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Engine & Performance Parts

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  • Qty in Cart
  • Quantity
  • Price
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  • Turbocharger For 3406E 475-550 HP CAT Equipped Trucks

    Turbocharger For 3406E 475-550 HP CAT Equipped Trucks

    AFTERMARKET

    $2,192.99
    Turbocharger Fits 3406E 475-550 HP CAT Equipped TrucksThe OE-TurboPower turbo is precisely calibrated to meet modern heavy-duty engine demands. Rigorous quality control inspections are conducted to...
    09-0704040
    SKU:
    09-0704040
    Truck Class:
    Universal
    Material Options:
    Aluminum
    Make:
    Universal Items
    Product Type:
    Engine Parts
    $2,192.99
    Qty in Cart: 0
    Price:
    $2,192.99
    Subtotal:
  • Bully Dog 9 Pin Diagnostic Plug For 2016-Newer J1939 Type 2 Plug System

    Bully Dog 9 Pin Diagnostic Plug For 2016-Newer J1939 Type 2 Plug System

    BULLY DOG

    $89.19
    Replacement Diagnostic Plug For 2016 & Newer CompatibilityIf you are moving an older Bully Dog device to a newer vehicle, 4 State Trucks can help you keep compatibility with this 9 pin diagnostic...
    09-070400004
    SKU:
    09-070400004
    Truck Class:
    Heavy Duty
    Make:
    Ford
    Make:
    Mack
    Make:
    Kenworth
    Make:
    Western Star
    Make:
    Freightliner
    Make:
    Peterbilt
    Make:
    International
    Make:
    Volvo
    Product Type:
    Engine Parts
    Ready To Ship:
    Yes
    $89.19
    Qty in Cart: 0
    Price:
    $89.19
    Subtotal:
  • Bully Dog 6 Pin Diagnostic Plug

    Bully Dog 6 Pin Diagnostic Plug

    BULLY DOG

    $63.49
    Replacement Diagnostic Plug For Bully Dog DevicesIf you lost or damaged your 6 pin diagnostic plug, 4 State Trucks has you covered. This high quality replacement part will get your Bully Dog device...
    09-070400003
    SKU:
    09-070400003
    Truck Class:
    Universal
    Make:
    Universal Items
    Product Type:
    Engine Parts
    $63.49
    Qty in Cart: 0
    Price:
    $63.49
    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
    Ready To Ship:
    Yes
    $934.99
    Qty in Cart: 0
    Price:
    $934.99
    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
    Subtotal:
  • FREE SHIPPING OVER $249
    FASS Fuel System Mounting Bracket - Eliminates Frame Drilling

    FASS Fuel System Mounting Bracket - Eliminates Frame Drilling

    FASS

    $161.99
    FASS Fuel System Mounting Bracket* High Quality Bracket* Eliminates Frame Drilling* Fits Frame Heights From 10 Inch To 11.75 Inch* Designed To Fit Securely Around The Frame* Sold Individually* Made...
    09-07030153
    SKU:
    09-07030153
    Truck Class:
    Heavy Duty
    Location:
    Made In USA
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Engine Parts
    $161.99
    Qty in Cart: 0
    Price:
    $161.99
    Subtotal:
  • Electric Diesel Fuel Heater Kit For FASS System Titanium Series

    Electric Diesel Fuel Heater Kit For FASS System Titanium Series

    FASS

    $207.99
    Titanium Series Optional Electric Diesel Fuel Heater KitUpgrade your FASS System for extreme cold with the Titanium Series Electric Heater Kits. These heaters prevent gelling, aid cold weather...
    09-07030148
    SKU:
    09-07030148
    Truck Class:
    Universal
    Location:
    Made In USA
    Make:
    Universal Items
    Product Type:
    Engine Parts
    $207.99
    Qty in Cart: 0
    Price:
    $207.99
    Subtotal:
  • Mounting Package For Fuel Pump W/ 140. 240. 250.260 Or 290 GPH Flow Rating

    Mounting Package For Fuel Pump W/ 140. 240. 250.260 Or 290 GPH Flow Rating

    FASS

    $48.43
    Mounting Package For Fuel Pump W/ 140. 240. 250.260 Or 290 GPH Flow Rating* High Quality Mounting Package* For Fuel Pumps With 140, 240, 250, 260, Or 290 Gallons Per Hour Flow Rating* Universal In...
    09-07030011
    SKU:
    09-07030011
    Truck Class:
    Universal
    Make:
    Universal Items
    Product Type:
    Engine Parts
    $48.43
    Qty in Cart: 0
    Price:
    $48.43
    Subtotal:
  • Mounting Package For Fuel Pump W/ 100 Or 165 GPH Flow Rating For Class 8 Applications

    Mounting Package For Fuel Pump W/ 100 Or 165 GPH Flow Rating For Class 8 Applications

    FASS

    $50.99
    Mounting Package For Fuel Pump W/ 100 Or 165 GPH Flow Rating* High Quality Mounting Package* For Fuel Pumps With 100 Or 165 Gallons Per Hour Flow Rating* Made In The USA* Sold Individually* Warranty...
    09-07030010
    SKU:
    09-07030010
    Truck Class:
    Universal
    Make:
    Universal Items
    Product Type:
    Engine Parts
    $50.99
    Qty in Cart: 0
    Price:
    $50.99
    Subtotal:
  • FASS Fuel Systems Fuel System Mounting For Class 8 Trucks Titanium Universal High Pressure

    FASS Fuel Systems Fuel System Mounting For Class 8 Trucks Titanium Universal High Pressure

    FASS

    $50.99
    Mounting Package For Fuel Pumps Fits Class 8 TrucksFASS fuel system mounting packages make installing your new FASS fuel pump quick and easy. These mounts feature durable construction and come with...
    09-07030009
    SKU:
    09-07030009
    Truck Class:
    Universal
    Make:
    Universal Items
    Product Type:
    Engine Parts
    $50.99
    Qty in Cart: 0
    Price:
    $50.99
    Subtotal:
  • Mounting Package For Fuel Pump W/ 95 Or 165 GPH Flow Rating For Class 8 Applications

    Mounting Package For Fuel Pump W/ 95 Or 165 GPH Flow Rating For Class 8 Applications

    FASS

    $40.79
    Mounting Package For Fuel Pump W/ 95 Or 165 GPH Flow Rating* High Quality Mounting Package* For Fuel Pump For Class 8 Trucks* For Fuel Pumps With 95 Or 165 Gallons Per Hour Flow Rating* Made In The...
    09-07030008
    SKU:
    09-07030008
    Truck Class:
    Universal
    Make:
    Universal Items
    Product Type:
    Engine Parts
    $40.79
    Qty in Cart: 0
    Price:
    $40.79
    Subtotal:
  • FASS Industrial Series Diesel 260 GPH Fuel System, Class 8

    FASS Industrial Series Diesel 260 GPH Fuel System, Class 8

    FASS

    $1,135.99
    260 GPH Fuel System* High Quality Diesel Fuel System* Aluminum Housing* Fass Air Separation Port Ties Into OEM Engine Fuel Return* Preset 16 PSI Fuel Pressure* 260 Gallons Per Hour Flow Rating*...
    09-07030007
    SKU:
    09-07030007
    Truck Class:
    Universal
    Material Options:
    Aluminum
    Make:
    Universal Items
    Product Type:
    Engine Parts
    $1,135.99
    Qty in Cart: 0
    Price:
    $1,135.99
    Subtotal:
  • FASS Industrial Series Diesel 240 GPH Fuel System, Class 8

    FASS Industrial Series Diesel 240 GPH Fuel System, Class 8

    FASS

    $891.99
    240 GPH Fuel SystemThis Industrial Series Diesel Fuel System delivers 240 gallons per hour and connects seamlessly to your OEM engine fuel return, no extra fuel line needed. With a 16 PSI preset...
    09-07030006
    SKU:
    09-07030006
    Truck Class:
    Universal
    Material Options:
    Aluminum
    Make:
    Universal Items
    Product Type:
    Engine Parts
    $891.99
    Qty in Cart: 0
    Price:
    $891.99
    Subtotal:
  • FASS Industrial Series Diesel 140 GPH Fuel System, Class 8

    FASS Industrial Series Diesel 140 GPH Fuel System, Class 8

    FASS

    $1,032.99
    140 GPH Fuel System* High Quality Diesel Fuel System* Aluminum Housing* Fass Air Separation Port Ties Into OEM Engine Fuel Return* Preset 16 PSI Fuel Pressure* 140 Gallons Per Hour Flow Rating*...
    09-07030005
    SKU:
    09-07030005
    Truck Class:
    Universal
    Material Options:
    Aluminum
    Make:
    Universal Items
    Product Type:
    Engine Parts
    $1,032.99
    Qty in Cart: 0
    Price:
    $1,032.99
    Subtotal:
  • FASS Industrial Series Diesel 100 GPH Fuel System For Class 8 UIM Engines

    FASS Industrial Series Diesel 100 GPH Fuel System For Class 8 UIM Engines

    FASS

    $789.99
    100 GPH Fuel System Fits Class 8 UIM Engines* High Quality Diesel Fuel System* Aluminum Housing* Fass Air Separation Port Ties Into OEM Engine Fuel Return* Preset 16 PSI Fuel Pressure * 100 Gallons...
    09-07030003
    SKU:
    09-07030003
    Truck Class:
    Universal
    Material Options:
    Aluminum
    Make:
    Universal Items
    Product Type:
    Engine Parts
    $789.99
    Qty in Cart: 0
    Price:
    $789.99
    Subtotal:
  • FASS Industrial Series Diesel 290 GPH Fuel System, Class 8 For Cummins, Cat, Detroit Diesel Trucks

    FASS Industrial Series Diesel 290 GPH Fuel System, Class 8 For Cummins, Cat, Detroit Diesel Trucks

    FASS

    $1,096.99
    290 GPH Fuel System, Class 8 Fits Cummins, Cat, Detroit Diesel Trucks* High Quality Diesel Fuel System* Aluminum Housing* 8 Fass Air Separation Port Ties Into OEM Engine Fuel Return* Preset 16 PSI...
    09-07030002
    SKU:
    09-07030002
    Truck Class:
    Universal
    Material Options:
    Aluminum
    Make:
    Universal Items
    Product Type:
    Engine Parts
    $1,096.99
    Qty in Cart: 0
    Price:
    $1,096.99
    Subtotal:
  • FREE SHIPPING OVER $249
    6.469 Inch OD Power Steering Pump Pulley With 6 Grooves For Isuzu NPR & NPR HD

    6.469 Inch OD Power Steering Pump Pulley With 6 Grooves For Isuzu NPR & NPR HD

    DAYTON / DORMAN

    $58.99
    Black Steel Power Steering Pump Pulley Replaces 8-10085-755-0, 8-12573-728-0Depend on the 6.469 Inch OD Power Steering Pump Pulley to maintain smooth steering on your Isuzu NPR and NPR HD...
    08-071401
    SKU:
    08-071401
    Truck Class:
    Heavy Duty
    Make:
    Isuzu
    Product Type:
    Engine Parts
    $58.99
    Qty in Cart: 0
    Price:
    $58.99
    Subtotal:
  • Power Steering Reservoir Replaces 2503221C1, BT9388, 84191 & HF35448 For International

    Power Steering Reservoir Replaces 2503221C1, BT9388, 84191 & HF35448 For International

    AUTOMANN USA

    $21.88
    Power Steering Reservoir Fits InternationalKeep your International truck's steering responsive with the Power Steering Reservoir. Constructed with precision, it has a 2.656-inch diameter and 3/4 Inch...
    07-0714002
    SKU:
    07-0714002
    Truck Class:
    Heavy Duty
    Make:
    International
    Product Type:
    Engine Parts
    $21.88
    Qty in Cart: 0
    Price:
    $21.88
    Subtotal:
  • Heavy Duty Power Steering Reservoir For International

    Heavy Duty Power Steering Reservoir For International

    AUTOMANN USA

    $145.99
    Power Steering Reservoir Fits InternationalUpgrade your power steering reservoir with this high quality aftermarket replacement. It is designed to fit like the original part with an improved cap to...
    07-0714001
    SKU:
    07-0714001
    Truck Class:
    Heavy Duty
    Make:
    International
    Product Type:
    Engine Parts
    $145.99
    Qty in Cart: 0
    Price:
    $145.99
    Subtotal:
  • Power Steering Pump Replaces 3623641C91, 3623641C94 For International LoneStar, ProStar

    Power Steering Pump Replaces 3623641C91, 3623641C94 For International LoneStar, ProStar

    AUTOMANN USA

    $717.99
    Power Steering Pump Fits International LoneStar & ProStar* High Quality Power Steering Pump* Flow Rate 6.00 GPM* 2683 PSI* Left Hand CCW Rotation* Supply 1-1/16-12 UN* Discharge3/14-16 UNF* Use with...
    07-07120003
    SKU:
    07-07120003
    Truck Class:
    Heavy Duty
    Make:
    International
    Product Type:
    Engine Parts
    $717.99
    Qty in Cart: 0
    Price:
    $717.99
    Subtotal:
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Adding your products to cart

Frequently Asked Questions About Engine & Performance Parts

How do I know if an engine or performance part will fit my truck?

Fitment depends on your truck's make, model, engine family, and year, so it's important to check the compatibility details listed on each product page before ordering. If you're unsure, have your VIN or engine serial number on hand and reach out to our team so we can confirm the part matches your specific setup.

Will installing a performance part affect my truck's warranty or emissions compliance?

Some engine and performance components, especially those related to fuel delivery, exhaust, or emissions systems, can impact manufacturer warranties or federal and state emissions compliance depending on your truck's model year and how it's used. We recommend reviewing manufacturer warranty terms and local regulations before installing any part that alters factory engine settings or emissions output.

Can I install these parts myself, or do I need a professional?

Many parts, such as filters, gaskets, sensors, and belts, are straightforward enough for an experienced DIYer with the right tools. More involved components, like turbochargers, ECM modules, or major engine internals, typically require professional installation to ensure proper calibration and to avoid damage. If a listing includes detailed install instructions or torque specs, that's a good sign the job can be handled in-house; otherwise, we suggest having a qualified diesel technician install it.

What's the difference between OEM and aftermarket performance parts?

OEM parts are made to match your truck's original factory specifications, offering predictable fit and performance. Aftermarket performance parts are often designed to improve on stock capability, whether that's horsepower, fuel efficiency, or durability, but quality and results can vary by brand. We list manufacturer information on each product page so you can compare options and choose what fits your priorities and budget.

How long do engine and performance parts typically last before needing replacement?

Lifespan varies widely depending on the specific part, how the truck is used, and maintenance habits. Wear items like filters and belts need more frequent replacement, while components like turbochargers or sensors can last much longer with proper care. Check the product description for any manufacturer-suggested service intervals, and keep an eye on your truck's performance for early signs that a part may need attention.


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