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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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  • 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:
  • Isspro Electric Oil Pressure Sensor - PD Style For 0-150 PSI/0-10 Bar

    Isspro Electric Oil Pressure Sensor - PD Style For 0-150 PSI/0-10 Bar

    ISSPRO

    $67.99
    PD Style Oil Pressure Sensor* High Quality Oil Pressure Sensor* Electric* 0-150 PSI * 1 Stud Terminal * Pd Style* Made In USA* Sold Individually* Warranty On Oil Pressure Sensors Against Defects In...
    09-07100002
    SKU:
    09-07100002
    Material Options:
    Brass
    Truck Class:
    Universal
    Make:
    Universal Items
    Product Type:
    Engine Parts
    $67.99
    Qty in Cart: 0
    Price:
    $67.99
    Subtotal:
  • Cogged V - Serpentine Belt 30 Inch

    Cogged V - Serpentine Belt 30 Inch

    AFTERMARKET

    $8.73
    30 Inch Cogged V - Serpentine Belt* High Quality V Serpentine Belt* Effective Length- 30.00 Inch* No Ribs* Sold Individually* Warranty On V Serpentine Belts Against Defects In Workmanship & Material...
    29-07060102
    SKU:
    29-07060102
    Material Options:
    Plastic/Poly
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Product Type:
    Engine Parts
    $8.73
    Qty in Cart: 0
    Price:
    $8.73
    Subtotal:
  • Fleetguard WF2127 Spin On Water Filter For Cummins ISX QSX Models

    Fleetguard WF2127 Spin On Water Filter For Cummins ISX QSX Models

    OPP - ORIGINAL PARTS PROGRAM

    $55.99
    Coolant Filter For Cummins ISX Engines* High Quality Water Filter* Spin On* Sold Individually* Warranty On Water Filters Against Defects In Workmanship & Material From Date Of Purchase*** This Is An...
    WF2127FLG
    SKU:
    WF2127FLG
    Truck Class:
    Universal
    Make:
    Universal Items
    Product Type:
    Engine Parts
    $55.99
    Qty in Cart: 0
    Price:
    $55.99
    Subtotal:
  • On Sale
    Limited Quantity Available
    RigMaster APU Radiator Cap 13 PSI

    RigMaster APU Radiator Cap 13 PSI

    RIGMASTER

    Now: $8.16
    Was: $22.43
    13 PSI APU Radiator Cap* High Quality Radiator Cap* 13 PSI* Sold Individually* Warranty On Radiator Caps Against Defects In Workmanship & Material From Date Of Purchase*** High Quality Aftermarket...
    RP5029
    SKU:
    RP5029
    Location:
    Made In USA
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Product Type:
    Engine Parts
    Ready To Ship:
    Yes
    Now: $8.16
    Was: $22.43
    Qty in Cart: 0
    Price:
    Now: $8.16
    Was: $22.43
    Subtotal:
  • RigMaster Linz Generator Conversion Kit For Caterpillar, Perkins Engine

    RigMaster Linz Generator Conversion Kit For Caterpillar, Perkins Engine

    RIGMASTER

    $1,373.99
    Linz Generator Conversion Kit* High Quality Linz Generator Conversion Kit* Kit Includes:  - Linz Generator Kit   - Rear Engine Bracket   - Generator Pulley Bushing   - Serpentine Belt   - Mounting...
    RP7029KU
    SKU:
    RP7029KU
    Material Options:
    Steel
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Product Type:
    Engine Parts
    $1,373.99
    Qty in Cart: 0
    Price:
    $1,373.99
    Subtotal:
  • RigMaster APU 170 AMP Alternator With Serpentine Pulley For Kohler LG200 Moto

    RigMaster APU 170 AMP Alternator With Serpentine Pulley For Kohler LG200 Moto

    RIGMASTER

    $469.99
    RigMaster 170 AMP Alternator With Serpentine Pulley* High Quality Smart Alternator* 170 Amp* With Serpentine Belt Pulley* Sold Individually* Warranty On Smart Alternators Against Defects In...
    LG7004
    SKU:
    LG7004
    Location:
    Made In USA
    Material Options:
    Steel
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Product Type:
    Engine Parts
    $469.99
    Qty in Cart: 0
    Price:
    $469.99
    Subtotal:
  • RigMaster APU Linz Generator Replacement Kit For Apus With Kohler Engine

    RigMaster APU Linz Generator Replacement Kit For Apus With Kohler Engine

    RIGMASTER

    $1,426.99
    Linz Generator Replacement Kit For Apus Kohler Engine* High Quality Linz Generator Kit* Sold Individually* Warranty On Generator Conversion Kits Against Defects In Workmanship & Material From Date Of...
    KT7029KU
    SKU:
    KT7029KU
    Material Options:
    Steel
    Truck Class:
    Heavy Duty
    Location:
    Made In USA
    Make:
    Universal Items
    Product Type:
    Engine Parts
    $1,426.99
    Qty in Cart: 0
    Price:
    $1,426.99
    Subtotal:
  • RigMaster APU Fuel Lift / Feeding Pump For Kohler Engine

    RigMaster APU Fuel Lift / Feeding Pump For Kohler Engine

    RIGMASTER

    $192.99
    Kohler Diesel OEM Part ED0065851510-S Fuel Feeding Pump* High Quality Lift Pump* Sold Individually* Warranty On Lift Pumps Against Defects In Workmanship & Material From Date Of Purchase*** High...
    ED0065851510S
    SKU:
    ED0065851510S
    Truck Class:
    Heavy Duty
    Location:
    Made In USA
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Engine Parts
    Ready To Ship:
    Yes
    $192.99
    Qty in Cart: 0
    Price:
    $192.99
    Subtotal:
  • RigMaster APU Sub-Frame Kit For Caterpillar, Perkins LG200 Motor

    RigMaster APU Sub-Frame Kit For Caterpillar, Perkins LG200 Motor

    RIGMASTER

    $532.99
    RigMaster Sub-Frame Kit For T46 & LG200 Models For Mounting On The Catwalk* High Quality Sub-Frame Kit* Sold Individually* Warranty On Sub-Frame Kits Against Defects In Workmanship & Material From...
    LG10050K
    SKU:
    LG10050K
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Product Type:
    Engine Parts
    $532.99
    Qty in Cart: 0
    Price:
    $532.99
    Subtotal:
  • RigMaster APU Alternator / Fan V-Belt For Caterpillar, Perkins LG200

    RigMaster APU Alternator / Fan V-Belt For Caterpillar, Perkins LG200

    RIGMASTER

    $9.35
    RigMaster Alternator / Fan V-Belt For Caterpillar And Perkins Engine LG200* High Quality Alternator/ Fan Belt* Sold Individually* Warranty On Alternator/ Fan Belts Against Defects In Workmanship &...
    LG8005
    SKU:
    LG8005
    Truck Class:
    Heavy Duty
    Material Options:
    Rubber
    Location:
    Made In USA
    Make:
    Universal Items
    Product Type:
    Engine Parts
    $9.35
    Qty in Cart: 0
    Price:
    $9.35
    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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