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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
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  • Price
  • Subtotal
  • Trunnion Collar 8QD43A For Mack

    Trunnion Collar 8QD43A For Mack

    AFTERMARKET

    $582.99
    Replacement Mack Trunnion Collar* High Quality Trunnion Collar* Dimensions:  - 6.50 Inch Width  - 4.375 Inch O.D.  - 3.50 Inch I.D.* Made In USA* Sold Individually* Warranty On Trunnion Collars...
    11-05100034
    SKU:
    11-05100034
    Truck Class:
    Heavy Duty
    Product Type:
    Frame & Chassis
    Make:
    Mack
    Length Options:
    6 1/2 Inch
    $582.99
    Qty in Cart: 0
    Price:
    $582.99
    Subtotal:
  • Brass Trunnion Washer 3.5 Inch ID For Mack

    Brass Trunnion Washer 3.5 Inch ID For Mack

    AUTOMANN USA

    $24.26
    Trunnion Brass Washer Replaces 25167286,35AX688, 43QK116A, R303698, C71626B* High Quality Trunnion* Brass* Dimensions:  - 3-1/2 Inch Bar  - Outside Diameter- 5.25 Inch* Camel Back* Sold Individually*...
    11-05100039
    SKU:
    11-05100039
    Product Type:
    Frame & Chassis
    Truck Class:
    Heavy Duty
    Make:
    Mack
    Diameter Options:
    3 1/2 Inch
    Material Options:
    Brass
    $24.26
    Qty in Cart: 0
    Price:
    $24.26
    Subtotal:
  • Doctor Preload Bearing FE Steer Tool Replaces Mer415347

    Doctor Preload Bearing FE Steer Tool Replaces Mer415347

    AFTERMARKET

    $1,757.99
    Wheel Bearing Adjustment Tool* High Quality Preload Tool* Made In USA* Sold Individually* Warranty On Preload Tools Against Defects In Workmanship & Material From Date Of Purchase*** High Quality...
    09-21000138
    SKU:
    09-21000138
    Product Type:
    Tools
    Make:
    Universal Items
    $1,757.99
    Qty in Cart: 0
    Price:
    $1,757.99
    Subtotal:
  • 3- 5/16 Inch -12 Trunnion Shaft Nut For Mack

    3- 5/16 Inch -12 Trunnion Shaft Nut For Mack

    AUTOMANN USA

    $25.99
    Trunnion Shaft Nut Replaces 25163838. 25QJ223. R303700. C71619B* High Quality Trunnion Nut* Dimensions:  - 3 1/2 Inch Shaft  - 3 5/16 Inch-12 Threads* Sold Individually* Warranty On Trunnion Nuts...
    11-05100035
    SKU:
    11-05100035
    Product Type:
    Frame & Chassis
    Truck Class:
    Heavy Duty
    Make:
    Mack
    $25.99
    Qty in Cart: 0
    Price:
    $25.99
    Subtotal:
  • Steal Trunnion Cap 2.5 Inch Deep 25164367, 97QL3101 For Mack

    Steal Trunnion Cap 2.5 Inch Deep 25164367, 97QL3101 For Mack

    AFTERMARKET

    $48.22
    Replacement Mack Trunnion CapThis Mack trunnion cap is made of steel and measures 2.5 inches deep, featuring 6 mounting holes to secure it in place.* High Quality Trunnion Cap* Steel* Dimensions:  -...
    11-05100026
    SKU:
    11-05100026
    Truck Class:
    Heavy Duty
    Product Type:
    Frame & Chassis
    Make:
    Mack
    Material Options:
    Steel
    Diameter Options:
    7 Inch
    Height Options:
    2 1/2 Inch
    $48.22
    Qty in Cart: 0
    Price:
    $48.22
    Subtotal:
  • 3/8-Inch Drive Metric Deep Impact Socket Set - 13 Piece

    3/8-Inch Drive Metric Deep Impact Socket Set - 13 Piece

    AFTERMARKET

    $92.99
    Impact Socket Set- 3/8 Inch Drive With 7mm to 19mm Sockets* High Quality Impact Socket Set* 3/8 Inch Drive* 13 Sockets 7 MM - 19 MM* Metric Deep Impact Sockets* Made In USA* Sold Individually*...
    09-21000108
    SKU:
    09-21000108
    Product Type:
    Tools
    Make:
    Universal Items
    $92.99
    Qty in Cart: 0
    Price:
    $92.99
    Subtotal:
  • Air Spring Rolling Lobe 58786002, 64917002, 57QL417M For Hendrickson / Mack

    Air Spring Rolling Lobe 58786002, 64917002, 57QL417M For Hendrickson / Mack

    AFTERMARKET

    $232.99
    Replacement Air Spring Rolling Lobe* High Quality Air Spring* Rolling Lobe Type* Bumper: Yes* Top Bracket: Yes* 5900 Lb Load At 80 PSI* 7500 Lb Load At 100 PSI* 57 CPM Natural Frequency* Top Plate: ...
    11-05100027
    SKU:
    11-05100027
    Product Type:
    Frame & Chassis
    Truck Class:
    Heavy Duty
    Make:
    Mack
    Style Options:
    Rolling Lobe
    $232.99
    Qty in Cart: 0
    Price:
    $232.99
    Subtotal:
  • Trunnion 25130252. 39QK24 For Mack 4 Inch Shaft & 5 Inch Spring

    Trunnion 25130252. 39QK24 For Mack 4 Inch Shaft & 5 Inch Spring

    AFTERMARKET

    $436.99
    Replacement TrunnionThis replacement trunnion fits Mack SS58 (55K) Camelback rear suspensions.* High Quality Trunnion* Dimensions:  - 4 Inch Shaft  - 5 Inch Wide Spring  - 9 Inch C To C* Made In USA*...
    11-05100022
    SKU:
    11-05100022
    Truck Class:
    Heavy Duty
    Product Type:
    Frame & Chassis
    Make:
    Mack
    $436.99
    Qty in Cart: 0
    Price:
    $436.99
    Subtotal:
  • Trunnion 39QK325, 25130253 For Mack 4 Inch Shaft & 4 Inch Spring

    Trunnion 39QK325, 25130253 For Mack 4 Inch Shaft & 4 Inch Spring

    AFTERMARKET

    $437.99
    Economy Replacement Trunnion* High Quality Trunnion* Dimensions:  - 4 Inch Shaft   - 4 Inch Spring  - 7.5 Inch C To C * Made In USA* Sold Individually* Warranty On Trunnions Against Defects In...
    11-05100032
    SKU:
    11-05100032
    Product Type:
    Frame & Chassis
    Truck Class:
    Heavy Duty
    Make:
    Mack
    $437.99
    Qty in Cart: 0
    Price:
    $437.99
    Subtotal:
  • Small ID Hose Cutter

    Small ID Hose Cutter

    AUTOMANN USA

    $20.33
    Straight Blade Cutter for Small HosesThis handheld hose cutter makes cutting small rubber hoses quick and easy. Simply place any hose up to 1.5 inches into the tool and squeeze the handle to make a...
    09-21000104
    SKU:
    09-21000104
    Product Type:
    Tools
    Make:
    Universal Items
    $20.33
    Qty in Cart: 0
    Price:
    $20.33
    Subtotal:
  • Trunnion Stand Bracket 25129644. 97QL590M For Mack 32-1/4 Inch Wide Standard Frames

    Trunnion Stand Bracket 25129644. 97QL590M For Mack 32-1/4 Inch Wide Standard Frames

    AFTERMARKET

    $8,406.99
    Mack Heavy Duty Replacement Trunnion StandReplace your worn Mack SS50 Camelback trunnion stand with this heavy-duty unit built for 46,000 lb suspensions. Designed for 4 inch bars and springs, this...
    11-05100023
    SKU:
    11-05100023
    Product Type:
    Frame & Chassis
    Truck Class:
    Heavy Duty
    Make:
    Mack
    $8,406.99
    Qty in Cart: 0
    Price:
    $8,406.99
    Subtotal:
  • Trunnion Stand Bracket 25122949, 25133830 For Mack

    Trunnion Stand Bracket 25122949, 25133830 For Mack

    AFTERMARKET

    $3,041.99
    Trunnion Stand Replacement* High Quality Trunnion Stand* 3 1/2 Inch Bar Diameter* Square Bolt Pattern* (2) Collars* Note- This Kit Has 1.0 Inch Frame Holes If OEM Is 7/8 Inch Chassis* Reaming May Be...
    11-05100025
    SKU:
    11-05100025
    Product Type:
    Frame & Chassis
    Truck Class:
    Heavy Duty
    Make:
    Mack
    Diameter Options:
    3 1/2 Inch
    $3,041.99
    Qty in Cart: 0
    Price:
    $3,041.99
    Subtotal:
  • Universal Slack Adjuster Tool

    Universal Slack Adjuster Tool

    AUTOMANN USA

    $37.10
    Slack Adjuster Tool UniversalThis handy all-in-one slack adjuster wrench works on most trucks you will come across. I has four different sizes built right in - 5/16" square, 7/16" hex, 9/16" hex, and...
    09-21000099
    SKU:
    09-21000099
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $37.10
    Qty in Cart: 0
    Price:
    $37.10
    Subtotal:
  • 10,000 PSI Foot Operated Air/Hydraulic Pump

    10,000 PSI Foot Operated Air/Hydraulic Pump

    AFTERMARKET

    $1,560.99
    Air Hydraulic Pump 10000 PSI At 100 PSI* High Quality Pump* Ideal All-Around Power Source Develops 10000 PSI At 100 PSI Air* 3/8 Inch NPTF Oil Port* 98 Cu. Inches Of Usable Oil* Two-Stage Release...
    09-21000115
    SKU:
    09-21000115
    Make:
    Universal Items
    Product Type:
    Tools
    $1,560.99
    Qty in Cart: 0
    Price:
    $1,560.99
    Subtotal:
  • Insulator Box 52QK434P3 For Mack

    Insulator Box 52QK434P3 For Mack

    AFTERMARKET

    $348.99
    7.5 Inch Deep Insulator Box For 5 Inch Spring* High Quality Insulator Box* Dimensions:  - 5.0 Inch Spring  - 7 1/2 Inch Depth  - 8.687 Inch C To C* Made In USA* Sold Individually* Warranty On...
    11-05100017
    SKU:
    11-05100017
    Product Type:
    Frame & Chassis
    Truck Class:
    Heavy Duty
    Make:
    Mack
    $348.99
    Qty in Cart: 0
    Price:
    $348.99
    Subtotal:
  • Angled Retaining Ring Pliers

    Angled Retaining Ring Pliers

    AUTOMANN USA

    $11.43
    Retaining Ring Pliers Use With 209.4XXX Series Unitized Spindle Nuts w/Retaining RingsThese specialized pliers are designed to remove and install retaining rings on 209.4XXX series unitized spindle...
    09-21000094
    SKU:
    09-21000094
    Product Type:
    Tools
    Make:
    Universal Items
    $11.43
    Qty in Cart: 0
    Price:
    $11.43
    Subtotal:
  • 6 Inch Low Profile Fuel Filter Wrench For Davco Models 382 & 84

    6 Inch Low Profile Fuel Filter Wrench For Davco Models 382 & 84

    AUTOMANN USA

    $29.22
    Low Profile Wrench For 6 Inch OD Fuel Filters* High Quality Wrench* 6 Inch* Low Profile Design For Better Clearance* Sold Individually* Warranty On Wrenches Against Defects In Workmanship & Material...
    09-21000116
    SKU:
    09-21000116
    Product Type:
    Tools
    Length Options:
    6 Inch
    Make:
    Universal Items
    $29.22
    Qty in Cart: 0
    Price:
    $29.22
    Subtotal:
  • 3/4 To 2-1/2 Inch Cylinder Range Brake Hone - Repairs Scratched Cylinder Walls

    3/4 To 2-1/2 Inch Cylinder Range Brake Hone - Repairs Scratched Cylinder Walls

    AUTOMANN USA

    $19.07
    Brake Cylinder Hone With Adjustable TensionFix your brakes like a pro with this easy-to-use Brake Cylinder Hone Tool. This tough tool smooths out wheel cylinders quickly, works on all standard sizes...
    09-21000106
    SKU:
    09-21000106
    Product Type:
    Tools
    Length Options:
    1 1/16 Inch
    Make:
    Universal Items
    $19.07
    Qty in Cart: 0
    Price:
    $19.07
    Subtotal:
  • Zippered Document Portfolio

    Zippered Document Portfolio

    AUTOMANN USA

    $26.64
    Document Organizer Portfolio With ZipperKeep your important papers safe and organized in this multi-pocket portfolio.* High Quality Document Portfolio* With Zipper* Has Several Pockets To Carry...
    09-21070001
    SKU:
    09-21070001
    Product Type:
    Tools
    Make:
    Universal Items
    $26.64
    Qty in Cart: 0
    Price:
    $26.64
    Subtotal:
  • 1-3/4 to 4 Inch Filter Pliers

    1-3/4 to 4 Inch Filter Pliers

    AUTOMANN USA

    $18.42
    Small Oil Filter Pliers* High Quality Filter Pliers* 1-3/4 Inch To 4 Inch* Sold Individually* Warranty On Filter Pilers Against Defects In Workmanship & Material From Date Of Purchase*** High Quality...
    09-21000090
    SKU:
    09-21000090
    Product Type:
    Tools
    Make:
    Universal Items
    $18.42
    Qty in Cart: 0
    Price:
    $18.42
    Subtotal:
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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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