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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.
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  • Qty in Cart
  • Quantity
  • Price
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  • Power Steering Pump For Caterpillar 3126 & 3116, 13.2K & 14.6K Engines

    Power Steering Pump For Caterpillar 3126 & 3116, 13.2K & 14.6K Engines

    AFTERMARKET

    $570.99
    PS Type Power Steering Pump Replaces PS251615L113Maximize steering efficiency on Caterpillar 3126 and 3116 engines with the TRW-PS Power Steering Pump, designed for 13.2K and 14.6K engine models...
    29-07120045
    SKU:
    29-07120045
    Product Type:
    Engine Parts
    Material Options:
    Aluminum
    Make:
    Universal Items
    $570.99
    Qty in Cart: 0
    Price:
    $570.99
    Subtotal:
  • Oil Pan Plug Single Use Replaces 1982821PE, 233.451, 233451, 1853604PE For PACCAR MX11/MX13

    Oil Pan Plug Single Use Replaces 1982821PE, 233.451, 233451, 1853604PE For PACCAR MX11/MX13

    AUTOMANN USA

    $13.61
    Oil Pan Plug For PACCAR MX11 & MX13 EnginesMaintain a leak-free and reliable engine with this high-quality Oil Pan Plug for PACCAR MX11 and MX13 engines. Designed to replace 1982821PE, 233.451,...
    29-07200023
    SKU:
    29-07200023
    Product Type:
    Engine Parts
    Style Options:
    Paccar
    Color:
    Black
    Material Options:
    Plastic/Poly
    Make:
    Universal Items
    $13.61
    Qty in Cart: 0
    Price:
    $13.61
    Subtotal:
  • Power Steering Pump Replaces PS2216-15R102

    Power Steering Pump Replaces PS2216-15R102

    AFTERMARKET

    $462.99
    PS Type Power Steering Pump Replaces PS2216-15R102Restore reliable steering control in your truck with this TRW-PS Type Power Steering Pump, built to replace PS2216-15R102. Featuring 22 CC...
    29-07120036
    SKU:
    29-07120036
    Product Type:
    Engine Parts
    Material Options:
    Aluminum
    Make:
    Universal Items
    $462.99
    Qty in Cart: 0
    Price:
    $462.99
    Subtotal:
  • Power Steering Pump Replaces PS282815L116

    Power Steering Pump Replaces PS282815L116

    AFTERMARKET

    $508.99
    PS Type Power Steering Pump Replaces PS282815L116Take control of your Freightliner truck's steering with this TRW-PS Type Power Steering Pump, designed to replace PS282815L116. With 28 CC...
    29-07120041
    SKU:
    29-07120041
    Material Options:
    Aluminum
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $508.99
    Qty in Cart: 0
    Price:
    $508.99
    Subtotal:
  • Power Steering Pump Replaces EV221609L101, EV221609L10101, 137114

    Power Steering Pump Replaces EV221609L101, EV221609L10101, 137114

    AFTERMARKET

    $458.99
    EV Type Power Steering PumpReplaces EV221609L101, EV221609L10101, 137114Keep your truck's steering system operating at peak performance with this TRW-EV Type Power Steering Pump. Replacing...
    29-07120037
    SKU:
    29-07120037
    Material Options:
    Aluminum
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $458.99
    Qty in Cart: 0
    Price:
    $458.99
    Subtotal:
  • Water Pump For Detroit Diesel 50 Series 8.5L Engines & Detroit Diesel 60 Series 11.1L & 12.7L Engines

    Water Pump For Detroit Diesel 50 Series 8.5L Engines & Detroit Diesel 60 Series 11.1L & 12.7L Engines

    AFTERMARKET

    $331.99
    Water Pump Replaces 23526039. 46002HDProtect your Detroit Diesel engine from overheating with this high-performance water pump, built for Series 50 8.5L and Series 60 11.1L & 12.7L engines. Featuring...
    29-07120039
    SKU:
    29-07120039
    Material Options:
    Cast Iron
    Style Options:
    Detroit
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $331.99
    Qty in Cart: 0
    Price:
    $331.99
    Subtotal:
  • Power Steering Pump Replaces RP221615A. RP221615AX. PS251615R114

    Power Steering Pump Replaces RP221615A. RP221615AX. PS251615R114

    AFTERMARKET

    $479.99
    Power Steering Pump- PS Type* High Quality Power Steering Pump* TRW-PS Type* 25 CC Displacement* 4.23 GPM* 2175 PSI* RH CW Rotation* 11 Tooth* 18 Degree Offset* (1) 1/16 - 12 UN-2B Inlet Port (Right...
    29-07120027
    SKU:
    29-07120027
    Product Type:
    Engine Parts
    Material Options:
    Aluminum
    Make:
    Universal Items
    $479.99
    Qty in Cart: 0
    Price:
    $479.99
    Subtotal:
  • Power Steering Pump- PS Type Replaces RP221601. RP221601X. PS221615R103

    Power Steering Pump- PS Type Replaces RP221601. RP221601X. PS221615R103

    AFTERMARKET

    $479.99
    PS Type Power Steering PumpMaintain full steering control with this TRW-PS Type Power Steering Pump, engineered for trucks needing RP221601, RP221601X, or PS221615R103 replacements. With 22 CC...
    29-07120029
    SKU:
    29-07120029
    Material Options:
    Aluminum
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $479.99
    Qty in Cart: 0
    Price:
    $479.99
    Subtotal:
  • 2 Piece Clutch Brake Replaces 127200X, 1091467

    2 Piece Clutch Brake Replaces 127200X, 1091467

    AUTOMANN USA

    $40.80
    2 Piece Clutch Brake- 2 Inch Torque Limit* High Quality Clutch Brake* 2 Inch Torque Limit* 2 Pieces* 2.00 Inch Inner Diameter* 4.50 Inch Outer Diameter* 0.38 Inch Width* Sold Individually* Warranty...
    29-07050016
    SKU:
    29-07050016
    Diameter Options:
    4 1/2 Inch
    Product Type:
    Engine Parts
    Width Options:
    1/4 Inch
    Make:
    Universal Items
    $40.80
    Qty in Cart: 0
    Price:
    $40.80
    Subtotal:
  • Water Pump For CAT 3406E Replaces 6I3890, 85107759, 44054HD

    Water Pump For CAT 3406E Replaces 6I3890, 85107759, 44054HD

    AFTERMARKET

    $535.99
    Cast Iron Water Pump For CAT 3406EKeep your CAT 3406E diesel engine performing at its best with this premium replacement water pump, compatible with part numbers 6I3890, 85107759, and 44054HD. The...
    29-07120026
    SKU:
    29-07120026
    Material Options:
    Cast Iron
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $535.99
    Qty in Cart: 0
    Price:
    $535.99
    Subtotal:
  • High Temperature Pilot Bearing Replaces 306VV, 63062RS2, 63062RS2C3, 0212176000

    High Temperature Pilot Bearing Replaces 306VV, 63062RS2, 63062RS2C3, 0212176000

    AUTOMANN USA

    $28.43
    High Temperature Pilot BearingReplace worn pilot bearings with this High Temperature Pilot Bearing, compatible with 306VV, 63062RS2, 63062RS2C3, and 0212176000. Built for extreme heat and constant...
    29-07050008
    SKU:
    29-07050008
    Width Options:
    3/4 Inch
    Diameter Options:
    2 3/4 Inch
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $28.43
    Qty in Cart: 0
    Price:
    $28.43
    Subtotal:
  • Differential Pinion Seal Replaces 105445R91. 358922C91. 405368C91. 68536R91. 27KH113. 364SZ136. 88AX126. 88AX198. 88AX209. 88AX255. 88AX318P2. 88AX346P2. 88AX360P2. 88AX464. 475009N

    Differential Pinion Seal Replaces 105445R91. 358922C91. 405368C91. 68536R91. 27KH113. 364SZ136. 88AX126. 88AX198. 88AX209. 88AX255. 88AX318P2. 88AX346P2. 88AX360P2. 88AX464. 475009N

    AUTOMANN USA

    $5.77
    Differential Pinion Seal 2.75 X 3.883 Inch OD* High Quality Pinion Seal* Differential* 2.75 Inch Shaft Diameter* 3.883 Inch Outer Diameter* 0.374 Inch Width* Sold Individually* Warranty On Pinion...
    29-05210006
    SKU:
    29-05210006
    Width Options:
    1/4 Inch
    Diameter Options:
    3 1/2 Inch
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $5.77
    Qty in Cart: 0
    Price:
    $5.77
    Subtotal:
  • Clutch Brake Replaces 127760X, 797700C1, 8070265

    Clutch Brake Replaces 127760X, 797700C1, 8070265

    AUTOMANN USA

    $27.34
    Clutch Brake- 2 Inch Torque Limit* High Quality Clutch Brake* 2 Inch Torque Limit* 2.00 Inch Inner Diameter* 4.81 Inch Outer Diameter* 0.44 Inch Width* Sold Individually* Warranty On Clutch Brakes...
    29-07050015
    SKU:
    29-07050015
    Product Type:
    Engine Parts
    Diameter Options:
    4 3/4 Inch
    Width Options:
    1/2 Inch
    Make:
    Universal Items
    $27.34
    Qty in Cart: 0
    Price:
    $27.34
    Subtotal:
  • Air Spring Rolling Lobe Replaces 9370, 1R12-580, 64383, AB1DK23N-9370, W01-358-9370 For Watson & Chalin Lift Suspension, Trailer Suspension

    Air Spring Rolling Lobe Replaces 9370, 1R12-580, 64383, AB1DK23N-9370, W01-358-9370 For Watson & Chalin Lift Suspension, Trailer Suspension

    AFTERMARKET

    $177.99
    Rolling Lobe Air Spring For Watson & Chalin Lift and Trailer SuspensionExperience superior suspension support with the Econoride Air Spring Rolling Lobe, built for Watson & Chalin lift suspensions...
    29-05200018
    SKU:
    29-05200018
    Diameter Options:
    9 Inch
    Material Options:
    Plastic/Poly
    Style Options:
    Rolling Lobe
    Height Options:
    18 Inch
    Product Type:
    Frame & Chassis
    Make:
    Trailer
    Make:
    Universal Items
    $177.99
    Qty in Cart: 0
    Price:
    $177.99
    Subtotal:
  • Pinion Seal Replaces 30148. NA710008. 1651281C91. 464244C1. 464244C2. 710008. 4330148

    Pinion Seal Replaces 30148. NA710008. 1651281C91. 464244C1. 464244C2. 710008. 4330148

    AUTOMANN USA

    $21.96
    Pinion Seal 3.90 Bore Diameter X 6.25 Inch* High Quality Pinion Seal* 3.900 Inch Bore Diameter* 2.937 Inch Shaft Diameter* 6.250 Inch Outer Diameter* Sold Individually* Warranty On Pinion Seals...
    29-05210002
    SKU:
    29-05210002
    Product Type:
    Frame & Chassis
    Diameter Options:
    6 1/4 Inch
    Make:
    Universal Items
    $21.96
    Qty in Cart: 0
    Price:
    $21.96
    Subtotal:
  • Double Convoluted Air Spring Replaces FD 200-25 428. . SC2127. S8701. W01-358-6947 1003586947C. 2B9255. 2B9258. 3546947. 57006947. 578923206 For Henrickson Trailer, Ridewell Suspension

    Double Convoluted Air Spring Replaces FD 200-25 428. . SC2127. S8701. W01-358-6947 1003586947C. 2B9255. 2B9258. 3546947. 57006947. 578923206 For Henrickson Trailer, Ridewell Suspension

    AUTOMANN USA

    $141.99
    Double Convoluted Air Spring For Hendrickson Trailer & Ridewell Suspension* High Quality Air Spring* Continental Brand* Double Convoluted* Load At 80 PSI - 2750 Lbs* Load At 100 PSI - 3450 Lbs*...
    29-0510113
    SKU:
    29-0510113
    Height Options:
    10 Inch
    Product Type:
    Frame & Chassis
    Material Options:
    Plastic/Poly
    Diameter Options:
    6 1/4 Inch
    Style Options:
    Double Convolute
    Make:
    Universal Items
    $141.99
    Qty in Cart: 0
    Price:
    $141.99
    Subtotal:
  • Air Spring Rolling Lobe Replaces 9321, 1R12-335, 64715, AB1DK23N-9321 For Hendrickson Turner Lift, Watson & Chalin Lift Suspension

    Air Spring Rolling Lobe Replaces 9321, 1R12-335, 64715, AB1DK23N-9321 For Hendrickson Turner Lift, Watson & Chalin Lift Suspension

    AFTERMARKET

    $202.99
    Rolling Lobe Air Spring For Hendrickson Turner and Watson & Chalin Lift Axle Suspension* High Quality Air Spring*Econoride Brand* Rolling Lobe* Includes: - (2) Top Plate Holes - (4) Bottom Plate...
    29-05200019
    SKU:
    29-05200019
    Style Options:
    Rolling Lobe
    Material Options:
    Plastic/Poly
    Diameter Options:
    9 Inch
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $202.99
    Qty in Cart: 0
    Price:
    $202.99
    Subtotal:
  • Double Convoluted Air Spring Replaces 70658. FD 200-19 894. 1002B09614G For Ridewell Suspension

    Double Convoluted Air Spring Replaces 70658. FD 200-19 894. 1002B09614G For Ridewell Suspension

    AFTERMARKET

    $195.99
    Double Convoluted Air Spring For Ridewell Suspension* High Quality Air Spring* Continental Brand* Double Convoluted* Load At 80 PSI - 2560 Lbs* Load At 100 PSI - 3200 Lbs* Natural Frequency 108 CPM...
    29-05200002
    SKU:
    29-05200002
    Height Options:
    8 Inch
    Product Type:
    Frame & Chassis
    Material Options:
    Plastic/Poly
    Diameter Options:
    6 1/4 Inch
    Style Options:
    Double Convolute
    Make:
    Universal Items
    $195.99
    Qty in Cart: 0
    Price:
    $195.99
    Subtotal:
  • Differential Pinion Seal Replaces 119429. 210737. 29380. 596310C91

    Differential Pinion Seal Replaces 119429. 210737. 29380. 596310C91

    AUTOMANN USA

    $33.73
    Differential Pinion Seal 3.00 X 4.015 Inch OD* High Quality Pinion Seal* Differential* 3.00 Inch Shaft Diameter* 4.015 Inch Outer Diameter* 0.937 Inch Width* Sold Individually* Warranty On Pinion...
    29-05210005
    SKU:
    29-05210005
    Product Type:
    Frame & Chassis
    Width Options:
    1 Inch
    Diameter Options:
    4 Inch
    Make:
    Universal Items
    $33.73
    Qty in Cart: 0
    Price:
    $33.73
    Subtotal:
  • Brake Liner 20K With 6.00 Inch Shoe Width For Meritor Drive/Steer Axle

    Brake Liner 20K With 6.00 Inch Shoe Width For Meritor Drive/Steer Axle

    AFTERMARKET

    $71.99
    Replacement Heavy Duty Brake Lining- 20K- Grade AMF5008* High Quality Brake Lining* 20K Lb Fleet Premium Heavy Duty Rating* Designed For 20,000 Lbs GAWR Steer Axles* 16.50 Inch Drum Diameter* 6.00...
    29-05170017
    SKU:
    29-05170017
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $71.99
    Qty in Cart: 0
    Price:
    $71.99
    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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