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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.
  • Product
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  • Quantity
  • Price
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  • FREE SHIPPING OVER $249
    BESTfit Heavy Duty Hump Hoses

    BESTfit Heavy Duty Hump Hoses

    BESTFIT TRUCK PARTS

    $45.77 - $82.99
    Improve your charge air system with the gray silicone hump hose for charge air coolers from BESTfit. Built from durable silicone with a thicker wall than standard hump hoses, this aftermarket...
    PPR_202715
    SKU:
    PPR_202715
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Product Type:
    Engine Parts
    Ready To Ship:
    Yes
    $45.77 - $82.99
    Qty in Cart: 0
    Price:
    $45.77 - $82.99
    Subtotal:
  • FREE SHIPPING OVER $249
    BESTfit 4.5 - 4 X 6 Inch Hot Side Charge Air Intake Hump Hose

    BESTfit 4.5 - 4 X 6 Inch Hot Side Charge Air Intake Hump Hose

    BESTFIT TRUCK PARTS

    $76.99
    Red Hump Hose Reducer For Hot Side By BESTfitProtect your turbo system with the BESTfit Hot Side Charge Air Intake Hump Hose, made from high-quality silicone for maximum heat resistance and...
    09-070111
    SKU:
    09-070111
    Product Type:
    Engine Parts
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $76.99
    Qty in Cart: 0
    Price:
    $76.99
    Subtotal:
  • Bully Dog ECM Tuner W/ Emissions Tested & Diagnostic Reader For Caterpillar C11, 12, 13, 15 & 16

    Bully Dog ECM Tuner W/ Emissions Tested & Diagnostic Reader For Caterpillar C11, 12, 13, 15 & 16

    BULLY DOG

    $849.95
    Bully Dog ECM Tuner W/ Speed Limiter Adjustments Fits Caterpillar C11, 12, 13, 15 & 16Get more from your CAT engine with the Bully Dog ECM Tuner, engineered for C16, C15, C13, C12, and C11 models...
    29-0704091
    SKU:
    29-0704091
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Product Type:
    Engine Parts
    Style Options:
    Caterpillar
    Location:
    Made In USA
    $849.95
    Qty in Cart: 0
    Price:
    $849.95
    Subtotal:
  • FREE SHIPPING
    Diesel Fuel Pump System, 250 GPH Industrial Series By FASS

    Diesel Fuel Pump System, 250 GPH Industrial Series By FASS

    FASS

    $934.99
    FASS IND 250G Diesel Fuel Pump SystemFASS Fuel Systems has engineered the top-performing Industrial Series Diesel Fuel System right here in the U.S.A. With advanced 2 Micron filtration, built-in...
    09-07030162
    SKU:
    09-07030162
    Truck Class:
    Universal
    Make:
    Universal Items
    Product Type:
    Engine Parts
    $934.99
    Qty in Cart: 0
    Price:
    $934.99
    Subtotal:
  • FREE SHIPPING OVER $249
    LF14000NN Fleetguard Oil Filter Cummins ISX

    LF14000NN Fleetguard Oil Filter Cummins ISX

    OPP - ORIGINAL PARTS PROGRAM

    $69.99
    LF14000NN Fleetguard Oil Filter Cummins ISX* Fleetguard Oil Filter* For Cummins ISX Shorter Version Of LF9070FLG* Sold Individually* Warranty On Filter Oil Against Defects In Workmanship & Material...
    LF9080FLG
    SKU:
    LF9080FLG
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Product Type:
    Engine Parts
    Ready To Ship:
    Yes
    $69.99
    Qty in Cart: 0
    Price:
    $69.99
    Subtotal:
  • Stainless Steel Carrier Comfort Pro APU Box Cover Kit

    Stainless Steel Carrier Comfort Pro APU Box Cover Kit

    SOARING EAGLE

    $1,070.99
    18.375 X 25 X 28.12 Inch Stainless Steel Carrier Comfort Pro APU Box Cover KitProtect your Carrier Comfort Pro APU in style with this Stainless Steel APU Box Cover Kit. Constructed from premium...
    09-0201031
    SKU:
    09-0201031
    Product Type:
    Engine Parts
    Material Options:
    Stainless Steel
    Height Options:
    28 Inch
    Length Options:
    18 1/4 Inch
    Width Options:
    25 Inch
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $1,070.99
    Qty in Cart: 0
    Price:
    $1,070.99
    Subtotal:
  • One Piece Exhaust Manifold For Cummins ISX/CM570 Engines

    One Piece Exhaust Manifold For Cummins ISX/CM570 Engines

    POWER PLAY PRODUCTS

    $1,326.99 - $1,530.99
    Choose Option(s) to see description.Fitment** Fits Models W/ Cummins ISX/CM570 Engines** Please Verify Fitment Prior To Ordering **Bare Finish Exhaust Manifold- 1 Piece For Cummins ISX/CM570 Engines1...
    PPR_299567
    SKU:
    PPR_299567
    Color:
    Black
    Style Options:
    Cummins
    Product Type:
    Engine Parts
    Material Options:
    Ceramic
    Finish Options:
    Chrome-Plated
    Make:
    Universal Items
    $1,326.99 - $1,530.99
    Qty in Cart: 0
    Price:
    $1,326.99 - $1,530.99
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  • Four Turbo Studs For CAT 3406B, 3406C, 3406E, C15, C16 Engine

    Four Turbo Studs For CAT 3406B, 3406C, 3406E, C15, C16 Engine

    BULLY DOG

    $135.99
    Four Turbo Studs For Caterpillar 14.6L 1989-2003 & 15.8L 1995-1998 EnginesFinish a Turbocharger upgrade with Bully Dog Turbo Studs for a secure installation. This premium ARP Turbo Stud kit includes...
    29-0704096
    SKU:
    29-0704096
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Product Type:
    Engine Parts
    Ready To Ship:
    Yes
    $135.99
    Qty in Cart: 0
    Price:
    $135.99
    Subtotal:
  • International Exhaust Manifold Kit W/ Gaskets Replaces 1814149C2, 1818561C3, 1818561C4 For Models W/ DT466 Engine

    International Exhaust Manifold Kit W/ Gaskets Replaces 1814149C2, 1818561C3, 1818561C4 For Models W/ DT466 Engine

    AUTOMANN USA

    $834.99
    Exhaust Manifold Kit Fits International 4700, 4800, 4900, 5000 PayStar, 7000 WorkStar, 8100, 8200 & 8300Ensure peak performance and reliability for your International truck with the Exhaust Manifold...
    07-070400009
    SKU:
    07-070400009
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Make:
    International
    Product Type:
    Engine Parts
    Ready To Ship:
    Yes
    $834.99
    Qty in Cart: 0
    Price:
    $834.99
    Subtotal:
  • 9 Gallon Steel Rear Sump Oil Pan For Cummins NT855 Big Cam III, IV & N14

    9 Gallon Steel Rear Sump Oil Pan For Cummins NT855 Big Cam III, IV & N14

    AUTOMANN USA

    $460.99
    9 Gallon Steel Rear Sump Oil PanExtend the life of your Cummins engine with this high-quality 9 Gallon Steel Rear Sump Oil Pan, compatible with NT855 Big Cam III, IV, and N14 models. Designed with a...
    29-073031959
    SKU:
    29-073031959
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Product Type:
    Engine Parts
    $460.99
    Qty in Cart: 0
    Price:
    $460.99
    Subtotal:
  • FREE SHIPPING
    Exhaust Manifold Kit - Replaces 150-1914 & 133-3359 For Caterpillar C15 Engine

    Exhaust Manifold Kit - Replaces 150-1914 & 133-3359 For Caterpillar C15 Engine

    AKMI

    $675.99
    Caterpillar C15 Exhaust Manifold KitRestore top-tier performance to your Caterpillar C15 with this expertly crafted Exhaust Manifold Kit. Featuring a cast-iron three-piece construction, this kit...
    29-071501914
    SKU:
    29-071501914
    Truck Class:
    Heavy Duty
    Make:
    Kenworth
    Make:
    Peterbilt
    Product Type:
    Engine Parts
    $675.99
    Qty in Cart: 0
    Price:
    $675.99
    Subtotal:
  • FASS 165 GPH Industrial Series Diesel Fuel Pump System

    FASS 165 GPH Industrial Series Diesel Fuel Pump System

    FASS

    $980.99
    FASS IND 165G Diesel Fuel Pump System* High Quality Fuel System* Ind165G Series FASS* Featuring: - Revolutionary Whisper Technology - 165 Gallons Per Minute At 16-18 PSI* Recommended For 400 - 590...
    09-07030161
    SKU:
    09-07030161
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Product Type:
    Engine Parts
    $980.99
    Qty in Cart: 0
    Price:
    $980.99
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  • Caterpillar C-15 9 Gallon Oil Pan, Replaces 1601428 By BESTfit

    Caterpillar C-15 9 Gallon Oil Pan, Replaces 1601428 By BESTfit

    BESTFIT TRUCK PARTS

    $906.99
    BESTfit Caterpillar C-15 Oil PanThis high quality aluminum aftermarket 9 gallon oil pan that fits Caterpillar C-15 replaces Caterpillar 160-1428 and has a warranty of 1 year.* High Quality Oil Pan*...
    09-071601428
    SKU:
    09-071601428
    Truck Class:
    Heavy Duty
    Material Options:
    Aluminum
    Make:
    International
    Make:
    Western Star
    Make:
    Freightliner
    Make:
    Volvo
    Make:
    Kenworth
    Make:
    Peterbilt
    Capacity:
    9 Gallons
    Product Type:
    Engine Parts
    Ready To Ship:
    Yes
    $906.99
    Qty in Cart: 0
    Price:
    $906.99
    Subtotal:
  • 74mm 26cm A/R Switchblade Turbocharger For Cummins N14 - Up To 575 HP For Cummins N14

    74mm 26cm A/R Switchblade Turbocharger For Cummins N14 - Up To 575 HP For Cummins N14

    SWITCHBLADE TURBO

    $2,235.99
    Switchblade Turbocharger for Cummins N14 Applications* High Quality Switchblade Turbocharger* Significantly Improves Fuel Efficiency By An Estimated 0.5 MPG - 1.5 MPG, Sometimes More* 26 CM Air Ratio...
    29-07050023
    SKU:
    29-07050023
    Product Type:
    Engine Parts
    Location:
    Made In USA
    Make:
    Universal Items
    Style Options:
    Cummins
    $2,235.99
    Qty in Cart: 0
    Price:
    $2,235.99
    Subtotal:
  • FREE SHIPPING OVER $249
    CAT 3406 A-E - Fleetguard Oil Filter

    CAT 3406 A-E - Fleetguard Oil Filter

    OPP - ORIGINAL PARTS PROGRAM

    $30.88
    LF691A Fleetguard Spin-On Oil Filter CAT 3406 A-EThe Fleetguard Spin-On Oil Filter protects your engine with its sturdy and corrosion-resistant build. It can handle demanding conditions without any...
    LF691AFLG
    SKU:
    LF691AFLG
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Product Type:
    Engine Parts
    Ready To Ship:
    Yes
    $30.88
    Qty in Cart: 0
    Price:
    $30.88
    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:
  • 1 Piece Exhaust Manifold Replaces 4P5008, 1005693 For 3406E And Early C15 Caterpillar

    1 Piece Exhaust Manifold Replaces 4P5008, 1005693 For 3406E And Early C15 Caterpillar

    AKMI

    $551.99
    Exhaust Manifold W/ Center & End Section For Cat 3406E & Early C15 Engines* High Quality Exhaust Manifold * 1 Piece Design * Fits Caterpillar 3406 E and Caterpillar Early C15* Includes: Manifold...
    29-07120053
    SKU:
    29-07120053
    Truck Class:
    Heavy Duty
    Material Options:
    Cast Iron
    Make:
    International
    Make:
    Kenworth
    Make:
    Western Star
    Make:
    Peterbilt
    Make:
    Freightliner
    Make:
    Volvo
    Product Type:
    Engine Parts
    Ready To Ship:
    Yes
    $551.99
    Qty in Cart: 0
    Price:
    $551.99
    Subtotal:
  • 78mm 1.32 A/R Switchblade Turbocharger For Detroit Diesel Series 60 12.7L& 14L, Cummins ISX15 & X15 - Up To 700 HP For Detroit Diesel Series 60

    78mm 1.32 A/R Switchblade Turbocharger For Detroit Diesel Series 60 12.7L& 14L, Cummins ISX15 & X15 - Up To 700 HP For Detroit Diesel Series 60

    SWITCHBLADE TURBO

    $2,375.99
    Switchblade Turbocharger for Cummins ISX15, X15 and Detroit Diesel Series 60 12.7L & 14L Applications* High Quality Switchblade Turbocharger* Significantly Improves Fuel Efficiency By An Estimated 0...
    29-07050021
    SKU:
    29-07050021
    Product Type:
    Engine Parts
    Location:
    Made In USA
    Make:
    Universal Items
    Style Options:
    Detroit
    $2,375.99
    Qty in Cart: 0
    Price:
    $2,375.99
    Subtotal:
  • FASS Industrial Series Diesel 290 GPH Fuel System For Class 8 Detroit DD15 Engines

    FASS Industrial Series Diesel 290 GPH Fuel System For Class 8 Detroit DD15 Engines

    FASS

    $903.99
    290 GPH Fuel System Fits Class 8 Detroit DD15 Engines* High Quality Diesel Fuel System* Aluminum Housing* Fass Air Separation Port Ties Into OEM Engine Fuel Return* Preset 16 PSI Fuel Pressure* 290...
    29-070300006
    SKU:
    29-070300006
    Truck Class:
    Heavy Duty
    Material Options:
    Aluminum
    Make:
    Universal Items
    Product Type:
    Engine Parts
    $903.99
    Qty in Cart: 0
    Price:
    $903.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Eaton Fuller Transmission Oil Cooler Mount 18209

    Eaton Fuller Transmission Oil Cooler Mount 18209

    OPP - ORIGINAL PARTS PROGRAM

    $8.12
    Transmission Cooler Mounting Block Kit* High Quality Transmission Mounting Block Kit* Fits 29-07050406 Coolers* Sold Individually* Warranty On Transmission Mounting Block Kits Against Defects In...
    29-07050407
    SKU:
    29-07050407
    Truck Class:
    Heavy Duty
    Material Options:
    Aluminum
    Make:
    Universal Items
    Product Type:
    Engine Parts
    Ready To Ship:
    Yes
    $8.12
    Qty in Cart: 0
    Price:
    $8.12
    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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