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Mack RD Trucks

Shop for aftermarket Mack RD truck parts (1979 – 2004) to repair, replace, and refurbish your heavy-duty vocational rig. We sell replacement and aftermarket parts for popular Mack RD models, including the RD600, RD688, RD688S, RD690, and RD690S. Source collision-replacement parts, customize the exterior, or add interior cab accessories to refurbish your truck at 4 State Trucks.
  • Product
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • Load Spring Replaces E9410, E-11496, 49377, 49377000, 49377-000, 60879, 60879000, 60879-000, 60879000L, 60879-000L, 400060879000L, 4000-60879000L, 1138983, 8HS640, 1348, 21921 For Hendrickson Suspension

    Load Spring Replaces E9410, E-11496, 49377, 49377000, 49377-000, 60879, 60879000, 60879-000, 60879000L, 60879-000L, 400060879000L, 4000-60879000L, 1138983, 8HS640, 1348, 21921 For Hendrickson Suspension

    AFTERMARKET

    $213.99
    5.625/ 6.875 X 5.25 Inch Load Spring W/ 0.438 Inch Bolt HoleEnsure your Hendrickson suspension operates at peak performance with this premium Load Spring. Top plate length 5.625 inches, bottom plate...
    29-05100134
    SKU:
    29-05100134
    Width Options:
    6 5/8 Inch
    Product Type:
    Frame & Chassis
    Length Options:
    5 5/8 Inch
    Height Options:
    5 Inch
    Make:
    Universal Items
    $213.99
    Qty in Cart: 0
    Price:
    $213.99
    Subtotal:
  • Air Bag Bracket Replaces 3897, 6030, WC13583897, 2012301

    Air Bag Bracket Replaces 3897, 6030, WC13583897, 2012301

    AUTOMANN USA

    $19.08
    3.00 X 2.44 Inch Air Bag Bracket W/ 0.59 Inch Mounting HoleDesigned for durability and performance, this Air Bag Bracket ensures rear suspension stability on Reyco/Transpro-equipped trucks. It helps...
    29-05100195
    SKU:
    29-05100195
    Product Type:
    Frame & Chassis
    Width Options:
    3 Inch
    Make:
    Universal Items
    $19.08
    Qty in Cart: 0
    Price:
    $19.08
    Subtotal:
  • Front Of Rear Hanger Replaces E9386, E-9386, 4C4O5340NA, 4C4Z5340NA, 58425001, 58425-001, R309386 For Hendrickson Suspension

    Front Of Rear Hanger Replaces E9386, E-9386, 4C4O5340NA, 4C4Z5340NA, 58425001, 58425-001, R309386 For Hendrickson Suspension

    AFTERMARKET

    $179.99
    Front Of Rear Hanger For HAS, HFS, HTS SeriesPut stability back into your suspension system with this Front of Rear Hanger engineered for Hendrickson HAS, HFS, and HTS series applications. This...
    29-05100187
    SKU:
    29-05100187
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $179.99
    Qty in Cart: 0
    Price:
    $179.99
    Subtotal:
  • Load Spring Replaces 15002, E4685, 1515962C1, 25164984, 4QK3366, R304685, 5HR706 For Chalmers Suspension

    Load Spring Replaces 15002, E4685, 1515962C1, 25164984, 4QK3366, R304685, 5HR706 For Chalmers Suspension

    AFTERMARKET

    $293.99
    9.50 X 8.00 Inch Load Spring W/ 2 Inch Bolt SizeThis premium Load Spring is designed for Chalmers suspension systems, supporting 40K to 58K lbs series applications. Replacing OEM numbers 15002,...
    29-05100167
    SKU:
    29-05100167
    Height Options:
    8 Inch
    Diameter Options:
    9 1/2 Inch
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $293.99
    Qty in Cart: 0
    Price:
    $293.99
    Subtotal:
  • Auxiliary Spring Plate Replaces 59191, 591911, 59191000, 59191-000, 59191001, 59191-001, 2586425C1 For Hendrickson HAULMAXX Suspension

    Auxiliary Spring Plate Replaces 59191, 591911, 59191000, 59191-000, 59191001, 59191-001, 2586425C1 For Hendrickson HAULMAXX Suspension

    AFTERMARKET

    $53.99
    Auxiliary Spring PlatePut strength back into your suspension setup with this high-quality Auxiliary Spring Plate for Hendrickson HAULMAXX applications. This auxiliary plate helps support load balance...
    29-05100189
    SKU:
    29-05100189
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $53.99
    Qty in Cart: 0
    Price:
    $53.99
    Subtotal:
  • Restrictor Can Replaces 373029, E7758, 3507134C1, 25171445, 61QK432, R307758 For Chalmers Suspension

    Restrictor Can Replaces 373029, E7758, 3507134C1, 25171445, 61QK432, R307758 For Chalmers Suspension

    AFTERMARKET

    $180.99
    11.625 X 5.125 X 0.173 Inch Restrictor CanMaintain superior heavy-duty suspension performance with this Chalmers Restrictor Can. Built for 20K, 700 Series trucks with a high center of gravity, it is...
    29-05100161
    SKU:
    29-05100161
    Product Type:
    Frame & Chassis
    Height Options:
    5 Inch
    Diameter Options:
    11 1/2 Inch
    Make:
    Universal Items
    $180.99
    Qty in Cart: 0
    Price:
    $180.99
    Subtotal:
  • Adapter Sleeve Replaces 45163, 45163000, 526000C1, 90001002, 3082229 For Holland/Neway Suspension

    Adapter Sleeve Replaces 45163, 45163000, 526000C1, 90001002, 3082229 For Holland/Neway Suspension

    AUTOMANN USA

    $18.50
    2.656 X 2.50 X 0.781 Inch Adapter SleeveThis Holland/Neway Adapter Sleeve is a reliable replacement for OEM parts 45163, 45163000, 526000C1, 90001002, and 3082229. Measuring 2.656 inches overall...
    29-05100144
    SKU:
    29-05100144
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $18.50
    Qty in Cart: 0
    Price:
    $18.50
    Subtotal:
  • Spigot Cap Replaces 800055, E7768, 1515967C1, 800055CS1, R307768, 5HR711 For Chalmers Suspension

    Spigot Cap Replaces 800055, E7768, 1515967C1, 800055CS1, R307768, 5HR711 For Chalmers Suspension

    AFTERMARKET

    $10.03
    2.375/ 4.531 Inch Spigot CapEnsure durable and reliable suspension performance with this high-quality Spigot Cap for Chalmers suspension systems. Designed to replace 800055, E7768, 1515967C1,...
    29-05100162
    SKU:
    29-05100162
    Diameter Options:
    4 1/2 Inch
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $10.03
    Qty in Cart: 0
    Price:
    $10.03
    Subtotal:
  • Hanger W/ 0.91 Inch Offset Replaces E7569, 48598002, 48598-002, 57594002, 57594-002, 57594002L, 57594-002L, 25037416 For Hendrickson Suspension Systems

    Hanger W/ 0.91 Inch Offset Replaces E7569, 48598002, 48598-002, 57594002, 57594-002, 57594002L, 57594-002L, 25037416 For Hendrickson Suspension Systems

    AFTERMARKET

    $137.99
    Hanger W/ 0.91 Inch Offset Used On U/UE/RU/RUE/RT/RTE Series Drive AxleEngineered for precision and strength, this Hendrickson Hanger with a 0.91-inch offset fits U/UE/RU/RUE/RT/RTE series drive...
    29-05100132
    SKU:
    29-05100132
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $137.99
    Qty in Cart: 0
    Price:
    $137.99
    Subtotal:
  • Hanger Replaces E9635A, E-9635A, 470763, 47076-3, 47076003, 47076-003, 485983, 48598-3, 48598003, 48598-003, 57584003, 57584-003, 575943, 57594-3, 57594003, 57594-003, R309635A For Hendrickson Suspension Systems

    Hanger Replaces E9635A, E-9635A, 470763, 47076-3, 47076003, 47076-003, 485983, 48598-3, 48598003, 48598-003, 57584003, 57584-003, 575943, 57594-3, 57594003, 57594-003, R309635A For Hendrickson Suspension Systems

    AFTERMARKET

    $146.99
    Hanger Used On RT/RTE Series Drive AxleRestore heavy-duty suspension reliability with this Hendrickson Hanger for RT/RTE series drive axles. It is engineered with horizontal center-to-center...
    29-05100131
    SKU:
    29-05100131
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $146.99
    Qty in Cart: 0
    Price:
    $146.99
    Subtotal:
  • King Pin Kit Replaces 1008431, R200267 For Dana & Spicer Suspension Systems

    King Pin Kit Replaces 1008431, R200267 For Dana & Spicer Suspension Systems

    AFTERMARKET

    $296.99
    King Pin Kit W/ 1.625 X 9.20 Inch King Pin & Composite BushingsRestore your Dana & Spicer suspension system with this King Pin Kit. Kit includes single draw key king pins, composite bushings,...
    29-05090170
    SKU:
    29-05090170
    Diameter Options:
    1 1/2 Inch
    Length Options:
    9 1/16 Inch
    Product Type:
    Frame & Chassis
    Position:
    Kit Full
    Make:
    Universal Items
    $296.99
    Qty in Cart: 0
    Price:
    $296.99
    Subtotal:
  • King Pin Kit Replaces R201609 For Meritor Suspension Systems

    King Pin Kit Replaces R201609 For Meritor Suspension Systems

    AFTERMARKET

    $248.99
    King Pin Kit W/ 1.794 X 9.016 Inch King Pin & Composite BushingsRestore your Meritor suspension system with this comprehensive King Pin Kit. The kit includes opposite double draw key king pins,...
    29-05090064
    SKU:
    29-05090064
    Product Type:
    Frame & Chassis
    Position:
    Kit Full
    Make:
    Universal Items
    $248.99
    Qty in Cart: 0
    Price:
    $248.99
    Subtotal:
  • King Pin Kit Replaces 28345, ETN328345 For Eaton Suspension Systems

    King Pin Kit Replaces 28345, ETN328345 For Eaton Suspension Systems

    AFTERMARKET

    $430.99
    King Pin Kit W/ 1.873 X 9.06 Inch King Pin & Composite BushingsKeep your Eaton suspension operating efficiently with this high-quality King Pin Kit. Complete with single draw key king pins, composite...
    29-05090155
    SKU:
    29-05090155
    Diameter Options:
    2 Inch
    Product Type:
    Frame & Chassis
    Length Options:
    9 Inch
    Position:
    Kit Full
    Make:
    Universal Items
    $430.99
    Qty in Cart: 0
    Price:
    $430.99
    Subtotal:
  • King Pin Kit Replaces R203018, 7014505, E1460 For Dana & Spicer Suspension Systems

    King Pin Kit Replaces R203018, 7014505, E1460 For Dana & Spicer Suspension Systems

    AUTOMANN USA

    $354.99
    King Pin Kit W/ 1.87 X 9.07 Inch King Pin & Pre-Sized No-Ream Bi-Metal BushingsTake control of your heavy-duty suspension system with this Dana & Spicer King Pin Kit. This kit comes complete with...
    29-05090166
    SKU:
    29-05090166
    Diameter Options:
    2 Inch
    Product Type:
    Frame & Chassis
    Length Options:
    9 Inch
    Position:
    Kit Full
    Make:
    Universal Items
    $354.99
    Qty in Cart: 0
    Price:
    $354.99
    Subtotal:
  • King Pin Kit Replaces 331435 For Dana & Spicer Suspension Systems

    King Pin Kit Replaces 331435 For Dana & Spicer Suspension Systems

    AFTERMARKET

    $404.99
    King Pin Kit W/ 2.045 X 10.07 Inch King Pin & Composite BushingsEnsure smooth steering and reliable suspension with this King Pin Kit for Dana & Spicer systems, replacing part 331435. The kit...
    29-05090059
    SKU:
    29-05090059
    Product Type:
    Frame & Chassis
    Position:
    Kit Full
    Make:
    Universal Items
    $404.99
    Qty in Cart: 0
    Price:
    $404.99
    Subtotal:
  • King Pin Kit Replaces 328343 For Eaton Suspension Systems

    King Pin Kit Replaces 328343 For Eaton Suspension Systems

    AFTERMARKET

    $432.99
    King Pin Kit W/ 1.873 X 9.07 Inch King Pin & Bi-Metal BushingsThis high-quality Eaton King Pin Kit ensures smooth, reliable suspension performance. The kit includes single draw key king pins,...
    29-05090154
    SKU:
    29-05090154
    Product Type:
    Frame & Chassis
    Diameter Options:
    1 1/2 Inch
    Length Options:
    9 Inch
    Make:
    Universal Items
    $432.99
    Qty in Cart: 0
    Price:
    $432.99
    Subtotal:
  • King Pin Kit Replaces 700040, 700040-KIT For Ingersoll/IMT Axle Kits

    King Pin Kit Replaces 700040, 700040-KIT For Ingersoll/IMT Axle Kits

    AFTERMARKET

    $481.99
    King Pin Kit W/ 2.248 X 11.30 Inch King Pin & Bronze BushingsKeep your Ingersoll or IMT axle system performing at its best with this King Pin Kit. Includes opposite double draw key king pins, bronze...
    29-05090055
    SKU:
    29-05090055
    Position:
    Kit Full
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $481.99
    Qty in Cart: 0
    Price:
    $481.99
    Subtotal:
  • King Pin Kit Replaces 328347, ETN328347 For Dana & Spicer Suspension Systems

    King Pin Kit Replaces 328347, ETN328347 For Dana & Spicer Suspension Systems

    AFTERMARKET

    $315.99
    King Pin Kit W/ 1.873 X 9.07 Inch King Pin & Bi-Metal BushingsBuilt for long-lasting performance, this King Pin Kit is a perfect solution for Dana & Spicer suspension systems. It includes same side...
    29-05090061
    SKU:
    29-05090061
    Product Type:
    Frame & Chassis
    Position:
    Kit Full
    Make:
    Universal Items
    $315.99
    Qty in Cart: 0
    Price:
    $315.99
    Subtotal:
  • King Pin Kit Replaces 2505494C91, 8889361440, 88936144, R201319, R201471 For Dana, Spicer & Ridewell Suspension Systems

    King Pin Kit Replaces 2505494C91, 8889361440, 88936144, R201319, R201471 For Dana, Spicer & Ridewell Suspension Systems

    AFTERMARKET

    $323.99
    King Pin Kit W/ 1.794 X 10.41 Inch King Pin & Composite BushingsUpgrade or rebuild your Dana, Spicer, or Ridewell suspension system with this high-quality King Pin Kit. Includes opposite side double...
    29-05090058
    SKU:
    29-05090058
    Position:
    Kit Full
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $323.99
    Qty in Cart: 0
    Price:
    $323.99
    Subtotal:
  • King Pin Kit Replaces K122E, R202001, SKS12205 For Dana & Spicer Suspension Systems

    King Pin Kit Replaces K122E, R202001, SKS12205 For Dana & Spicer Suspension Systems

    AFTERMARKET

    $445.99
    King Pin Kit W/ 1.794 X 9.05 Inch King Pin & Rapid No-Ream BushingsRestore your Dana or Spicer suspension with this durable King Pin Kit. The kit includes single draw key king pins, rapid no-ream...
    29-05090056
    SKU:
    29-05090056
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $445.99
    Qty in Cart: 0
    Price:
    $445.99
    Subtotal:
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Shop Aftermarket Mack RD Truck Parts

Working, old-school big rigs like the Mack RD series endure many years of wear and tear on jobs sites. Over time, Mack RD hardware and components experience high heat and pressure, turning mild components replacements into system-wide repairs. We stock the model-specific mechanical parts to keep your hard-working truck performing day after day:

Cosmetic Aftermarket Upgrades for Mack RD Trucks

Road debris can chip away at the headlights, fenders, mirrors, and even mud flaps over time. That’s why we stock hundreds of exterior Mack RD replacement parts to replace damaged parts. Lastly, you can find decorative custom upgrades to spruce-up the look of your rig, from interior custom dashboards to stainless steel step boxes for easy cab exit and entry.

Frequently Asked Questions About Mack RD Truck Parts

What years and models of Mack RD trucks do your parts fit?

Our Mack RD parts are designed to fit RD600, RD688, and RD690 models manufactured from 1979 through 2004. However, compatibility can vary based on specific configurations and factory options. We recommend checking your OEM or contacting our team with your truck's model year and any special equipment codes to ensure proper fitment before ordering.

Are your Mack RD bumpers made from chrome-plated steel or stainless steel?

We offer both options depending on your needs and budget. Our chrome-plated steel bumpers feature a triple-chrome plating process over heavy-gauge steel for durability and shine. Our stainless steel options are typically 304-grade stainless with a mirror polish finish. Chrome bumpers are more affordable but require regular maintenance, while stainless steel resists corrosion better in harsh conditions but comes at a higher price point.

Do I need special tools or professional installation for Mack RD bumpers?

Most Mack RD bumper installations can be completed with standard shop tools including socket sets, wrenches, and a drill for any additional mounting holes. The bumpers typically weigh between 80-150 pounds, so having a helper or hoist is strongly recommended. Installation usually takes 2-4 hours. Some aftermarket bumpers may require minor modifications to mounting brackets or drilling new holes. Professional installation is recommended if you're not comfortable with heavy lifting or drilling.

What's the difference between OEM-style and aftermarket Mack RD parts?

OEM-style parts are manufactured to match original factory specifications for direct bolt-on replacement. Aftermarket parts may offer enhanced features like additional gauge holes, different styling, or heavier construction but might require modifications during installation. OEM-style parts typically maintain factory warranty compliance, while aftermarket options often provide better value and customization options. Both meet DOT standards when applicable.

How do I maintain chrome parts on my Mack RD to prevent rust and pitting?

Chrome parts require regular maintenance to maintain their appearance, especially in regions using road salt. Wash chrome surfaces weekly with mild soap and water, then dry thoroughly. Apply a quality chrome polish monthly and use a chrome sealant every 3-4 months for added protection. Avoid abrasive cleaners or steel wool which can scratch the chrome. For winter storage or harsh conditions, consider applying a thin coat of WD-40 or similar protectant, then remove before regular use.


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