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Freightliner M2 Business Class Parts

The Freightliner M2 Business Class semi-truck is a solid medium-duty truck that offers the versatility and reliability you'd expect from Freightliner, but we can make you stand out even more by customizing your semi truck with quality parts and chrome accessories from 4 State Trucks. When you drive an M2 Business Class, you'll enjoy top-notch features like maneuverability, roomy interior, and great driver visibility that make it fun and easy to keep your truck on the road. Whether you need bumpers, exhaust, fuel tanks, or any other aftermarket or custom parts for your M2, 4 State Trucks has got you covered - shop our selection of Freightliner parts today.
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  • 1.5 Inch Chrome Push On Lug Nut Cover- 10 Pack

    1.5 Inch Chrome Push On Lug Nut Cover- 10 Pack

    GRAND GENERAL

    $9.70
    1.5 Inch Chrome Lug Nut Cover- Push OnProtect your truck's lug nuts while adding a polished, chrome finish with the 1.5 Inch Chrome Push-On Lug Nut Covers. Made from chrome-plated steel, these covers...
    09-20060016
    SKU:
    09-20060016
    Material Options:
    Steel
    Product Type:
    Wheels
    Height Options:
    1 1/2 Inch
    Diameter Options:
    1 1/2 Inch
    Finish Options:
    Chrome-Plated
    Style Options:
    Push On
    Make:
    Universal Items
    $9.70
    Qty in Cart: 0
    Price:
    $9.70
    Subtotal:
  • FREE SHIPPING
    RealWheels Stainless Steel 22.5/ 24.5 Inch Unitized Front Hub Cover Kit

    RealWheels Stainless Steel 22.5/ 24.5 Inch Unitized Front Hub Cover Kit

    REALWHEELS

    $473.99
    22.5/ 24.5 Inch Unitized Front Hub Cover Kit By RealWheelsProtect your truck's front hubs while adding a premium look with the RealWheels Stainless Steel 22.5 / 24.5 Inch Unitized Front Hub Cover Kit...
    09-20030116
    SKU:
    09-20030116
    Material Options:
    Stainless Steel
    Product Type:
    Wheels
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $473.99
    Qty in Cart: 0
    Price:
    $473.99
    Subtotal:
  • Stealth Black Rear Domed Baby Moon Tandem Drive Axle Cover- Real Logo Floater

    Stealth Black Rear Domed Baby Moon Tandem Drive Axle Cover- Real Logo Floater

    REALWHEELS

    $360.99
    Black Rear Domed Baby Moon Tandem Drive Axle Cover- Real Logo Floater* High Quality Hub Cover Kit* Baby Moon Style* For Tandem Rear Axle (4 Pieces)* Fits 5/8 Inch Axel Studs* Stealth Black Powder...
    09-200500095
    SKU:
    09-200500095
    Material Options:
    Stainless Steel
    Finish Options:
    Black Powder Coat
    Diameter Options:
    5/8 Inch
    Product Type:
    Wheels
    Make:
    Universal Items
    $360.99
    Qty in Cart: 0
    Price:
    $360.99
    Subtotal:
  • RealWheels 22.5 Inch Stainless Steel Rear Simulator Kit For 22.5 X 8 Inch Wheels

    RealWheels 22.5 Inch Stainless Steel Rear Simulator Kit For 22.5 X 8 Inch Wheels

    REALWHEELS

    $854.99
    22.5 Inch Rear Simulator Kit By RealWheels Fits 22.5 X 8 Inch WheelsGive your truck a polished, show-ready look with the RealWheels 22.5 Inch Stainless Steel Rear Simulator Kit. Made from...
    09-20030018
    SKU:
    09-20030018
    Truck Class:
    Heavy Duty
    Product Type:
    Wheels
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    $854.99
    Qty in Cart: 0
    Price:
    $854.99
    Subtotal:
  • RealWheels 6.5 X 8 Inch Stainless Steel Tag Axle Hubdometer

    RealWheels 6.5 X 8 Inch Stainless Steel Tag Axle Hubdometer

    REALWHEELS

    $116.99
    6.5 X 8 Inch Tag Axle Hubdometer By RealWheelsEnsure long-lasting accuracy and reliability with the RealWheels 6.5 x 8 Inch Stainless Steel Tag Axle Hubdometer, designed for heavy-duty applications...
    09-20030113
    SKU:
    09-20030113
    Product Type:
    Wheels
    Diameter Options:
    8 Inch
    Material Options:
    Stainless Steel
    Finish Options:
    Mirror
    Make:
    Universal Items
    $116.99
    Qty in Cart: 0
    Price:
    $116.99
    Subtotal:
  • Chrome Window Crank Handle W/ Red Jewel

    Chrome Window Crank Handle W/ Red Jewel

    GRAND GENERAL

    $12.11
    3-3/4 X 1-5/16 Inch Window Crank Handle W/ Red JewelAdd durability and style to your truck windows with the Chrome Window Crank Handle w/ Red Jewel. Crafted from chrome die-cast metal, this...
    09-1530088
    SKU:
    09-1530088
    Color:
    Red
    Product Type:
    Interior
    Material Options:
    Plastic/Poly
    Diameter Options:
    1 5/16 Inch
    Length Options:
    3 3/4 Inch
    Finish Options:
    Chrome-Plated
    Make:
    Universal Items
    $12.11
    Qty in Cart: 0
    Price:
    $12.11
    Subtotal:
  • 2.5 X 1.5 X 1 Inch Stainless Steel Z Mounting Bracket- 3/8 Inch Thick

    2.5 X 1.5 X 1 Inch Stainless Steel Z Mounting Bracket- 3/8 Inch Thick

    GRAND GENERAL

    $11.74
    2.5 X 1.5 X 1 Inch Z Mounting Bracket- 3/8 Inch ThickSecurely mount your equipment with the 2.5 x 1.5 x 1 Inch Stainless Steel Z Mounting Bracket, engineered for high strength and professional...
    09-161000054
    SKU:
    09-161000054
    Height Options:
    1 Inch
    Product Type:
    Lighting
    Width Options:
    1 1/2 Inch
    Material Options:
    Stainless Steel
    Length Options:
    2 1/2 Inch
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $11.74
    Qty in Cart: 0
    Price:
    $11.74
    Subtotal:
  • 1004 Incandescent Blue Light Bulb

    1004 Incandescent Blue Light Bulb

    GRAND GENERAL

    $2.69
    1004 Incandescent Light Bulb- BlueIlluminate your truck with the reliable and stylish 1004 Incandescent Blue Light Bulb, a miniature high-quality bulb engineered for consistent performance. Featuring...
    09-160102036
    SKU:
    09-160102036
    Style Options:
    Incandescent
    Product Type:
    Lighting
    Color:
    Blue
    Make:
    Universal Items
    $2.69
    Qty in Cart: 0
    Price:
    $2.69
    Subtotal:
  • Stealth Black 9/10 Speed Shifter Adaptor

    Stealth Black 9/10 Speed Shifter Adaptor

    REALWHEELS

    $148.99
    9/10 Speed Shifter Adaptor- BlackOptimize your truck's gear-shifting experience with the Stealth Black 9/10 Speed Shifter Adaptor, built for precision, durability, and professional-grade styling...
    09-151300073
    SKU:
    09-151300073
    Product Type:
    Interior
    Material Options:
    Plastic/Poly
    Color:
    Black
    Make:
    Universal Items
    $148.99
    Qty in Cart: 0
    Price:
    $148.99
    Subtotal:
  • BESTfit 6-5 X 84 Inch Chrome Miter Cut Exhaust Stack

    BESTfit 6-5 X 84 Inch Chrome Miter Cut Exhaust Stack

    BESTFIT TRUCK PARTS

    $639.99
    6-5 X 84 Inch Miter Cut Exhaust Stack By BESTfitGive your truck a bold and polished look with the BESTfit 6-5 x 84 Inch Chrome Miter Cut Exhaust Stack. Crafted from premium chrome-plated steel, this...
    09-086584112
    SKU:
    09-086584112
    Finish Options:
    Chrome-Plated
    Height Options:
    84 Inch
    Product Type:
    Exhaust
    Style Options:
    Angled
    Diameter Options:
    6 To 5 Inch
    Material Options:
    Steel
    Make:
    Universal Items
    $639.99
    Qty in Cart: 0
    Price:
    $639.99
    Subtotal:
  • BESTfit Aluminized Steel Exhaust Reducer 7 ID To 4 ID X 8 Inch

    BESTfit Aluminized Steel Exhaust Reducer 7 ID To 4 ID X 8 Inch

    BESTFIT TRUCK PARTS

    $100.99
    7 ID To 4 ID X 8 Inch Exhaust Reducer By BESTfitMaintain optimal exhaust efficiency with the BESTfit Aluminized Steel Exhaust Reducer 7 ID to 4 ID x 8 Inch. Constructed from premium aluminized steel,...
    09-080100700
    SKU:
    09-080100700
    Material Options:
    Aluminized Steel
    Product Type:
    Exhaust
    Diameter Options:
    7 Inch
    Make:
    Universal Items
    $100.99
    Qty in Cart: 0
    Price:
    $100.99
    Subtotal:
  • BESTfit 7-5 X 96 Inch Chrome Curve Turn Exhaust Stack

    BESTfit 7-5 X 96 Inch Chrome Curve Turn Exhaust Stack

    BESTFIT TRUCK PARTS

    $958.99
    7-5 X 96 Inch Curve Turn Exhaust Stack By BESTfitTransform your rig with the BESTfit 7-5 x 96 Inch Chrome Curve Turn Exhaust Stack. Constructed from chrome-plated steel, this high-quality exhaust...
    09-087596172
    SKU:
    09-087596172
    Material Options:
    Steel
    Finish Options:
    Chrome-Plated
    Style Options:
    Curve Turn
    Diameter Options:
    7 To 5 Inch
    Product Type:
    Exhaust
    Make:
    Universal Items
    $958.99
    Qty in Cart: 0
    Price:
    $958.99
    Subtotal:
  • BESTfit Aluminized Steel Exhaust Reducer 5 OD To 3.5 OD X 8 Inch

    BESTfit Aluminized Steel Exhaust Reducer 5 OD To 3.5 OD X 8 Inch

    BESTFIT TRUCK PARTS

    $40.99
    5 OD To 3.5 OD X 8 Inch Exhaust Reducer By BESTfitKeep your truck's exhaust operating at peak efficiency with the BESTfit Aluminized Steel Exhaust Reducer 5 OD to 3.5 OD x 8 Inch. Made from...
    09-08040020
    SKU:
    09-08040020
    Material Options:
    Aluminized Steel
    Product Type:
    Exhaust
    Make:
    Universal Items
    $40.99
    Qty in Cart: 0
    Price:
    $40.99
    Subtotal:
  • BESTfit 5 X 36 Inch Galvanized Steel Flex Hose

    BESTfit 5 X 36 Inch Galvanized Steel Flex Hose

    BESTFIT TRUCK PARTS

    $44.99
    5 X 36 Inch Flex Hose By BESTfitEnsure reliable airflow and exhaust management with the BESTfit 5 x 36 Inch Galvanized Steel Flex Hose, designed for durability and flexibility. Made from galvanized...
    09-08040019
    SKU:
    09-08040019
    Length Options:
    36 Inch
    Product Type:
    Exhaust
    Finish Options:
    Galvanized
    Diameter Options:
    5 Inch
    Material Options:
    Steel
    Make:
    Universal Items
    $44.99
    Qty in Cart: 0
    Price:
    $44.99
    Subtotal:
  • FREE SHIPPING
    BESTfit 6 X 36 Inch Chrome Curve Turn Exhaust Stack

    BESTfit 6 X 36 Inch Chrome Curve Turn Exhaust Stack

    BESTFIT TRUCK PARTS

    $340.80
    6 X 36 Inch Curve Turn Exhaust Stack By BESTfitAdd both style and reliability to your truck with the BESTfit 6 x 36 Inch Chrome Curve Turn Exhaust Stack. Made from premium chrome-plated steel, this...
    09-086036173
    SKU:
    09-086036173
    Diameter Options:
    6 Inch
    Finish Options:
    Chrome-Plated
    Product Type:
    Exhaust
    Material Options:
    Steel
    Height Options:
    36 Inch
    Style Options:
    Curve Turn
    Make:
    Universal Items
    $340.80
    Qty in Cart: 0
    Price:
    $340.80
    Subtotal:
  • BESTfit 8 Inch Diameter Muffler With 5 ID / 5 ID X 61 Inch OAL For Freightliner

    BESTfit 8 Inch Diameter Muffler With 5 ID / 5 ID X 61 Inch OAL For Freightliner

    BESTFIT TRUCK PARTS

    $647.99
    8 Inch Diameter Aluminized Steel Muffler With 5 ID / 5 ID X 61 Inch OAL By BESTfitKeep your Freightliner operating at peak performance with the BESTfit 8 Inch Diameter Muffler With 5 ID / 5 ID X 61...
    03-08020001
    SKU:
    03-08020001
    Height Options:
    55 Inch
    Diameter Options:
    5 Inch
    Width Options:
    8 Inch
    Product Type:
    Exhaust
    Make:
    Freightliner
    $647.99
    Qty in Cart: 0
    Price:
    $647.99
    Subtotal:
  • FREE SHIPPING OVER $249
    12-10 Gauge Yellow Heat Shrink Butt Connector - Single

    12-10 Gauge Yellow Heat Shrink Butt Connector - Single

    SPECTRO WIRE

    $1.01
    Yellow Heat Shrink Butt ConnectorDependable and easy to use, this yellow butt 12-10G connector provides a watertight cover to protect an electrical wire connection. It is made of polyolefin heat...
    09-161302101
    SKU:
    09-161302101
    Truck Class:
    Heavy Duty
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $1.01
    Qty in Cart: 0
    Price:
    $1.01
    Subtotal:
  • On Sale
    Limited Quantity Available
    FREE SHIPPING OVER $249
    12-10 Gauge Yellow Heat Shrink Butt Connector - Pack Of 5

    12-10 Gauge Yellow Heat Shrink Butt Connector - Pack Of 5

    TRUX ACCESSORIES

    Now: $0.85
    Was: $11.21
    Pack Of 5 Yellow Heat Shrink Butt ConnectorDependable and easy to use, these yellow butt 12-10G connectors provide a watertight cover to protect electrical wire connections. They are made of...
    09-161302004
    SKU:
    09-161302004
    Product Type:
    Air, Electrical, & Safety
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Ready To Ship:
    Yes
    Now: $0.85
    Was: $11.21
    Qty in Cart: 0
    Price:
    Now: $0.85
    Was: $11.21
    Subtotal:
  • FREE SHIPPING OVER $249
    1 Inch Black Plastic Wire Loom 50 Feet

    1 Inch Black Plastic Wire Loom 50 Feet

    PARTS DISTRIBUTING

    $50.99
    Black Plastic LoomThis black plastic wire loom is sold as a 50-foot roll and is 1 inch in diameter. It is a great way to protect and organize your wire, cable, and hose applications. The wire loom is...
    09-16040137
    SKU:
    09-16040137
    Product Type:
    Air, Electrical, & Safety
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    $50.99
    Qty in Cart: 0
    Price:
    $50.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Black Plastic Wire Split Loom - 3/8 Inch X 50 Foot

    Black Plastic Wire Split Loom - 3/8 Inch X 50 Foot

    TRAMEC SLOAN

    $36.47
    Black Plastic LoomThis black plastic wire loom, also known as a wire cover or wire harness is 3/8 inch in diameter and is 50 feet long. It is a great way to protect and organize your wire, cable, and...
    09-16040133
    SKU:
    09-16040133
    Truck Class:
    Heavy Duty
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $36.47
    Qty in Cart: 0
    Price:
    $36.47
    Subtotal:
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Adding your products to cart

When your Freightliner M2 Business Class is your daily workhorse, you need parts that can keep up. Whether you're hauling, delivering, or running job to job, our aftermarket parts and accessories help your rig stay sharp, strong, and road-ready.

Aftermarket Freightliner M2 Business Accessories

Our aftermarket semi truck parts are reliable, high-quality components—from front bumpers and grilles to lights, mirrors, exhausts, and more. Need engine parts to keep your powertrain smooth? Or custom touches to make your truck stand out? We’ve got it all.

Why Upgrade Your Semi Truck Parts?

- Built for performance: Get durable parts that stand up to heavy-duty jobs. - Boost your style: Chrome accents, lighting upgrades, and custom add-ons. - Fit you can trust: Designed to match the M2’s exact specs for a smooth install. - Versatile options: Perfect for owner-operators, fleets, and vocational trucks.
Whether you’re replacing worn components or tricking out your cab, the right parts make all the difference. Keep your Freightliner M2 Business Class looking great and running strong—mile after mile.

Frequently Asked Questions About Freightliner M2 Business Class Parts

What years and models of Freightliner M2 Business Class trucks do your parts fit?

Our parts are designed to fit Freightliner M2 Business Class trucks from 2003 to present. However, compatibility can vary by specific part type. For bumpers and body panels, there are typically three main design generations: 2003-2007, 2008-2017, and 2018-present. Always check the product description for exact year ranges, or contact our team with your OEM number to ensure proper fitment. Some parts may also fit the M2 106 and M2 112 variants, but verify compatibility before ordering.

Are aftermarket bumpers as durable as OEM parts, and what materials are they made from?

Quality aftermarket bumpers for the M2 Business Class are typically constructed from either heavy-duty steel (16-gauge or thicker) or high-impact ABS plastic, depending on the application. Steel bumpers often feature chrome plating or powder coating for corrosion resistance. While OEM parts meet factory specifications, many aftermarket options actually exceed OEM durability standards, especially those designed for vocational use. Look for bumpers with reinforced mounting brackets and proper drainage holes to prevent rust. We clearly specify material thickness and coating type in each product listing.

What are the most common installation challenges when replacing M2 Business Class bumpers?

The most frequent installation issues include: alignment with existing mounting holes (especially on 2008+ models where hole patterns changed), proper fitment around fog lights and sensors, and weight management during installation (steel bumpers can weigh 80-150 pounds). Many customers report needing to slightly enlarge mounting holes or use washers for proper alignment. We recommend having a second person assist with installation and using a floor jack to support the bumper during mounting. Installation typically takes 2-3 hours with basic tools, though vehicles with air dam systems or integrated step plates may require additional time.

What finish options are available, and which holds up best for different applications?

Common finishes include chrome-plated steel, polished stainless steel, painted steel, and textured plastic. For highway applications, chrome provides the classic look but requires regular maintenance to prevent pitting. Polished stainless steel costs more initially but resists corrosion better in salt-heavy regions. For vocational trucks in construction or waste management, painted steel bumpers with textured powder coating offer the best impact resistance and easy touch-up capability. Plastic bumpers work well for urban delivery trucks where weight savings and minor impact absorption are priorities.

Do I need to order additional hardware or brackets when buying a replacement bumper?

Most replacement bumpers come with new mounting brackets, but rarely include bolts, nuts, or washers. Plan to purchase Grade 8 hardware separately - typically you'll need 8-12 bolts (usually 1/2" or 5/8" diameter) with corresponding lock washers and nuts. Some installations may require bumper-to-frame adapter brackets if switching between bumper styles or upgrading from plastic to steel. Fog light brackets, license plate holders, and step plates are usually sold separately. Check if your existing hardware is reusable, but having new hardware on hand prevents installation delays.


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