null

Engine & Performance Parts

  • Product
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • High Flow Performance Air Filter With Washable Element Media For Freightliner Cascadia 116/126

    High Flow Performance Air Filter With Washable Element Media For Freightliner Cascadia 116/126

    FLEET FILTERS

    $585.99
    High Performance Air Filter Media, Replaces FA6102You never need to waste money on paper filters again! 4 State Trucks proudly offers Fleet Air Filters, the only lifetime, washable, high flow, air...
    29-071300036
    SKU:
    29-071300036
    Truck Class:
    Heavy Duty
    Make:
    Freightliner
    Product Type:
    Engine Parts
    $585.99
    Qty in Cart: 0
    Price:
    $585.99
    Subtotal:
  • High Flow Performance Air Filter With Washable Element Media For Freightliner, International & Peterbilt

    High Flow Performance Air Filter With Washable Element Media For Freightliner, International & Peterbilt

    FLEET FILTERS

    $444.99
    High Performance Air Filter Media, Replaces FA3516You never need to waste money on paper filters again! 4 State Trucks proudly offers Fleet Air Filters, the only lifetime, washable, high flow, air...
    29-071300007
    SKU:
    29-071300007
    Truck Class:
    Heavy Duty
    Make:
    Peterbilt
    Product Type:
    Engine Parts
    $444.99
    Qty in Cart: 0
    Price:
    $444.99
    Subtotal:
  • 3 Layer Replacement Air Filter Wrap For 29-071300001 High Performance Air Filter For Freightliner, Mack & Peterbilt

    3 Layer Replacement Air Filter Wrap For 29-071300001 High Performance Air Filter For Freightliner, Mack & Peterbilt

    FLEET FILTERS

    $195.99
    3 Layer Replacement Air Filter Wrap For High Performance Air Filter* High Quality Replacement Air Filter Wrap* For 29-071300001* 3 Layer Design* Do Not Come Pre-Oiled* Oil Is Required Before...
    29-071300003
    SKU:
    29-071300003
    Truck Class:
    Heavy Duty
    Make:
    Peterbilt
    Product Type:
    Engine Parts
    $195.99
    Qty in Cart: 0
    Price:
    $195.99
    Subtotal:
  • High Flow Performance Air Filter With Washable Element Media For Freightliner, Mack & Peterbilt

    High Flow Performance Air Filter With Washable Element Media For Freightliner, Mack & Peterbilt

    FLEET FILTERS

    $444.99
    High Performance Air Filter, Replaces FA2680You never need to waste money on paper filters again! 4 State Trucks proudly offers Fleet Air Filters, the only lifetime, washable, high flow, air filters...
    29-071300001
    SKU:
    29-071300001
    Truck Class:
    Heavy Duty
    Make:
    Peterbilt
    Product Type:
    Engine Parts
    $444.99
    Qty in Cart: 0
    Price:
    $444.99
    Subtotal:
  • On Sale
    FREE SHIPPING OVER $249
    Limited Quantity Available
    BESTfit Water Pump For Detroit DD15 Engine - Replaces 4722000401

    BESTfit Water Pump For Detroit DD15 Engine - Replaces 4722000401

    BESTFIT TRUCK PARTS

    Now: $55.00
    Was: $102.99
    BESTfit Water Pump For Detroit DD15 Engine* High Quality Water Pump* For DD15* Sold Individually* Warranty On Water Pumps Against Defects In Workmanship & Material From Date Of Purchase*** High...
    29-071206
    SKU:
    29-071206
    Truck Class:
    Heavy Duty
    Product Type:
    Engine Parts
    Ready To Ship:
    Yes
    Now: $55.00
    Was: $102.99
    Qty in Cart: 0
    Price:
    Now: $55.00
    Was: $102.99
    Subtotal:
  • BESTfit Water Pump For Cummins ISX 15L With 12 Groove Pulley Replaces 4089910 For International ProStar & Volvo VNL II, Cummins ISX

    BESTfit Water Pump For Cummins ISX 15L With 12 Groove Pulley Replaces 4089910 For International ProStar & Volvo VNL II, Cummins ISX

    BESTFIT TRUCK PARTS

    $257.99
    BESTfit 12 Groove Pulley Water PumpPrevent engine overheating and maintain efficiency with the BESTfit Water Pump for Cummins ISX 15L. Engineered for a 12-groove pulley, this durable pump replaces...
    29-071201
    SKU:
    29-071201
    Truck Class:
    Heavy Duty
    Make:
    International
    Make:
    Volvo
    Product Type:
    Engine Parts
    Style Options:
    Cummins
    $257.99
    Qty in Cart: 0
    Price:
    $257.99
    Subtotal:
  • 2-Piece Water Pump Replaces 5406043RX For Cummins Engines W/ ISX 870-871 EGR

    2-Piece Water Pump Replaces 5406043RX For Cummins Engines W/ ISX 870-871 EGR

    AUTOMANN USA

    $509.99
    2-Piece Water Pump Fits Cummins Engines W/ ISX 870-871 EGRProtect your Cummins engine with the 2-Piece Water Pump, designed for ISX 870-871 EGR applications. Sold individually, this high-quality...
    29-0712001
    SKU:
    29-0712001
    Truck Class:
    Heavy Duty
    Product Type:
    Engine Parts
    Ready To Ship:
    Yes
    $509.99
    Qty in Cart: 0
    Price:
    $509.99
    Subtotal:
  • BESTfit EGR Cooler For Cummins ISX Gen 3 Engine 2010-2013

    BESTfit EGR Cooler For Cummins ISX Gen 3 Engine 2010-2013

    BESTFIT TRUCK PARTS

    $1,825.99
    BESTfit EGR Cooler - Replaces 3689282, 3686710, 3687048, 2892893 & 3687813* High Quality EGR Cooler* For Cummins ISX GEN 3* Sold Individually* Warranty On EGR Coolers Against Defects In Workmanship &...
    29-0711021
    SKU:
    29-0711021
    Truck Class:
    Heavy Duty
    Product Type:
    Engine Parts
    $1,825.99
    Qty in Cart: 0
    Price:
    $1,825.99
    Subtotal:
  • BESTfit EGR Cooler For Detroit DD15 60 Series Engine - Replaces 4721400475

    BESTfit EGR Cooler For Detroit DD15 60 Series Engine - Replaces 4721400475

    BESTFIT TRUCK PARTS

    $1,951.99
    BESTfit EGR Cooler For Detroit DD15 60 Series Engine* High Quality EGR Cooler* For DD15 60 Series * Sold Individually* Warranty On EGR Coolers Against Defects In Workmanship & Material From Date Of...
    29-0711020
    SKU:
    29-0711020
    Truck Class:
    Heavy Duty
    Product Type:
    Engine Parts
    $1,951.99
    Qty in Cart: 0
    Price:
    $1,951.99
    Subtotal:
  • BESTfit EGR Cooler For Detroit 14.0L DDEC VII 60 Series Engine - Replaces 23537387

    BESTfit EGR Cooler For Detroit 14.0L DDEC VII 60 Series Engine - Replaces 23537387

    BESTFIT TRUCK PARTS

    $1,725.99
    BESTfit EGR Cooler For Detroit 14.0L DDEC VII 60 Series Engine* High Quality EGR Cooler* For Detroit Series 60* 14.0L DDEC VII 2007-2009* Sold Individually* Warranty On EGR Coolers Against Defects In...
    29-0711018
    SKU:
    29-0711018
    Truck Class:
    Heavy Duty
    Product Type:
    Engine Parts
    $1,725.99
    Qty in Cart: 0
    Price:
    $1,725.99
    Subtotal:
  • EGR Cooler Heavy Duty Gasket Kit Replaces 4309491NX For Cummins ISX Gen 2I 15L Engine

    EGR Cooler Heavy Duty Gasket Kit Replaces 4309491NX For Cummins ISX Gen 2I 15L Engine

    DAYTON / DORMAN

    $296.99
    EGR Cooler Heavy Duty Gasket Kit For Cummins ISX Gen 2I 15 Liter 2010-2011Avoid costly downtime with the EGR Cooler Heavy Duty Gasket Kit for Cummins ISX 15L Gen 2I. Including all gaskets and...
    29-0711008
    SKU:
    29-0711008
    Truck Class:
    Heavy Duty
    Make:
    Kenworth
    Make:
    Freightliner
    Make:
    Western Star
    Make:
    Peterbilt
    Make:
    Volvo
    Product Type:
    Engine Parts
    $296.99
    Qty in Cart: 0
    Price:
    $296.99
    Subtotal:
  • EGR Cooler Heavy Duty Gasket Kit Replaces 2881725NX For Cummins ISM Gen II 10.8L Engine

    EGR Cooler Heavy Duty Gasket Kit Replaces 2881725NX For Cummins ISM Gen II 10.8L Engine

    DAYTON / DORMAN

    $120.99
    EGR Cooler Heavy Duty Gasket Kit Fits Cummins ISM Gen II 10.8 Liter 2007-2010Maintain efficient exhaust flow in your Cummins ISM Gen II 10.8L engine with the EGR Cooler Gasket Kit. Engineered for a...
    29-0711007
    SKU:
    29-0711007
    Truck Class:
    Heavy Duty
    Make:
    Peterbilt
    Make:
    Kenworth
    Make:
    Volvo
    Make:
    Freightliner
    Make:
    Western Star
    Product Type:
    Engine Parts
    $120.99
    Qty in Cart: 0
    Price:
    $120.99
    Subtotal:
  • FREE SHIPPING OVER $249
    EGR Cooler Gasket Kit Replaces 4309398 For Cummins ISX Gen II 15L Engines

    EGR Cooler Gasket Kit Replaces 4309398 For Cummins ISX Gen II 15L Engines

    DAYTON / DORMAN

    $148.99
    EGR Cooler Heavy Duty Gasket Kit Fits Cummins ISX Gen II 15L 2007-2010Maintain reliable emission control in your Cummins ISX Gen II 15L with the EGR Cooler Gasket Kit. Engineered to provide a tight...
    29-0711002
    SKU:
    29-0711002
    Truck Class:
    Heavy Duty
    Make:
    International
    Make:
    Western Star
    Make:
    Freightliner
    Make:
    Volvo
    Make:
    Kenworth
    Make:
    Peterbilt
    Product Type:
    Engine Parts
    $148.99
    Qty in Cart: 0
    Price:
    $148.99
    Subtotal:
  • FREE SHIPPING OVER $249
    3 Inch Steel EGR Cooler V-Band Clamp Replaces 3683144 For Cummins ISM, M11 Engine

    3 Inch Steel EGR Cooler V-Band Clamp Replaces 3683144 For Cummins ISM, M11 Engine

    AUTOMANN USA

    $22.66
    3 Inch EGR Cooler V-Band ClampMaintain efficient EGR performance on your Cummins ISM or M11 engine with the 3 Inch Steel V-Band Clamp, replacing 3683144. Its metallic gray smooth steel construction,...
    29-071100002
    SKU:
    29-071100002
    Truck Class:
    Heavy Duty
    Make:
    Kenworth
    Make:
    Peterbilt
    Product Type:
    Frame & Chassis
    $22.66
    Qty in Cart: 0
    Price:
    $22.66
    Subtotal:
  • Engine Camshaft Position Sensor 4921599, ?577.90541 For Cummins ISX 15L Engines

    Engine Camshaft Position Sensor 4921599, ?577.90541 For Cummins ISX 15L Engines

    DAYTON / DORMAN

    $50.99
    Dorman Replacement Camshaft Position Sensor With Round ConnectorThis engine camshaft position sensor is designed to match the fit and function of an original sensor to help ensure the engine control...
    29-071047
    SKU:
    29-071047
    Truck Class:
    Heavy Duty
    Product Type:
    Engine Parts
    $50.99
    Qty in Cart: 0
    Price:
    $50.99
    Subtotal:
  • Ambient Air Pressure Sensor With Rounded Rectangular Connector Replaces 2897331 4076493 For Cummins ISX ISM

    Ambient Air Pressure Sensor With Rounded Rectangular Connector Replaces 2897331 4076493 For Cummins ISX ISM

    AUTOMANN USA

    $48.51
    Cummins ISX ISM Intake Pressure SensorEnsure your Cummins engine operates at its best with the Ambient Air Pressure Sensor With Rounded Rectangular Connector. This durable sensor includes a rectangle...
    29-071045
    SKU:
    29-071045
    Truck Class:
    Heavy Duty
    Product Type:
    Engine Parts
    $48.51
    Qty in Cart: 0
    Price:
    $48.51
    Subtotal:
  • Turbocharger Speed Sensor With Rectangle Connector Replaces 4032173 For Cummins ISX Engine

    Turbocharger Speed Sensor With Rectangle Connector Replaces 4032173 For Cummins ISX Engine

    DAYTON / DORMAN

    $245.99
    Turbocharger Speed Sensor* High Quality Speed Sensor* Black Rectangle Female Connector * Blade Connector/Terminal * Mounting Bracket Included* Sold Individually* Warranty On Speed Sensor Against...
    29-071043
    SKU:
    29-071043
    Truck Class:
    Heavy Duty
    Product Type:
    Engine Parts
    $245.99
    Qty in Cart: 0
    Price:
    $245.99
    Subtotal:
  • Fuel Pressure Sensor Replaces 4921519, 4087993 For Cummins ISX Engines

    Fuel Pressure Sensor Replaces 4921519, 4087993 For Cummins ISX Engines

    AUTOMANN USA

    $103.99
    Fuel Pressure Sensor Fits Cummins ISX EnginesMonitor your Cummins ISX engine's fuel system accurately with the Fuel Pressure Sensor, replacing part numbers 4921519 and 4087993. This metal-housed...
    29-071042
    SKU:
    29-071042
    Truck Class:
    Heavy Duty
    Product Type:
    Engine Parts
    $103.99
    Qty in Cart: 0
    Price:
    $103.99
    Subtotal:
  • Steel Screw-On Exhaust Brake Actuator Replaces 4024759 & 45591024614 For Cummins ISX

    Steel Screw-On Exhaust Brake Actuator Replaces 4024759 & 45591024614 For Cummins ISX

    DAYTON / DORMAN

    $194.99
    Exhaust Brake Actuator* High Quality Exhaust Brake Actuator* Steel Flange Material* Gray Housing* 0.12 In. Pipe Inlet Inside Diameter* 0.12 In. Pipe Outlet Inside Diameter* Screw On Mount Type*...
    29-0704506
    SKU:
    29-0704506
    Truck Class:
    Heavy Duty
    Make:
    Kenworth
    Make:
    Peterbilt
    Product Type:
    Engine Parts
    $194.99
    Qty in Cart: 0
    Price:
    $194.99
    Subtotal:
  • Turbocharger Installation Gasket Kit For International

    Turbocharger Installation Gasket Kit For International

    DAYTON / DORMAN

    $20.53
    Turbocharger Installation Gasket Kit Fits Ford & InternationalComplete your turbocharger installation with confidence using the Turbocharger Installation Gasket Kit for International engines. This...
    29-0704112
    SKU:
    29-0704112
    Truck Class:
    Heavy Duty
    Make:
    International
    Make:
    Ford
    Product Type:
    Engine Parts
    $20.53
    Qty in Cart: 0
    Price:
    $20.53
    Subtotal:
  • Total: items /

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.


Introducing the Official 4 State Trucks Mobile App – Gear Up On the Go!