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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.
  • Product
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • Radius Arm Bushing Replaces K201635

    Radius Arm Bushing Replaces K201635

    AFTERMARKET

    $58.99
    Radius Arm Bushing Fits Rear Wheel Drive Models OnlyMinimize suspension wear and improve ride quality with a high-quality radius arm bushing. Designed to replace K201635, this bushing is engineered...
    29-05250030
    SKU:
    29-05250030
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $58.99
    Qty in Cart: 0
    Price:
    $58.99
    Subtotal:
  • Upper Rear Shock Bracket Replaces 57322003, 57322-003 For Hendrickson Suspension

    Upper Rear Shock Bracket Replaces 57322003, 57322-003 For Hendrickson Suspension

    AFTERMARKET

    $39.57
    Hendrickson Suspension Upper Rear Shock BracketSecure your rear suspension with a shock bracket engineered for strength and reliability. This high-quality Upper Rear Shock Bracket for Hendrickson...
    29-05250039
    SKU:
    29-05250039
    Position:
    Upper
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $39.57
    Qty in Cart: 0
    Price:
    $39.57
    Subtotal:
  • 15 X 4 Inch Brake Kit Replaces E4702KITB, E4702KT, E9064, E9064SHD, CQ65642, KIT8824HD, MKT4702KT, R508824, 66A

    15 X 4 Inch Brake Kit Replaces E4702KITB, E4702KT, E9064, E9064SHD, CQ65642, KIT8824HD, MKT4702KT, R508824, 66A

    AUTOMANN USA

    $17.81
    Brake Kit For 15 Inch x 4 Inch Unlined Brake ShoesKeep your brakes operating at peak efficiency with this 15 X 4 Inch Brake Kit. Complete kit includes rollers, anchor pins, bushings, coil springs,...
    29-05170021
    SKU:
    29-05170021
    Position:
    Kit Full
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $17.81
    Qty in Cart: 0
    Price:
    $17.81
    Subtotal:
  • Spigot Cap Replaces 260002, E4680, R304680 For Chalmers Suspension

    Spigot Cap Replaces 260002, E4680, R304680 For Chalmers Suspension

    AFTERMARKET

    $81.99
    0.75 Inch ID X 3.75 Inch OD Spigot CapMaintain proper alignment and prevent premature wear with a premium spigot cap. Designed for Chalmers suspension systems, this replacement part fits 260002,...
    29-05250028
    SKU:
    29-05250028
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $81.99
    Qty in Cart: 0
    Price:
    $81.99
    Subtotal:
  • Pivot Bushing Kit Replaces 0095061, R0095061

    Pivot Bushing Kit Replaces 0095061, R0095061

    AUTOMANN USA

    $758.99
    Pivot Bushing Used On Hendrickson Turner Lift AxleBring worn pivot points back to proper working condition with a complete bushing kit. This high-quality replacement kit includes all required...
    29-05200033
    SKU:
    29-05200033
    Position:
    Kit Full
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $758.99
    Qty in Cart: 0
    Price:
    $758.99
    Subtotal:
  • 2.25 Inch U- Joint Replaces 150635R91, 150635R92, 5092X, 592X, 5-92X

    2.25 Inch U- Joint Replaces 150635R91, 150635R92, 5092X, 592X, 5-92X

    AUTOMANN USA

    $21.61
    2.25 Inch U- Joint- L6N SeriesEnsure smooth and efficient driveline operation with a U-joint engineered for heavy-duty use. This 2.25 Inch U-Joint, L6N series with inside snap ring design, includes a...
    29-05210000
    SKU:
    29-05210000
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $21.61
    Qty in Cart: 0
    Price:
    $21.61
    Subtotal:
  • 16.5 X 7 Inch Brake Kit Replaces E10244, E4709EX, CQ65477, MKT4709ES2, R507064

    16.5 X 7 Inch Brake Kit Replaces E10244, E4709EX, CQ65477, MKT4709ES2, R507064

    AUTOMANN USA

    $8.55
    Brake Kit For Eaton 16.5 Inch x 7 Inch BrakesEnsure smooth and reliable brake operation with this 16.5 X 7 Inch Brake Kit for Eaton brakes. Featuring two rollers, two springs, a larger spring, and...
    29-051700026
    SKU:
    29-051700026
    Position:
    Kit Full
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $8.55
    Qty in Cart: 0
    Price:
    $8.55
    Subtotal:
  • King Pin Kit Replaces 15585841, 370904088, 370905022, 597258C91, 85125838, KIT1312, KP2748, KPK1116, R201312, R201339, SP621590, SRK-105, V1110083 For International, Chevrolet/GMC

    King Pin Kit Replaces 15585841, 370904088, 370905022, 597258C91, 85125838, KIT1312, KP2748, KPK1116, R201312, R201339, SP621590, SRK-105, V1110083 For International, Chevrolet/GMC

    AFTERMARKET

    $331.99
    King Pin Kit W/ 1.999 X 11.21 Inch King Pin & Composite BushingsOptimize your truck's steering system with this King Pin Kit. This kit includes opposite double draw key king pins, composite bushings,...
    29-05200009
    SKU:
    29-05200009
    Product Type:
    Frame & Chassis
    Position:
    Kit Full
    Make:
    Universal Items
    $331.99
    Qty in Cart: 0
    Price:
    $331.99
    Subtotal:
  • King Pin Kit Replaces 003200, 1400738, R-003200, 003270, 1145696, R-003270 For Hendrickson Aux Suspension Systems

    King Pin Kit Replaces 003200, 1400738, R-003200, 003270, 1145696, R-003270 For Hendrickson Aux Suspension Systems

    AFTERMARKET

    $497.99
    King Pin Kit W/ 1.810 X 9.570 Inch King Pin & Bi-Metal BushingsSteering control and suspension longevity start with properly fitted king pins. This Hendrickson auxiliary suspension king pin kit...
    29-05200012
    SKU:
    29-05200012
    Product Type:
    Frame & Chassis
    Position:
    Kit Full
    Make:
    Universal Items
    $497.99
    Qty in Cart: 0
    Price:
    $497.99
    Subtotal:
  • King Pin Kit Replaces 010300, 1469753, R010300, R-010300 For Hendrickson Aux Suspension Systems

    King Pin Kit Replaces 010300, 1469753, R010300, R-010300 For Hendrickson Aux Suspension Systems

    AFTERMARKET

    $528.99
    King Pin Kit W/ 1.813 X 9.55 Inch King Pin & Bi-Metal BushingsUpgrade worn suspension components with a king pin kit engineered for precision and strength. This kit for Hendrickson auxiliary...
    29-05200011
    SKU:
    29-05200011
    Position:
    Kit Full
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $528.99
    Qty in Cart: 0
    Price:
    $528.99
    Subtotal:
  • 16.50 X 7.00 Inch 20K Brake Shoe Box Kit

    16.50 X 7.00 Inch 20K Brake Shoe Box Kit

    AFTERMARKET

    $164.99
    20K Brake Shoe Box Kit- 16.50 X 7.00 InchHeavy loads demand braking components that won't back down. This 16.50 x 7.00 Inch Brake Shoe Box Kit is engineered for 20K axle applications and includes two...
    29-05170024
    SKU:
    29-05170024
    Product Type:
    Frame & Chassis
    Position:
    Kit Full
    Make:
    Universal Items
    $164.99
    Qty in Cart: 0
    Price:
    $164.99
    Subtotal:
  • 6 Inch Slack Adjuster- Haldex Self-Setting Type Replaces E11924, 40920025, 40020214, 569640020214, M808001

    6 Inch Slack Adjuster- Haldex Self-Setting Type Replaces E11924, 40920025, 40020214, 569640020214, M808001

    AFTERMARKET

    $155.99
    6 Inch Automatic Haldex Self-Setting Type- 1.625 Inch-37 SplineAchieve precise braking control with this 6 Inch Slack Adjuster - Haldex Self-Setting Type. Designed for Fruehauf trailer axles with 16...
    29-05170025
    SKU:
    29-05170025
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $155.99
    Qty in Cart: 0
    Price:
    $155.99
    Subtotal:
  • 6 Inch Slack Adjuster- Gunite Type Replaces E15056, AS1173, SA11903, 25QD419P4, 20714928

    6 Inch Slack Adjuster- Gunite Type Replaces E15056, AS1173, SA11903, 25QD419P4, 20714928

    AFTERMARKET

    $98.99
    6 Inch Automatic Gunite Type Slack Adjuster- 1.50 Inch-28 SplineAchieve smooth, automatic brake adjustment with this 6 Inch Slack Adjuster - Gunite Type. Engineered for welded clevis chambers with 1...
    29-05170019
    SKU:
    29-05170019
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $98.99
    Qty in Cart: 0
    Price:
    $98.99
    Subtotal:
  • Bushing Tool Replaces AL800089, 8080089, 34013087L, 34013088, 34013088L For Hendrickson Suspension

    Bushing Tool Replaces AL800089, 8080089, 34013087L, 34013088, 34013088L For Hendrickson Suspension

    AFTERMARKET

    $905.99
    Hendrickson Suspension Bushing ToolEnsure efficient suspension service with this high-quality Bushing Tool for Hendrickson, replacing AL800089, 8080089, 34013087L, 34013088, and 34013088L. Compatible...
    29-05100270
    SKU:
    29-05100270
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $905.99
    Qty in Cart: 0
    Price:
    $905.99
    Subtotal:
  • 16.50 X 5.00 Inch Brake Drum Replaces 9002X, 2603638C1, 53-123627-002, 53-123816-002, 53123627002, 53123816002, 600001

    16.50 X 5.00 Inch Brake Drum Replaces 9002X, 2603638C1, 53-123627-002, 53-123816-002, 53123627002, 53123816002, 600001

    AFTERMARKET

    $433.99
    16.50 X 5.00 Inch 10 Hole Brake DrumKeep your brakes performing at their best with this 16.50 X 5.00 Inch Brake Drum. Built with a steel shell, fused gray iron liner, and ten 1.28-inch bolt holes,...
    29-05170015
    SKU:
    29-05170015
    Product Type:
    Frame & Chassis
    Material Options:
    Steel
    Make:
    Universal Items
    $433.99
    Qty in Cart: 0
    Price:
    $433.99
    Subtotal:
  • 16.50 X 7.00 Inch 23K Brake Shoe Box Kit

    16.50 X 7.00 Inch 23K Brake Shoe Box Kit

    AFTERMARKET

    $141.99
    23K Brake Shoe Box Kit- 16.50 X 7.00 InchAchieve reliable brake operation with this high-quality 16.50 X 7.00 Inch 23K Brake Shoe Box Kit. Kit components include dual-webbed brake shoes, 68 rivets,...
    29-05170016
    SKU:
    29-05170016
    Product Type:
    Frame & Chassis
    Position:
    Kit Full
    Make:
    Universal Items
    $141.99
    Qty in Cart: 0
    Price:
    $141.99
    Subtotal:
  • 16.5 Inch Brake Kit Replaces E2769HD, E4515QHD, S21183, 8000HD, R508001BK, 4515Q

    16.5 Inch Brake Kit Replaces E2769HD, E4515QHD, S21183, 8000HD, R508001BK, 4515Q

    AUTOMANN USA

    $14.90
    Brake Kit For Meritor 16.5 Inch Q BrakesKeep your truck stopping safely with this durable 16.5 Inch Brake Kit. Built for Meritor 16.5 Inch Q Brakes, it includes rollers, anchor pins, anchor pin...
    29-051700025
    SKU:
    29-051700025
    Product Type:
    Frame & Chassis
    Position:
    Kit Full
    Make:
    Universal Items
    $14.90
    Qty in Cart: 0
    Price:
    $14.90
    Subtotal:
  • Height Control Valve Replaces 59899000, 59899000L, 20QE4165AM, 20QE4165M, 25168691

    Height Control Valve Replaces 59899000, 59899000L, 20QE4165AM, 20QE4165M, 25168691

    AUTOMANN USA

    $55.99
    Height Control Valve- 90 PSI Working Pressure, 130 PSI Maximum PressureTake control of your truck's suspension with this high-quality Height Control Valve. Complete with dump valve and hose, it...
    29-05100586
    SKU:
    29-05100586
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $55.99
    Qty in Cart: 0
    Price:
    $55.99
    Subtotal:
  • Center Bushing Kit Replaces 30437, 30437000, 30437-000 For Hendrickson Suspension

    Center Bushing Kit Replaces 30437, 30437000, 30437-000 For Hendrickson Suspension

    AFTERMARKET

    $748.99
    Center Bushing KitRestore the integrity of your Hendrickson suspension with this high-quality Center Bushing Kit. Designed to replace 30437, 30437000, and 30437-000, it services two beams and...
    29-05100218
    SKU:
    29-05100218
    Position:
    Kit Full
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $748.99
    Qty in Cart: 0
    Price:
    $748.99
    Subtotal:
  • Torque Rod Frame Bracket Replaces 800057, 1515965C1, 5HR709 For Chalmers Suspension

    Torque Rod Frame Bracket Replaces 800057, 1515965C1, 5HR709 For Chalmers Suspension

    AFTERMARKET

    $209.99
    6.875 X 3.25 Inch Torque Rod Frame Bracket W/ 2.60 Inch Frame Hole & 0.80 Inch Bolt HolesReinforce your suspension system with this heavy-duty Torque Rod Frame Bracket for Chalmers suspension...
    29-05100295
    SKU:
    29-05100295
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $209.99
    Qty in Cart: 0
    Price:
    $209.99
    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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