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New Products

Check out Semi Truck New Products at 4 State Trucks! Do you have fitment questions? Our Parts Pros are ready to help! Time for an upgrade - give us a call for top-notch customer service and shop now!
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  • Quantity
  • Price
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  • FREE SHIPPING OVER $249
    R12 Type Pilot Relay Valve Replaces 170.065476

    R12 Type Pilot Relay Valve Replaces 170.065476

    AFTERMARKET

    $67.99
    R12 Type Pilot Relay Valve W/ 1 - 1/4 NPT Control Port, 2 - 1/2 Inch NPT Supply Ports & 4 - 3/8 Inch NPT Delivery Ports* High Quality Relay Valve* R12 Type Pilot Relay Valve* Ports:  - (1) 1/4 Inch...
    09-05170483
    SKU:
    09-05170483
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    $67.99
    Qty in Cart: 0
    Price:
    $67.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Air Dryer Cartridge 5.35 X 9.68 Inch W/ Cartridge & O-Ring Replaces 170.950069, 432421922 For Wabco SS1800 Type Air Dryers

    Air Dryer Cartridge 5.35 X 9.68 Inch W/ Cartridge & O-Ring Replaces 170.950069, 432421922 For Wabco SS1800 Type Air Dryers

    AFTERMARKET

    $104.99
    Air Dryer Cartridge M39 1.5 Thread Fits Wabco SS1800 Type Air Dryers Replaces 170.950069, 432421922* High Quality Air Dryer Cartridge* Replacement Coalescing Cartridge For Wabco SS1800 Type Air...
    09-05170474
    SKU:
    09-05170474
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    $104.99
    Qty in Cart: 0
    Price:
    $104.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Air Dryer Cartridge 10.5 X 6.5 Inch W/ Cartridge & O-Ring Replaces 170.T224, R955T224N For Turbo 2000 Type Air Dryers

    Air Dryer Cartridge 10.5 X 6.5 Inch W/ Cartridge & O-Ring Replaces 170.T224, R955T224N For Turbo 2000 Type Air Dryers

    AFTERMARKET

    $57.99
    Air Dryer Cartridge 1.5 Inch 16 Thread Fits Turbo 2000 Type Air Dryers Replaces 170.T224, R955T224N* High Quality Air Dryer Cartridge* Replacement Desiccant Cartridge For Turbo 2000 Type Air Dryers*...
    09-05170473
    SKU:
    09-05170473
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    $57.99
    Qty in Cart: 0
    Price:
    $57.99
    Subtotal:
  • FREE SHIPPING
    Air Dryer Cartridge W/ 1/4 Inch NPT Control Port & 1/2 Inch NPT Inlet & Delivery Ports

    Air Dryer Cartridge W/ 1/4 Inch NPT Control Port & 1/2 Inch NPT Inlet & Delivery Ports

    AFTERMARKET

    $256.99
    Air Dryer Cartridge W/ Heater Repair Kit & Purge Valve Replaces 170.955300, R955300* High Quality Air Dryer Cartridge* Wabco SS1200P Type Compatibility* Complete SS1200P Non-Regeneration Type Air...
    09-05170468
    SKU:
    09-05170468
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    $256.99
    Qty in Cart: 0
    Price:
    $256.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Governor W/ Tire Inflator Valve Replaces 002-431-00-06, 002-431-49-06

    Governor W/ Tire Inflator Valve Replaces 002-431-00-06, 002-431-49-06

    AFTERMARKET

    $68.99
    Governor W/ Operating Temps -40 To 185 Degree Fahrenheit* High Quality Governor* Operating Temps From -40 To 185 Degrees Farenheit* Tire Inflator Valve* Sold Individually* Warranty On Governors...
    09-05170479
    SKU:
    09-05170479
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    $68.99
    Qty in Cart: 0
    Price:
    $68.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Air Dryer Cartridge PG AD-9 Cartridge W/ Cartridge & O-Ring

    Air Dryer Cartridge PG AD-9 Cartridge W/ Cartridge & O-Ring

    AFTERMARKET

    $61.99
    Air Dryer Cartridge W/ 150 Lb Per Square Inch Max Operation Pressure* High Quality Air Dryer Cartridge* PG AD-9 Cartridge Type* Replacement For Bendix AD-8* Desiccant-Coalescing* 150 Lb Per Square...
    09-05170470
    SKU:
    09-05170470
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    $61.99
    Qty in Cart: 0
    Price:
    $61.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Purge Valve Kit W/ Soft Seat Piston Assembly Replaces 034087, 107798 For AD9 Type Air Dryer

    Purge Valve Kit W/ Soft Seat Piston Assembly Replaces 034087, 107798 For AD9 Type Air Dryer

    AFTERMARKET

    $19.99
    Purge Valve Kit 1/8 Inch NPT Thread Replaces 034087, 107798* High Quality Purge Valve Kit* Maintenance Kit for Purge Valve Assembly For AD9 Type Air Dryer (Not Included)* Hard Seat* 1/8 Inch NPT...
    09-05170469
    SKU:
    09-05170469
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    $19.99
    Qty in Cart: 0
    Price:
    $19.99
    Subtotal:
  • FREE SHIPPING
    Air Dryer Cartridge Primary/Secondary Port 1/4 Inch NPT Replaces BWK049086, BXK049086

    Air Dryer Cartridge Primary/Secondary Port 1/4 Inch NPT Replaces BWK049086, BXK049086

    AFTERMARKET

    $692.99
    Air Dryer Cartridge W/ Opening Pressures 103 - 112 PSI* High Quality Air Dryer Cartridge* Complete ADIS Type Air Dryer Assembly 12V-90W* Primary Port 1/4in NPT, Opening Pressure 103PSI* Secondary...
    09-05170464
    SKU:
    09-05170464
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    $692.99
    Qty in Cart: 0
    Price:
    $692.99
    Subtotal:
  • FREE SHIPPING
    Air Dryer Cartridge W/ 130 Lb Per Square Inch Max Operating Pressure Replaces 432421039R, 4324210540 For Wabco SS1800P Type Air Dryers

    Air Dryer Cartridge W/ 130 Lb Per Square Inch Max Operating Pressure Replaces 432421039R, 4324210540 For Wabco SS1800P Type Air Dryers

    AFTERMARKET

    $347.99
    Air Dryer Cartridge M39 1.5 Thread W/ Control Port 1/4 Inch - 18 NPTF & Delivery Port 1/2 Inch 14 NPTF Fits Wabco SS1800P Type Air Dryers* High Quality Air Dryer Cartridge* Replacement Coalescing...
    09-05170475
    SKU:
    09-05170475
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    $347.99
    Qty in Cart: 0
    Price:
    $347.99
    Subtotal:
  • FREE SHIPPING
    Air Dryer Cartridge World American AD-IS Standard Design Replaces 170.800383, 3625-823-C

    Air Dryer Cartridge World American AD-IS Standard Design Replaces 170.800383, 3625-823-C

    AFTERMARKET

    $430.99
    Air Dryer Cartridge 1/4 Inch Accessory & Suspension Ports W/O Service Port* High Quality Air Dryer Cartridge* World American AD-IS Standard Cartridge Design* 12V DC, 90 W* 1/4 Inch Accessory And...
    09-05170466
    SKU:
    09-05170466
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    $430.99
    Qty in Cart: 0
    Price:
    $430.99
    Subtotal:
  • FREE SHIPPING
    Air Dryer Cartridge Complete SS1200UP Type Coalescing Replaces 20935355, 20991972

    Air Dryer Cartridge Complete SS1200UP Type Coalescing Replaces 20935355, 20991972

    AFTERMARKET

    $312.99
    Air Dryer Cartridge 12V DC & 100W* High Quality Air Dryer Cartridge* Complete SS1200UP Type Coalescing Air Dryer Assembly* 12V DC, 100W* Uses External Purge Tank, And Uses The Discharge Line For...
    09-05170465
    SKU:
    09-05170465
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    $312.99
    Qty in Cart: 0
    Price:
    $312.99
    Subtotal:
  • Stainless Steel Angled Bottom Mud Flap Weight 24 Inch Bolted

    Stainless Steel Angled Bottom Mud Flap Weight 24 Inch Bolted

    TRUX ACCESSORIES

    $52.99
    Bolted Angled Bottom Mud Flap Weight 24 Inch Stainless SteelAdd a polished, custom look to your truck with theStainless Steel Angled Bottom Mud Flap Weight 24 Inch Bolted. Crafted from durable...
    09-0507384
    SKU:
    09-0507384
    Product Type:
    Mud Flaps
    Availability:
    Ready To Ship
    Make:
    Universal Items
    $52.99
    Qty in Cart: 0
    Price:
    $52.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Air Dryer Cartridge 7.388 X 7.28 Inch Replaces 170.65624K, 065624 For ADIP Type Air Dryer

    Air Dryer Cartridge 7.388 X 7.28 Inch Replaces 170.65624K, 065624 For ADIP Type Air Dryer

    AFTERMARKET

    $160.99
    Air Dryer Cartridge W/ O-Ring & Grease* High Quality Air Dryer Cartridge* Replacement Desiccant Cartridge For ADIP Type Air Dryer* 150 Lb Per Square Inch Max Operation Pressure* Includes:  -...
    09-05170471
    SKU:
    09-05170471
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    $160.99
    Qty in Cart: 0
    Price:
    $160.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Air Dryer Cartridge 6.45 X 5.35 Inch W/ Cartridge & O-Ring

    Air Dryer Cartridge 6.45 X 5.35 Inch W/ Cartridge & O-Ring

    AFTERMARKET

    $41.99
    6.45 X 5.35 Inch Air Dryer Cartridge W/ Cartridge & O-Ring* High Quality Air Dryer Cartridge* SG39 - 1.5 Threads* Desiccant Coalescing* 145 Lbs Max Operating Pressure Per Square Inch* Includes:  -...
    09-05170462
    SKU:
    09-05170462
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    $41.99
    Qty in Cart: 0
    Price:
    $41.99
    Subtotal:
  • Stainless Steel Angled Welded 24 Inch Bottom Mud Flap Weight

    Stainless Steel Angled Welded 24 Inch Bottom Mud Flap Weight

    TRUX ACCESSORIES

    $103.99
    24 Inch Angled Stainless Steel Welded Bottom Mud Flap WeightGive your truck's mud flaps a custom, polished appearance with theStainless Steel Angled Welded 24 Inch Bottom Mud Flap Weights. Designed...
    09-05070189
    SKU:
    09-05070189
    Product Type:
    Mud Flaps
    Availability:
    Ready To Ship
    Make:
    Universal Items
    $103.99
    Qty in Cart: 0
    Price:
    $103.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Alcohol Evaporator 9.906 Inch W/ 2.5 C To C Bolt Hole Distance

    Alcohol Evaporator 9.906 Inch W/ 2.5 C To C Bolt Hole Distance

    AFTERMARKET

    $88.99
    Alcohol Evaporator W/ 1/2 Inch NPT Ports Replaces 3507884C, 3507884C91* High Quality Alcohol Evaporator* Alcohol Evaporator Automatic Vaporizing Device For Keeping Air Lines Free of Ice* (2) 1/2 Inch...
    09-05170467
    SKU:
    09-05170467
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    $88.99
    Qty in Cart: 0
    Price:
    $88.99
    Subtotal:
  • Chrome Steel Mud Flap Hangers 33 X 5.5 Inch W/ 2.5 Inch Bolt Spacing

    Chrome Steel Mud Flap Hangers 33 X 5.5 Inch W/ 2.5 Inch Bolt Spacing

    TRUX ACCESSORIES

    $264.99
    Mud Flap Hangers 33 X 5.5 Inch Chrome Steel W/ 2.5 Inch Bolt SpacingGive your truck a quality rear end upgrade with33 Inch Chrome Steel Mud Flap Hangers. Built from stainless steel, these high...
    09-05070191
    SKU:
    09-05070191
    Product Type:
    Mud Flaps
    Make:
    Universal Items
    $264.99
    Qty in Cart: 0
    Price:
    $264.99
    Subtotal:
  • Smooth Aluminum Underbody Toolbox W/ Single Swing Door 60 X 24 X 24 Inch

    Smooth Aluminum Underbody Toolbox W/ Single Swing Door 60 X 24 X 24 Inch

    TPHD

    $919.99
    60 X 24 X 24 Inch Smooth Aluminum Underbody Toolbox W/ Single Swing Door* High Quality Underbody Toolbox* Made Of Aluminum* Smooth Finish* Lightweight Yet Durable Construction* Includes:  - Single...
    09-0201157
    SKU:
    09-0201157
    Product Type:
    Toolboxes
    Availability:
    Ready To Ship
    Make:
    Universal Items
    $919.99
    Qty in Cart: 0
    Price:
    $919.99
    Subtotal:
  • FREE SHIPPING
    C Series Direct Mount Hydraulic Pump W/ Left Rotation & 13 Spline

    C Series Direct Mount Hydraulic Pump W/ Left Rotation & 13 Spline

    AFTERMARKET

    $723.99
    Direct Mount C Series Hydraulic Pump 49 GPM & 3000 PSI* High Quality Hydraulic Pump* Left Hand Rotation* Gear Pump With Air Shift* 49 GPM At 1800 RPM* 13 Input Spline* 3000 Max RPM* 2500 Max Working...
    09-02500272
    SKU:
    09-02500272
    Product Type:
    Cargo Control
    Make:
    Universal Items
    $723.99
    Qty in Cart: 0
    Price:
    $723.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Purge Valve Kit W/ WABCO Type Design Replaces 0587-950014P, 170.950014

    Purge Valve Kit W/ WABCO Type Design Replaces 0587-950014P, 170.950014

    AFTERMARKET

    $9.99
    Purge Valve Kit W/ O-Rings, Washer, Shims & Spring* High Quality Purge Valve Kit* WABCO Type Design* Compatible With SS1200/1800, SS1200 Plus Type Air Dryers (Not Included)* Includes:  - O-Rings  -...
    09-05170463
    SKU:
    09-05170463
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    $9.99
    Qty in Cart: 0
    Price:
    $9.99
    Subtotal:
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Adding your products to cart

The Semi-Truck New Products category offers a variety of accessories and components, to enhance your truck's functionality, appearance, and comfort. Key products include: - Custom sleeper cab panels and trim for Peterbilt 389 and 379 - stainless steel and aluminum exterior accessories like bumper guards and fuel tank covers - LED lighting upgrades for better visibility - Comfort items like air ride seats and heated seat cushions - Performance upgrades such as exhaust systems and suspension components

Frequently Asked Questions About Semi-Truck New Products

What truck models and years are compatible with your new bumpers and accessories?

Our new products are designed for popular models including Peterbilt 379, 389, and 359; Kenworth W900, T800, and T600; Freightliner Classic and Coronado; and Western Star 4900. Most items fit trucks from 1990 to current model years, but exact compatibility varies by product. Each product page includes a detailed fitment guide with specific year ranges and model numbers. If you're unsure about compatibility, call our tech support at 1-888-875-7787 with your truck's OEM for verification.

What materials are used in your bumpers, and how thick is the steel?

Our aftermarket bumpers are typically made from either 16-gauge (.0598") or 14-gauge (.0747") cold-rolled steel, depending on the specific model. Premium options feature 304 stainless steel with 16-gauge construction. All bumpers include reinforced mounting brackets and use automotive-grade primers and finishes. Chrome bumpers feature triple-plated nickel-chrome over copper base for maximum durability and shine retention.

Do I need special tools or professional installation for these products?

Most bumper installations require basic hand tools including socket sets (typically 3/4" and 7/8"), wrenches, and a drill with metal bits for some applications. Installation typically takes 2-4 hours for experienced mechanics. While many owner-operators successfully install these themselves, some products like air ride suspensions or complex light bars may benefit from professional installation. Each product includes detailed instructions, and we offer phone support for DIY installers.

What finish options are available, and how do they hold up to road conditions?

We offer chrome-plated, polished stainless steel, painted, and powder-coated finishes. Chrome bumpers feature triple-plating for corrosion resistance but require regular polishing in salt-belt states. Stainless steel options need less maintenance but show fingerprints more easily. Powder-coated finishes come in black, white, and custom colors, offering excellent chip resistance. All finishes are tested for UV resistance and road chemical exposure.

What's your return policy if a product doesn't fit or meet expectations?

We offer a 180-day return policy on most new products in original packaging with no installation marks. Custom-ordered or modified items are non-returnable. Shipping costs for returns are the customer's responsibility unless we shipped the wrong item. Before ordering, we recommend calling to confirm fitment to avoid return shipping costs. Defective items are covered under manufacturer warranties ranging from 90 days to 3 years depending on the product.


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