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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.
  • Product
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  • Price
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  • Multi V Ribbed Serpentine Belt 36 Inch - 4050360

    Multi V Ribbed Serpentine Belt 36 Inch - 4050360

    AUTOMANN USA

    $26.76
    5 Rib, 36 Inch Multi V-Belt Replaces 4050360This high-quality aftermarket serpentine belt closely matches the original factory installed belt with its straight ribbed construction. Its new...
    29-07060067
    SKU:
    29-07060067
    Truck Class:
    Heavy Duty
    Length Options:
    36 Inch
    Material Options:
    Plastic/Poly
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $26.76
    Qty in Cart: 0
    Price:
    $26.76
    Subtotal:
  • Multi V Ribbed Serpentine Belt 41.80 Inch 5 Rib - 4050418

    Multi V Ribbed Serpentine Belt 41.80 Inch 5 Rib - 4050418

    AUTOMANN USA

    $26.76
    5 Rib, 41.80 Inch Multi V-Belt Replaces 4050418This quality aftermarket serpentine belt features a straight ribbed construction that closely matches the original factory installed belt. Its new...
    29-07060063
    SKU:
    29-07060063
    Truck Class:
    Heavy Duty
    Length Options:
    42 Inch
    Material Options:
    Plastic/Poly
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $26.76
    Qty in Cart: 0
    Price:
    $26.76
    Subtotal:
  • Pivot Connection Align Service Repair Kit For Neway

    Pivot Connection Align Service Repair Kit For Neway

    AFTERMARKET

    $129.99
    Pivot Connection Align Service Repair Kit Replaces 48100205, SRK148* High Quality Service Repair Kit* Consists Of  - (2) 1-1/8 Inch x 9-1/2 Inch Cap Screw  - (2) 1-1/8 Inch Lock Nut  - (2) Pivot...
    29-05100009
    SKU:
    29-05100009
    Material Options:
    Steel
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    Make:
    Trailer
    $129.99
    Qty in Cart: 0
    Price:
    $129.99
    Subtotal:
  • Poly V-Rod Rebush Kit For Neway

    Poly V-Rod Rebush Kit For Neway

    AFTERMARKET

    $366.99
    Poly V-Rod Rebush Kit* High Quality V-Rod Rebush Kit* Consists Of  - (2) Torque Rod Bushing Poly Premium - (1) Apex Bushing  - (2) Spacer Washer  - (2) 1 Inch U-Bolt Washer  - (1) 1 Inch Lock Nut  -...
    29-05100031
    SKU:
    29-05100031
    Truck Class:
    Heavy Duty
    Material Options:
    Plastic/Poly
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    Make:
    Trailer
    $366.99
    Qty in Cart: 0
    Price:
    $366.99
    Subtotal:
  • Pivot Connection Align Kit - SRK147 For Neway

    Pivot Connection Align Kit - SRK147 For Neway

    AFTERMARKET

    $258.99
    Pivot Connection Align Kit Replaces 48100204, SRK147* High Quality Pivot Connection Kit* Consists Of  - (2) Pivot Bushing  - (4) Alignment Collar  - (2) 1-1/8 Inch X 9-1/2 Inch Cap Screw  - (2) 1-1/8...
    29-05100008
    SKU:
    29-05100008
    Truck Class:
    Heavy Duty
    Material Options:
    Plastic/Poly
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    Make:
    Trailer
    $258.99
    Qty in Cart: 0
    Price:
    $258.99
    Subtotal:
  • Axle Connection Kit - E9296 For Holland/Neway

    Axle Connection Kit - E9296 For Holland/Neway

    AFTERMARKET

    $906.99
    Axle Connection Kit Replaces 48100246, SRK189* High Quality Axle Connection Kit* Consists Of  - (2) Axle Connection Bushing Front  - (2) Axle Connection Bushing Rear  - (8) 7/8 Inch HD Lock Washers...
    29-05100032
    SKU:
    29-05100032
    Material Options:
    Steel
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    Make:
    Trailer
    $906.99
    Qty in Cart: 0
    Price:
    $906.99
    Subtotal:
  • Insulator Service Repair Kit - SRK1401 For Watson & Chalin

    Insulator Service Repair Kit - SRK1401 For Watson & Chalin

    AFTERMARKET

    $183.99
    Insulator Service Repair Kit Replaces SRK1401* High Quality Service Repair Kit* Consists Of  - (2) 7/8 Inch-14 X 7.5 Inch Insulator Bolt - (2) Spring Bolt - (8) 7/8 Inch Washer - (4) 7/8 Inch Lock...
    29-05100007
    SKU:
    29-05100007
    Material Options:
    Steel
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    Make:
    Trailer
    $183.99
    Qty in Cart: 0
    Price:
    $183.99
    Subtotal:
  • Poly-V Ribbed Serpentine Belt - 56.50 Inch Replaces 4050565

    Poly-V Ribbed Serpentine Belt - 56.50 Inch Replaces 4050565

    AFTERMARKET

    $46.69
    56.50 Inch Poly-V Serpentine Belt Replaces 505565DAY, E0SE8620DA, 4050565* High Quality V Serpentine Belt* 56.50 Inch Effective Length* 56.90 Inch Outside Length* Number Of Ribs- 5* Made In USA* Sold...
    29-07060075
    SKU:
    29-07060075
    Material Options:
    Rubber
    Length Options:
    56 1/2 Inch
    Truck Class:
    Light Duty
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $46.69
    Qty in Cart: 0
    Price:
    $46.69
    Subtotal:
  • Rubber Battery Box Bushing, K4023KW For Kenworth

    Rubber Battery Box Bushing, K4023KW For Kenworth

    AUTOMANN USA

    $6.35
    Battery Box Bushing Replaces 4023, 4023KW, And K4023KW* High Quality Battery Box Bushing* 1.52 Inch O.D.* 0.375 Inch I.D.* 0.715 Inch Height* Sold Individually * Warranty On Battery Box Bushings...
    09-05010000
    SKU:
    09-05010000
    Truck Class:
    Universal
    Material Options:
    Rubber
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $6.35
    Qty in Cart: 0
    Price:
    $6.35
    Subtotal:
  • 69 Inch Hy-T Torque Belt W/ Raw Edge

    69 Inch Hy-T Torque Belt W/ Raw Edge

    AFTERMARKET

    $180.99
    69 Inch Hy-T Torque Belt, Replaces 4BX66* High Quality Torque Belt* Polybutadiene* Outside Length 69 Inch* Thickness 13/32 Inch* Top Width 2 41/64 Inch* Edge Construction Raw Edge* Reinforcing Cord...
    29-07060079
    SKU:
    29-07060079
    Length Options:
    69 Inch
    Material Options:
    Plastic/Poly
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Product Type:
    Engine Parts
    $180.99
    Qty in Cart: 0
    Price:
    $180.99
    Subtotal:
  • Poly- V Non-Ribbed Serpentine Belt Replaces 4080775X

    Poly- V Non-Ribbed Serpentine Belt Replaces 4080775X

    AFTERMARKET

    $73.99
    Poly- V Serpentine Belt Replaces 4080775X, K080776Hd* High Quality Serpentine Belt* Black* Sold Individually* Warranty On Serpentine Belts Against Defects In Workmanship & Material From Date Of...
    29-07060086
    SKU:
    29-07060086
    Material Options:
    Plastic/Poly
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Product Type:
    Engine Parts
    $73.99
    Qty in Cart: 0
    Price:
    $73.99
    Subtotal:
  • Turbocharger For Cummins NTC315, 240

    Turbocharger For Cummins NTC315, 240

    AREA DIESEL SERVICE

    $1,310.99
    TurboCharger Replaces 40333326H 3029514 3522865 196441* High Quality Turbocharger* No Core Needed* Made In USA* Sold Individually* Warranty On Turbochargers Against Defects In Workmanship & Material...
    29-0704126
    SKU:
    29-0704126
    Location:
    Made In USA
    Material Options:
    Cast Iron
    Style Options:
    Cummins
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Product Type:
    Engine Parts
    $1,310.99
    Qty in Cart: 0
    Price:
    $1,310.99
    Subtotal:
  • S480 Non-Wastegated Turbocharger For Caterpillar C15 C16 3406E

    S480 Non-Wastegated Turbocharger For Caterpillar C15 C16 3406E

    AREA DIESEL SERVICE

    $3,026.99
    S480 Big CAT BorgWarner Non-Wastegated TurbochargerThe S480 Big Cat non-wastegated turbo is designed for applications with 750-850 horsepower. It features a 1.58 A/R housing, a forged milled...
    29-0704110
    SKU:
    29-0704110
    Material Options:
    Cast Iron
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Product Type:
    Engine Parts
    $3,026.99
    Qty in Cart: 0
    Price:
    $3,026.99
    Subtotal:
  • Turbo Housing S400SX4 For CAT 3406E

    Turbo Housing S400SX4 For CAT 3406E

    AREA DIESEL SERVICE

    $469.99
    T6 1.58 A/R Twin Scroll Turbine Housing* High Quality Turbo Housing* Cast Iron* 1.58 A/R Turbine Housing* Twin Scroll 5.75 Inch V-Band Outlet* Sold Individually* Warranty On Turbo Housings Against...
    09-0704047
    SKU:
    09-0704047
    Truck Class:
    Universal
    Material Options:
    Cast Iron
    Make:
    Universal Items
    Product Type:
    Engine Parts
    $469.99
    Qty in Cart: 0
    Price:
    $469.99
    Subtotal:
  • On Sale
    Limited Quantity Available
    S410SX Turbo 80MM Super Core For Caterpillar Engines

    S410SX Turbo 80MM Super Core For Caterpillar Engines

    AREA DIESEL SERVICE

    Now: $1,379.05
    Was: $1,948.99
    Super Core Turbo AssemblyThis turbo is designed for single-turbo Caterpillar engines, including C15 Acert, C15, 3406, MBN, 6NZ, 5EK, SDP, MXS, BXS, and NSX models. Please note, a turbine housing is...
    09-0704046
    SKU:
    09-0704046
    Material Options:
    Cast Iron
    Truck Class:
    Universal
    Make:
    Universal Items
    Product Type:
    Engine Parts
    Ready To Ship:
    Yes
    Now: $1,379.05
    Was: $1,948.99
    Qty in Cart: 0
    Price:
    Now: $1,379.05
    Was: $1,948.99
    Subtotal:
  • On Sale
    Limited Quantity Available
    Fixed A/C Blue Orifice Tube For Ford, Sterling

    Fixed A/C Blue Orifice Tube For Ford, Sterling

    BESTFIT TRUCK PARTS

    Now: $1.24
    Was: $1.77
    Air Conditioner Orifice Tube for Automotive ReplacementOur BESTfit valves provide the same high-quality, reliable, and durable performance as factory parts. They effectively restore A/C performance...
    09-070013
    SKU:
    09-070013
    Material Options:
    Plastic/Poly
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Product Type:
    Engine Parts
    Ready To Ship:
    Yes
    Now: $1.24
    Was: $1.77
    Qty in Cart: 0
    Price:
    Now: $1.24
    Was: $1.77
    Subtotal:
  • SS Peanut Cover Plate W/ Gasket Replaces 146-2601 For CAT 3406E

    SS Peanut Cover Plate W/ Gasket Replaces 146-2601 For CAT 3406E

    BESTFIT TRUCK PARTS

    $273.99
    Mirror Finish Stainless Steel Peanut Cover Plate And GasketDesigned to fit seamlessly onto the Cat 3406E and C15 ACERT engines, this cover plate is easy to install. It is constructed from high-grade...
    29-0704127
    SKU:
    29-0704127
    Material Options:
    Stainless Steel
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Product Type:
    Engine Parts
    Finish Options:
    Mirror
    $273.99
    Qty in Cart: 0
    Price:
    $273.99
    Subtotal:
  • 5.5 ID x 6 Inch Rubber Straight Hump Coupler For Intake Piping

    5.5 ID x 6 Inch Rubber Straight Hump Coupler For Intake Piping

    AFTERMARKET

    $42.53
    5 1/2 Inch ID Black Rubber Hump Style Straight Coupler WithCreate a smooth transition between two sections of intake piping with this rubber straight hump hose coupler. Designed for optimal airflow...
    29-070100003
    SKU:
    29-070100003
    Truck Class:
    Heavy Duty
    Material Options:
    Rubber
    Diameter Options:
    5 1/2 Inch
    Make:
    Universal Items
    Product Type:
    Engine Parts
    $42.53
    Qty in Cart: 0
    Price:
    $42.53
    Subtotal:
  • Throttle Cable, Length Option

    Throttle Cable, Length Option

    BUYERS PRODUCTS

    $43.14 - $53.99
    The Throttle Cable Length Option provides adjustable heavy?duty control cables in different lengths - typically 6?feet or 10?feet - for throttle, PTO, dump body and other control linkages on a wide...
    PPR_201389
    SKU:
    PPR_201389
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Product Type:
    Engine Parts
    $43.14 - $53.99
    Qty in Cart: 0
    Price:
    $43.14 - $53.99
    Subtotal:
  • BESTfit Steel Front Sump Oil Pan For Cummins X15 Engines - Replaces 5647538

    BESTfit Steel Front Sump Oil Pan For Cummins X15 Engines - Replaces 5647538

    BESTFIT TRUCK PARTS

    $644.99
    BESTfit Oil Pan W/ Front Sump - Replaces 4386821* High Quality Steel Oil Pan* Front Sump* Fits Cummins X15 2016-Current* Sold Individually* Warranty On Oil Pans Against Defects In Workmanship &...
    29-07200020
    SKU:
    29-07200020
    Make:
    Universal Items
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Product Type:
    Engine Parts
    Style Options:
    Cummins
    $644.99
    Qty in Cart: 0
    Price:
    $644.99
    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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