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International Truck Engine Parts

For a top-notch semi truck that runs like a dream, it's important to have excellent International engine parts installed that are designed for durability, efficiency, reliability, and power. At 4 State Trucks, we have a huge selection of aftermarket and custom engine parts and accessories that are all built to last. We've got what you need to ramp up the power of your International so it works as hard as you do.
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  • FREE SHIPPING OVER $249
    Howes D2 Diesel Treatment - 1/2 Gallon

    Howes D2 Diesel Treatment - 1/2 Gallon

    HOWES

    $19.34
    1/2 Gallon D2 Diesel Treatment By HowesHowes Diesel Treatment and Anti-Gel is a reliable fuel additive designed to improve diesel engine performance and protect against cold weather issues. Its...
    103060
    SKU:
    103060
    Truck Class:
    Universal
    Make:
    Universal Items
    Product Type:
    Engine Parts
    Ready To Ship:
    Yes
    $19.34
    Qty in Cart: 0
    Price:
    $19.34
    Subtotal:
  • FREE SHIPPING OVER $249
    Lucas Hub Oil - 32 Oz Bottle

    Lucas Hub Oil - 32 Oz Bottle

    LUCAS OIL PRODUCTS

    $11.43
    32 Oz Lucas Hub Oil BottleLucas Hub Oil Was Formulated To Stop Leaks In Steering Axles And Trailer Hubs On Heavy Duty Trucks. It Also Allows Hubs To Run On A Marginal Amount Of Oil In Case Of A Blown...
    10088LU
    SKU:
    10088LU
    Truck Class:
    Universal
    Make:
    Universal Items
    Product Type:
    Engine Parts
    Ready To Ship:
    Yes
    $11.43
    Qty in Cart: 0
    Price:
    $11.43
    Subtotal:
  • FREE SHIPPING OVER $249
    Lucas 5Th Wheel & Slider Lube - 16 Oz Bottle

    Lucas 5Th Wheel & Slider Lube - 16 Oz Bottle

    LUCAS OIL PRODUCTS

    $15.60
    16 Oz Lucas 5th Wheel And Slider Lube BottleLucas 5th Wheel and Slider Lube is a clean and inexpensive alternative to grease for 5th wheels and sliders. It lasts twice as long as grease and is...
    10030LU
    SKU:
    10030LU
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Product Type:
    Engine Parts
    Ready To Ship:
    Yes
    $15.60
    Qty in Cart: 0
    Price:
    $15.60
    Subtotal:
  • FREE SHIPPING OVER $249
    Lucas Heavy Duty Oil Stabilizer - 1 Gallon

    Lucas Heavy Duty Oil Stabilizer - 1 Gallon

    LUCAS OIL PRODUCTS

    $41.49
    1 Gallon Lucas Heavy Duty Oil StabilizerExtend the life of your oil with the help of Lucas Heavy Duty Oil Stabilizer. It increases the life of oil while eliminating dry starts, heat, friction, and...
    10002LU
    SKU:
    10002LU
    Truck Class:
    Universal
    Capacity:
    1 Gallon
    Make:
    Universal Items
    Product Type:
    Engine Parts
    $41.49
    Qty in Cart: 0
    Price:
    $41.49
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  • Filter Wrench Ratcheting Chain

    Filter Wrench Ratcheting Chain

    AUTOMANN USA

    $51.99
    Filter Wrench Racheting Chain* High Quality Ratcheting Chain* Fits 3 Inch Thru 4.5 Inch Diameters* Sold Individually* Warranty On Ratcheting Chain Against Defects In Workmanship & Material From Date...
    09-2100088
    SKU:
    09-2100088
    Truck Class:
    Universal
    Make:
    Universal Items
    Product Type:
    Engine Parts
    $51.99
    Qty in Cart: 0
    Price:
    $51.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Thermocouple For Digital Pyrometer, By Teltek

    Thermocouple For Digital Pyrometer, By Teltek

    TELTEK

    $110.99
    Thermocouple Teltek Digital PyrometerThe Teltek digital pyrometer can be paired with a reliable and high-quality thermocouple, available for individual purchase. Designed to meet your temperature...
    09-1502183
    SKU:
    09-1502183
    Location:
    Made In USA
    Truck Class:
    Universal
    Make:
    Universal Items
    Product Type:
    Interior
    Ready To Ship:
    Yes
    $110.99
    Qty in Cart: 0
    Price:
    $110.99
    Subtotal:
  • Isspro Oil Temperature Sending Unit With 1 Stud Terminal

    Isspro Oil Temperature Sending Unit With 1 Stud Terminal

    ISSPRO

    $57.99
    Oil Temperature Sending Unit With 1/8 Inch Sensor & 3 Adapter BushingsThe Isspro Oil Temperature Sending Unit features a 1 stud terminal for convenient installation and reliable performance. This...
    09-1502008
    SKU:
    09-1502008
    Truck Class:
    Universal
    Make:
    Universal Items
    Product Type:
    Interior
    $57.99
    Qty in Cart: 0
    Price:
    $57.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Klotz Foam Filter Oil Blocks Out Moisture, Dirt, Water - 15.25 Oz. Aerosol

    Klotz Foam Filter Oil Blocks Out Moisture, Dirt, Water - 15.25 Oz. Aerosol

    FLEET FILTERS

    $24.13
    Klotz KL-606 Foam Air Filter Oil* High Quality Foam Filter* Blocks Out Moisture, Dirt, And Water* For Waterproof Protection* Improves Air Flow * Filters Out Micron-Sized Particles * 15.25 Oz Aerosol...
    09-090500001
    SKU:
    09-090500001
    Truck Class:
    Universal
    Make:
    Universal Items
    Product Type:
    Engine Parts
    Ready To Ship:
    Yes
    $24.13
    Qty in Cart: 0
    Price:
    $24.13
    Subtotal:
  • Aluminum Oil Pan 9 Gallon - Replaces 133-6084 For CAT 3406B, 3406E Engines By BESTfit

    Aluminum Oil Pan 9 Gallon - Replaces 133-6084 For CAT 3406B, 3406E Engines By BESTfit

    BESTFIT TRUCK PARTS

    $1,032.99
    BESTfit Caterpillar Oil Pan Can Replaces 150-4638This high quality Replacement Caterpillar 3406E 9 gallon Oil Pan can replace with the caterpillar number 150-4638.* High Quality Oil Pan * Made Of...
    09-077C3236
    SKU:
    09-077C3236
    Truck Class:
    Heavy Duty
    Material Options:
    Aluminum
    Make:
    Universal Items
    Capacity:
    9 Gallons
    Product Type:
    Engine Parts
    Ready To Ship:
    Yes
    $1,032.99
    Qty in Cart: 0
    Price:
    $1,032.99
    Subtotal:
  • BESTfit Oil Pan Cast Aluminum For Caterpillar 3406 Pre-1985

    BESTfit Oil Pan Cast Aluminum For Caterpillar 3406 Pre-1985

    BESTFIT TRUCK PARTS

    $830.99
    BESTfit Oil Pan For CAT 3406A & 3406BThis high quality aluminum 7 gallon oil pan works with Caterpillar 3406 engines. It can fit either the front or the rear sump in your aftermarket CAT3406 A&B,...
    09-074N919
    SKU:
    09-074N919
    Truck Class:
    Universal
    Material Options:
    Aluminum
    Make:
    Universal Items
    Product Type:
    Engine Parts
    Capacity:
    7 Gallons
    $830.99
    Qty in Cart: 0
    Price:
    $830.99
    Subtotal:
  • FREE SHIPPING OVER $249
    BESTfit Oil Pan Gasket For Caterpillar 3406 Engines

    BESTfit Oil Pan Gasket For Caterpillar 3406 Engines

    BESTFIT TRUCK PARTS

    $30.89
    BESTfit Oil Pan Gasket* High Quality Oil Pan Gasket* For Caterpillar Engines 3406A, 3606B, 3406C, 3406E* Fits Pan # 09-074N919, 09-077C3236* Will Not Fit C15 Engine Oil Pans* Sold Individually*...
    09-074N11516
    SKU:
    09-074N11516
    Truck Class:
    Universal
    Make:
    Universal Items
    Product Type:
    Engine Parts
    Ready To Ship:
    Yes
    $30.89
    Qty in Cart: 0
    Price:
    $30.89
    Subtotal:
  • BESTfit Cummins NT855 Flywheel Housing

    BESTfit Cummins NT855 Flywheel Housing

    BESTFIT TRUCK PARTS

    $1,013.99
    BESTfit Flywheel HousingThis high quality flywheel housing for the Cummins NT855 engine is drilled for both straight up and tilted engine and for the electronic tachometer. The flywheel has a small...
    09-073036011
    SKU:
    09-073036011
    Truck Class:
    Universal
    Material Options:
    Aluminum
    Make:
    Universal Items
    Product Type:
    Engine Parts
    Style Options:
    Cummins
    $1,013.99
    Qty in Cart: 0
    Price:
    $1,013.99
    Subtotal:
  • FREE SHIPPING OVER $249
    TPHD 2.25 Inch Oil Filler Cap W/ T Handle For Cummins

    TPHD 2.25 Inch Oil Filler Cap W/ T Handle For Cummins

    TPHD

    $34.66
    Oil Filler Cap By TPHD* High Quality Expandable Metal - Rubber Cap* Fits 2.25 Inch ID Oil Filler Hole* For Cummins Engines* Sold Individually* Warranty On Oil Filler Cap Against Defects In...
    09-072011
    SKU:
    09-072011
    Truck Class:
    Universal
    Make:
    Universal Items
    Product Type:
    Engine Parts
    Ready To Ship:
    Yes
    $34.66
    Qty in Cart: 0
    Price:
    $34.66
    Subtotal:
  • FREE SHIPPING OVER $249
    TPHD 1 5/8 Inch Oil Filler Cap W/ T Handle

    TPHD 1 5/8 Inch Oil Filler Cap W/ T Handle

    TPHD

    $35.36
    Oil Filler Cap* High Quality Oil Filler Cap* 1 5/8 Inch* Sold Individually* Warranty On Oil Filler Cap Against Defects In Workmanship & Material From Date Of Purchase***High Quality Aftermarket...
    09-072010
    SKU:
    09-072010
    Truck Class:
    Universal
    Make:
    Universal Items
    Product Type:
    Engine Parts
    $35.36
    Qty in Cart: 0
    Price:
    $35.36
    Subtotal:
  • FREE SHIPPING OVER $249
    TPHD 1.375 Inch Oil Filler Cap W/ T Handle

    TPHD 1.375 Inch Oil Filler Cap W/ T Handle

    TPHD

    $22.67
    1.375 Inch Oil Filler Cap By TPHD* High Quality Oil Filler Cap* 1.375 Inch* Sold Individually* Warranty On Oil Filler Cap Against Defects In Workmanship & Material From Date Of Purchase*** High...
    09-072009
    SKU:
    09-072009
    Truck Class:
    Universal
    Make:
    Universal Items
    Product Type:
    Engine Parts
    Ready To Ship:
    Yes
    $22.67
    Qty in Cart: 0
    Price:
    $22.67
    Subtotal:
  • FREE SHIPPING OVER $249
    TPHD 1.5 Inch Oil Filler Cap W/ T Handle

    TPHD 1.5 Inch Oil Filler Cap W/ T Handle

    TURNPIKE TRUCK TRIM

    $10.94
    Oil Filler Cap By TPHDMaintain peak engine performance with the TPHD 1.5 Inch Oil Filler Cap with T Handle, a high-quality, durable solution for your truck. Its secure design prevents oil leaks and...
    09-072008
    SKU:
    09-072008
    Truck Class:
    Universal
    Make:
    Universal Items
    Product Type:
    Engine Parts
    Ready To Ship:
    Yes
    $10.94
    Qty in Cart: 0
    Price:
    $10.94
    Subtotal:
  • FREE SHIPPING OVER $249
    TPHD 1 Inch Oil Filler Cap W/ T Handle

    TPHD 1 Inch Oil Filler Cap W/ T Handle

    TPHD

    $11.12
    Oil Filler Cap By TPHD* High Quality Oil Filler Cap* 1 Inch* Sold Individually* Warranty On Oil Filler Cap Against Defects In Workmanship & Material From Date Of Purchase*** High Quality Aftermarket...
    09-072007
    SKU:
    09-072007
    Truck Class:
    Universal
    Make:
    Universal Items
    Product Type:
    Engine Parts
    Ready To Ship:
    Yes
    $11.12
    Qty in Cart: 0
    Price:
    $11.12
    Subtotal:
  • FREE SHIPPING OVER $249
    TPHD 2 Inch Oil Filler Cap

    TPHD 2 Inch Oil Filler Cap

    TPHD

    $13.84
    Oil Filler Cap With T Handle By TPHDThe oil filler cap allows easy access to the engine when filling lubricating oil. The cap also seals the oil supply to the engine. This seal prevents possible...
    09-072006
    SKU:
    09-072006
    Truck Class:
    Universal
    Make:
    Universal Items
    Product Type:
    Engine Parts
    Ready To Ship:
    Yes
    $13.84
    Qty in Cart: 0
    Price:
    $13.84
    Subtotal:
  • FREE SHIPPING OVER $249
    TPHD 1.25 Inch Oil Filler Cap For Caterpillar C15 Acert Engines

    TPHD 1.25 Inch Oil Filler Cap For Caterpillar C15 Acert Engines

    TPHD

    $17.20
    Oil Filler Cap By TPHD* High Quality Oil Filler Cap* 1.25 Inch* Sold Individually* Warranty On Oil Filler Cap Against Defects In Workmanship & Material From Date Of Purchase*** High Quality...
    09-072005
    SKU:
    09-072005
    Truck Class:
    Universal
    Make:
    Universal Items
    Product Type:
    Engine Parts
    Ready To Ship:
    Yes
    $17.20
    Qty in Cart: 0
    Price:
    $17.20
    Subtotal:
  • FREE SHIPPING OVER $249
    TPHD 1.75 Inch Oil Filler Cap

    TPHD 1.75 Inch Oil Filler Cap

    TPHD

    $18.81
    1-3/4 Inch Engine Oil Filler Cap By TPHDThe Moeller rubber expansion type engine oil filler cap is designed to fit fill necks with an inside diameter of 1-3/4 inches.* High Quality Oil Filler Cap* 1...
    09-072004
    SKU:
    09-072004
    Truck Class:
    Universal
    Make:
    Universal Items
    Product Type:
    Engine Parts
    $18.81
    Qty in Cart: 0
    Price:
    $18.81
    Subtotal:
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Adding your products to cart

International Semi Truck Engine Parts

When you're running an International, keeping that engine in top shape is non-negotiable. Whether you're a fleet manager or an owner-operator, you need parts that hold up mile after mile. Our aftermarket International semi truck engine parts are built for serious work—offering long-lasting performance at a price that won’t wreck your maintenance budget.

Heavy Duty Truck Engine Parts You Can Trust

Our International engine parts lineup is packed with the essentials your rig needs to stay reliable on the road. You’ll find everything from fuel injectors, oil pans, and turbochargers to cooling system components like coolant tubes and charge air cooler hoses. We also stock must-have maintenance items like water pumps and motor mounts. So, whether you're fixing a breakdown or upgrading to improve power and fuel efficiency, these parts help keep your International semi running strong and hauling hard.

Outstanding Features and Top Performance

Here’s what makes this collection a smart pick for your commercial big rig:
  • Fits a wide range of International models—like the 9200, 9400, 4700, and S1900
  • Built tough for heavy-duty, commercial use
  • Easy to install and maintain, saving you time in the shop
  • Priced right, with fast shipping to reduce your downtime
  • We know how valuable every mile is. That’s why we only offer International engine parts that deliver both performance and peace of mind.

    Shop Top Commercial Engine Parts Online at 4 State Trucks

    We’re your one-stop shop for International semi truck parts and accessories. Whether you’re replacing worn components or customizing your engine setup for better performance, we’ve got what you need to get it done. Explore more upgrades while you're here—from International truck lighting to custom steering wheels—and take your big rig build to the next level.

    Frequently Asked Questions About International Truck Engine Parts

    What International engine models are your parts compatible with?

    Our International engine parts are designed to fit a wide range of models including the DT466, DT530, MaxxForce 7, MaxxForce DT, MaxxForce 9, MaxxForce 10, MaxxForce 13, and the newer A26 engines. Each product listing includes specific engine model compatibility in the description. We recommend checking your engine serial number against our fitment guide or contacting our support team at 1-888-875-7787 if you need help confirming compatibility for your specific truck year and model.

    Are these OEM International parts or aftermarket replacements?

    We carry both genuine OEM International parts and high-quality aftermarket alternatives. OEM parts are clearly labeled in our product titles and descriptions. Our aftermarket options meet or exceed OEM specifications and often come from trusted manufacturers like Dorman, PAI Industries, and Interstate McBee. Many customers choose aftermarket parts for significant cost savings without sacrificing quality or fitment.

    What are the most common engine parts that need replacement on International trucks?

    Based on customer orders and feedback, the most frequently replaced International engine parts include EGR valves and coolers (especially on 2007-2012 MaxxForce engines), fuel injectors, turbochargers, oil coolers, and high-pressure oil pumps for DT466 engines. We also see high demand for sensors like cam position sensors, IPR valves, and MAP sensors. These components typically show wear between 150,000-300,000 miles depending on maintenance and operating conditions.

    Do you provide installation instructions or technical support for engine parts?

    While we do not include printed installation instructions with most engine parts, our technical support team can provide guidance and answer installation questions. We recommend having a qualified diesel technician perform engine part installations, as many components require specific torque specifications and procedures. For DIY customers, we can direct you to service manual resources and provide torque specs when available. Call our tech line during business hours for assistance.

    What is your return policy on International engine parts?

    We offer a 30-day return policy on most International engine parts that are unused and in original packaging. Electronic components like sensors and modules must be unopened to qualify for return. Core exchange items like turbochargers and injectors require the old core to be returned within 30 days to receive your core credit. Custom-ordered or special-order engine parts are typically non-returnable. Please review the specific return policy on each product page or contact us before ordering if you have questions about a particular part.


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