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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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  • BESTfit York Style AC Compressor With 2 Groove Clutch, Two 1/2 Inch Belts, Tube-O Head Type

    BESTfit York Style AC Compressor With 2 Groove Clutch, Two 1/2 Inch Belts, Tube-O Head Type

    BESTFIT TRUCK PARTS

    $567.99
    BESTfit 12V 2 Groove AC Compressor With 2 Cylinders, Keyed Shaft, Diode Protection & LH Suction Port* High Quality AC Compressor And Clutch* 12 Volts* 2 Groove* 6 Inch Clutch Diameter* (2) 1/2 Inch...
    09-070000045
    SKU:
    09-070000045
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Product Type:
    Engine Parts
    $567.99
    Qty in Cart: 0
    Price:
    $567.99
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  • York Style AC Compressor Without Clutch - Replaces ET210L-25150

    York Style AC Compressor Without Clutch - Replaces ET210L-25150

    BESTFIT TRUCK PARTS

    $373.99
    AC Compressor With Tube-O Head & Keyed ShaftThe heavy duty 300-7170 York Style AC Compressor Without Clutch is designed to provide reliable and efficient performance for air conditioning systems. It...
    09-070000044
    SKU:
    09-070000044
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Product Type:
    Engine Parts
    $373.99
    Qty in Cart: 0
    Price:
    $373.99
    Subtotal:
  • BESTfit Sanden 4666 AC Compressor With 119MM 8 Groove Clutch, Horizontal Port, Long Key Shaft

    BESTfit Sanden 4666 AC Compressor With 119MM 8 Groove Clutch, Horizontal Port, Long Key Shaft

    BESTFIT TRUCK PARTS

    $402.99
    BESTfit 12V AC Compressor With 1 Wire Male Bullet, Serpentine Belt, 7 Cylinders* High Quality AC Compressor And Clutch* 12 Volts* 8 Groove* 119 MM Clutch Diameter* Serpentine Belt Type* 7 Cyle...
    09-070000043
    SKU:
    09-070000043
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Product Type:
    Engine Parts
    $402.99
    Qty in Cart: 0
    Price:
    $402.99
    Subtotal:
  • BESTfit Sanden 4664 AC Compressor With 132MM 2 Groove Clutch With Vertical Port, Long Key Shaft

    BESTfit Sanden 4664 AC Compressor With 132MM 2 Groove Clutch With Vertical Port, Long Key Shaft

    BESTFIT TRUCK PARTS

    $367.99
    BESTfit 12V AC Compressor With 1 Wire Male Packard, Male Insert O-Ring & 7 CylindersThis BESTfit AC compressor has a 2 groove design and a clutch diameter of 132mm. It features 7 cylinders and a...
    09-070000042
    SKU:
    09-070000042
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Product Type:
    Engine Parts
    $367.99
    Qty in Cart: 0
    Price:
    $367.99
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  • BESTfit 14.0L Detroit Diesel Engine 60 Series Fuel Check Valve

    BESTfit 14.0L Detroit Diesel Engine 60 Series Fuel Check Valve

    BESTFIT TRUCK PARTS

    $93.99
    14.0L Detroit Diesel 60 Series Fuel Check Valve By BESTfitGrab the BESTfit Fuel Check Valve for your 14.0L Detroit Diesel 60 Series. This aftermarket part helps your engine run smoothly by stopping...
    09-060100003
    SKU:
    09-060100003
    Truck Class:
    Universal
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    Product Type:
    Fuel Tanks
    Ready To Ship:
    Yes
    $93.99
    Qty in Cart: 0
    Price:
    $93.99
    Subtotal:
  • BESTfit 12.7L Detroit Diesel Engine Fuel Check Valve - Size 8

    BESTfit 12.7L Detroit Diesel Engine Fuel Check Valve - Size 8

    BESTFIT TRUCK PARTS

    $62.99
    Size 8 12.7L Detroit Diesel Engine Fuel Check Valve By BESTfitKeep your 12.7L Detroit Diesel running smoothly with the BESTfit Size 8 Fuel Check Valve. Sold Individually. Find the best replacement...
    09-060100002
    SKU:
    09-060100002
    Truck Class:
    Universal
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    Product Type:
    Fuel Tanks
    Ready To Ship:
    Yes
    $62.99
    Qty in Cart: 0
    Price:
    $62.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Axle Shaft Flange Gasket CHR 450877 10

    Axle Shaft Flange Gasket CHR 450877 10

    OPP - ORIGINAL PARTS PROGRAM

    $5.71
    Drive Axle Flange GasketThe Drive Axle Flange Gasket is designed to fit drive axle shaft flanges, preventing leaks in heavy-duty applications. It features a 7" bolt circle diameter, 8.5" outer...
    09-05212011
    SKU:
    09-05212011
    Truck Class:
    Universal
    Make:
    Universal Items
    Product Type:
    Wheels
    Ready To Ship:
    Yes
    $5.71
    Qty in Cart: 0
    Price:
    $5.71
    Subtotal:
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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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