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Mack R Truck Engine Parts & Cooling

Looking to keep your rig running smoothly? Check out 4 State Trucks for top-notch Mack R Truck engine parts and cooling components. Our selection has everything you need for a strong performance.
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  • Price
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  • Oil Dipstick 47.5 Inch Replaces A4710100472, DDEA4710100472 For Detroit Engine DD13

    Oil Dipstick 47.5 Inch Replaces A4710100472, DDEA4710100472 For Detroit Engine DD13

    AUTOMANN USA

    $29.68
    Detroit Diesel Engine Oil DipstickLooking for a oil level indicator? This replacement Oil Dipstick is designed for various Detroit Diesel and Freightliner models. It makes checking your engine oil...
    29-07200001
    SKU:
    29-07200001
    Truck Class:
    Heavy Duty
    Product Type:
    Engine Parts
    Make:
    Universal Items
    Length Options:
    47 1/4 Inch
    $29.68
    Qty in Cart: 0
    Price:
    $29.68
    Subtotal:
  • Water Pump Replaces 3803361 3803605, RW1073, RW1073X, RW6073 For Cummins N14-310/330/350/370/410

    Water Pump Replaces 3803361 3803605, RW1073, RW1073X, RW6073 For Cummins N14-310/330/350/370/410

    AFTERMARKET

    $281.99
    Multi Groove Engine Water PumpDeliver reliable cooling to your Cummins N14 engine with this high-quality replacement water pump. Constructed of steel, with a multi-groove pulley and 6-bolt mounting,...
    29-07120010
    SKU:
    29-07120010
    Material Options:
    Steel
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $281.99
    Qty in Cart: 0
    Price:
    $281.99
    Subtotal:
  • Belt Tensioner Assembly 1.826 X 2.952 Inch Pulley

    Belt Tensioner Assembly 1.826 X 2.952 Inch Pulley

    AFTERMARKET

    $236.99
    Drive Belt Tensioner Assembly* High Quality Tensioner Assembly* Steel And Poly* Dimensions:  - 1.826 Inch Pulley Width  - 2.952 Inch Pulley OD* Made In USA* Sold Individually* Warranty On Tensioner...
    29-07060049
    SKU:
    29-07060049
    Product Type:
    Engine Parts
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    $236.99
    Qty in Cart: 0
    Price:
    $236.99
    Subtotal:
  • Poly- V Ribbed Serpentine Belt 53.90 Inch Replaces 4050539

    Poly- V Ribbed Serpentine Belt 53.90 Inch Replaces 4050539

    AUTOMANN USA

    $26.43
    53.90 Inch Poly- V Serpentine Belt Replaces 5K538, K050538, 4050539* High Quality V Serpentine Belt* Dimensions:  - 53.90 Inch Effective Length  - 54.30 Inch Outside Length* 5 Ribs* Sold...
    29-07060073
    SKU:
    29-07060073
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $26.43
    Qty in Cart: 0
    Price:
    $26.43
    Subtotal:
  • Belt Tensioner Assembly - 39120, 49464, 89395DAY

    Belt Tensioner Assembly - 39120, 49464, 89395DAY

    AFTERMARKET

    $124.99
    Drive Belt Tensioner Assembly with 2 Pulleys* High Quality Belt Tensioner Assembly* Dimensions:  - 1.072 Inch/ 1.031 Inch Pulley Width  - 2.968 Inch/ 3 Inch Pulley OD* 6 Grooves* Made In USA* Sold...
    29-07060053
    SKU:
    29-07060053
    Product Type:
    Engine Parts
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    $124.99
    Qty in Cart: 0
    Price:
    $124.99
    Subtotal:
  • Belt Tensioner Assembly 1.830 X 2.952 Inch Pulley

    Belt Tensioner Assembly 1.830 X 2.952 Inch Pulley

    AFTERMARKET

    $213.99
    Drive Belt Tensioner Assembly* High Quality Tensioner Assembly* Steel And Poly* Dimensions:  - 1.830 Inch Pulley Width   - 2.952 Inch Pulley OD* Made In USA* Sold Individually* Warranty On Tensioner...
    29-07060045
    SKU:
    29-07060045
    Product Type:
    Engine Parts
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    Width Options:
    1 3/4 Inch
    Diameter Options:
    3 Inch
    $213.99
    Qty in Cart: 0
    Price:
    $213.99
    Subtotal:
  • Belt Tensioner Assembly 1.574 X 2.952 Inch Pulley

    Belt Tensioner Assembly 1.574 X 2.952 Inch Pulley

    AFTERMARKET

    $134.99
    Drive Belt Tensioner Assembly* High Quality Tensioner Assembly* Steel And Poly* Dimensions:  - 1.574 Inch Pulley Width   - 2.952 Inch Pulley OD* Made In USA* Sold Individually* Warranty On Tensioner...
    29-07060050
    SKU:
    29-07060050
    Product Type:
    Engine Parts
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    Width Options:
    1 1/2 Inch
    Diameter Options:
    3 Inch
    $134.99
    Qty in Cart: 0
    Price:
    $134.99
    Subtotal:
  • Belt Tensioner Assembly 1.692 X 2.913 Inch Pulley

    Belt Tensioner Assembly 1.692 X 2.913 Inch Pulley

    AFTERMARKET

    $208.99
    Drive Belt Tensioner Assembly* High Quality Tensioner Assembly* Steel And Poly* Dimensions:  - 1.692 Inch Pulley Width  - 2.913 Inch Pulley OD* 10 Grooves* Made In USA* Sold Individually* Warranty On...
    29-07060048
    SKU:
    29-07060048
    Product Type:
    Engine Parts
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    Diameter Options:
    2 3/4 Inch
    Width Options:
    1 5/8 Inch
    $208.99
    Qty in Cart: 0
    Price:
    $208.99
    Subtotal:
  • Belt Tensioner Assembly 1.871 X 2.952 Inch Pulley

    Belt Tensioner Assembly 1.871 X 2.952 Inch Pulley

    AFTERMARKET

    $294.99
    Drive Belt Tensioner Assembly* High Quality Tensioner Assembly* Steel And Poly* Dimensions:  - 1.871 Inch Pulley Width   - 2.952 Inch Pulley OD* Made In USA* Sold Individually* Warranty On Tensioner...
    29-07060047
    SKU:
    29-07060047
    Product Type:
    Engine Parts
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    Width Options:
    1 3/4 Inch
    Diameter Options:
    3 Inch
    $294.99
    Qty in Cart: 0
    Price:
    $294.99
    Subtotal:
  • Belt Tensioner Assembly 1.811 X 2.952 Inch Pulley

    Belt Tensioner Assembly 1.811 X 2.952 Inch Pulley

    AFTERMARKET

    $246.99
    Drive Belt Tensioner Assembly* High Quality Belt Tensioner Assembly* Steel And Poly* Dimensions:  - 1.811 Inch Pulley Width  - 2.952 Inch Pulley OD* Made In USA* Sold Individually* Warranty On Belt...
    29-07060041
    SKU:
    29-07060041
    Product Type:
    Engine Parts
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    Diameter Options:
    3 Inch
    Width Options:
    1 3/4 Inch
    $246.99
    Qty in Cart: 0
    Price:
    $246.99
    Subtotal:
  • Belt Tensioner Assembly 1.279 X 2.952 Inch Pulley

    Belt Tensioner Assembly 1.279 X 2.952 Inch Pulley

    AFTERMARKET

    $194.99
    Drive Belt Tensioner Assembly* High Quality Tensioner Assembly* Steel And Poly* Dimensions:  - 1.279 Inch Pulley Width  - 2.952 Inch Pulley OD* Made In USA* Sold Individually* Warranty On Tensioner...
    29-07060046
    SKU:
    29-07060046
    Product Type:
    Engine Parts
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    Width Options:
    1 1/4 Inch
    Diameter Options:
    3 Inch
    $194.99
    Qty in Cart: 0
    Price:
    $194.99
    Subtotal:
  • Belt Tensioner Assembly 1.299 X 3 Inch Pulley

    Belt Tensioner Assembly 1.299 X 3 Inch Pulley

    AFTERMARKET

    $112.99
    Drive Belt Tensioner Assembly* High Quality Tensioner Assembly* Steel And Poly* Dimensions:  - 1.299 Inch Pulley Width  - 3.00 Inch Pulley OD* Made In USA* Sold Individually* Warranty On Tensioner...
    29-07060043
    SKU:
    29-07060043
    Product Type:
    Engine Parts
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    $112.99
    Qty in Cart: 0
    Price:
    $112.99
    Subtotal:
  • Belt Tensioner Assembly 0.131 X 3.023 Inch Pulley

    Belt Tensioner Assembly 0.131 X 3.023 Inch Pulley

    AFTERMARKET

    $221.99
    Drive Belt Tensioner Assembly* High Quality Tensioner Assembly* Steel And Poly* Dimensions:  - 0.131 Inch Pulley Width  - 3.023 Inch Pulley OD* 8 Grooves* Made In USA* Sold Individually* Warranty On...
    29-07060044
    SKU:
    29-07060044
    Product Type:
    Engine Parts
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    Diameter Options:
    3 Inch
    Width Options:
    1/4 Inch
    $221.99
    Qty in Cart: 0
    Price:
    $221.99
    Subtotal:
  • Belt Tensioner Assembly 1.20 X 2.992 OD Pulley

    Belt Tensioner Assembly 1.20 X 2.992 OD Pulley

    AFTERMARKET

    $71.99
    Belt Tensioner Assembly* High Quality Belt Tensioner Assembly* Steel And Poly* Dimensions:  - 1.20 Inch Pulley Width  - 2.992 Inch Pulley OD* Made In USA* Sold Individually* Warranty On Belt...
    29-07060037
    SKU:
    29-07060037
    Product Type:
    Engine Parts
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    Width Options:
    1 1/4 Inch
    Diameter Options:
    3 Inch
    $71.99
    Qty in Cart: 0
    Price:
    $71.99
    Subtotal:
  • Belt Tensioner Assembly 1.574 X 2.952 Pulley

    Belt Tensioner Assembly 1.574 X 2.952 Pulley

    AFTERMARKET

    $212.99
    Drive Belt Tensioner Assembly* High Quality Tensioner Assembly* Steel And Poly* Dimensions:  - 1.574 Inch Pulley Width  - 2.952 Inch Pulley OD* Made In USA* Sold Individually* Warranty On Tensioner...
    29-07060042
    SKU:
    29-07060042
    Product Type:
    Engine Parts
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    Width Options:
    1 1/2 Inch
    Diameter Options:
    3 Inch
    $212.99
    Qty in Cart: 0
    Price:
    $212.99
    Subtotal:
  • Belt Tensioner Assembly 1.090 X 2.99 Inch Pulley

    Belt Tensioner Assembly 1.090 X 2.99 Inch Pulley

    AFTERMARKET

    $208.99
    Drive Belt Tensioner Assembly* High Quality Belt Tensioner Assembly* Steel And Poly* Dimensions:  - 1.090 Inch Pulley Width  - 2.99 Inch Pulley OD* Made In USA* Sold Individually* Warranty On Belt...
    29-07060039
    SKU:
    29-07060039
    Product Type:
    Engine Parts
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    Diameter Options:
    3 Inch
    Width Options:
    1 1/16 Inch
    $208.99
    Qty in Cart: 0
    Price:
    $208.99
    Subtotal:
  • Belt Tensioner Assembly .75 X 2.76 Inch Pulley

    Belt Tensioner Assembly .75 X 2.76 Inch Pulley

    AFTERMARKET

    $370.99
    Drive Belt Tensioner Assembly* High Quality Belt Tensioner Assembly* Steel And Poly* Dimensions:  - 0.75 Inch Pulley Width  - 2.76 Inch Pulley OD* Made In USA* Sold Individually* Warranty On Belt...
    29-07060040
    SKU:
    29-07060040
    Product Type:
    Engine Parts
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    Width Options:
    3/4 Inch
    Diameter Options:
    2 3/4 Inch
    $370.99
    Qty in Cart: 0
    Price:
    $370.99
    Subtotal:
  • Belt Tensioner Assembly 1.42 X 3.54 Pulley Replaces 49326, 89430DAY, 38256,15021742, 150217420, 150292568

    Belt Tensioner Assembly 1.42 X 3.54 Pulley Replaces 49326, 89430DAY, 38256,15021742, 150217420, 150292568

    AFTERMARKET

    $190.99
    Belt Tensioner Assembly 1.42 X 3.54 Pulley* High Quality Belt Tensioner Assembly* Steel And Poly* Dimensions:  - 1.42 Inch Pulley Width  - 3.54 Inch Pulley OD* Made In USA* Sold Individually*...
    29-07060038
    SKU:
    29-07060038
    Product Type:
    Engine Parts
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    $190.99
    Qty in Cart: 0
    Price:
    $190.99
    Subtotal:
  • RG3 Portable Refrigerant Recovery Machine – 115V, 60HZ, 1/3 HP, Single Cylinder

    RG3 Portable Refrigerant Recovery Machine – 115V, 60HZ, 1/3 HP, Single Cylinder

    AFTERMARKET

    $1,304.99
    RG6 AC Portable Recovery Machine for Both Liquid and Vapor RefrigerantLooking for a reliable vacuum pump for your air conditioning and refrigeration needs? Check out this VacuMaster Single-Stage...
    09-07120002
    SKU:
    09-07120002
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $1,304.99
    Qty in Cart: 0
    Price:
    $1,304.99
    Subtotal:
  • SS Super-Seal Hose Clamp 3.03 to 3.78 Inch

    SS Super-Seal Hose Clamp 3.03 to 3.78 Inch

    AUTOMANN USA

    $9.90
    304 Stainless Steel Super-Seal Clamp* High Quality Clamp* Stainless Steel* 3.03 Inch To 3.78 Inch* With 410 Stainless Steel Screws * 0.57 Inch Wide Stainless Steel Band (Included)* Torque Range Of 90...
    09-07020013
    SKU:
    09-07020013
    Product Type:
    Engine Parts
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    $9.90
    Qty in Cart: 0
    Price:
    $9.90
    Subtotal:
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Adding your products to cart

Frequently Asked Questions About Mack R Truck Engine Parts & Cooling

What kinds of components are included in this category?

This category covers engine and cooling system components for Mack R Model trucks, including parts such as radiators, water pumps, fan clutches, hoses, thermostats, gaskets, oil coolers, and related engine hardware. These parts are used to keep the engine running at proper operating temperature and to support overall engine performance and longevity.

How do I know if a part will fit my specific Mack R Model truck?

Mack R Model trucks were produced over a long span of years with several engine options, so fitment can vary based on model year, engine type, and configuration. Before ordering, check the part listing for compatible engine families and specifications, and have your truck's VIN and engine identification numbers on hand. If you are unsure, reach out to our parts specialists to confirm fitment before purchasing.

Should I replace cooling system parts individually or as a set?

It depends on the issue you are addressing. If a single component, such as a water pump or thermostat, has failed, replacing that part alone is often sufficient. However, if your cooling system is older or has multiple worn components, replacing related parts like hoses, clamps, and gaskets at the same time can help prevent repeat failures and reduce additional labor down the road.

What are signs that engine cooling parts need to be replaced?

Common warning signs include engine overheating, visible coolant leaks, low coolant levels without an obvious cause, unusual noises from the fan clutch or water pump, and dashboard temperature warnings. Catching these issues early can help prevent more serious engine damage.

Are these parts new, remanufactured, or aftermarket, and does that affect quality?

Product listings will specify whether a part is new, remanufactured, or aftermarket. Each option can be a reliable choice depending on your budget and needs, but it is important to review the listing details and any included warranty information so you know exactly what you are purchasing and can make the best decision for your application.


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