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Mack Trucks

Shop Mack truck parts and accessories for popular models like the Superliner, R, RD, CX, or CH/CHN/CHU.
  • Product
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • Type 30 Service Chamber W/ 2.25 Inch Push Rod & Standard Stroke Replaces K058721, SC30CW, 1430901

    Type 30 Service Chamber W/ 2.25 Inch Push Rod & Standard Stroke Replaces K058721, SC30CW, 1430901

    AFTERMARKET

    $70.99
    Type 30 Service Chamber W/ Standard Stroke & Welded ClevisFor drivers who demand lasting reliability, this Type 30 Service Chamber with 2.25-inch Push Rod & Standard Stroke offers outstanding value...
    09-05170239
    SKU:
    09-05170239
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $70.99
    Qty in Cart: 0
    Price:
    $70.99
    Subtotal:
  • 16.50 X 7.00 Inch 23K Brake Shoe Kit

    16.50 X 7.00 Inch 23K Brake Shoe Kit

    AFTERMARKET

    $156.99
    Fruehauf XEM Type 16.50 X 7.00 Inch Brake Shoe Kit- 23K* High Quality Brake Shoe Box Kit* Fruehauf XEM Type* Open Anchor End* Open Roller End* Double Web* 23K Lbs Value* Kit Includes:  - (2) Unlined...
    09-05170227
    SKU:
    09-05170227
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $156.99
    Qty in Cart: 0
    Price:
    $156.99
    Subtotal:
  • Camshaft Repair Half Kit Replaces 4370901

    Camshaft Repair Half Kit Replaces 4370901

    AUTOMANN USA

    $26.98
    Camshaft Repair Half KitMaintain optimal axle function with the Camshaft Repair Half Kit, engineered to replace 4370901. Equipped with six washers, two lock rings, a camshaft bracket, a bushing, and...
    09-05170214
    SKU:
    09-05170214
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $26.98
    Qty in Cart: 0
    Price:
    $26.98
    Subtotal:
  • 16.50 X 7.00 Inch 25K Brake Shoe Kit

    16.50 X 7.00 Inch 25K Brake Shoe Kit

    AFTERMARKET

    $155.99
    Meritor Q Type 16.50 X 7.00 Inch Brake Shoe Kit- 25KKeep your truck braking system performing safely and efficiently with this 16.50 X 7.00 Inch 25K Brake Shoe Kit. Built for reliability, this high...
    09-05170225
    SKU:
    09-05170225
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $155.99
    Qty in Cart: 0
    Price:
    $155.99
    Subtotal:
  • MGM Spring Brake Type 30/30 3.00 Inch Stroke Replaces 3231051, 3231051X

    MGM Spring Brake Type 30/30 3.00 Inch Stroke Replaces 3231051, 3231051X

    AFTERMARKET

    $317.99
    Type 30/30 MGM Spring Brake- 3.00 Inch Stroke* High Quality Spring Brake* 30/30 Type* 3 Inch Stroke Length* 8.0" Minimum In Caged Position Lower Push Rod  - With Molded Nitrile Rubber Air Seal*...
    09-05170228
    SKU:
    09-05170228
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $317.99
    Qty in Cart: 0
    Price:
    $317.99
    Subtotal:
  • 16.50 X 7.00 10 Hole Easy- Roll Brake Drum

    16.50 X 7.00 10 Hole Easy- Roll Brake Drum

    AFTERMARKET

    $403.99
    Easy- Roll 16.50 X 7.00 Inch Brake DrumUpgrade your braking system with the 16.50 X 7.00 10 Hole Easy-Roll Brake Drum, engineered to deliver smooth operation and long-term durability. Cast iron...
    09-05170215
    SKU:
    09-05170215
    Width Options:
    10 5/8 Inch
    Material Options:
    Cast Iron
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $403.99
    Qty in Cart: 0
    Price:
    $403.99
    Subtotal:
  • MGM Spring Brake Type 30/30 2.50 Inch Stroke Replaces EPRO3030STD-WC, EPRO3030STDWC, NT3030STD-WC, NT3030STDWC, 3430951, 3430951X

    MGM Spring Brake Type 30/30 2.50 Inch Stroke Replaces EPRO3030STD-WC, EPRO3030STDWC, NT3030STD-WC, NT3030STDWC, 3430951, 3430951X

    AFTERMARKET

    $286.99
    Type 30/30 MGM Spring Brake- 2.50 Inch Push Rod* High Quality Spring Brake* 30/30 Type* Welded Clevis* 2-1/2 Inch Stroke Length* 2-1/4 Inch In Caged Lower Position Push Rod  - Molded Nitrile Rubber...
    09-05170205
    SKU:
    09-05170205
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $286.99
    Qty in Cart: 0
    Price:
    $286.99
    Subtotal:
  • 15.00 X 4.00 Inch Brake Drum- 10 Hole

    15.00 X 4.00 Inch Brake Drum- 10 Hole

    AFTERMARKET

    $288.99
    10 Hole 15.00 X 4.00 Inch Brake Drum* High Quality Brake Drum* Balanced To 20 Inch - Oz* (10) 1.280 Inch Bolt Holes* For Brake SuRFace Diameter 15 Inch X 4 Inch* 8.60 Inch Overall Width* 4.72 Inch...
    09-05170218
    SKU:
    09-05170218
    Product Type:
    Frame & Chassis
    Width Options:
    8 5/8 Inch
    Make:
    Universal Items
    $288.99
    Qty in Cart: 0
    Price:
    $288.99
    Subtotal:
  • Camshaft Repair Half Kit Replaces CQ66939

    Camshaft Repair Half Kit Replaces CQ66939

    AUTOMANN USA

    $9.24
    Camshaft Repair Half KitOptimize your axle repair with the Camshaft Repair Half Kit, engineered for CQ66939 replacement. Including a washer, two camshaft bushings, three camshaft seals, an extra...
    09-05170213
    SKU:
    09-05170213
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $9.24
    Qty in Cart: 0
    Price:
    $9.24
    Subtotal:
  • MGM Spring Brake Type 30/30 Replaces 3531051X, 3531051

    MGM Spring Brake Type 30/30 Replaces 3531051X, 3531051

    AFTERMARKET

    $335.99
    Type 30/30 MGM Spring Brake- 8.00 Inch Push Rod* High Quality Spring Brake* 30/30 Type* 2.5 Inch Stroke Length* 8.0 Inch Minimum In Caged Position Lower Push Rod  - With Molded Nitrile Rubber Air...
    09-05170210
    SKU:
    09-05170210
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $335.99
    Qty in Cart: 0
    Price:
    $335.99
    Subtotal:
  • Brake Shoe Hardware Kit 142.431780, 142.431180 For Eaton

    Brake Shoe Hardware Kit 142.431780, 142.431180 For Eaton

    AUTOMANN USA

    $14.31
    Brake Shoe Hardware Kit Replaces 70326, E1418, R567502, 78580, E1428A, E1428S, R567006, 19-854Maintain reliable and safe braking with the Brake Shoe Hardware Kit for Eaton, a high-quality kit...
    09-05170189
    SKU:
    09-05170189
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $14.31
    Qty in Cart: 0
    Price:
    $14.31
    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:
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Adding your products to cart

Mack Semi Truck Parts and Accessories

Keeping your Mack on the road means having access to the right parts—fast. At 4 State Trucks, we carry a full line of aftermarket Mack truck parts and accessories to help you stay ahead of maintenance, minimize downtime, and keep your business rolling. Whether you’re running a Mack Superliner or a classic Mack R Model, we’ve got the semi truck parts that get the job done.

High-Quality Parts for Every Mack Truck Model

Whether you're replacing worn parts or upgrading your rig’s performance, we carry commercial truck parts for a wide range of Mack models. From the rugged Superliner to the workhorse R Model, our inventory includes everything from exterior body panels to cab accessories and under-hood components. This Mack collection is built to meet the same heavy-duty standards your truck was designed for. If you're looking for reliable truck parts online, you've come to the right place.

Best Features

When you invest in semi truck parts, you need gear that’s built for durability and efficiency. Our aftermarket Mack parts are engineered to hold up under pressure and deliver the performance your business depends on. Top features include:
  • Diesel-compatible components designed for fuel efficiency and power.
  • Tough, road-ready construction for maximum durability.
  • Easy-to-install parts for both urban and off-road applications.
  • Support for a wide range of configurations and payload needs.
  • A huge variety of truck parts and accessories to match your rig’s specs.
  • Whether you’re tackling local hauls or cross-country jobs, these parts are built to take the abuse and keep on running.

    Shop Commercial Truck Parts Online with 4 State Trucks

    From longtime Mack drivers to growing fleets, truckers across the country count on 4 State Trucks for dependable online truck parts and expert service. Whether you’re keeping an old R Model alive or upgrading your Superliner with modern components, we’re here to help with quality you can trust.

    Frequently Asked Questions About Mack Truck Parts

    Will these aftermarket parts fit my specific Mack truck model and year?

    Our Mack truck parts are designed to fit most common models including the Anthem, Pinnacle, Granite, and older CH, CL, and Vision series. However, compatibility can vary by year and specific configuration. We recommend checking the product description for model years listed, or contact our support team with your OEM number for exact fitment verification. Many parts fit multiple years (for example, 2008-2017 Pinnacle models often share components), but critical items like bumpers and hoods may have year-specific variations.

    What's the difference between chrome, stainless steel, and painted finishes for bumpers and exterior parts?

    Chrome-plated steel bumpers offer the classic mirror finish but require regular polishing and can eventually show pitting or rust if the chrome layer is damaged. Stainless steel parts cost more initially but resist corrosion better and maintain their appearance with less maintenance - just periodic cleaning with stainless polish. Painted finishes are the most economical option and can be color-matched to your truck, but may need touch-ups after stone chips or scratches. For harsh winter conditions with road salt, stainless steel typically provides the best long-term value.

    Can I install these parts myself, or do I need a professional shop?

    Many exterior parts like mirror covers, mud flaps, and grille inserts can be installed with basic tools in 30-60 minutes. However, bumpers, hoods, and fenders typically require two people, proper lifting equipment, and alignment expertise. Bumper installations often need bracket adjustments and may require drilling new mounting holes. We provide installation instructions when available, but for major components, we recommend professional installation to ensure proper fit and maintain warranty coverage. Labor typically runs 2-4 hours for bumper swaps at most truck shops.

    Are aftermarket parts as durable as OEM Mack parts?

    Quality varies significantly among aftermarket manufacturers. Our premium aftermarket partners use similar gauge steel and manufacturing processes as OEM parts, often at 30-50% less cost. Look for parts with specified steel thickness (16-gauge or thicker for bumpers), proper drainage holes to prevent rust, and reinforced mounting points. While OEM parts guarantee exact fit, many of our aftermarket options meet or exceed OEM durability standards. Check product reviews and warranty terms - reputable aftermarket parts typically include 1-3 year warranties against defects.

    What should I know about DEF tank covers, battery box covers, and other specific Mack components?

    These truck-specific parts often have unique mounting systems that changed across model years. DEF tank covers for 2011-2015 Mack trucks use different brackets than 2016+ models. Battery box dimensions vary between daycab and sleeper configurations. When ordering electrical components like headlights or marker lights, verify voltage requirements (12V vs 24V systems). For air intake components, confirm whether you have a vertical or horizontal air cleaner setup. Including your OEM or calling with your truck's specifics helps ensure you receive the correct variation.


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