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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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  • Brass Compression Fitting Union DOT W/ Size Options

    Brass Compression Fitting Union DOT W/ Size Options

    AUTOMANN USA

    $2.05 - $6.35
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of Trucks1/2 Inch Brass Compression Union DOTBrake Line Compression Union for Nylon Tubing UnionHigh-Quality...
    PPR_299938
    SKU:
    PPR_299938
    Product Type:
    Air, Electrical, & Safety
    Diameter Options:
    1/8 Inch
    Material Options:
    Brass
    Diameter Options:
    1/2 Inch
    Diameter Options:
    1/4 Inch
    Make:
    Universal Items
    $2.05 - $6.35
    Qty in Cart: 0
    Price:
    $2.05 - $6.35
    Subtotal:
  • Brass Compression Tube Nut Fitting DOT W/ Size Options

    Brass Compression Tube Nut Fitting DOT W/ Size Options

    AUTOMANN USA

    $1.01 - $2.47
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of Trucks3/8 Inch Brass Compression Nut DOT3/8 Inch Brass Compression Tube Nut Fitting* High Quality Compression...
    PPR_299937
    SKU:
    PPR_299937
    Product Type:
    Air, Electrical, & Safety
    Diameter Options:
    3/8 Inch
    Diameter Options:
    1/2 Inch
    Material Options:
    Brass
    Diameter Options:
    1/4 Inch
    Diameter Options:
    1/8 Inch
    Make:
    Universal Items
    $1.01 - $2.47
    Qty in Cart: 0
    Price:
    $1.01 - $2.47
    Subtotal:
  • Driver/Passenger Side 10 X 2.25 Inch Electric Brake Assembly 023-026-00/023-027-00

    Driver/Passenger Side 10 X 2.25 Inch Electric Brake Assembly 023-026-00/023-027-00

    AFTERMARKET

    $69.99 - $79.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of Trailers10 X 2.25 Inch Electric Brake Assembly Driver Side 023-026-00Electric Trailer Brake Assembly - 3,500...
    PPR_299935
    SKU:
    PPR_299935
    Truck Class:
    Heavy Duty
    Product Type:
    Trailer
    Make:
    Trailer
    Position:
    Driver Side
    Position:
    Passenger Side
    Rating:
    3500 LBS
    Make:
    Universal Items
    $69.99 - $79.99
    Qty in Cart: 0
    Price:
    $69.99 - $79.99
    Subtotal:
  • Shoe Brake Hardware Kit 142.453682 For Dana Spicer Camshafts

    Shoe Brake Hardware Kit 142.453682 For Dana Spicer Camshafts

    AUTOMANN USA

    $21.79 - $30.91
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrailersShoe Brake Hardware Kit 142.453682 For Dana/Spicer New Style CamshaftsReplacement Hardware Kit For...
    PPR_299932
    SKU:
    PPR_299932
    Product Type:
    Trailer
    Truck Class:
    Heavy Duty
    Make:
    Trailer
    Position:
    Kit Full
    Make:
    Universal Items
    $21.79 - $30.91
    Qty in Cart: 0
    Price:
    $21.79 - $30.91
    Subtotal:
  • Tire Repair Cold Patch Plugs - Fast Tire Repair - 24 Pack

    Tire Repair Cold Patch Plugs - Fast Tire Repair - 24 Pack

    AFTERMARKET

    $64.99 - $68.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of Trucks1.625 Inch Cold Patch Plug- 24 PackTire Repair Patch Plugs - Fast Tire RepairCold Patch Plugs fix tire...
    PPR_299934
    SKU:
    PPR_299934
    Product Type:
    Exterior
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    $64.99 - $68.99
    Qty in Cart: 0
    Price:
    $64.99 - $68.99
    Subtotal:
  • Steel Hub Pilot Wheel - 10 Hole

    Steel Hub Pilot Wheel - 10 Hole

    AFTERMARKET

    $201.99 - $253.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksHub Pilot Wheel 24.50 X 8.25 Inch White Steel - 10 HoleHub Pilot 24.5 X 8.25 Inch Steel Wheel* High...
    PPR_299933
    SKU:
    PPR_299933
    Truck Class:
    Heavy Duty
    Product Type:
    Wheels
    Material Options:
    Aluminum
    Color:
    White
    Material Options:
    Steel
    Finish Options:
    Polished
    Make:
    Universal Items
    Style Options:
    Hub Pilot Wheel
    $201.99 - $253.99
    Qty in Cart: 0
    Price:
    $201.99 - $253.99
    Subtotal:
  • On Sale
    FREE SHIPPING OVER $249
    Limited Quantity Available
    Polished Decorative Grille Bar With 1 Pointed End

    Polished Decorative Grille Bar With 1 Pointed End

    AFTERMARKET

    Now: $27.29
    Was: $38.99
    Choose Option(s) to see description.Fitment** Fits Multiple Makes & Models Of Trucks39.5 Inch Stainless Steel Grille Bar W/ 1 Pointed End39.5 Inch Grille Bar W/ 1 Pointed End* High Quality Grille...
    PPR_299903
    SKU:
    PPR_299903
    Length Options:
    39 1/2 Inch
    Finish Options:
    Polished
    Style Options:
    Pointed
    Length Options:
    40 1/2 Inch
    Product Type:
    Hood Parts & Acc.
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    Ready To Ship:
    Yes
    Now: $27.29
    Was: $38.99
    Qty in Cart: 0
    Price:
    Now: $27.29
    Was: $38.99
    Subtotal:
  • Rockwood Electric Toggle Switch Face Nut Socket Tool

    Rockwood Electric Toggle Switch Face Nut Socket Tool

    ROCKWOOD

    $14.99
    Socket Tool For Electric Toggle Switch By RockwoodMake toggle switch installations effortless with the Rockwood Electric Toggle Switch Face Nut Socket Tool. Designed for precision and durability,...
    UW2010
    SKU:
    UW2010
    Product Type:
    Tools
    Make:
    Universal Items
    $14.99
    Qty in Cart: 0
    Price:
    $14.99
    Subtotal:
  • RigMaster APU Shielded Cable For Caterpillar, Perkins & Kohler

    RigMaster APU Shielded Cable For Caterpillar, Perkins & Kohler

    RIGMASTER

    $7.74
    APU Shielded Cable By RigMasterKeep your APU running smoothly with the RigMaster Shielded Ethernet Cable. Built for Caterpillar, Perkins, and Kohler engines, it provides high-quality,...
    RP79003
    SKU:
    RP79003
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $7.74
    Qty in Cart: 0
    Price:
    $7.74
    Subtotal:
  • Minimizer 50 X 16.7 X 20 Inch Poly Underbody Tool Box

    Minimizer 50 X 16.7 X 20 Inch Poly Underbody Tool Box

    MINIMIZER

    $732.99
    Streamline your truck's tool storage with the Minimizer 50 x 16.7 x 20 Inch Poly Underbody Tool Box, built for professional drivers and heavy-duty use. Constructed from high-strength polyethylene,...
    PPR_299847
    SKU:
    PPR_299847
    Color:
    Various
    Height Options:
    20 Inch
    Color:
    Black
    Product Type:
    Toolboxes
    Color:
    White
    Length Options:
    50 Inch
    Width Options:
    16 5/8 Inch
    Color:
    Silver
    Height Options:
    17 Inch
    Color:
    Red
    Material Options:
    Plastic/Poly
    Color:
    Yellow
    Location:
    Made In USA
    Width Options:
    20 Inch
    Make:
    Universal Items
    Color:
    Gray
    $732.99
    Qty in Cart: 0
    Price:
    $732.99
    Subtotal:
  • Brunner Aluminum Cab Rack W/ Side Access Doors & Stainless Steel Doors

    Brunner Aluminum Cab Rack W/ Side Access Doors & Stainless Steel Doors

    BRUNNER FABRICATION

    $5,536.99 - $6,637.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksBrunner Half Rack Aluminum Cab Rack W/ Polished Stainless Steel Center & 2 Side Access DoorsHalf Rack...
    PPR_299841
    SKU:
    PPR_299841
    Material Options:
    Aluminum
    Product Type:
    Cargo Control
    Make:
    Universal Items
    Finish Options:
    Polished
    Location:
    Made In USA
    Material Options:
    Stainless Steel
    Light Options:
    With Lights
    Style Options:
    3 Door
    $5,536.99 - $6,637.99
    Qty in Cart: 0
    Price:
    $5,536.99 - $6,637.99
    Subtotal:
  • Brunner 80 X 80 Aluminum 4 Door Cab Rack With Stainless Steel Doors

    Brunner 80 X 80 Aluminum 4 Door Cab Rack With Stainless Steel Doors

    BRUNNER FABRICATION

    $6,606.99 - $7,612.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksBrunner Aluminum Cab Rack W/ 3 Vertical Doors 80 X 80 X 12 InchAluminum Cab Rack W/ Stainless Steel Top...
    PPR_299840
    SKU:
    PPR_299840
    Length Options:
    16 Inch
    Material Options:
    Aluminum
    Length Options:
    12 Inch
    Width Options:
    80 Inch
    Height Options:
    80 Inch
    Product Type:
    Cargo Control
    Make:
    Universal Items
    Finish Options:
    Polished
    Material Options:
    Stainless Steel
    Style Options:
    3 Door
    Location:
    Made In USA
    Style Options:
    4 Door
    Ready To Ship:
    Yes
    $6,606.99 - $7,612.99
    Qty in Cart: 0
    Price:
    $6,606.99 - $7,612.99
    Subtotal:
  • On Sale
    Limited Quantity Available
    5/8 X 1/2 Inch Brass Male Pipe Fitting

    5/8 X 1/2 Inch Brass Male Pipe Fitting

    PARTS DISTRIBUTING

    Now: $2.96
    Was: $10.19
    Brass Male Pipe Fitting- 5/8 Flare X 1/2 Inch NPTGet secure, leak-free connections with this high-quality 5/8 x 1/2 Inch Brass Male Pipe Fitting. Constructed from durable brass, it features a...
    F48108
    SKU:
    F48108
    Material Options:
    Brass
    Product Type:
    Engine Parts
    Length Options:
    1/2 Inch
    Make:
    Universal Items
    Ready To Ship:
    Yes
    Now: $2.96
    Was: $10.19
    Qty in Cart: 0
    Price:
    Now: $2.96
    Was: $10.19
    Subtotal:
  • Black Endura Cloth Bostrom Wide Ride Serta LoPro Mid Back Seat W/ Dual Armrests & Low Base

    Black Endura Cloth Bostrom Wide Ride Serta LoPro Mid Back Seat W/ Dual Armrests & Low Base

    BOSTROM TRUCK SEATS

    $1,188.99
    Endura Cloth Bostrom Wide Ride Serta LoPro Mid Back Seat W/ Dual Armrests & Low Base- BlackMaximize support and comfort on every drive with the Black Endura Cloth Bostrom Wide Ride Serta LoPro Mid...
    5110001K85
    SKU:
    5110001K85
    Product Type:
    Seats
    Style Options:
    Mid Back
    Material Options:
    Cloth
    Color:
    Black
    Make:
    Universal Items
    Width Options:
    23 Inch
    $1,188.99
    Qty in Cart: 0
    Price:
    $1,188.99
    Subtotal:
  • Black Endura Cloth Bostrom Wide Ride HiPro Mid Back Seat W/ Dual Armrests & High Base

    Black Endura Cloth Bostrom Wide Ride HiPro Mid Back Seat W/ Dual Armrests & High Base

    BOSTROM TRUCK SEATS

    $1,416.99
    Endura Cloth Bostrom Wide Ride HiPro Mid Back Seat W/ Dual Armrests & High Base- BlackTake your cab to the next level of comfort with the Black Endura Cloth Bostrom Wide Ride HiPro Mid Back Seat...
    5B19071550
    SKU:
    5B19071550
    Product Type:
    Seats
    Style Options:
    Mid Back
    Material Options:
    Cloth
    Color:
    Black
    Make:
    Universal Items
    $1,416.99
    Qty in Cart: 0
    Price:
    $1,416.99
    Subtotal:
  • Black Endura Cloth Bostrom Wide Ride Serta LoPro High Back Seat W/ Heat, Swivel & Low Base

    Black Endura Cloth Bostrom Wide Ride Serta LoPro High Back Seat W/ Heat, Swivel & Low Base

    BOSTROM TRUCK SEATS

    $1,594.99
    Endura Cloth Bostrom Wide Ride Serta LoPro High Back Seat W/ Heat, Swivel & Low Base- BlackDrive longer with comfort and confidence in the Black Endura Cloth Bostrom Wide Ride Serta LoPro High Back...
    5100110K85
    SKU:
    5100110K85
    Product Type:
    Seats
    Style Options:
    High Back
    Material Options:
    Cloth
    Color:
    Black
    Make:
    Universal Items
    Type Options:
    Heated
    Width Options:
    23 Inch
    $1,594.99
    Qty in Cart: 0
    Price:
    $1,594.99
    Subtotal:
  • On Sale
    Limited Quantity Available
    High Power Rectangular Flood Light- 1440 Lumens W/ Clear Lens & Black Housing

    High Power Rectangular Flood Light- 1440 Lumens W/ Clear Lens & Black Housing

    UNITED PACIFIC

    Now: $38.33
    Was: $70.44
    6 Diode LED Rectangular Flood Light W/ Black Housing & Clear LensEngineered for strength and visibility, this High Power Rectangular Flood Light delivers 1440 lumens from six durable diodes. Its...
    09-1614055
    SKU:
    09-1614055
    Product Type:
    Lighting
    Lumens:
    1001 to 2000 Lumens
    Make:
    Universal Items
    Ready To Ship:
    Yes
    Color:
    White/Clear
    Type Options:
    Stud Mount
    Style Options:
    Black Housing
    Material Options:
    Plastic/Poly
    Now: $38.33
    Was: $70.44
    Qty in Cart: 0
    Price:
    Now: $38.33
    Was: $70.44
    Subtotal:
  • 16.5 X 7 Inch 20K Eaton Type Brake Shoe Kit

    16.5 X 7 Inch 20K Eaton Type Brake Shoe Kit

    AUTOMANN USA

    $103.99
    20K Eaton Type Brake Shoe Kit- 16.5 X 7 InchKeep your braking system performing at its best with this 16.5 x 7 Inch 20K Eaton Type Brake Shoe Kit, engineered for dependable stopping power and...
    09-0517109
    SKU:
    09-0517109
    Product Type:
    Frame & Chassis
    Position:
    Kit Full
    Make:
    Universal Items
    Diameter Options:
    16 1/2 Inch
    Width Options:
    7 Inch
    $103.99
    Qty in Cart: 0
    Price:
    $103.99
    Subtotal:
  • Chrome 3 Hole Steering Wheel Hub Adapter For Freightliner 2007 & Newer

    Chrome 3 Hole Steering Wheel Hub Adapter For Freightliner 2007 & Newer

    UNITED PACIFIC

    $70.99
    3 Hole Steering Wheel Hub Adapter W/ 72 Splines Fits FreightlinerA clean steering wheel install starts with the correct hub, and this Chrome 3 Hole Hub Adapter is built specifically for Freightliner...
    03-1500040
    SKU:
    03-1500040
    Finish Options:
    Chrome-Plated
    Product Type:
    Interior
    Make:
    Freightliner
    Material Options:
    Diecast
    $70.99
    Qty in Cart: 0
    Price:
    $70.99
    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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