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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
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  • Price
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  • Camshaft Position Sensor For Caterpillar C15 Engines Replaces 2016617

    Camshaft Position Sensor For Caterpillar C15 Engines Replaces 2016617

    AUTOMANN USA

    $147.99
    Caterpillar C15 Engine Camshaft Position Sensor- 2 PinMaximize engine efficiency and performance with this high-quality Camshaft Position Sensor for CAT C15 engines, replacing 2016617. Featuring a...
    29-07100070
    SKU:
    29-07100070
    Style Options:
    Caterpillar
    Length Options:
    2 1/2 Inch
    Product Type:
    Engine Parts
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $147.99
    Qty in Cart: 0
    Price:
    $147.99
    Subtotal:
  • Oil Filler Cap For PACCAR MX13 Engine Replaces 1785085, 1785085PE

    Oil Filler Cap For PACCAR MX13 Engine Replaces 1785085, 1785085PE

    AUTOMANN USA

    $19.04
    PACCAR MX13 Engine Oil Filler CapMaintain your PACCAR MX13 engine with this high-quality replacement Oil Filler Cap, designed to replace 1785085 and 1785085PE. Made from durable rubber with a...
    29-072000014
    SKU:
    29-072000014
    Material Options:
    Rubber
    Product Type:
    Engine Parts
    Color:
    Red
    Style Options:
    Paccar
    Diameter Options:
    1 1/2 Inch
    Make:
    Universal Items
    $19.04
    Qty in Cart: 0
    Price:
    $19.04
    Subtotal:
  • Engine Oil Filter Screw Cap For PACCAR MX13 Engine Replaces 1876740, 1876740, 1936324, 1936324, 1948922, 2011888

    Engine Oil Filter Screw Cap For PACCAR MX13 Engine Replaces 1876740, 1876740, 1936324, 1936324, 1948922, 2011888

    AUTOMANN USA

    $69.99
    PACCAR MX13 Engine Oil Filter Screw CapEnsure your PACCAR MX13 engine continues to operate efficiently with this replacement Engine Oil Filter Screw Cap. Its centrifugal screw-on design with included...
    29-072000015
    SKU:
    29-072000015
    Style Options:
    Paccar
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $69.99
    Qty in Cart: 0
    Price:
    $69.99
    Subtotal:
  • Air Inlet Manifold Pressure Sensor Replaces 1619929, 1946724, 1298374

    Air Inlet Manifold Pressure Sensor Replaces 1619929, 1946724, 1298374

    AUTOMANN USA

    $115.99
    16.50 Inch Air Inlet Manifold Pressure Sensor- 3 PinThis high-quality Air Inlet Manifold Pressure Sensor replacement for 1619929, 1946724, and 1298374 ensures accurate air pressure readings for...
    29-07100066
    SKU:
    29-07100066
    Style Options:
    Caterpillar
    Length Options:
    16 1/2 Inch
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $115.99
    Qty in Cart: 0
    Price:
    $115.99
    Subtotal:
  • Fuel and Water Separator Vent Cap Replaces 240023, 240023DAV, DVC240023DAV, 1694745C91

    Fuel and Water Separator Vent Cap Replaces 240023, 240023DAV, DVC240023DAV, 1694745C91

    AUTOMANN USA

    $9.99
    Fuel and Water Separator Vent CapSafeguard your truck's fuel system with this Fuel and Water Separator Vent Cap, designed to replace 240023, 240023DAV, DVC240023DAV, and 1694745C91. Cap only, sold...
    29-071200034
    SKU:
    29-071200034
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $9.99
    Qty in Cart: 0
    Price:
    $9.99
    Subtotal:
  • Intake Manifold Air Temp Sensor For Cummins ISX, QSX15 Engine Replaces 4921473, 3417142

    Intake Manifold Air Temp Sensor For Cummins ISX, QSX15 Engine Replaces 4921473, 3417142

    AUTOMANN USA

    $90.99
    Cummins ISX, QSX15 Engine Intake Manifold Air Temp Sensor- 4 PinThis Intake Manifold Air Temp Sensor provides precise and reliable air temperature monitoring for Cummins ISX and QSX15 engines,...
    29-07100062
    SKU:
    29-07100062
    Product Type:
    Engine Parts
    Style Options:
    Cummins
    Length Options:
    1 3/4 Inch
    Make:
    Universal Items
    $90.99
    Qty in Cart: 0
    Price:
    $90.99
    Subtotal:
  • Coolant Temp Sensor For Caterpillar Engines Replaces 1022240

    Coolant Temp Sensor For Caterpillar Engines Replaces 1022240

    AUTOMANN USA

    $115.99
    Caterpillar Engine Coolant Temp Sensor- 3 PinThis Coolant Temp Sensor for Caterpillar engines replaces 1022240 and delivers precise temperature monitoring to optimize engine performance. Featuring a...
    29-07100071
    SKU:
    29-07100071
    Style Options:
    Caterpillar
    Diameter Options:
    1 Inch
    Length Options:
    3 Inch
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $115.99
    Qty in Cart: 0
    Price:
    $115.99
    Subtotal:
  • Cam Crank Timing Position Sensor For CAT C11, C13, C15 Engine Replaces 2016615

    Cam Crank Timing Position Sensor For CAT C11, C13, C15 Engine Replaces 2016615

    AUTOMANN USA

    $121.99
    Caterpillar Engine Cam Crank Timing Position Sensor- 2 PinKeep your CAT C11, C13, and C15 engines running at peak efficiency with this high-quality Cam Crank Timing Position Sensor, replacing 2016615...
    29-07100072
    SKU:
    29-07100072
    Length Options:
    3 Inch
    Product Type:
    Engine Parts
    Style Options:
    Caterpillar
    Make:
    Universal Items
    $121.99
    Qty in Cart: 0
    Price:
    $121.99
    Subtotal:
  • GP Speed Sensor For Caterpillar C12 Engine Replaces 1918304, 191-8304

    GP Speed Sensor For Caterpillar C12 Engine Replaces 1918304, 191-8304

    AUTOMANN USA

    $101.99
    Caterpillar C12 Engine GP Speed Sensor- 2 PinOptimize your Caterpillar C12 engine performance with this high-quality GP Speed Sensor, replacing 1918304 and 191-8304. It features a 2-pin...
    29-07100058
    SKU:
    29-07100058
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $101.99
    Qty in Cart: 0
    Price:
    $101.99
    Subtotal:
  • Air Inlet Manifold Pressure Sensor For CAT C11, C13, C15 Engine Replaces 2393478

    Air Inlet Manifold Pressure Sensor For CAT C11, C13, C15 Engine Replaces 2393478

    AUTOMANN USA

    $188.99
    Air Inlet Manifold Pressure Sensor- 3 PinEnsure smooth and efficient engine performance with this Air Inlet Manifold Pressure Sensor for CAT C11, C13, and C15 engines, replacing 2393478. Featuring a...
    29-07100067
    SKU:
    29-07100067
    Product Type:
    Engine Parts
    Length Options:
    2 Inch
    Style Options:
    Caterpillar
    Make:
    Universal Items
    $188.99
    Qty in Cart: 0
    Price:
    $188.99
    Subtotal:
  • Air Pressure Sensor For Caterpillar Engines Replaces 1619925, 1946722

    Air Pressure Sensor For Caterpillar Engines Replaces 1619925, 1946722

    AUTOMANN USA

    $123.99
    Caterpillar Engine Air Pressure Sensor- 3 PinKeep your Caterpillar engine running efficiently with this high-quality Air Pressure Sensor. With a 3-pin connector and 9/16-inch - 18 threaded base, it...
    29-07100069
    SKU:
    29-07100069
    Product Type:
    Engine Parts
    Style Options:
    Caterpillar
    Length Options:
    2 1/4 Inch
    Make:
    Universal Items
    $123.99
    Qty in Cart: 0
    Price:
    $123.99
    Subtotal:
  • Speed Sensor For CAT C11, C13, C15 Engine Replaces 2016616

    Speed Sensor For CAT C11, C13, C15 Engine Replaces 2016616

    AUTOMANN USA

    $169.99
    Caterpillar Engine Speed Sensor- 2 PinKeep your CAT C11, C13, and C15 engine running smoothly with this Speed Sensor, replacing 2016616. Featuring a 2-pin connector/terminal and a mounting bracket...
    29-07100068
    SKU:
    29-07100068
    Length Options:
    2 1/4 Inch
    Style Options:
    Caterpillar
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $169.99
    Qty in Cart: 0
    Price:
    $169.99
    Subtotal:
  • Crankshaft Position Sensor For Cummins ISB Engine Replaces 4921601

    Crankshaft Position Sensor For Cummins ISB Engine Replaces 4921601

    AUTOMANN USA

    $61.99
    Cummins ISB Engine Crankshaft Position Sensor- 3 PinUpgrade your Cummins ISB engine with this high-quality Crankshaft Position Sensor, replacing 4921601 to provide accurate and dependable timing...
    29-07100054
    SKU:
    29-07100054
    Style Options:
    Cummins
    Length Options:
    2 5/8 Inch
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $61.99
    Qty in Cart: 0
    Price:
    $61.99
    Subtotal:
  • Oil Pressure Sensor For Cummins 6C, ISC Engine Replaces 4326849, 4921511, 4088390

    Oil Pressure Sensor For Cummins 6C, ISC Engine Replaces 4326849, 4921511, 4088390

    AUTOMANN USA

    $90.99
    Cummins 6C, ISC Engine Oil Pressure Sensor- 3 PinThis replacement Oil Pressure Sensor for Cummins 6C and ISC engines provides accurate and reliable monitoring, replacing 4326849, 4921511, and 4088390...
    29-07100063
    SKU:
    29-07100063
    Style Options:
    Cummins
    Length Options:
    2 Inch
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $90.99
    Qty in Cart: 0
    Price:
    $90.99
    Subtotal:
  • NOx Sensor For Cummins ISB, ISL Engine Replaces 2871979, 2894940, 4954222, 4984577

    NOx Sensor For Cummins ISB, ISL Engine Replaces 2871979, 2894940, 4954222, 4984577

    AUTOMANN USA

    $403.99
    Cummins ISB, ISL Engine NOx Sensor- 4 PinThis NOx Sensor for Cummins ISB and ISL engines delivers accurate nitrogen oxide readings and long-lasting performance. Featuring a 4-pin connector/terminal,...
    29-07100064
    SKU:
    29-07100064
    Product Type:
    Engine Parts
    Material Options:
    Aluminum
    Style Options:
    Cummins
    Make:
    Universal Items
    $403.99
    Qty in Cart: 0
    Price:
    $403.99
    Subtotal:
  • Manifold Pressure Sensor For Cummins L10, M11 & ISM Engine Replaces 4921493, 3330141

    Manifold Pressure Sensor For Cummins L10, M11 & ISM Engine Replaces 4921493, 3330141

    AUTOMANN USA

    $123.99
    Cummins L10, M11 & ISM Engine Manifold Pressure Sensor - 3 PinThis high-quality Manifold Pressure Sensor for Cummins L10, M11, and ISM engines, replacing 4921493 and 3330141, delivers precise and...
    29-07100059
    SKU:
    29-07100059
    Product Type:
    Engine Parts
    Style Options:
    Cummins
    Length Options:
    2 Inch
    Make:
    Universal Items
    $123.99
    Qty in Cart: 0
    Price:
    $123.99
    Subtotal:
  • Oil Temp Sensor For Cummins ISM, QSM Engine Replaces 4921477

    Oil Temp Sensor For Cummins ISM, QSM Engine Replaces 4921477

    AUTOMANN USA

    $95.99
    Cummins ISM, QSM Engine Oil Temp Sensor- 4 PinMonitor your engine's oil temperature with precision using this high-quality Oil Temp Sensor for Cummins ISM and QSM engines. Built for durability and...
    29-07100061
    SKU:
    29-07100061
    Product Type:
    Engine Parts
    Length Options:
    2 Inch
    Make:
    Universal Items
    $95.99
    Qty in Cart: 0
    Price:
    $95.99
    Subtotal:
  • Turbo Boost Sensor For Cummiins N14, L10, M11 & ISM Engine Replaces 3084521, 4921501

    Turbo Boost Sensor For Cummiins N14, L10, M11 & ISM Engine Replaces 3084521, 4921501

    AUTOMANN USA

    $108.99
    Cummiins N14, L10, M11 & ISM Engine Turbo Boost Sensor- 3 PinMaintain turbocharger accuracy on your Cummins N14, L10, M11, or ISM engine with this high-quality Turbo Boost Sensor, replacing 3084521...
    29-07100060
    SKU:
    29-07100060
    Style Options:
    Cummins
    Length Options:
    2 Inch
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $108.99
    Qty in Cart: 0
    Price:
    $108.99
    Subtotal:
  • Crankshaft Position Sensor For Cummins ISB Engine Replaces 3408430, 4921597, 050705

    Crankshaft Position Sensor For Cummins ISB Engine Replaces 3408430, 4921597, 050705

    AUTOMANN USA

    $66.99
    Cummins ISB Engine Crankshaft Position Sensor- 3 PinMaintain optimal performance for your Cummins ISB engine with this high-quality Crankshaft Position Sensor replacing 3408430, 4921597, and 050705...
    29-07100055
    SKU:
    29-07100055
    Product Type:
    Engine Parts
    Length Options:
    2 1/4 Inch
    Style Options:
    Cummins
    Make:
    Universal Items
    $66.99
    Qty in Cart: 0
    Price:
    $66.99
    Subtotal:
  • GP Speed Sensor For Caterpillar C15, C15A Engine Replaces 1918303, 191-8303

    GP Speed Sensor For Caterpillar C15, C15A Engine Replaces 1918303, 191-8303

    AUTOMANN USA

    $93.99
    Caterpillar C15, C15A Engine GP Speed Sensor- 2 PinEnsure accurate speed readings for your Caterpillar C15 and C15A engines with this GP Speed Sensor replacement for 1918303 and 191-8303. It comes...
    29-07100057
    SKU:
    29-07100057
    Product Type:
    Engine Parts
    Style Options:
    2 Prong
    Length Options:
    2 5/8 Inch
    Make:
    Universal Items
    $93.99
    Qty in Cart: 0
    Price:
    $93.99
    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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