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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
  • 2.5 Inch LED Marker & Clearance Light W/ Reflex

    2.5 Inch LED Marker & Clearance Light W/ Reflex

    OPTRONICS

    $4.07
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models of Trucks2.5 Inch Red LED Marker & Clearance Light W/ Reflex2.5 Inch Marker & Clearance Light W/ Reflex- Red*...
    PPR_299320
    SKU:
    PPR_299320
    Diameter Options:
    2 1/2 Inch
    Product Type:
    Lighting
    Style Options:
    LED
    Color:
    Red
    Color:
    Amber
    Material Options:
    Plastic/Poly
    Shape Options:
    Round
    Make:
    Universal Items
    Type Options:
    Surface Mount
    $4.07
    Qty in Cart: 0
    Price:
    $4.07
    Subtotal:
  • 3/4 Inch Round Marker/ Clearance LED Light W/ 2 .180 Bullets

    3/4 Inch Round Marker/ Clearance LED Light W/ 2 .180 Bullets

    PETERSON MFG

    $16.40
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models of Trucks3/4 Inch Red Round Marker/ Clearance LED Light W/ 2 .180 Bullets3/4 Inch Round Marker/ Clearance LED...
    PPR_299322
    SKU:
    PPR_299322
    Style Options:
    LED
    Color:
    Red
    Color:
    Amber
    Product Type:
    Lighting
    Shape Options:
    Round
    Diameter Options:
    3/4 Inch
    Make:
    Universal Items
    Style Options:
    Bullet
    Material Options:
    Plastic/Poly
    Type Options:
    Grommet Mount
    Diameter Options:
    1 Inch
    $16.40
    Qty in Cart: 0
    Price:
    $16.40
    Subtotal:
  • 1/2 Inch- 13 Thread On 3 Skull Shift Knob

    1/2 Inch- 13 Thread On 3 Skull Shift Knob

    UNITED PACIFIC

    $41.99 - $53.99
    Choose Option(s) to see description.Chrome 3D Stacked Skull Shift Knob Thread On W/O Adapter5.625 Inch Thread On 3D Stacked Skull Shift Knob Chrome* High Quality Shift Knob* Made Of Aluminum* Triple...
    PPR_299328
    SKU:
    PPR_299328
    Color:
    Blue
    Color:
    Red
    Color:
    Black
    Diameter Options:
    1/2 Inch
    Color:
    Orange
    Color:
    Purple
    Style Options:
    Thread On
    Color:
    White
    Color:
    Yellow
    Product Type:
    Interior
    Material Options:
    Aluminum
    Color:
    Green
    Color:
    Silver
    Location:
    Made In USA
    Make:
    Universal Items
    Height Options:
    5 1/2 Inch
    Width Options:
    1 1/4 Inch
    Type Options:
    Thread On
    Finish Options:
    Chrome-Plated
    $41.99 - $53.99
    Qty in Cart: 0
    Price:
    $41.99 - $53.99
    Subtotal:
  • 6- Hole Axle Flange Gasket

    6- Hole Axle Flange Gasket

    AUTOMANN USA

    $2.91
    5.950 ID X 7.500 OD X 6.750 Inch Hub GasketWhen it comes to axle integrity, the 6-Hole Axle Flange Gasket delivers the durability and precision your truck demands. Featuring six 0.350-inch holes and...
    29-20200059
    SKU:
    29-20200059
    Shape Options:
    Round
    Product Type:
    Wheels
    Make:
    Universal Items
    Diameter Options:
    7 1/2 Inch
    $2.91
    Qty in Cart: 0
    Price:
    $2.91
    Subtotal:
  • Seat Air Bag Replaces 7208, W028127208, W023587208

    Seat Air Bag Replaces 7208, W028127208, W023587208

    AUTOMANN USA

    $46.63
    Sleeve Type Seat Air BagImprove seat suspension and driver comfort with the Seat Air Bag, a high-quality sleeve-type replacement for 7208, W028127208, and W023587208. The top plate includes a...
    29-19200024
    SKU:
    29-19200024
    Product Type:
    Seats
    Make:
    Universal Items
    Height Options:
    13 1/2 Inch
    Ready To Ship:
    Yes
    $46.63
    Qty in Cart: 0
    Price:
    $46.63
    Subtotal:
  • 6- Hole Hub Gasket Replaces 2208N430, GKT009, 453795, 120MF315

    6- Hole Hub Gasket Replaces 2208N430, GKT009, 453795, 120MF315

    AUTOMANN USA

    $1.33
    4.800 ID X 6.275 OD X 5.550 Inch Hub GasketOptimize the longevity and performance of your wheel assembly with the 6-Hole Hub Gasket, a reliable replacement for 2208N430, GKT009, 453795, and 120MF315...
    29-20200058
    SKU:
    29-20200058
    Product Type:
    Wheels
    Shape Options:
    Round
    Make:
    Universal Items
    Diameter Options:
    6 1/4 Inch
    Ready To Ship:
    Yes
    $1.33
    Qty in Cart: 0
    Price:
    $1.33
    Subtotal:
  • CSM Half Fender Mounting Bracket For Flex Air & AG380 Suspension

    CSM Half Fender Mounting Bracket For Flex Air & AG380 Suspension

    CHROME SHOP MAFIA

    $487.99
    Half Fender Mounting Bracket By Chrome Shop MafiaSecure your truck's half fenders with the CSM Half Fender Mounting Bracket for Flex Air and AG380 suspensions. Chrome Shop Mafia engineered this...
    29-1110050
    SKU:
    29-1110050
    Product Type:
    Rear Fenders
    Make:
    Universal Items
    Type Options:
    Half Fender
    Style Options:
    Flex Air Suspension
    $487.99
    Qty in Cart: 0
    Price:
    $487.99
    Subtotal:
  • 5 Inch Steel Flat U- Bolt Saddle Clamp Replaces P206603, RO5, FB-5ZN, FB5ZN, EC50UZP, 35757

    5 Inch Steel Flat U- Bolt Saddle Clamp Replaces P206603, RO5, FB-5ZN, FB5ZN, EC50UZP, 35757

    AUTOMANN USA

    $8.62
    5 Inch U- Bolt Saddle ClampExperience long-lasting performance and secure mounting with the 5 Inch Steel Flat U-Bolt Saddle Clamp, designed for 5-inch diameter pipes and tubing. Its zinc-coated steel...
    29-08000038
    SKU:
    29-08000038
    Diameter Options:
    5 Inch
    Material Options:
    Steel
    Product Type:
    Exhaust
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $8.62
    Qty in Cart: 0
    Price:
    $8.62
    Subtotal:
  • EGR Cooler For Cummins ISX Engine Replaces 2869133, 2878071, 2881783, 2881783NX, 2682806, 2682986, 3683069, 36833253, 3683435, 4089166, 4089436, 4952490, 4956008, 4956008NX

    EGR Cooler For Cummins ISX Engine Replaces 2869133, 2878071, 2881783, 2881783NX, 2682806, 2682986, 3683069, 36833253, 3683435, 4089166, 4089436, 4952490, 4956008, 4956008NX

    AFTERMARKET

    $1,584.99
    Cummins ISX EGR CoolerImprove engine longevity and emissions performance with the EGR Cooler for Cummins ISX Engine, compatible with 1st Generation ISX engines 2003-2007. Designed to replace multiple...
    29-07110009
    SKU:
    29-07110009
    Style Options:
    Cummins
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $1,584.99
    Qty in Cart: 0
    Price:
    $1,584.99
    Subtotal:
  • 8 Inch Clutch Grease Hose Replaces SPCLT008P

    8 Inch Clutch Grease Hose Replaces SPCLT008P

    AFTERMARKET

    $18.22
    Clutch Grease HoseDeliver consistent clutch performance with the 8 Inch Clutch Grease Hose, a high-quality replacement for SPCLT008P. Equipped with 1/8 Inch - 27 NPT ends, one end 0.050 Inch A/F and...
    29-07050024
    SKU:
    29-07050024
    Product Type:
    Engine Parts
    Make:
    Universal Items
    Length Options:
    8 Inch
    $18.22
    Qty in Cart: 0
    Price:
    $18.22
    Subtotal:
  • CSM Half Fender Mounting Bracket For Lo Air Leaf & AG400L Suspension

    CSM Half Fender Mounting Bracket For Lo Air Leaf & AG400L Suspension

    CHROME SHOP MAFIA

    $299.99
    Half Fender Mounting Bracket By Chrome Shop MafiaThe CSM Half Fender Mounting Bracket is a precision-engineered bracket set by Chrome Shop Mafia, designed for mounting 1/2 fenders on Lo Air Leaf and...
    29-1110049
    SKU:
    29-1110049
    Product Type:
    Rear Fenders
    Make:
    Universal Items
    Style Options:
    Air Leaf Suspension
    Type Options:
    Half Fender
    $299.99
    Qty in Cart: 0
    Price:
    $299.99
    Subtotal:
  • U- Joint Strap Kit Replaces 205-70-19, N2057018X, 250N7018X, 2500675C91

    U- Joint Strap Kit Replaces 205-70-19, N2057018X, 250N7018X, 2500675C91

    AUTOMANN USA

    $25.66
    U- Joint Strap Kit For SPL250 SeriesKeep your driveshaft secure with this high-strength U-Joint Strap Kit, engineered for 205-70-19, N2057018X, 250N7018X, and 2500675C91. Featuring two durable caps...
    29-05210019
    SKU:
    29-05210019
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    Position:
    Kit Full
    $25.66
    Qty in Cart: 0
    Price:
    $25.66
    Subtotal:
  • Pressure Protection Valve Replaces HDXKN20541, GTA20541, KN20541, N30103BB, 20QE3218M, RKN20541, TV20541

    Pressure Protection Valve Replaces HDXKN20541, GTA20541, KN20541, N30103BB, 20QE3218M, RKN20541, TV20541

    AUTOMANN USA

    $21.08
    Pressure Protection ValveExperience consistent air pressure control with this robust Pressure Protection Valve, replacing HDXKN20541, GTA20541, KN20541, N30103BB, 20QE3218M, RKN20541, and TV20541...
    29-051700039
    SKU:
    29-051700039
    Rating:
    65 PSI
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    $21.08
    Qty in Cart: 0
    Price:
    $21.08
    Subtotal:
  • 4.06 To 4.38 Inch Stainless Steel T- Bolt Clamp Replaces B92240406, 32863, HTS406

    4.06 To 4.38 Inch Stainless Steel T- Bolt Clamp Replaces B92240406, 32863, HTS406

    AUTOMANN USA

    $11.94
    4.06 To 4.38 Inch T- Bolt ClampSecure your hose connections with this premium 4.06 to 4.38 Inch Stainless Steel T-Bolt Clamp, a reliable replacement for B92240406, 32863, and HTS406. Constructed from...
    29-070200029
    SKU:
    29-070200029
    Product Type:
    Engine Parts
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    Width Options:
    3/4 Inch
    $11.94
    Qty in Cart: 0
    Price:
    $11.94
    Subtotal:
  • 5 Inch Aluminized Steel Pre- Formed Band Clamp Replaces K15067, N3550PLAG, W33970

    5 Inch Aluminized Steel Pre- Formed Band Clamp Replaces K15067, N3550PLAG, W33970

    AUTOMANN USA

    $10.02
    5 Inch Pre- Formed Band ClampBuilt for durability and performance, the 5 Inch Aluminized Steel Pre-Formed Band Clamp secures exhaust connections on 5-inch pipes with ease. Its lap joint and stepped...
    29-08000037
    SKU:
    29-08000037
    Shape Options:
    Round
    Diameter Options:
    5 Inch
    Product Type:
    Exhaust
    Material Options:
    Aluminized Steel
    Make:
    Universal Items
    $10.02
    Qty in Cart: 0
    Price:
    $10.02
    Subtotal:
  • 12V Air Dryer Assembly Replaces R955300, 4006110590

    12V Air Dryer Assembly Replaces R955300, 4006110590

    AUTOMANN USA

    $172.99
    SS1200P Type Air Dryer AssemblyKeep your truck's air system in peak condition with the 12V Air Dryer Assembly, a premium replacement for R955300 and 4006110590. This SS1200P assembly with external...
    29-051700037
    SKU:
    29-051700037
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    $172.99
    Qty in Cart: 0
    Price:
    $172.99
    Subtotal:
  • Air Spring Rolling Lobe With Plastic Base Replaces W013589372, W014559372, W01M589372, 58520002, 585202, 64489002, 64489-2, 87QL57M, 25173616, 8083871, 68612, 910-18.5P095

    Air Spring Rolling Lobe With Plastic Base Replaces W013589372, W014559372, W01M589372, 58520002, 585202, 64489002, 64489-2, 87QL57M, 25173616, 8083871, 68612, 910-18.5P095

    AUTOMANN USA

    $299.99
    Replacement Air Spring Rolling LobeAchieve consistent suspension performance with the Air Spring Rolling Lobe with Plastic Base, engineered for precision, strength, and durability. This replacement...
    29-051000027
    SKU:
    29-051000027
    Diameter Options:
    10 Inch
    Material Options:
    Plastic/Poly
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $299.99
    Qty in Cart: 0
    Price:
    $299.99
    Subtotal:
  • Relay Valve Replaces EMDKN28510N, KN28510X, 5396KN28510, KN28510, N30108BL, 034057

    Relay Valve Replaces EMDKN28510N, KN28510X, 5396KN28510, KN28510, N30108BL, 034057

    AUTOMANN USA

    $38.75
    RG2 Type Relay ValveTake control of your air brake system with confidence using this robust RG2 Relay Valve. Built for heavy-duty trucks, it features a 5.6 PSI crack pressure and a 1.5-inch...
    29-051700038
    SKU:
    29-051700038
    Diameter Options:
    1/2 Inch
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $38.75
    Qty in Cart: 0
    Price:
    $38.75
    Subtotal:
  • Transmission Input Shaft Assembly Replaces E6HZ7017C, FULS1659, 1000CLAS1659, 3088S1659, A3297Y1351, 1091660

    Transmission Input Shaft Assembly Replaces E6HZ7017C, FULS1659, 1000CLAS1659, 3088S1659, A3297Y1351, 1091660

    AFTERMARKET

    $65.99
    Input Shaft Assembly For Fuller RT Series TransmissionsThe Transmission Input Shaft Assembly offers superior quality and reliability for Fuller RT series transmissions, replacing E6HZ7017C, FULS1659,...
    29-07050025
    SKU:
    29-07050025
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $65.99
    Qty in Cart: 0
    Price:
    $65.99
    Subtotal:
  • On Sale
    Limited Quantity Available
    King Pin Kit W/ No Ream Spiral Bushings Replaces KH931L, R202011

    King Pin Kit W/ No Ream Spiral Bushings Replaces KH931L, R202011

    AUTOMANN USA

    Now: $325.49
    Was: $464.99
    No Ream Spiral Bushing King Pin KitRestore your truck's steering precision with the King Pin Kit W/ No-Ream Spiral Bushings, built for durability, accuracy, and heavy-duty operation. Designed to...
    29-050900045
    SKU:
    29-050900045
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    Ready To Ship:
    Yes
    Position:
    Kit Full
    Diameter Options:
    2 Inch
    Length Options:
    11 Inch
    Now: $325.49
    Was: $464.99
    Qty in Cart: 0
    Price:
    Now: $325.49
    Was: $464.99
    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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