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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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  • Qty in Cart
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  • AC Pressure Switch Transducer 3546241C1 For International

    AC Pressure Switch Transducer 3546241C1 For International

    AFTERMARKET

    $40.84
    International Transducer Pressure SwitchThis high-quality binary pressure switch transducer is engineered for dependable performance in heavy-duty air conditioning systems. Designed to provide both...
    07-07100011
    SKU:
    07-07100011
    Product Type:
    Engine Parts
    Make:
    International
    $40.84
    Qty in Cart: 0
    Price:
    $40.84
    Subtotal:
  • Harness Injector Dozer Kit For Cummins Dozer

    Harness Injector Dozer Kit For Cummins Dozer

    JML KUSTOMS

    $16.81
    Harness Injector Cummins Dozer KitThis heavy-duty injector harness kit is built with 16 AWG nylon/copper wiring and is designed for use with Cummins-powered dozers. It features a plug-and-play design...
    29-16030021
    SKU:
    29-16030021
    Product Type:
    Engine Parts
    Material Options:
    Copper
    Make:
    Universal Items
    $16.81
    Qty in Cart: 0
    Price:
    $16.81
    Subtotal:
  • Third Position Female Connector For Water In Fuel Application For Detroit DD13, DD15, DD16

    Third Position Female Connector For Water In Fuel Application For Detroit DD13, DD15, DD16

    JML KUSTOMS

    $16.81
    Detroit Engine Third Position Female ConnectorThis third-position female connector kit is designed for fuel-in-water sensors on engines such as DD13, DD15, and DD16. It uses 16 AWG nylon/copper...
    29-16030020
    SKU:
    29-16030020
    Material Options:
    Copper
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $16.81
    Qty in Cart: 0
    Price:
    $16.81
    Subtotal:
  • 4 Way Female Compact Nox Sensor Connector Pigtail 1.1 m Gray

    4 Way Female Compact Nox Sensor Connector Pigtail 1.1 m Gray

    JML KUSTOMS

    $23.55
    4 Way Female Compact Nox Sensor Connector PigtailThis connector pigtail is built with 16 AWG nylon/copper wiring and features a gray, 4-way female compact plug that's designed to fit NOX sensors used...
    09-160300013
    SKU:
    09-160300013
    Color:
    Gray
    Material Options:
    Copper
    Product Type:
    Engine Parts
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $23.55
    Qty in Cart: 0
    Price:
    $23.55
    Subtotal:
  • 4 Pin Square Hardness Wiring Pigtail For NOX Sensor

    4 Pin Square Hardness Wiring Pigtail For NOX Sensor

    JML KUSTOMS

    $21.86
    Square 4 Pin Hardness Wiring Pigtail Fits Nitrogen Oxide SensorThis high-quality wiring pigtail is built with 16 AWG nylon/copper construction and features a square 4 pin female connection designed...
    09-160300012
    SKU:
    09-160300012
    Material Options:
    Copper
    Shape Options:
    Square
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $21.86
    Qty in Cart: 0
    Price:
    $21.86
    Subtotal:
  • 2 Pin Female Connector Harness Crankshaft Kit

    2 Pin Female Connector Harness Crankshaft Kit

    JML KUSTOMS

    $16.81
    Harness Crankshaft KitThis high-quality harness crankshaft kit is built with 16 AWG nylon/copper wiring and features a 2 pin female connection for dependable electrical contact. It includes...
    09-160300010
    SKU:
    09-160300010
    Material Options:
    Copper
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $16.81
    Qty in Cart: 0
    Price:
    $16.81
    Subtotal:
  • Female Low Coolant Level Sensor Connector

    Female Low Coolant Level Sensor Connector

    JML KUSTOMS

    $23.55
    Low Coolant Kit / Harness Nox Sensor KIT - Female SensorThis kit includes a low-coolant level sensor and matching harness - a plug-and-play solution for monitoring coolant levels and restoring proper...
    09-160300009
    SKU:
    09-160300009
    Product Type:
    Engine Parts
    Material Options:
    Copper
    Make:
    Universal Items
    $23.55
    Qty in Cart: 0
    Price:
    $23.55
    Subtotal:
  • 2 Position 2 Pin Female Harness Weather Pack Connector

    2 Position 2 Pin Female Harness Weather Pack Connector

    JML KUSTOMS

    $16.81
    Harness Weather Pack 2 Position Female ConnectorThis high-quality harness weather pack connector is built with 16 AWG nylon/copper wiring and features a 2 pin female connection for a secure and...
    09-160300011
    SKU:
    09-160300011
    Product Type:
    Engine Parts
    Material Options:
    Copper
    Make:
    Universal Items
    $16.81
    Qty in Cart: 0
    Price:
    $16.81
    Subtotal:
  • Harness AC Compressor Connector Kit - Male & Female

    Harness AC Compressor Connector Kit - Male & Female

    JML KUSTOMS

    $21.86
    AC Compressor Connector KitThis AC Compressor Connector Kit includes male and female connectors, heat shrink butt connectors, and durable 16 AWG, 15cm nylon/copper wires. It's simple, reliable, and...
    09-160300008
    SKU:
    09-160300008
    Material Options:
    Copper
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $21.86
    Qty in Cart: 0
    Price:
    $21.86
    Subtotal:
  • Primrose Winter Klenz Diesel Additive With Ice Check & Xtreme Torque 5757

    Primrose Winter Klenz Diesel Additive With Ice Check & Xtreme Torque 5757

    AFTERMARKET

    $33.46
    Primrose Winter Klenz 5757 Premium Select Diesel Fuel AdditiveThis diesel fuel additive is a helpful way to protect your engine in winter. It's made to reduce the chances of fuel gelling or freezing...
    WK5757
    SKU:
    WK5757
    Product Type:
    Engine Parts
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $33.46
    Qty in Cart: 0
    Price:
    $33.46
    Subtotal:
  • Primrose Rescue RX 5055 Premium Diesel Fuel Additive - 1 Gallon

    Primrose Rescue RX 5055 Premium Diesel Fuel Additive - 1 Gallon

    AFTERMARKET

    $102.99
    Diesel Fuel De-Gel & De-Ice Additive - Rescue RX 5055Low sulfur diesel can lead to issues like clogged injectors, poor lubrication, and filter problems. Rescue RX 5055 prevents these issues while...
    RX5055
    SKU:
    RX5055
    Product Type:
    Exterior
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $102.99
    Qty in Cart: 0
    Price:
    $102.99
    Subtotal:
  • Primrose Power Klenz Premium Select Diesel Fuel Additive

    Primrose Power Klenz Premium Select Diesel Fuel Additive

    AFTERMARKET

    $95.99
    Power Service Diesel Kleen +Cetane BoostBoost diesel performance with Power Klenz 5007. It's great for cleaning injectors, dispersing asphaltenes, and preventing filter clogs. Lubricity improves,...
    PK5007
    SKU:
    PK5007
    Product Type:
    Engine Parts
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $95.99
    Qty in Cart: 0
    Price:
    $95.99
    Subtotal:
  • 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:
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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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