel
- Make:
- Peterbilt
- Finish Options:
- Polished
- Length Options:
- 47 Inch
- Product Type:
- Exterior
- Color:
- Amber/Clear
- Height Options:
- 3 Inch
$347.99Qty in Cart: 0Price:$347.99Subtotal: -
King Pin Kit Replaces 8885857, 3927943, 3838390 For GMC Brigadier
AFTERMARKET
$149.99King Pin Kit W/ 1.25 X 7.88 Inch King Pin & Bi-Metal BushingsMaintain optimal steering performance with this premium King Pin Kit for GMC Brigadier. Featuring single draw key king pins, bi-metal...29-05090176- SKU:
- 29-05090176
- Position:
- Kit Full
- Length Options:
- 7 3/4 Inch
- Height Options:
- 1 Inch
- Product Type:
- Frame & Chassis
- Make:
- GMC
$149.99Qty in Cart: 0Price:$149.99Subtotal: