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Mack RD Truck Engine Parts & Cooling

Check out our top-notch Mack RD Truck engine parts and cooling system components. From reliable radiators to efficient charge coolers, we've got you covered. Find the perfect solutions to elevate your ride at 4 State Trucks!
  • Product
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • EGR Temperature Sensor Replaces 4902912, 2596660C1, 4700501

    EGR Temperature Sensor Replaces 4902912, 2596660C1, 4700501

    AFTERMARKET

    $103.99
    Exhaust Gas Temperature SensorThis EGR Temperature Sensor is manufactured to strict OE standards, ensuring perfect functionality and easy installation that matches your vehicle seamlessly. Engineered...
    29-07100036
    SKU:
    29-07100036
    Truck Class:
    Heavy Duty
    Product Type:
    Engine Parts
    Make:
    Universal Items
    Color:
    Black
    $103.99
    Qty in Cart: 0
    Price:
    $103.99
    Subtotal:
  • Turbo Mounting Gasket Replaces 189998PE, 908.570, 908570

    Turbo Mounting Gasket Replaces 189998PE, 908.570, 908570

    AUTOMANN USA

    $22.03
    Turbo Mounting Gasket Paccar MX13 For Elring* High Quality Turbo Mounting Gasket* Sold Individually* Warranty On Turbo Mounting Gaskets Against Defects In Workmanship & Material From Date Of...
    29-07040030
    SKU:
    29-07040030
    Truck Class:
    Heavy Duty
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $22.03
    Qty in Cart: 0
    Price:
    $22.03
    Subtotal:
  • Hose Connector Tee 5/16 Inch

    Hose Connector Tee 5/16 Inch

    AUTOMANN USA

    $9.90
    5/16 Inch Hose Connector Tee* High Quality Conti Hose Connector Tee* Glass-Filled Glass Nylon* 5/16 Inch* Temperature Range -50 Deg F To 275 Deg F* Sold As Pack* Warranty On Conti Hose Connector Tees...
    09-07000006
    SKU:
    09-07000006
    Material Options:
    Nylon
    Product Type:
    Engine Parts
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    $9.90
    Qty in Cart: 0
    Price:
    $9.90
    Subtotal:
  • Tensioner Assembly With 1.574 X 2.952 OD Pulley

    Tensioner Assembly With 1.574 X 2.952 OD Pulley

    AUTOMANN USA

    $199.99
    Tensioner AssemblyMaintain precise belt tension and improve engine efficiency with this high-quality Tensioner Assembly, featuring a pulley measuring 1.574 inches wide and 2.952 inches OD. Sold...
    29-07060135
    SKU:
    29-07060135
    Truck Class:
    Heavy Duty
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $199.99
    Qty in Cart: 0
    Price:
    $199.99
    Subtotal:
  • 75mm 1.32 A/R Switchblade Turbocharger For Detroit Diesel Series 60 12.7l & 14l, Cummins ISX15 & X15 - Up To 600 HP

    75mm 1.32 A/R Switchblade Turbocharger For Detroit Diesel Series 60 12.7l & 14l, Cummins ISX15 & X15 - Up To 600 HP

    SWITCHBLADE TURBO

    $2,235.99
    Switchblade Turbocharger for Cummins ISX15, X15 and Detroit Diesel Series 60 12.7L & 14L Applications* High Quality Switchblade Turbocharger* Significantly Improves Fuel Efficiency By An Estimated 0...
    29-07050018
    SKU:
    29-07050018
    Truck Class:
    Heavy Duty
    Product Type:
    Engine Parts
    Make:
    Universal Items
    Material Options:
    Aluminum
    Location:
    Made In USA
    $2,235.99
    Qty in Cart: 0
    Price:
    $2,235.99
    Subtotal:
  • 82mm 1.45 A/R Switchblade Turbocharger For Detroit Diesel Series 60 12.7L & 14L, Cummins ISX15 & X15 - Up To 825 HP

    82mm 1.45 A/R Switchblade Turbocharger For Detroit Diesel Series 60 12.7L & 14L, Cummins ISX15 & X15 - Up To 825 HP

    SWITCHBLADE TURBO

    $2,655.99
    Switchblade Turbocharger for Cummins ISX15, X15 and Detroit Diesel Series 60 12.7L & 14L Applications* High Quality Switchblade Turbocharger* Significantly Improves Fuel Efficiency By An Estimated 0...
    29-07050020
    SKU:
    29-07050020
    Truck Class:
    Heavy Duty
    Product Type:
    Engine Parts
    Make:
    Universal Items
    Material Options:
    Aluminum
    Location:
    Made In USA
    $2,655.99
    Qty in Cart: 0
    Price:
    $2,655.99
    Subtotal:
  • 80mm 1.45 A/R Switchblade Turbocharger For Detroit Diesel Series 60 12.7L & 14L, Cummins ISX15 & X15 - Up To 800 HP

    80mm 1.45 A/R Switchblade Turbocharger For Detroit Diesel Series 60 12.7L & 14L, Cummins ISX15 & X15 - Up To 800 HP

    SWITCHBLADE TURBO

    $2,515.99
    Switchblade Turbocharger for Cummins ISX15, X15 and Detroit Diesel Series 60 12.7L & 14L Applications* High Quality Switchblade Turbocharger* Significantly Improves Fuel Efficiency By An Estimated 0...
    29-07050019
    SKU:
    29-07050019
    Product Type:
    Engine Parts
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Location:
    Made In USA
    Material Options:
    Aluminum
    $2,515.99
    Qty in Cart: 0
    Price:
    $2,515.99
    Subtotal:
  • On Sale
    Limited Quantity Available
    Prestone Extended Life 50/50 Antifreeze - 1 Gallon

    Prestone Extended Life 50/50 Antifreeze - 1 Gallon

    AFTERMARKET

    Now: $3.99
    Was: $9.99
    Prestone All Vehicle - Antifreeze + CoolantPrestone Extended Life 50/50 Antifreeze prevents corrosion and helps keep the cooling system running more efficiently. It provides protection against...
    09-0702083
    SKU:
    09-0702083
    Product Type:
    Engine Parts
    Truck Class:
    Universal
    Make:
    Universal Items
    Ready To Ship:
    Yes
    Now: $3.99
    Was: $9.99
    Qty in Cart: 0
    Price:
    Now: $3.99
    Was: $9.99
    Subtotal:
  • O- Ring Seal 78 Duro, 1 OD, 0.765 ID

    O- Ring Seal 78 Duro, 1 OD, 0.765 ID

    AUTOMANN USA

    $1.27
    O- Ring Seal Replaces169-7487* High Quality O- Ring Seal Caterpillar* Dimensions:  - 1 Inch OD  - 0.765 Inch ID* 78 Durometer* Sold Individually* Warranty On O- Ring Seal Caterpillars Against Defects...
    29-07200008
    SKU:
    29-07200008
    Truck Class:
    Heavy Duty
    Material Options:
    Plastic/Poly
    Make:
    Universal Items
    Product Type:
    Engine Parts
    $1.27
    Qty in Cart: 0
    Price:
    $1.27
    Subtotal:
  • Intake Manifold Gasket For Paccar MX13

    Intake Manifold Gasket For Paccar MX13

    AUTOMANN USA

    $11.45
    Intake Manifold Gasket Replaces 1907399Pe, 261.390, 261390* High Quality Intake Manifold Gasket* Sold Individually* Warranty On Intake Manifold Gaskets Against Defects In Workmanship & Material From...
    29-07120057
    SKU:
    29-07120057
    Truck Class:
    Heavy Duty
    Material Options:
    Rubber
    Make:
    Universal Items
    Product Type:
    Engine Parts
    $11.45
    Qty in Cart: 0
    Price:
    $11.45
    Subtotal:
  • O- Ring Seal 90 Duro, 1.15 OD, 0.984 ID

    O- Ring Seal 90 Duro, 1.15 OD, 0.984 ID

    AUTOMANN USA

    $1.20
    O- Ring Seal Replaces 3D2824, 3H6850, 8U0222* High Quality O- Ring Seal Caterpillar* Dimensions:  - 1.15 Inch OD  - 0.984 Inch ID* 90 Durometer* Sold Individually* Warranty On O- Ring Seal...
    29-07200007
    SKU:
    29-07200007
    Truck Class:
    Heavy Duty
    Material Options:
    Plastic/Poly
    Make:
    Universal Items
    Product Type:
    Engine Parts
    $1.20
    Qty in Cart: 0
    Price:
    $1.20
    Subtotal:
  • Oil Cooler Gasket Kit For Paccar MX11 MX13

    Oil Cooler Gasket Kit For Paccar MX11 MX13

    AUTOMANN USA

    $24.67
    Oil Cooler Gasket Kit Replaces 1643076Pe, 279.590, 1643076* High Quality Oil Cooler Gasket Kit* Sold Individually* Warranty On Oil Cooler Gasket Kits Against Defects In Workmanship & Material From...
    29-07120056
    SKU:
    29-07120056
    Truck Class:
    Heavy Duty
    Material Options:
    Rubber
    Make:
    Universal Items
    Product Type:
    Engine Parts
    $24.67
    Qty in Cart: 0
    Price:
    $24.67
    Subtotal:
  • 47 Inch Oil Pan Gasket For Detroit 60 Series

    47 Inch Oil Pan Gasket For Detroit 60 Series

    AUTOMANN USA

    $38.33
    Detroit Series 60 Oil Pan Seal Replaces DDE23522279, 23522279, DDE23539104, And 23539104Avoid engine damage and maintain proper oil levels with this 47-Inch Oil Pan Gasket for Detroit 60 Series...
    29-0720006
    SKU:
    29-0720006
    Truck Class:
    Heavy Duty
    Material Options:
    Rubber
    Make:
    Universal Items
    Product Type:
    Engine Parts
    $38.33
    Qty in Cart: 0
    Price:
    $38.33
    Subtotal:
  • Oil Drain Plug O-Ring # 203 - Replaces1093207, 1814695C1

    Oil Drain Plug O-Ring # 203 - Replaces1093207, 1814695C1

    AUTOMANN USA

    $1.93
    Oil Pan Drain Plug O-Ring 0.925 ID X 1.19 OD* High Quality O-Ring Seal* Dimensions:  - 0.925 Inch I.D.  - 1.19 Inch O.D.* Sold Individually* Warranty On O-Ring Seals Against Defects In Workmanship &...
    29-07200003
    SKU:
    29-07200003
    Truck Class:
    Heavy Duty
    Material Options:
    Plastic/Poly
    Make:
    Universal Items
    Product Type:
    Engine Parts
    $1.93
    Qty in Cart: 0
    Price:
    $1.93
    Subtotal:
  • O- Ring Seal 90 Duro, 0.62 OD, 0.5 ID For Caterpillar Engine

    O- Ring Seal 90 Duro, 0.62 OD, 0.5 ID For Caterpillar Engine

    AUTOMANN USA

    $1.20
    Caterpillar O- Ring Seal Replaces 0336042, 321229* High Quality O- Ring Seal Caterpillar* Dimensions:  - 0.625 Inch OD  - 0.5 Inch ID* 90 Durometer* Sold Individually* Warranty On O- Ring Seal...
    29-07200006
    SKU:
    29-07200006
    Truck Class:
    Heavy Duty
    Material Options:
    Plastic/Poly
    Make:
    Universal Items
    Product Type:
    Engine Parts
    $1.20
    Qty in Cart: 0
    Price:
    $1.20
    Subtotal:
  • Engine Oil Cooler Gasket For DD13 DD15 DD16, Elring Original

    Engine Oil Cooler Gasket For DD13 DD15 DD16, Elring Original

    AFTERMARKET

    $50.99
    Oil Cooler Gasket Replaces 003.100, A4721841980, 003100V* High Quality Oil Cooler Gasket* Sold Individually* Warranty On Oil Cooler Gaskets Against Defects In Workmanship & Material From Date Of...
    29-07120055
    SKU:
    29-07120055
    Truck Class:
    Heavy Duty
    Material Options:
    Rubber
    Make:
    Universal Items
    Product Type:
    Engine Parts
    $50.99
    Qty in Cart: 0
    Price:
    $50.99
    Subtotal:
  • Rubber 90 Degree Reducing Elbow 7 ID to 5 ID Inch

    Rubber 90 Degree Reducing Elbow 7 ID to 5 ID Inch

    AFTERMARKET

    $137.99
    90 Degree Rubber Reducing Elbow* High Quality Elbow* Rubber* 90 Degree* Made In USA* Sold Individually* Warranty On Elbows Against Defects In Workmanship & Material From Date Of Purchase*** High...
    29-08030003
    SKU:
    29-08030003
    Truck Class:
    Heavy Duty
    Material Options:
    Rubber
    Make:
    Universal Items
    Product Type:
    Engine Parts
    Diameter Options:
    7 Inch
    Degree Options:
    90
    Style Options:
    Elbow
    $137.99
    Qty in Cart: 0
    Price:
    $137.99
    Subtotal:
  • Poly Transmission Isolator Bushing Replaces 21244FUL, 23311, 176640 For Eaton Fuller

    Poly Transmission Isolator Bushing Replaces 21244FUL, 23311, 176640 For Eaton Fuller

    AFTERMARKET

    $33.48
    Eaton Fuller Transmission Isolator BushingEnhance drivetrain performance with this High-Quality Poly Transmission Isolator Bushing for Eaton Fuller. Its durable poly construction and dimensions-2.35"...
    29-07050007
    SKU:
    29-07050007
    Truck Class:
    Heavy Duty
    Material Options:
    Plastic/Poly
    Make:
    Universal Items
    Product Type:
    Engine Parts
    $33.48
    Qty in Cart: 0
    Price:
    $33.48
    Subtotal:
  • Holset Cummins Turbocharger - No Waste Gate - 4033165H

    Holset Cummins Turbocharger - No Waste Gate - 4033165H

    AREA DIESEL SERVICE

    $1,058.99
    Turbocharger HT38 Cummins* High Quality Turbo* No Waste Gate* Made In USA* Sold Individually* Warranty On Turbos Against Defects In Workmanship & Material From Date Of Purchase*** High Quality...
    09-0704112
    SKU:
    09-0704112
    Material Options:
    Steel
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Product Type:
    Engine Parts
    $1,058.99
    Qty in Cart: 0
    Price:
    $1,058.99
    Subtotal:
  • Cylinder Head Bolt Kit 1822166PE, 259.561 For Paccar MX13

    Cylinder Head Bolt Kit 1822166PE, 259.561 For Paccar MX13

    AFTERMARKET

    $334.99
    Paccar MX13 Cylinder Head Bolt Kit* High Quality Bolt Kit* Cylinder Head * Sold Individually* Warranty On Bolt Kits Against Defects In Workmanship & Material From Date Of Purchase*** High Quality...
    29-07040031
    SKU:
    29-07040031
    Material Options:
    Steel
    Truck Class:
    Universal
    Make:
    Universal Items
    Product Type:
    Engine Parts
    $334.99
    Qty in Cart: 0
    Price:
    $334.99
    Subtotal:
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Frequently Asked Questions About Mack RD Truck Engine Parts & Cooling

What types of components are included in this category?

This category covers engine and cooling system parts for Mack RD model trucks, including items such as radiators, radiator hoses, water pumps, fan clutches, cooling fans, thermostats, oil coolers, and related gaskets and mounting hardware. These parts work together to keep the engine running at a safe operating temperature and support proper engine function.

How do I know a part will fit my specific Mack RD truck?

Mack RD trucks were built over several years with different engine configurations, so fitment can vary by model year and engine type. Before ordering, check your truck's VIN and engine model against the part's listed specifications, or reach out to our parts team with your truck's details so we can confirm compatibility before you buy.

What are common signs that a cooling system part needs to be replaced?

Watch for symptoms like the engine running hotter than normal, coolant leaks under the truck, a fan clutch that stays engaged or never engages, low coolant levels without an obvious leak, or visible corrosion and cracking on hoses and radiator seams. Catching these issues early can help prevent more serious engine damage.

Should I choose OEM or aftermarket parts for my Mack RD engine?

Both OEM and quality aftermarket cooling and engine parts can be reliable choices, and the right option often depends on your budget, availability, and how the truck is used. We carry a mix of OEM and aftermarket options so you can compare fit, materials, and price to find the part that best suits your needs.

Do I need professional installation for engine and cooling parts?

Some parts, like hoses, thermostats, or belts, are straightforward enough for an experienced DIY mechanic with the right tools. Others, such as water pumps, fan clutches, or radiators, may involve draining coolant, disconnecting engine components, or working near pressurized systems, so many owners choose to have these installed by a qualified diesel technician to ensure proper sealing and function.


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