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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
  • 16.50 X 7.00 Inch 10 Hole Brake Drum Replaces 03123397002, 10001802, 107885, 123397, 34 02, 34-02, 3402, 66873, 66873F

    16.50 X 7.00 Inch 10 Hole Brake Drum Replaces 03123397002, 10001802, 107885, 123397, 34 02, 34-02, 3402, 66873, 66873F

    AFTERMARKET

    $438.99
    10 Hole 16.50 X 7.00 Inch Brake Drum* High Quality Brake Drum* (10) 1 Inch Bolt Holes* For Brake SuRFace Diameter 16.5 Inch X 7 Inch* 10.30 Inch Overall Width* 7.52 Inch Brake SuRFace Flat* 8.78 Inch...
    09-05170197
    SKU:
    09-05170197
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $438.99
    Qty in Cart: 0
    Price:
    $438.99
    Subtotal:
  • Camshaft Repair Half Kit Replaces E9791HD, S21181, R009791HD, R615022

    Camshaft Repair Half Kit Replaces E9791HD, S21181, R009791HD, R615022

    AUTOMANN USA

    $31.48
    Camshaft Repair Half KitRestore your truck's axle assembly with the Camshaft Repair Half Kit, designed for OEM replacements including E9791HD, S21181, R009791HD, and R615022. Complete with washers,...
    09-05170211
    SKU:
    09-05170211
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $31.48
    Qty in Cart: 0
    Price:
    $31.48
    Subtotal:
  • Brake Shoe Hardware Kit Replaces 52243, E1887AHD. E1887ASHD, E1887HD, E4311EHDB, E4311HD, MBCBK0030, CQ67319, R507002, R507002BK, R507002BULK, 241SS, 24A

    Brake Shoe Hardware Kit Replaces 52243, E1887AHD. E1887ASHD, E1887HD, E4311EHDB, E4311HD, MBCBK0030, CQ67319, R507002, R507002BK, R507002BULK, 241SS, 24A

    AUTOMANN USA

    $15.34
    Brake Shoe Hardware Kit 142.431780, 142.431180Upgrade your brakes with confidence using the Brake Shoe Hardware Kit, a premium replacement for numerous OEM models including 52243, E1887HD, E4311HD,...
    09-05170190
    SKU:
    09-05170190
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $15.34
    Qty in Cart: 0
    Price:
    $15.34
    Subtotal:
  • 1/2 X 3/8 Inch Brass Hose Coupling W/ Spring Replaces E8593

    1/2 X 3/8 Inch Brass Hose Coupling W/ Spring Replaces E8593

    AUTOMANN USA

    $14.07
    1/2 X 3/8 Inch Hose Coupling W/ Spring* High Quality Hose Coupling* Fitting Type: Air Brake Hose* Connection: Hose Inner Diameter To Male NPT* Made Of Brass* 1/2 Inch Inner Diameter Hose End* 3/8...
    09-05170178
    SKU:
    09-05170178
    Material Options:
    Brass
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    $14.07
    Qty in Cart: 0
    Price:
    $14.07
    Subtotal:
  • 15.00 X 4.00 10 Hole Brake Drum Replaces 3667, 3667X, 65542, 65542B

    15.00 X 4.00 10 Hole Brake Drum Replaces 3667, 3667X, 65542, 65542B

    AFTERMARKET

    $489.99
    10 Hole 15.00 X 4.00 Brake Drum* High Quality Brake Drum* Balanced To 20 Inch - Oz* (10) 0.810 Inch Bolt Holes* For Brake SuRFace Diameter 15 Inch X 4 Inch* 8.74 Inch Overall Width* 4.50 Inch Brake...
    09-05170196
    SKU:
    09-05170196
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $489.99
    Qty in Cart: 0
    Price:
    $489.99
    Subtotal:
  • Brake Shoe Hardware Kit 142.422381, 142.431781, 142.431181, 142.467480 For Eaton

    Brake Shoe Hardware Kit 142.422381, 142.431781, 142.431181, 142.467480 For Eaton

    AUTOMANN USA

    $20.94
    Brake Shoe Hardware Kit Replaces E3801, CQ69004, E507003, R507077, 241AFKeep your braking system operating at peak performance with the Brake Shoe Hardware Kit for Eaton, a high-quality kit designed...
    09-05170188
    SKU:
    09-05170188
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $20.94
    Qty in Cart: 0
    Price:
    $20.94
    Subtotal:
  • 16.50 X 5.00 Inch 12K RSD Brake Shoe Kit Replaces 314146, R507094, 818278, E10197, E5479A, R567503, 19-915

    16.50 X 5.00 Inch 12K RSD Brake Shoe Kit Replaces 314146, R507094, 818278, E10197, E5479A, R567503, 19-915

    AFTERMARKET

    $177.99
    16.50 X 5.00 Inch 12K RSD Brake Shoe Kit* High Quality Brake Shoe Box Kit* Eaton ES2 Type* Open Anchor End* Open Roller End* Double Web* 12K Lbs RSD Value* Kit Includes:  - (2) Lined Brake Shoes  -...
    09-05170179
    SKU:
    09-05170179
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $177.99
    Qty in Cart: 0
    Price:
    $177.99
    Subtotal:
  • 3/8 X 1/4 Inch Brass Hose Coupling W/ Spring Replaces E8590

    3/8 X 1/4 Inch Brass Hose Coupling W/ Spring Replaces E8590

    AUTOMANN USA

    $7.37
    3/8 X 1/4 Inch Hose Coupling W/ Spring* High Quality Hose Coupling* Fitting Type: Air Brake Hose* Connection: Hose Inner Diameter To Male NPT* Made Of Brass* 3/8 Inch Inner Diameter Hose End* 1/4...
    09-05170174
    SKU:
    09-05170174
    Material Options:
    Brass
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    $7.37
    Qty in Cart: 0
    Price:
    $7.37
    Subtotal:
  • 15.00 X 4.00 Inch 20K Brake Shoe Kit Replaces KSF5571308E

    15.00 X 4.00 Inch 20K Brake Shoe Kit Replaces KSF5571308E

    AFTERMARKET

    $105.99
    15.00 X 4.00 Inch 20K Brake Shoe Kit* High Quality Brake Shoe Box Kit* Eaton ES2 Type* Open Anchor End* Open Roller End* Single Web* 20K Lbs Value* Kit Includes:  - (2) Lined Brake Shoes  - (1) 7...
    09-05170187
    SKU:
    09-05170187
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $105.99
    Qty in Cart: 0
    Price:
    $105.99
    Subtotal:
  • 1/2 X 1/2 Inch Brass Hose Coupling W/ Spring Replaces E8594

    1/2 X 1/2 Inch Brass Hose Coupling W/ Spring Replaces E8594

    AUTOMANN USA

    $13.67
    1/2 X 1/2 Inch Hose Coupling W/ SpringKeep your air brake system functioning properly with the 1/2 x 1/2 Inch Brass Hose Coupling with Spring. Built to replace E8594, it features a secure 1/2-inch...
    09-05170177
    SKU:
    09-05170177
    Material Options:
    Brass
    Diameter Options:
    1/2 Inch
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    $13.67
    Qty in Cart: 0
    Price:
    $13.67
    Subtotal:
  • 3/8 X 3/8 Inch Brass Hose Coupling W/ Spring Replaces E8591

    3/8 X 3/8 Inch Brass Hose Coupling W/ Spring Replaces E8591

    AUTOMANN USA

    $8.11
    3/8 X 3/8 Inch Hose Coupling W/ Spring* High Quality Hose Coupling* Fitting Type: Air Brake Hose* Connection: Hose Inner Diameter To Male NPT* Made Of Brass* 3/8 Inch Inner Diameter Hose End* 3/8...
    09-05170175
    SKU:
    09-05170175
    Diameter Options:
    3/8 Inch
    Product Type:
    Air, Electrical, & Safety
    Material Options:
    Brass
    Make:
    Universal Items
    $8.11
    Qty in Cart: 0
    Price:
    $8.11
    Subtotal:
  • 3/8 X 1/2 Inch Brass Hose Coupling W/ Spring Replaces E8592

    3/8 X 1/2 Inch Brass Hose Coupling W/ Spring Replaces E8592

    AUTOMANN USA

    $8.82
    3/8 X 1/2 Inch Hose Coupling W/ Spring* High Quality Hose Coupling* Fitting Type: Air Brake Hose* Connection: Hose Inner Diameter To Male NPT* Made Of Brass* 3/8 Inch Inner Diameter Hose End* 1/2...
    09-05170176
    SKU:
    09-05170176
    Product Type:
    Air, Electrical, & Safety
    Material Options:
    Brass
    Make:
    Universal Items
    $8.82
    Qty in Cart: 0
    Price:
    $8.82
    Subtotal:
  • 15.00 X 4.00 Inch 10 Hole Brake Drum Replaces 10081079, 123421, 3721X, 17QJ4106, 123366, 85123366002, 85123421002, 61527, 61527B

    15.00 X 4.00 Inch 10 Hole Brake Drum Replaces 10081079, 123421, 3721X, 17QJ4106, 123366, 85123366002, 85123421002, 61527, 61527B

    AFTERMARKET

    $303.99
    10 Hole 15.00 X 4.00 Inch Brake Drum* High Quality Brake Drum* Balanced To 20 Inch - Oz* (10) 1 Inch Bolt Holes* For Brake SuRFace Diameter 15 Inch X 4 Inch* 8.78 Inch Overall Width* 4.78 Inch Brake...
    09-05170171
    SKU:
    09-05170171
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $303.99
    Qty in Cart: 0
    Price:
    $303.99
    Subtotal:
  • 16.50 X 7.00 Inch 10 Hole Brake Drum Replaces 12386614, 3122948002, 85122948002, 66865, 66865B

    16.50 X 7.00 Inch 10 Hole Brake Drum Replaces 12386614, 3122948002, 85122948002, 66865, 66865B

    AFTERMARKET

    $500.99
    10 Hole 16.50 X 7.00 Inch Brake Drum* High Quality Brake Drum* Balanced To 20 Inch - Oz* (10) 0.810 Inch Bolt Holes* For Brake SuRFace Diameter 16.5 Inch X 7 Inch* 10.310 Inch Overall Width* 7.50...
    09-05170167
    SKU:
    09-05170167
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $500.99
    Qty in Cart: 0
    Price:
    $500.99
    Subtotal:
  • 16.50 X 6.00 Inch 20K Brake Shoe Kit Replaces 819706, R700025, 314146, R507094, 818278, E10197, E5479A, R567503, 19-915

    16.50 X 6.00 Inch 20K Brake Shoe Kit Replaces 819706, R700025, 314146, R507094, 818278, E10197, E5479A, R567503, 19-915

    AFTERMARKET

    $145.99
    16.50 X 6.00 Inch Eaton ES2 Type 20K Brake Shoe Kit* High Quality Brake Shoe Box Kit* Eaton ES2 Type* Open Anchor End* Open Roller End* Double Web* 20K Lbs Value* Kit Includes:  - (2) Unlined Brake...
    09-05170169
    SKU:
    09-05170169
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $145.99
    Qty in Cart: 0
    Price:
    $145.99
    Subtotal:
  • 1/2 X 1/2 Inch Brass Hose Coupling W/ Spring Replaces E8599

    1/2 X 1/2 Inch Brass Hose Coupling W/ Spring Replaces E8599

    AUTOMANN USA

    $17.43
    1/2 X 1/2 Inch Hose Coupling W/ SpringDepend on the 1/2 X 1/2 Inch Brass Hose Coupling with Spring for secure air brake connections, designed to replace E8599. Engineered for air brake hoses, this...
    09-05170161
    SKU:
    09-05170161
    Material Options:
    Brass
    Product Type:
    Air, Electrical, & Safety
    Diameter Options:
    1/2 Inch
    Make:
    Universal Items
    $17.43
    Qty in Cart: 0
    Price:
    $17.43
    Subtotal:
  • 16.50 X 6.00 Inch 23K Brake Shoe Kit Replaces 819706, R700025, 314146, R507094, 818278, E10197, E5479A, R567503, 19-915

    16.50 X 6.00 Inch 23K Brake Shoe Kit Replaces 819706, R700025, 314146, R507094, 818278, E10197, E5479A, R567503, 19-915

    AFTERMARKET

    $148.99
    16.50 X 6.00 Inch Eaton ES2 Type 23K Brake Shoe Kit* High Quality Brake Shoe Box Kit* Eaton ES2 Type* Open Anchor End* Open Roller End* Double Web* 23K Lbs Value* Kit Includes:  - (2) Unlined Brake...
    09-05170170
    SKU:
    09-05170170
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $148.99
    Qty in Cart: 0
    Price:
    $148.99
    Subtotal:
  • 3/8 X 3/8 Inch Brass Hose Coupling W/ Spring Replaces E8596

    3/8 X 3/8 Inch Brass Hose Coupling W/ Spring Replaces E8596

    AUTOMANN USA

    $9.13
    3/8 X 3/8 Inch Hose Coupling W/ Spring* High Quality Hose Coupling* Fitting Type: Air Brake Hose* Connection: Hose Inner Diameter To Male NPT* Spring Attached To Male Connector End* Made Of Brass*...
    09-05170158
    SKU:
    09-05170158
    Diameter Options:
    3/8 Inch
    Material Options:
    Brass
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    $9.13
    Qty in Cart: 0
    Price:
    $9.13
    Subtotal:
  • 3/8 X 1/2 Inch Brass Hose Coupling W/ Spring Replaces E8597

    3/8 X 1/2 Inch Brass Hose Coupling W/ Spring Replaces E8597

    AUTOMANN USA

    $9.45
    3/8 X 1/2 Inch Hose Coupling W/ Spring* High Quality Hose Coupling* Fitting Type: Air Brake Hose* Connection: Hose Inner Diameter To Male NPT* Spring Attached To Male Connector End* Made Of Brass*...
    09-05170159
    SKU:
    09-05170159
    Product Type:
    Air, Electrical, & Safety
    Material Options:
    Brass
    Make:
    Universal Items
    $9.45
    Qty in Cart: 0
    Price:
    $9.45
    Subtotal:
  • 3/8 X 1/4 Inch Brass Hose Coupling W/ Spring Replaces E8595

    3/8 X 1/4 Inch Brass Hose Coupling W/ Spring Replaces E8595

    AUTOMANN USA

    $8.27
    3/8 X 1/4 Inch Hose Coupling W/ Spring* High Quality Hose Coupling* Fitting Type: Air Brake Hose* Connection: Hose Inner Diameter To Male NPT* Spring Attached To Male Connector End* Made Of Brass*...
    09-05170157
    SKU:
    09-05170157
    Material Options:
    Brass
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    $8.27
    Qty in Cart: 0
    Price:
    $8.27
    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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