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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
  • Oil Feed Line Replaces 2072805 For Caterpillar Turbocharger

    Oil Feed Line Replaces 2072805 For Caterpillar Turbocharger

    FULL TILT PERFORMANCE

    $262.64
    Caterpillar Turbocharger Oil Feed Line* High Quality Feed Line* Made In USA* Sold Individually* Warranty On Feed Lines Against Defects In Workmanship & Material From Date Of Purchase*** High Quality...
    FLT-41015
    SKU:
    FLT-41015
    Product Type:
    Engine Parts
    Location:
    Made In USA
    Style Options:
    Caterpillar
    Make:
    Universal Items
    $262.64
    Qty in Cart: 0
    Price:
    $262.64
    Subtotal:
  • Stainless Steel Exhaust Manifold Spacers For Cummins ISX Engine

    Stainless Steel Exhaust Manifold Spacers For Cummins ISX Engine

    FULL TILT PERFORMANCE

    $262.64
    Cummins ISX Exhaust Manifold SpacersThese stainless steel exhaust manifold spacers are designed specifically for Cummins engines. Made in the USA from corrosion-resistant material, they deliver...
    FLT-36100
    SKU:
    FLT-36100
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $262.64
    Qty in Cart: 0
    Price:
    $262.64
    Subtotal:
  • AC Refrigerant Oil PAG 150UV - 8 OZ For R-134a Systems

    AC Refrigerant Oil PAG 150UV - 8 OZ For R-134a Systems

    JOHNSEN'S

    $11.43
    Premium AC Refrigerant Oil With UV Dye - Easy Leak DetectionThis PAG 150 oil works with R134a A/C systems. It helps keep all the moving parts working smoothly while protecting your system from...
    6822UV
    SKU:
    6822UV
    Product Type:
    Engine Parts
    Height Options:
    7 Inch
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $11.43
    Qty in Cart: 0
    Price:
    $11.43
    Subtotal:
  • STP Oil Treatment 15 Oz

    STP Oil Treatment 15 Oz

    AFTERMARKET

    $5.19
    Anti-Wear Agent With Viscosity Improver* High Quality Oil Treatment* 15 Ounce* Helps Protect Against Engine Wear* High Viscosity* Sold Individually* Warranty On Oil Treatments Against Defects In...
    65148
    SKU:
    65148
    Height Options:
    8 Inch
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $5.19
    Qty in Cart: 0
    Price:
    $5.19
    Subtotal:
  • Oil Pump 23527448 For Series 60 Detroit Diesel 14.0L

    Oil Pump 23527448 For Series 60 Detroit Diesel 14.0L

    AFTERMARKET

    $754.99
    Replacement Detroit Diesel Oil Pump* High Quality Oil Pump* Made In USA* Sold Individually* Warranty On Oil Pumps Against Defects In Workmanship & Material From Date Of Purchase*** High Quality...
    29-07200002
    SKU:
    29-07200002
    Product Type:
    Engine Parts
    Make:
    Universal Items
    Style Options:
    Detroit
    $754.99
    Qty in Cart: 0
    Price:
    $754.99
    Subtotal:
  • Full Tilt 1:32 AR X 78mm Stage 1 Turbocharger For Caterpillar

    Full Tilt 1:32 AR X 78mm Stage 1 Turbocharger For Caterpillar

    FULL TILT PERFORMANCE

    $2,717.99
    Caterpillar 78mm Stage 1 TurbochargerThis high-performance turbocharger is designed specifically for 1990-2003 Caterpillar engines. It features a non-wastegated design with a 78mm intake and 1.32 AR...
    29-0704128
    SKU:
    29-0704128
    Product Type:
    Engine Parts
    Style Options:
    Caterpillar
    Location:
    Made In USA
    Make:
    Universal Items
    $2,717.99
    Qty in Cart: 0
    Price:
    $2,717.99
    Subtotal:
  • BESTfit 6 Inch ID 45 Degree Rubber Air Intake Elbow

    BESTfit 6 Inch ID 45 Degree Rubber Air Intake Elbow

    BESTFIT TRUCK PARTS

    $66.99
    6 Inch ID 45-Degree Exhaust Elbow* High Quality Elbow* 45 Degree* Made Of Rubber* 6 Inch Inner Diameter* Made In USA* Sold Individually* Warranty On Elbows Against Defects In Workmanship & Material...
    09-0905007
    SKU:
    09-0905007
    Degree Options:
    45
    Material Options:
    Rubber
    Diameter Options:
    6 Inch
    Make:
    Universal Items
    Product Type:
    Engine Parts
    $66.99
    Qty in Cart: 0
    Price:
    $66.99
    Subtotal:
  • 3.78 X 4.57 Inch Stainless Steel Super Seal Clamp

    3.78 X 4.57 Inch Stainless Steel Super Seal Clamp

    AUTOMANN USA

    $9.90
    Super Seal Worm Drive Clamp* High Quality Clamp* 304 Stainless Steel* Dimensions:  - 3.78 Inch To 4.57 Inch Diameter  - 0.570 Inch Wide  - 5/16 Inch hex Screw* Meets SAE J1508* Corrosion Resistance*...
    09-07020018
    SKU:
    09-07020018
    Product Type:
    Engine Parts
    Make:
    Universal Items
    Material Options:
    Stainless Steel
    $9.90
    Qty in Cart: 0
    Price:
    $9.90
    Subtotal:
  • 78mm 1.45 A/R Switchblade Turbocharger For Detroit Diesel Series 60 12.7L & 14L, Cummins ISX15 & X15 - Up To 750 HP For Detroit Diesel and Cummins

    78mm 1.45 A/R Switchblade Turbocharger For Detroit Diesel Series 60 12.7L & 14L, Cummins ISX15 & X15 - Up To 750 HP For Detroit Diesel and Cummins

    SWITCHBLADE TURBO

    $2,375.99
    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...
    29-07050022
    SKU:
    29-07050022
    Location:
    Made In USA
    Make:
    Universal Items
    Product Type:
    Engine Parts
    Style Options:
    Cummins
    $2,375.99
    Qty in Cart: 0
    Price:
    $2,375.99
    Subtotal:
  • 80mm 1.45 A/R Switchblade Turbocharger For Caterpillar 3406 A, B, C, E, 6NZ Up To 800 HP For Caterpillar Engine

    80mm 1.45 A/R Switchblade Turbocharger For Caterpillar 3406 A, B, C, E, 6NZ Up To 800 HP For Caterpillar Engine

    SWITCHBLADE TURBO

    $2,515.99
    Switchblade Turbocharger for Caterpillar 3406 Applications* High Quality Switchblade Turbocharger* Significantly Improves Fuel Efficiency By An Estimated 0.5 MPG - 1.5 MPG, Sometimes More* Includes: ...
    29-07050019-C
    SKU:
    29-07050019-C
    Product Type:
    Engine Parts
    Location:
    Made In USA
    Make:
    Universal Items
    Degree Options:
    90
    Style Options:
    Caterpillar
    $2,515.99
    Qty in Cart: 0
    Price:
    $2,515.99
    Subtotal:
  • 78mm 1.45 A/R Switchblade Turbocharger For Caterpillar 3406 A, B, C, E, 6NZ Up To 750 HP For Caterpillar

    78mm 1.45 A/R Switchblade Turbocharger For Caterpillar 3406 A, B, C, E, 6NZ Up To 750 HP For Caterpillar

    SWITCHBLADE TURBO

    $2,375.99
    Switchblade Turbocharger for Caterpillar 3406 Applications* High Quality Switchblade Turbocharger* Significantly Improves Fuel Efficiency By An Estimated 0.5 MPG - 1.5 MPG, Sometimes More* 1.45 Air...
    29-07050022-C
    SKU:
    29-07050022-C
    Product Type:
    Engine Parts
    Location:
    Made In USA
    Make:
    Universal Items
    Style Options:
    Caterpillar
    $2,375.99
    Qty in Cart: 0
    Price:
    $2,375.99
    Subtotal:
  • 82mm 1.45 A/R Switchblade Turbocharger For Caterpillar 3406 A, B, C, E, 6NZ Up To 825 HP For Caterpillar Engine

    82mm 1.45 A/R Switchblade Turbocharger For Caterpillar 3406 A, B, C, E, 6NZ Up To 825 HP For Caterpillar Engine

    SWITCHBLADE TURBO

    $2,655.99
    Switchblade Turbocharger for Caterpillar 3406 Applications* High Quality Switchblade Turbocharger* Significantly Improves Fuel Efficiency By An Estimated 0.5 MPG - 1.5 MPG, Sometimes More* Includes: ...
    29-07050020-C
    SKU:
    29-07050020-C
    Product Type:
    Engine Parts
    Location:
    Made In USA
    Make:
    Universal Items
    Degree Options:
    90
    Style Options:
    Caterpillar
    $2,655.99
    Qty in Cart: 0
    Price:
    $2,655.99
    Subtotal:
  • 78mm 1.32 A/R Switchblade Turbocharger For Caterpillar 3406 A, B, C, E, 6NZ Up To 700 HP For Caterpillar

    78mm 1.32 A/R Switchblade Turbocharger For Caterpillar 3406 A, B, C, E, 6NZ Up To 700 HP For Caterpillar

    SWITCHBLADE TURBO

    $2,375.99
    Switchblade Turbocharger for Caterpillar 3406 Applications* High Quality Switchblade Turbocharger* Significantly Improves Fuel Efficiency By An Estimated 0.5 MPG - 1.5 MPG, Sometimes More* 1.32 Air...
    29-07050021-C
    SKU:
    29-07050021-C
    Product Type:
    Engine Parts
    Location:
    Made In USA
    Make:
    Universal Items
    Style Options:
    Caterpillar
    $2,375.99
    Qty in Cart: 0
    Price:
    $2,375.99
    Subtotal:
  • 75mm 1.32 A/R Switchblade Turbocharger For Caterpillar 3406 A, B, C, E, 6NZ Up To 600 HP For Caterpillar Engine

    75mm 1.32 A/R Switchblade Turbocharger For Caterpillar 3406 A, B, C, E, 6NZ Up To 600 HP For Caterpillar Engine

    SWITCHBLADE TURBO

    $2,235.99
    Switchblade Turbocharger for Caterpillar 3406 Applications* High Quality Switchblade Turbocharger* Significantly Improves Fuel Efficiency By An Estimated 0.5 MPG - 1.5 MPG, Sometimes More* Includes: ...
    29-07050018-C
    SKU:
    29-07050018-C
    Product Type:
    Engine Parts
    Location:
    Made In USA
    Make:
    Universal Items
    Degree Options:
    90
    Style Options:
    Caterpillar
    $2,235.99
    Qty in Cart: 0
    Price:
    $2,235.99
    Subtotal:
  • Oil Pressure Sensor Replaces 23511176, 23532797 For Detroit Diesel Series 60

    Oil Pressure Sensor Replaces 23511176, 23532797 For Detroit Diesel Series 60

    AFTERMARKET

    $47.63
    Replacement ATP Detroit Diesel Oil Pressure SensorThis high-quality oil pressure sensor is engineered to deliver accurate pressure readings for heavy-duty engine lubrication systems. It features a 2...
    29-07100035
    SKU:
    29-07100035
    Product Type:
    Engine Parts
    Style Options:
    Detroit
    Make:
    Universal Items
    $47.63
    Qty in Cart: 0
    Price:
    $47.63
    Subtotal:
  • Temperature Sensor A026C842 For Cummins

    Temperature Sensor A026C842 For Cummins

    AUTOMANN USA

    $25.91
    Replacement Temperature SensorThis replacement Cummins TMP-AIRPAX temperature sensor is a two-pin device specifically designed for monitoring engine oil, coolant, or transmission fluid temperatures...
    29-07100029
    SKU:
    29-07100029
    Product Type:
    Engine Parts
    Material Options:
    Brass
    Make:
    Universal Items
    $25.91
    Qty in Cart: 0
    Price:
    $25.91
    Subtotal:
  • Fuel Pressure Sensor Replaces A0081534828 For Detroit Diesel

    Fuel Pressure Sensor Replaces A0081534828 For Detroit Diesel

    AFTERMARKET

    $51.99
    Replacement Detroit Diesel Fuel Pressure SensorThis high-quality fuel pressure sensor is engineered to deliver accurate monitoring of fuel system performance on modern heavy-duty engines. It features...
    29-07100006
    SKU:
    29-07100006
    Product Type:
    Engine Parts
    Style Options:
    Detroit
    Make:
    Universal Items
    $51.99
    Qty in Cart: 0
    Price:
    $51.99
    Subtotal:
  • Oil Pressure Sensor Replaces A0071530828, A0111539228 For Detroit Diesel DD15

    Oil Pressure Sensor Replaces A0071530828, A0111539228 For Detroit Diesel DD15

    AFTERMARKET

    $41.21
    Detroit Diesel DD15 ?Oil Pressure SensorKeep your Detroit Diesel DD15 engine performing efficiently with this high-quality Oil Pressure Sensor, replacing A0071530828 and A0111539228. Measuring 2.142...
    29-07100003
    SKU:
    29-07100003
    Product Type:
    Engine Parts
    Style Options:
    Detroit
    Make:
    Universal Items
    $41.21
    Qty in Cart: 0
    Price:
    $41.21
    Subtotal:
  • Air Brake Camshaft Passenger Side Replaces 2210K7499, 2210-K-7499

    Air Brake Camshaft Passenger Side Replaces 2210K7499, 2210-K-7499

    AFTERMARKET

    $92.99
    Replacement Air Brake CamshaftThis high-quality camshaft is engineered for dependable operation in heavy-duty brake systems, providing the precise rotational movement needed for smooth and consistent...
    09-05170116
    SKU:
    09-05170116
    Product Type:
    Engine Parts
    Length Options:
    10 1/2 Inch
    Position:
    Passenger Side
    Make:
    Universal Items
    $92.99
    Qty in Cart: 0
    Price:
    $92.99
    Subtotal:
  • Harness Injector Dozer Kit For Cummins Dozer

    Harness Injector Dozer Kit For Cummins Dozer

    JML KUSTOMS

    $16.81
    Harness Injector Cummins Dozer KitThis heavy-duty injector harness kit is built with 16 AWG nylon/copper wiring and is designed for use with Cummins-powered dozers. It features a plug-and-play design...
    29-16030021
    SKU:
    29-16030021
    Product Type:
    Engine Parts
    Material Options:
    Copper
    Make:
    Universal Items
    $16.81
    Qty in Cart: 0
    Price:
    $16.81
    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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