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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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  • BESTfit Cummins ISC, ISL Flywheel 3909908

    BESTfit Cummins ISC, ISL Flywheel 3909908

    BESTFIT TRUCK PARTS

    $520.99
    BESTfit Flywheel* High Quality Flywheel* 158 Teeth Count * Uses Ring Gear* Sold Individually* Warranty On Flywheels Against Defects In Workmanship & Material From Date Of Purchase*** High Quality...
    29-07040029
    SKU:
    29-07040029
    Make:
    Universal Items
    Truck Class:
    Heavy Duty
    Material Options:
    Aluminum
    Product Type:
    Engine Parts
    $520.99
    Qty in Cart: 0
    Price:
    $520.99
    Subtotal:
  • BESTfit Damper Replaces 3073587 For Cummins ISM, M1 Engines

    BESTfit Damper Replaces 3073587 For Cummins ISM, M1 Engines

    BESTFIT TRUCK PARTS

    $488.99
    BESTfit Damper* High Quality Damper* Sold Individually* Warranty On Dampers Against Defects In Workmanship & Material From Date Of Purchase*** High Quality Aftermarket Replacement Part (Not OEM)****...
    29-07040028
    SKU:
    29-07040028
    Truck Class:
    Universal
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Engine Parts
    $488.99
    Qty in Cart: 0
    Price:
    $488.99
    Subtotal:
  • BESTfit Exhaust Manifold Replaces 3931440 For Cummins C Series Engines

    BESTfit Exhaust Manifold Replaces 3931440 For Cummins C Series Engines

    BESTFIT TRUCK PARTS

    $245.99
    BESTfit Exhaust Manifold* High Quality Exhaust Manifold* Turbo Exhaust Position LMFO* Made Of Iron* Sold Individually* Warranty On Exhaust Manifolds Against Defects In Workmanship & Material From...
    29-07120050
    SKU:
    29-07120050
    Make:
    Universal Items
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Product Type:
    Engine Parts
    $245.99
    Qty in Cart: 0
    Price:
    $245.99
    Subtotal:
  • BESTfit Cummins ISC, ISL Flywheel Replaces 3282171

    BESTfit Cummins ISC, ISL Flywheel Replaces 3282171

    BESTFIT TRUCK PARTS

    $798.99
    BESTfit Flywheel* High Quality Flywheel* 138 Teeth Count* Uses A Ring Gear* Sold Individually* Warranty On Flywheels Against Defects In Workmanship & Material From Date Of Purchase*** High Quality...
    29-07040023
    SKU:
    29-07040023
    Make:
    Universal Items
    Truck Class:
    Heavy Duty
    Material Options:
    Billet Aluminum
    Product Type:
    Engine Parts
    $798.99
    Qty in Cart: 0
    Price:
    $798.99
    Subtotal:
  • BESTfit Cummins ISX12 Flywheel

    BESTfit Cummins ISX12 Flywheel

    BESTFIT TRUCK PARTS

    $537.99
    BESTfit SAE No 1 Flywheel W/ Ring Gear* High Quality Flywheel* Size SAE No.1* 15.5 Inch Clutch* Ring Gear (Included)* Sold Individually* Warranty On Flywheels Against Defects In Workmanship &...
    29-07040024
    SKU:
    29-07040024
    Make:
    Universal Items
    Truck Class:
    Heavy Duty
    Material Options:
    Billet Aluminum
    Product Type:
    Engine Parts
    Style Options:
    Cummins
    $537.99
    Qty in Cart: 0
    Price:
    $537.99
    Subtotal:
  • BESTfit Detroit Diesel DD15 Flywheel, 160 Tooth Count

    BESTfit Detroit Diesel DD15 Flywheel, 160 Tooth Count

    BESTFIT TRUCK PARTS

    $524.99
    BESTfit Flywheel W/ 12 Mounting Holes, 1 Dowel Pin Hole & 15 Inch Clutch Size* High Quality Flywheel* 12 Mounting Holes* 1 Dowel Pin Hole* 10 Inch Bore Opening* Ring Gear (Included)* 160 Teeth Count*...
    29-07040021
    SKU:
    29-07040021
    Make:
    Universal Items
    Truck Class:
    Heavy Duty
    Product Type:
    Engine Parts
    $524.99
    Qty in Cart: 0
    Price:
    $524.99
    Subtotal:
  • BESTfit Cummins 8.3L ISC-ISL Iron Flywheel Housing

    BESTfit Cummins 8.3L ISC-ISL Iron Flywheel Housing

    BESTFIT TRUCK PARTS

    $876.99
    BESTfit Cast Iron Flywheel Housing* High Quality Flywheel Housing* Cast Iron* Sold Individually* Warranty On Flywheel Housings Against Defects In Workmanship & Material From Date Of Purchase*** High...
    29-07040026
    SKU:
    29-07040026
    Make:
    Universal Items
    Truck Class:
    Heavy Duty
    Product Type:
    Engine Parts
    $876.99
    Qty in Cart: 0
    Price:
    $876.99
    Subtotal:
  • BESTfit Camshaft 691921 For Detroit Diesel Series 60 11.1L Engines

    BESTfit Camshaft 691921 For Detroit Diesel Series 60 11.1L Engines

    BESTFIT TRUCK PARTS

    $865.99
    BESTfit New Aftermarket Detroit CamshaftThis Camshaft fits in your Aftermarket Detroit Diesel Series 60 Heavy Duty Trucks.* High Quality Camshaft* Sold Individually* Warranty On Camshafts Against...
    29-07040009
    SKU:
    29-07040009
    Make:
    Universal Items
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Product Type:
    Engine Parts
    $865.99
    Qty in Cart: 0
    Price:
    $865.99
    Subtotal:
  • BESTfit D11 Flywheel, 153 Tooth Count For Mack MP7, Volvo

    BESTfit D11 Flywheel, 153 Tooth Count For Mack MP7, Volvo

    BESTFIT TRUCK PARTS

    $720.99
    BESTfit Flywheel W/ 12 Mounting Holes, 10 Inch Bore Opening & 15 Inch Clutch Size* High Quality Flywheel* 12 Mounting Holes* 1 Dowel Pin Hole* 10 Inch Bore Opening* Ring Gear (Included)* 153 Teeth...
    29-07040022
    SKU:
    29-07040022
    Make:
    Universal Items
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Product Type:
    Engine Parts
    $720.99
    Qty in Cart: 0
    Price:
    $720.99
    Subtotal:
  • BESTfit Cam Shaft Replaces 4025134 For Cummins ISB Engines

    BESTfit Cam Shaft Replaces 4025134 For Cummins ISB Engines

    BESTFIT TRUCK PARTS

    $198.99
    BESTfit Cam Shaft* High Quality Camshaft* Sold Individually* Warranty On Camshafts Against Defects In Workmanship & Material From Date Of Purchase*** High Quality Aftermarket Replacement Part (Not...
    29-07040007
    SKU:
    29-07040007
    Make:
    Universal Items
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Product Type:
    Engine Parts
    $198.99
    Qty in Cart: 0
    Price:
    $198.99
    Subtotal:
  • BESTfit Cummins C Series Cast Iron Flywheel Housing, SAE No 1 Size

    BESTfit Cummins C Series Cast Iron Flywheel Housing, SAE No 1 Size

    BESTFIT TRUCK PARTS

    $1,035.99
    BESTfit Cast Iron Flywheel Housing* High Quality Flywheel Housing* Cast Iron* Size: SAE No. 1* Starter  - 1 O Clock Position * Sold Individually* Warranty On Flywheel Housings Against Defects In...
    29-07040005
    SKU:
    29-07040005
    Make:
    Universal Items
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Product Type:
    Engine Parts
    $1,035.99
    Qty in Cart: 0
    Price:
    $1,035.99
    Subtotal:
  • BESTfit Camshaft 691920 For Detroit Diesel Series 60 12.7L & 14.0L Engines

    BESTfit Camshaft 691920 For Detroit Diesel Series 60 12.7L & 14.0L Engines

    BESTFIT TRUCK PARTS

    $865.99
    BESTfit Detroit Diesel 60 Series 12.7 Engine CamshaftThis Camshaft fits in your Aftermarket Detroit Diesel Series 60 12.7L/14.0L Heavy Duty Trucks.* High Quality Camshaft* Sold Individually* Warranty...
    29-07040008
    SKU:
    29-07040008
    Make:
    Universal Items
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Product Type:
    Engine Parts
    $865.99
    Qty in Cart: 0
    Price:
    $865.99
    Subtotal:
  • BESTfit Cam Shaft Replaces 3930378 For Cummins B Series Engines

    BESTfit Cam Shaft Replaces 3930378 For Cummins B Series Engines

    BESTFIT TRUCK PARTS

    $134.99
    BESTfit Cam Shaft* High Quality Camshaft* Sold Individually* Warranty On Camshafts Against Defects In Workmanship & Material From Date Of Purchase*** High Quality Aftermarket Replacement Part (Not...
    29-07040003
    SKU:
    29-07040003
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Product Type:
    Engine Parts
    $134.99
    Qty in Cart: 0
    Price:
    $134.99
    Subtotal:
  • BESTfit Camshaft 3690406 For Cummins ISX X15 Engines

    BESTfit Camshaft 3690406 For Cummins ISX X15 Engines

    BESTFIT TRUCK PARTS

    $1,499.99
    Replacement Cummins X15 CamshaftUpgrade your Cummins X15CM2350 engine with this high-quality camshaft. Designed for durability and performance, it ensures smooth valve operation. Shop now for...
    29-07040001
    SKU:
    29-07040001
    Make:
    Universal Items
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Product Type:
    Engine Parts
    $1,499.99
    Qty in Cart: 0
    Price:
    $1,499.99
    Subtotal:
  • BESTfit Cam Shaft Replaces 3685963 For Cummins ISX Engines

    BESTfit Cam Shaft Replaces 3685963 For Cummins ISX Engines

    BESTFIT TRUCK PARTS

    $1,216.99
    BESTfit Cam Shaft* High Quality Camshaft* Sold Individually* Warranty On Camshafts Against Defects In Workmanship & Material From Date Of Purchase*** High Quality Aftermarket Replacement Part (Not...
    29-07040002
    SKU:
    29-07040002
    Make:
    Universal Items
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Product Type:
    Engine Parts
    $1,216.99
    Qty in Cart: 0
    Price:
    $1,216.99
    Subtotal:
  • Steel Front Sump Oil Pan W/ 34 Mounting Holes For International W/ DT466 Engines

    Steel Front Sump Oil Pan W/ 34 Mounting Holes For International W/ DT466 Engines

    BESTFIT TRUCK PARTS

    $431.99
    International Steel Front Sump Oil PanThis steel Oil Pan with a front sump fits in your aftermarket Detroit DT466 1981-1993 Diesel Engine Trucks. It is has 34 mounting holes and has smooth welds,...
    07-0720003
    SKU:
    07-0720003
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Make:
    International
    Product Type:
    Engine Parts
    $431.99
    Qty in Cart: 0
    Price:
    $431.99
    Subtotal:
  • 10 Micron Fuel-Water Separator Filter

    10 Micron Fuel-Water Separator Filter

    OPP - ORIGINAL PARTS PROGRAM

    $30.24
    10 Micron Fuel-Water Separator Filter* High Quality Fuel Water Separator Filter* Filter* Sold Individually * Warranty On Fuel Water Separator Filter Against Defects In Workmanship & Material From...
    FS19764FLG
    SKU:
    FS19764FLG
    Truck Class:
    Heavy Duty
    Make:
    Western Star
    Product Type:
    Engine Parts
    Ready To Ship:
    Yes
    $30.24
    Qty in Cart: 0
    Price:
    $30.24
    Subtotal:
  • On Sale
    FREE SHIPPING OVER $249
    Limited Quantity Available
    3-Wire Alternator Connector W/ 1 12 AWG Lead & 2 18 AWG Leads For GM Alternators W/ Internal Voltage Regulator Replaces 12101895

    3-Wire Alternator Connector W/ 1 12 AWG Lead & 2 18 AWG Leads For GM Alternators W/ Internal Voltage Regulator Replaces 12101895

    AFTERMARKET

    Now: $5.13
    Was: $21.11
    3-Wire Alternator Connector W/ 1 12 AWG Lead & 2 18 AWG Leads Replaces 12101895 GM Alternators W/ Internal Voltage RegulatorKeep your charging system properly connected with this high-quality 3-Wire...
    29-16030005
    SKU:
    29-16030005
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Product Type:
    Engine Parts
    Ready To Ship:
    Yes
    Now: $5.13
    Was: $21.11
    Qty in Cart: 0
    Price:
    Now: $5.13
    Was: $21.11
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  • On Sale
    Limited Quantity Available
    FREE SHIPPING OVER $249
    Stainless Steel 10MM Nylon Insert Lock Nut W/ 1 Inch Diameter 6 MM Thickness

    Stainless Steel 10MM Nylon Insert Lock Nut W/ 1 Inch Diameter 6 MM Thickness

    AFTERMARKET

    Now: $0.08
    Was: $0.34
    10MM Nylon Insert Lock Nut Stainless Steel W/ 1 Inch Diameter 6 MM ThicknessThis 6MM stainless-steel lock nut has a molded nylon insert to lock a bolt into place. Its hex design allows it to be...
    1L2550000A20000
    SKU:
    1L2550000A20000
    Truck Class:
    Heavy Duty
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    Ready To Ship:
    Yes
    Product Type:
    Engine Parts
    Now: $0.08
    Was: $0.34
    Qty in Cart: 0
    Price:
    Now: $0.08
    Was: $0.34
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  • FREE SHIPPING OVER $249
    Ignition Switch W/ 4 Position Lock Tumbler & 4 Screw Terminals For 3/4 Inch to 1 Inch Panel Hole

    Ignition Switch W/ 4 Position Lock Tumbler & 4 Screw Terminals For 3/4 Inch to 1 Inch Panel Hole

    AFTERMARKET

    $17.13
    Ignition Switch W/ 4 Position Lock Tumbler That Fits 3/4 Inch to 1 Inch Panel HoleUniversal 4-position ignition switch fits cars, trucks, boats and heavy equipment. Features key lock security with...
    09-16200066
    SKU:
    09-16200066
    Truck Class:
    Universal
    Make:
    Universal Items
    Product Type:
    Air, Electrical, & Safety
    Ready To Ship:
    Yes
    $17.13
    Qty in Cart: 0
    Price:
    $17.13
    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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