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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
  • Hydraulic Hose Fitting JIC 37 Male

    Hydraulic Hose Fitting JIC 37 Male

    AUTOMANN USA

    $9.71 - $16.06
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksHydraulic Hose Fitting JIC 37 Male Thread 5/8 ID X 7/8 Inch - 14JIC 37 Male Hydraulic Hose Fitting...
    PPR_299460
    SKU:
    PPR_299460
    Diameter Options:
    5/8 Inch
    Diameter Options:
    1/4 Inch
    Length Options:
    2 3/4 Inch
    Product Type:
    Cargo Control
    Diameter Options:
    3/8 Inch
    Length Options:
    2 Inch
    Length Options:
    2 1/16 Inch
    Make:
    Universal Items
    $9.71 - $16.06
    Qty in Cart: 0
    Price:
    $9.71 - $16.06
    Subtotal:
  • Hydraulic Hose Fitting ORFS Female 45 Thread

    Hydraulic Hose Fitting ORFS Female 45 Thread

    AFTERMARKET

    $47.11 - $51.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksHydraulic Hose Fitting ORFS Female 45 Thread 1/2 ID X 1 Inch - 1445 Degree Female Hydraulic Hose ORFS...
    PPR_299451
    SKU:
    PPR_299451
    Product Type:
    Cargo Control
    Degree Options:
    45
    Diameter Options:
    1/2 Inch
    Style Options:
    Elbow
    Make:
    Universal Items
    Diameter Options:
    3/8 Inch
    Length Options:
    1 1/4 Inch
    $47.11 - $51.99
    Qty in Cart: 0
    Price:
    $47.11 - $51.99
    Subtotal:
  • Hydraulic Hose Fitting JIC 37 Female 90 Degree Elbow

    Hydraulic Hose Fitting JIC 37 Female 90 Degree Elbow

    AUTOMANN USA

    $22.02 - $27.84
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksHydraulic Hose Fitting JIC 37 Female 90 Thread 1/2 ID X 3/4 Inch - 1690 Degree Female Hydraulic Hose...
    PPR_299456
    SKU:
    PPR_299456
    Degree Options:
    90
    Diameter Options:
    1/4 Inch
    Product Type:
    Cargo Control
    Make:
    Universal Items
    Length Options:
    2 Inch
    Diameter Options:
    1/2 Inch
    Style Options:
    Swivel
    Length Options:
    2 1/4 Inch
    Length Options:
    3 Inch
    $22.02 - $27.84
    Qty in Cart: 0
    Price:
    $22.02 - $27.84
    Subtotal:
  • Safety Decals W/ Style Options

    Safety Decals W/ Style Options

    AUTOMANN USA

    $2.30 - $10.40
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models of TrucksCaution Wide Turns Decal11.75 X 17.25 Inch Caution Wide Turns Decal* High Quality Decal* "Caution Wide...
    PPR_299447
    SKU:
    PPR_299447
    Color:
    Yellow
    Height Options:
    1 1/2 Inch
    Height Options:
    6 Inch
    Product Type:
    Air, Electrical, & Safety
    Width Options:
    27 Inch
    Height Options:
    11 1/2 Inch
    Width Options:
    17 1/4 Inch
    Width Options:
    5 Inch
    Color:
    White
    Height Options:
    12 Inch
    Width Options:
    24 Inch
    Make:
    Universal Items
    $2.30 - $10.40
    Qty in Cart: 0
    Price:
    $2.30 - $10.40
    Subtotal:
  • Steel Adapter JIC/ NPTF Male Hose Fitting

    Steel Adapter JIC/ NPTF Male Hose Fitting

    AUTOMANN USA

    $1.83 - $5.74
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models of TrucksSteel Adapter JIC/ NPTF Male Replaces 70365-0808, G60490-0808, G604900808, JCM08-NPM081/2 Inch-14 X 3/4...
    PPR_299452
    SKU:
    PPR_299452
    Diameter Options:
    3/8 Inch
    Length Options:
    1 5/8 Inch
    Length Options:
    1 1/2 Inch
    Length Options:
    2 Inch
    Length Options:
    1 1/4 Inch
    Material Options:
    Steel
    Length Options:
    1 3/4 Inch
    Product Type:
    Cargo Control
    Make:
    Universal Items
    $1.83 - $5.74
    Qty in Cart: 0
    Price:
    $1.83 - $5.74
    Subtotal:
  • Yellow 2 Inch X 30 FT Ratchet Strap - 3335 Lbs Working Load

    Yellow 2 Inch X 30 FT Ratchet Strap - 3335 Lbs Working Load

    AUTOMANN USA

    $20.94 - $27.08
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models of TrucksYellow 2 Inch X 30 FT J-Hook Ratchet Strap- 3335 Lbs Working Load2 Inch X 30 FT Yellow J-Hook Ratchet...
    PPR_299448
    SKU:
    PPR_299448
    Product Type:
    Cargo Control
    Rating:
    10000 LBS
    Color:
    Yellow
    Width Options:
    2 Inch
    Length Options:
    360 Inch
    Make:
    Universal Items
    $20.94 - $27.08
    Qty in Cart: 0
    Price:
    $20.94 - $27.08
    Subtotal:
  • Knoedler Extreme Low Rider Mid Back Seat W/ Headrest, Arms, Isolator- Gray Mordura Cloth

    Knoedler Extreme Low Rider Mid Back Seat W/ Headrest, Arms, Isolator- Gray Mordura Cloth

    KNOEDLER

    $2,249.99
    Gray Mordura Cloth Extreme Low Rider Mid Back Seat W/ Headrest, Arms, IsolatorOptimize your truck cab with the Knoedler Extreme Low Rider Mid Back Seat, upholstered in durable gray Mordura cloth and...
    98SCL62MH0D05
    SKU:
    98SCL62MH0D05
    Material Options:
    Nylon
    Product Type:
    Seats
    Degree Options:
    45
    Color:
    Gray
    Style Options:
    Mid Back
    Make:
    Universal Items
    $2,249.99
    Qty in Cart: 0
    Price:
    $2,249.99
    Subtotal:
  • Knoedler Low Rider Air Chief High Back Seat W/ FAS Lumbar, Arms W/ Black Synthetic Leather

    Knoedler Low Rider Air Chief High Back Seat W/ FAS Lumbar, Arms W/ Black Synthetic Leather

    KNOEDLER

    $1,580.99
    Black Synthetic Leather Low Rider Air Chief High Back Seat W/ FAS Lumbar, ArmsTake your driving comfort to the next level with the Knoedler Low Rider Air Chief High Back Seat. Lowered by 1.5 inches,...
    98LRL82TB0S01
    SKU:
    98LRL82TB0S01
    Degree Options:
    45
    Width Options:
    20 Inch
    Color:
    Black
    Material Options:
    Synthetic Leather
    Style Options:
    High Back
    Product Type:
    Seats
    Make:
    Universal Items
    $1,580.99
    Qty in Cart: 0
    Price:
    $1,580.99
    Subtotal:
  • Knoedler Extreme Low Rider Air Chief Mid Back Seat W/ FAS Lumbar, Headrest, Arms, Integrated Compressor- Black & Gray Synthetic Leather

    Knoedler Extreme Low Rider Air Chief Mid Back Seat W/ FAS Lumbar, Headrest, Arms, Integrated Compressor- Black & Gray Synthetic Leather

    KNOEDLER

    $2,625.99
    Black & Gray Synthetic Leather Extreme Low Rider Air Chief Mid Back Seat W/ FAS Lumbar, Headrest, Arms, Integrated Compressor- Black & Gray Synthetic LeatherFor drivers seeking a perfect blend of...
    98SSL62MH0S015
    SKU:
    98SSL62MH0S015
    Product Type:
    Seats
    Color:
    Black
    Material Options:
    Synthetic Leather
    Style Options:
    Mid Back
    Degree Options:
    45
    Make:
    Universal Items
    $2,625.99
    Qty in Cart: 0
    Price:
    $2,625.99
    Subtotal:
  • Knoedler Extreme Low Rider Air Chief Mid Back Seat W/ FAS Lumbar, Arms, Headrest, Integrated Compressor- Black Synthetic Leather

    Knoedler Extreme Low Rider Air Chief Mid Back Seat W/ FAS Lumbar, Arms, Headrest, Integrated Compressor- Black Synthetic Leather

    KNOEDLER

    $2,625.99
    Black Synthetic Leather Extreme Low Rider Air Chief Mid Back Seat W/ FAS Lumbar, Arms, Headrest, Integrated CompressorMaximize long-haul comfort with the Knoedler Extreme Low Rider Air Chief Mid Back...
    98SSL62MH0S01
    SKU:
    98SSL62MH0S01
    Color:
    Black
    Style Options:
    Mid Back
    Degree Options:
    45
    Product Type:
    Seats
    Material Options:
    Synthetic Leather
    Make:
    Universal Items
    $2,625.99
    Qty in Cart: 0
    Price:
    $2,625.99
    Subtotal:
  • Knoedler Extreme Low Rider Air Chief Mid Back Seat W/ FAS Lumbar, Arms, Headrest- Gray Synthetic Leather

    Knoedler Extreme Low Rider Air Chief Mid Back Seat W/ FAS Lumbar, Arms, Headrest- Gray Synthetic Leather

    KNOEDLER

    $2,267.99
    Gray Synthetic Leather Extreme Low Rider Air Chief Mid Back Seat W/ FAS Lumbar, Arms, HeadrestElevate your driving experience with the Knoedler Extreme Low Rider Air Chief Mid Back Seat, upholstered...
    98SCL62MH0S05
    SKU:
    98SCL62MH0S05
    Degree Options:
    45
    Color:
    Gray
    Material Options:
    Synthetic Leather
    Style Options:
    Mid Back
    Product Type:
    Seats
    Make:
    Universal Items
    $2,267.99
    Qty in Cart: 0
    Price:
    $2,267.99
    Subtotal:
  • Knoedler Extreme Low Rider Mid Back Seat W/ Headrest, Arms, Isolator- Black Mordura Cloth

    Knoedler Extreme Low Rider Mid Back Seat W/ Headrest, Arms, Isolator- Black Mordura Cloth

    KNOEDLER

    $2,249.99
    Black Mordura Cloth Extreme Low Rider Mid Back Seat W/ Headrest, Arms, IsolatorTake command of your cab with the Knoedler Extreme Low Rider Mid Back Seat, designed for maximum comfort and...
    98SCL62MH0D01
    SKU:
    98SCL62MH0D01
    Product Type:
    Seats
    Color:
    Black
    Material Options:
    Nylon
    Style Options:
    Mid Back
    Degree Options:
    45
    Make:
    Universal Items
    $2,249.99
    Qty in Cart: 0
    Price:
    $2,249.99
    Subtotal:
  • Knoedler Extreme Low Rider Mid Back Seat W/ FAS Lumbar, Arms- Black Synthetic Leather

    Knoedler Extreme Low Rider Mid Back Seat W/ FAS Lumbar, Arms- Black Synthetic Leather

    KNOEDLER

    $2,170.99
    Black Synthetic Leather Extreme Low Rider Mid Back Seat W/ FAS Lumbar, ArmsRide in comfort and style with the Knoedler Extreme Low Rider Mid Back Seat, a high-performance seat designed for drivers...
    98SCL60MB0S01
    SKU:
    98SCL60MB0S01
    Degree Options:
    45
    Width Options:
    20 Inch
    Material Options:
    Synthetic Leather
    Color:
    Black
    Style Options:
    Mid Back
    Product Type:
    Seats
    Make:
    Universal Items
    $2,170.99
    Qty in Cart: 0
    Price:
    $2,170.99
    Subtotal:
  • Knoedler Low Rider Air Chief Wide Seat W/ FAS Lumbar, Arms- Black Synthetic Leather

    Knoedler Low Rider Air Chief Wide Seat W/ FAS Lumbar, Arms- Black Synthetic Leather

    KNOEDLER

    $1,580.99
    Black Synthetic Leather Low Rider Air Chief Wide Seat W/ FAS Lumbar, ArmsDrive in comfort and style with the Knoedler Low Rider Air Chief Wide Seat. The 23-inch wide cushion, mid-back seat, and...
    98LWL82MH0S01
    SKU:
    98LWL82MH0S01
    Product Type:
    Seats
    Color:
    Black
    Style Options:
    Mid Back
    Material Options:
    Synthetic Leather
    Width Options:
    23 Inch
    Degree Options:
    45
    Make:
    Universal Items
    $1,580.99
    Qty in Cart: 0
    Price:
    $1,580.99
    Subtotal:
  • Knoedler Air Chief Standard Base Mid Back Seat W/ FAS Lumbar, Arms, Headrest, Bellows- Black & Brown Synthetic Leather

    Knoedler Air Chief Standard Base Mid Back Seat W/ FAS Lumbar, Arms, Headrest, Bellows- Black & Brown Synthetic Leather

    KNOEDLER

    $1,876.99
    Black & Brown Synthetic Leather Air Chief Standard Base Mid Back Seat W/ FAS Lumbar, Arms, Headrest, BellowsLong-haul drivers can enjoy unmatched comfort with the Knoedler Air Chief Standard Base Mid...
    98CWL82MH0S12
    SKU:
    98CWL82MH0S12
    Product Type:
    Seats
    Style Options:
    Mid Back
    Material Options:
    Synthetic Leather
    Color:
    Black
    Width Options:
    23 Inch
    Make:
    Universal Items
    $1,876.99
    Qty in Cart: 0
    Price:
    $1,876.99
    Subtotal:
  • V-Band Clamp For Cummins ISM, ISX 12, ISX 15 Engine Replaces 2871863

    V-Band Clamp For Cummins ISM, ISX 12, ISX 15 Engine Replaces 2871863

    AUTOMANN USA

    $32.14
    13.375 Inch V- Band ClampProtect your DPF muffler system on Cummins ISM, ISX 12, and ISX 15 engines with this high-quality stainless steel V-Band Clamp, replacing 2871863. The 12.5-inch body and 13...
    29-08060022
    SKU:
    29-08060022
    Length Options:
    12 1/2 Inch
    Material Options:
    Stainless Steel
    Style Options:
    Cummins
    Diameter Options:
    13 1/2 Inch
    Product Type:
    Exhaust
    Make:
    Universal Items
    $32.14
    Qty in Cart: 0
    Price:
    $32.14
    Subtotal:
  • Knoedler Chief Standard Base High Back Seat W/ 2 Lumbar Supports, Arms, Heat, Massage- Red & Black Synthetic Leather

    Knoedler Chief Standard Base High Back Seat W/ 2 Lumbar Supports, Arms, Heat, Massage- Red & Black Synthetic Leather

    KNOEDLER

    $2,996.99
    Red & Black Synthetic Leather Chief Standard Base High Back Seat W/ 2 Lumbar Supports, Arms, Heat, MassageElevate your cab interior with the Knoedler Chief Standard Base High Back Seat, designed for...
    98CHS82TB0S16
    SKU:
    98CHS82TB0S16
    Color:
    Black
    Product Type:
    Seats
    Degree Options:
    45
    Style Options:
    High Back
    Material Options:
    Synthetic Leather
    Height Options:
    20 Inch
    Make:
    Universal Items
    $2,996.99
    Qty in Cart: 0
    Price:
    $2,996.99
    Subtotal:
  • On Sale
    Limited Quantity Available
    Knoedler Harrier Standard Base High Back Seat W/ Air Lumbar, Arms- Black Synthetic Leather

    Knoedler Harrier Standard Base High Back Seat W/ Air Lumbar, Arms- Black Synthetic Leather

    KNOEDLER

    Now: $933.79
    Was: $1,333.99
    Black Synthetic Leather Harrier Standard Base High Back Seat W/ Air Lumbar, ArmsExperience premium comfort and advanced ergonomics with the Knoedler Harrier Standard Base High Back Seat. This...
    941082TB0S01
    SKU:
    941082TB0S01
    Material Options:
    Synthetic Leather
    Degree Options:
    45
    Product Type:
    Seats
    Color:
    Black
    Style Options:
    High Back
    Make:
    Universal Items
    Ready To Ship:
    Yes
    Now: $933.79
    Was: $1,333.99
    Qty in Cart: 0
    Price:
    Now: $933.79
    Was: $1,333.99
    Subtotal:
  • Hub Odometer Bracket Replaces GT-4065, STM6100065, 610-0065

    Hub Odometer Bracket Replaces GT-4065, STM6100065, 610-0065

    AUTOMANN USA

    $18.50
    Hub Odometer BracketEnhance the stability of your hub odometer assembly with this premium Hub Odometer Bracket. Featuring two legs with 0.375-inch mounting holes and a 0.5-inch top mounting hole, it...
    29-20200053
    SKU:
    29-20200053
    Width Options:
    1 1/2 Inch
    Product Type:
    Wheels
    Height Options:
    3 1/2 Inch
    Length Options:
    5 1/2 Inch
    Make:
    Universal Items
    $18.50
    Qty in Cart: 0
    Price:
    $18.50
    Subtotal:
  • V-Band Clamp For Cummins & PACCAR Engine Replaces 2871862, Q187681, P238308, AC300011

    V-Band Clamp For Cummins & PACCAR Engine Replaces 2871862, Q187681, P238308, AC300011

    AFTERMARKET

    $53.99
    11.90 Inch V-Band ClampKeep your Cummins or PACCAR engine running efficiently with this high-quality V-Band Clamp. With stainless steel construction, a 9.5-inch body, and 11.900-inch nominal...
    29-08060018
    SKU:
    29-08060018
    Diameter Options:
    11 1/2 Inch
    Length Options:
    9 1/2 Inch
    Style Options:
    Paccar
    Material Options:
    Stainless Steel
    Product Type:
    Exhaust
    Make:
    Universal Items
    $53.99
    Qty in Cart: 0
    Price:
    $53.99
    Subtotal:
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Adding your products to cart

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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