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Best Semi Truck Accessories to Control Summer Heat in the Cab(Post)
Keeping your Class 8 semi truck cab space cool and comfortable involves more than just blasting the A/C 24/7. In this post, we'll cover the best semi truck accessories help keep your cab cool and comf
Semi Truck Buying Guide: Questions to Ask Before Investing in a Rig(Post)Choosing to invest your hard-earned dollars into a class 8 big rig is a massive decision. And if you're buying a semi truck for the first-time, there's bound to be a tsunami of details being hurled yo
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
Semi Truck Exhaust Manifold Buyer's Guide(Post)This guide covers everything you need to know about aftermarket semi truck manifolds, alongside useful information about the various manifold brands we sell. After reading, you'll be able to accuratel
The Top Freightliner Chrome Accessories for Every Budget(Post)When it comes to customizing your Freightliner truck with aftermarket chrome, the options are virtually endless. Here are some great ideas, based on budget, for your next chrome upgrade. Chrome Helps
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
How to Customize Your Semi Truck On a Budget(Post)Let's be honest. Customizing a semi truck with aftermarket parts and accessories isn't cheap, even if you're shopping for special bargain-priced deals. It also depends on how flexible your actual "bud
Common Steering Problems on Peterbilt 379 Trucks(Post)Here are some of the most common steering problems found on older Peterbilt 379 models, how to diagnose those issues, and how to prevent them. Related Posts: How to Replace a Peterbilt Steering Shaf
Most Common Replacement Parts for Freightliner FL70(Post)Freightliner FL70/FL80 Business Class trucks see a lot of wear and tear while running job sites. The parts that risk quick replacement are those that see the most pressure and stress, like the suspens
The Best Exterior & Interior Tractor Trailer Accessories to Level Up Your Truck(Post)One of the best ways to start improving you rig's safety, comfort, and performance is by adding some aftermarket tractor trailer accessories, whether it's a set of pintle hooks for stronger towing or
Top Semi Trucks Owned in Each State (Data for All 50 States) (Post)Here's some visual data on the most commonly owned heavy duty semi truck models based upon three popular truck brands: Peterbilt, Kenworth, and Freightliner. DISCLAIMER: (as of 2025) this data is four
How to Install Rear Fenders on a Peterbilt 379(Post)The process of installing rear fenders on a semi truck, specifically a Peterbilt 379 model, will depend on the type of fender. Whether it’s a full fender or half fender, the difference comes down to:
Are BESTfit Fuel Tanks the Most Durable Budget Diesel Tank?(Post)BESTfit truck parts are crash repair replacement parts are known for their affordability and exceptional build quality. The price tag on an OEM diesel fuel tank can be a tough pill to swallow. Thankfu
How to Find the Right FL70 Parts Using Your VIN(Post)To identify the right Freightliner FL70 parts, you must use your 17-digit VIN and the factory spec decal inside your cab, rather than relying on the exterior model badge. Because FL70 and FL80 Busines
What Should Be in a Semi Truck Emergency Kit? (Free PDF Checklist for Drivers)(Post)Semi-truck breakdowns cost money and time; but they aren't inevitable. With the right emergency accessories, truck drivers can minimize costly delays, tackle minor repairs on the fly, and safely power
Top 10 Semi Truck Winter Accessories for Heavy-Duty Drivers(Post)Winter truck driving can be downright trecherous to haul payloads in, especially when you don't have the right winter-ready trucker gear to get you through difficult drives in below-freezing temperatu
Ultimate Guide: Semi Truck Fuel Tank Accessories(Post)Wondering about the best aftermarket fuel tank accessories and parts to get? Here's a quick guide on the various types of semi truck fuel tank accessories, from locking caps to fuel tank covers, and
Haul of Fame: The Murder Pete Truck(Post)They call it the Murder Pete. Blacked-out, rugged, and raw, it’s a notorious big rig known for its “murdered out” style. Supported by the custom fab shop work of Chrome Shop Mafia (CMS) and supplied w
Semi Truck Boot Brush Guide: Does it Really Keep Your Cab Clean?(Post)Boot Brushes: The Key Takeaways Benefits: Keeps cab floors clean, improves footwear grip on steps and pedals, projects a professional appearance, prevents grit from grinding down interior flooring, a
CB Radios Ultimate Guide(Post)“10-4 Roger.” Despite the rise of messaging apps, GPS devices with voice-activated messaging, and push-to-talk (PTT) apps, the classic CB radio remains among the most trusted and well-used accessorie
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Blower Motor Replaces 3674285C1 For International 7000-8000, LoneStar, ProStar
AUTOMANN USA
$105.9912V 1 Speed Vented Blower Motor With 2 Wire Harness & Flange With Wheel Fits InternationalSupport consistent HVAC operation on International 7000-8000, LoneStar, or ProStar with the Blower Motor,...07-150300006- SKU:
- 07-150300006
- Truck Class:
- Heavy Duty
- Make:
- International
- Product Type:
- Interior
$105.99Qty in Cart: 0Price:$105.99Subtotal: -
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Digital Air Filter Monitor Gauge - Red Display
TELTEK
$263.99Digital Air Filter Monitor GaugeIf you want to be notified when you need to change your air filter, 4 State Trucks has what you need with this high quality Teltek gauge. With a red digital display,...29-1502114RKW- SKU:
- 29-1502114RKW
- Color:
- Red
- Location:
- Made In USA
- Truck Class:
- Heavy Duty
- Style Options:
- Digital
- Make:
- GMC
- Make:
- Peterbilt
- Make:
- Freightliner
- Make:
- Mack
- Make:
- International
- Make:
- Volvo
- Make:
- Ford
- Make:
- Kenworth
- Make:
- Western Star
- Product Type:
- Interior
$263.99Qty in Cart: 0Price:$263.99Subtotal: -
Air Pressure Sending Unit 150 PSI
OPP - ORIGINAL PARTS PROGRAM
$179.99Electrical Pressure Gauge Sending Unit Replacement* High Quality Sending Unit* 150 PSI* 1/8 Inch NPTF* 240- 33 Ohm* Designed To Be Used With 90 Degree Sweep Gauges 240 Ohms Resistance* Dimensions: -...09-1502711- SKU:
- 09-1502711
- Truck Class:
- Heavy Duty
- Make:
- Universal Items
- Product Type:
- Air, Electrical, & Safety
- Rating:
- 150 PSI
- Degree Options:
- 90
$179.99Qty in Cart: 0Price:$179.99Subtotal: -
Cabin Air Filter For International, Kenworth & Peterbilt
AUTOMANN USA
$13.887.9 Inch x 8.925 Inch Cabin Air FilterExperience fresh driving with a quality cabin air filter! Keeping your air clean, it traps dust, pollen, and odors, ensuring you breathe pure air. Remove 98% of...29-15030002- SKU:
- 29-15030002
- Truck Class:
- Heavy Duty
- Material Options:
- Fiberglass
- Make:
- Kenworth
- Make:
- Peterbilt
- Make:
- International
- Product Type:
- Interior
- Ready To Ship:
- Yes
$13.88Qty in Cart: 0Price:$13.88Subtotal: -
BESTfit Cabin Air Filter- 9 X 13.875 X 1 Inch Replaces 68012876AA For Freightliner Sprinter Van 2500 / 3500
BESTFIT TRUCK PARTS
$31.749 X 13.875 X 1 Inch Cabin Air Filter By BESTfit Fits FreightlinerDon't let dust and debris compromise your driving comfort-choose the BESTfit 9 x 13.875 x 1 Inch Cabin Air Filter for Freightliner...03-150300005- SKU:
- 03-150300005
- Height Options:
- 9 Inch
- Length Options:
- 13 Inch
- Make:
- Freightliner
- Product Type:
- Interior
- Truck Class:
- Light Duty
$31.74Qty in Cart: 0Price:$31.74Subtotal: -
20 - 29 Inch Stainless Steel Adjustable Tube Arm, 150 Degree Bent
GRAND GENERAL
$38.3720 -29 Inch 150 Degree Bent Adjustable Tube Arm* High Quality Tube Arm* Stainless Steel* 20 Inch -29 Inch * 150 Degree Bent * Adjustable* Sold Individually* Warranty On Tube Arms Against Defects In...09-09150128- SKU:
- 09-09150128
- Truck Class:
- Heavy Duty
- Product Type:
- Exterior
- Material Options:
- Stainless Steel
- Make:
- Universal Items
$38.37Qty in Cart: 0Price:$38.37Subtotal: -
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Isspro 2 Inch Chrome Mechanical Truck Air Pressure Gauge 0-150 PSI
ISSPRO
$80.990-150 PSI Mechanical Air Pressure GaugeThis truck air pressure gauge by Isspro a mechanical gauge that features a 2-inch chrome face with a pneumatic range display from 0-150 PSI. It comes with a...09-1502506- SKU:
- 09-1502506
- Diameter Options:
- 2 Inch
- Color:
- White
- Location:
- Made In USA
- Truck Class:
- Heavy Duty
- Style Options:
- Analog
- Shape Options:
- Round
- Make:
- Universal Items
- Product Type:
- Interior
- Ready To Ship:
- Yes
$80.99Qty in Cart: 0Price:$80.99Subtotal: -
BESTfit 10.625 X 10.625 X 1 Inch Paper Cabin Air Filter Replaces BOA91559 For Freightliner
BESTFIT TRUCK PARTS
$14.56BESTfit Paper Cabin Air Filter Fits Freightliner* High Quality A/C Filter* Length: 10 5/8 Inch* Thickness: 1 Inch * Height: 10 5/8 Inch* Sold Individually* Warranty On A/C Filter Against Defects In...03-150300006- SKU:
- 03-150300006
- Truck Class:
- Heavy Duty
- Height Options:
- 10 Inch
- Length Options:
- 10 Inch
- Make:
- Freightliner
- Product Type:
- Interior
$14.56Qty in Cart: 0Price:$14.56Subtotal: -
Heavy Duty Red Digital Load Gauge W/ Chrome Bezel - 0-150 PSI
TELTEK
$359.990-150 PSI Red Digital Load Gauge With Chrome Bezel* High Quality Gauge* Back Face * Red Digital Numbers* White Lettering* Chrome Bezel* 0-150 PSI* Sold Individually* Made In The USA* Warranty On...09-150200001- SKU:
- 09-150200001
- Location:
- Made In USA
- Color:
- Red
- Truck Class:
- Heavy Duty
- Style Options:
- Digital
- Make:
- Universal Items
- Product Type:
- Interior
$359.99Qty in Cart: 0Price:$359.99Subtotal: -
Filter Door Panel Cover For Peterbilt 375, 377, 378 & 379
GRAND GENERAL
$13.33Peterbilt Filter Door Panel CoverEnhance the interior detail of your Peterbilt 375, 377, 378, or 379 with this high-quality filter door panel cover designed for Peterbilt 370 Series 1995 & later...01-15020306- SKU:
- 01-15020306
- Material Options:
- Stainless Steel
- Product Type:
- Interior
- Height Options:
- 4 1/2 Inch
- Width Options:
- 6 Inch
- Make:
- Peterbilt
$13.33Qty in Cart: 0Price:$13.33Subtotal: -
HVAC Blower Motor Replaces 3949886, H54625000900, 8546250009,1099064 For Freightliner, Volvo
AFTERMARKET
$192.99AC Blower Motor Fits Freightliner Columbia, Coronado, Classic, FLD120 & Volvo VNL Gen IMaintain a comfortable cab environment with the HVAC Blower Motor, designed for Freightliner and Volvo trucks...09-150300002- SKU:
- 09-150300002
- Truck Class:
- Heavy Duty
- Make:
- Volvo
- Make:
- Freightliner
- Product Type:
- Interior
$192.99Qty in Cart: 0Price:$192.99Subtotal: -
BESTfit 12V Vented 1 Speed Strap Mount Blower Motor Replaces HB1050, 203080BSM For Kenworth
BESTFIT TRUCK PARTS
$72.99BESTfit Blower Motor With Double 5/16 Inch Diameter Shaft Fits KenworthKeep your Kenworth truck's interior comfortable with the BESTfit 12V Vented 1 Speed Strap Mount Blower Motor. Engineered with...02-150300006- SKU:
- 02-150300006
- Truck Class:
- Heavy Duty
- Diameter Options:
- 3 Inch
- Length Options:
- 4 Inch
- Make:
- Kenworth
- Product Type:
- Interior
- Ready To Ship:
- Yes
$72.99Qty in Cart: 0Price:$72.99Subtotal: -
FREE SHIPPING
Flange Mount Blower Motor Kit Replaces OE T77421A2C, VCC35000003, VCCT1000904A For Freightliner 108SD, 114SD, 122SD, Cascadia, M2 Business Class
AUTOMANN USA
$248.99Variable Speed Blower Motor Assembly Kit Replaces T77421A2CKeep your Freightliner cab comfortable year-round with the Flange Mount Blower Motor Kit. Designed for 108SD, 114SD, 122SD, Cascadia, and M2...03-150300003- SKU:
- 03-150300003
- Truck Class:
- Heavy Duty
- Make:
- Freightliner
- Product Type:
- Interior
$248.99Qty in Cart: 0Price:$248.99Subtotal: -
FREE SHIPPING OVER $249
Isspro 2 1/16 Inch Mechanical Dual Air Pressure Gauge 150 PSI
ISSPRO
$140.99Mechanical Dual Air Pressure Gauge With Chrome BezelWe offer this quality aftermarket Isspro Mechanical Dual Air Pressure Gauge for your big rig. With a 2 1/16 inch chrome face, the gauge ranges from...29-1502511- SKU:
- 29-1502511
- Color:
- White
- Truck Class:
- Heavy Duty
- Style Options:
- Analog
- Shape Options:
- Round
- Make:
- Universal Items
- Product Type:
- Interior
- Ready To Ship:
- Yes
$140.99Qty in Cart: 0Price:$140.99Subtotal: -
100 GPM Return Line Filter Assembly - 150 PSI Working Pressure
BUYERS PRODUCTS
$199.99100 GPM Return Line Assembly With 10 Micron FilterThe 100 GPM Return Line Filter removes contaminants as small as 10 microns, protecting your hydraulic reservoir. Built for high-flow applications, it...09-02500029- SKU:
- 09-02500029
- Truck Class:
- Universal
- Rating:
- 150 PSI
- Make:
- Universal Items
- Material Options:
- Steel
- Product Type:
- Cargo Control
$199.99Qty in Cart: 0Price:$199.99Subtotal: -
Isspro 2-1/16 Inch Electric Air Pressure Gauge 0-150 PSI W/ White Pointer, Black Bezel
ISSPRO
$54.992-1/16 Inch Electric Air Pressure Gauge 0-150 PSI* High Quality Electric Air Pressure Gauge* 2-1/16 Inch* 0-150 PSI, * Uses Sender Type PD* Black Bezel, Black Face, White Pointer* Sold Individually*...09-150100340- SKU:
- 09-150100340
- Diameter Options:
- 2 Inch
- Rating:
- 150 PSI
- Location:
- Made In USA
- Truck Class:
- Heavy Duty
- Color:
- White
- Style Options:
- Analog
- Shape Options:
- Round
- Make:
- Universal Items
- Product Type:
- Interior
$54.99Qty in Cart: 0Price:$54.99Subtotal: -
FREE SHIPPING OVER $249
Blower Motor Replaces 3542611C2 For International 4000, 7000, 8000, LoneStar
AUTOMANN USA
$106.9912V 1 Speed Vented Flange Mount Blower Motor With 2 Wire HarnessKeep your International 4000, 7000, 8000, or LoneStar truck comfortable with this Blower Motor, designed to replace OEM 3542611C2. This...07-150300005- SKU:
- 07-150300005
- Truck Class:
- Heavy Duty
- Make:
- International
- Product Type:
- Interior
$106.99Qty in Cart: 0Price:$106.99Subtotal: -
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: -
Isspro 2-1/16 Inch Electric Air Pressure Gauge 0-150 PSI W/ White Pointer, Chrome Bezel
ISSPRO
$61.992-1/16 Inch Electric Air Pressure Gauge 0-150 PSI* High Quality Electric Air Pressure Gauge* 2-1/16 Inch* 0-150 PSI, Sender Type PD* Chrome Bezel, Black Face, White Pointer* Sold Individually* Made...09-150100363- SKU:
- 09-150100363
- Diameter Options:
- 2 Inch
- Location:
- Made In USA
- Truck Class:
- Heavy Duty
- Color:
- White
- Style Options:
- Analog
- Shape Options:
- Round
- Make:
- Universal Items
- Product Type:
- Interior
$61.99Qty in Cart: 0Price:$61.99Subtotal: -
BESTfit 8.875 X 7.875 X 1.1875 Inch Paper Cabin Air Filter Replaces X1987001, 4070948C1 For Peterbilt 567/579
BESTFIT TRUCK PARTS
$18.72BESTfit Paper Cabin Air Filter Fits Peterbilt & Kenworth HVAC* High Quality In Cab Filter* Length: 7 7/8* Height: 8 7/8* Thickness: 1 3/16* Additional Notes: Filter Without Frame* Sold Individually*...01-150300009- SKU:
- 01-150300009
- Truck Class:
- Heavy Duty
- Make:
- Peterbilt
- Product Type:
- Interior
- Ready To Ship:
- Yes
$18.72Qty in Cart: 0Price:$18.72Subtotal: