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No Idle

Looking for ways to eliminate idling and save energy in your semi-truck? 4 State Trucks has the solution with our top-notch Semi-Truck No Idle products. Our Cab Power options provide the convenience of "living room" electrical amenities for truck drivers, while our easy-to-install evaporator ensures better, quieter airflow and enhanced cooling capacity without the need for duct work. Say goodbye to unnecessary idling and hello to efficient energy use.
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  • Fuel Pump For Espar/Eberspacher Airtronic D2/D4 Model Heater

    Fuel Pump For Espar/Eberspacher Airtronic D2/D4 Model Heater

    AFTERMARKET

    $237.99
    Fuel Pump Replaces 22.4519.01.0000, 22 4519 01 0000, 224519010000Support consistent heater output with this 12V Fuel Pump designed for the Espar/Eberspacher Airtronic D2 and D4 Model Heaters...
    09-15030033
    SKU:
    09-15030033
    Make:
    Universal Items
    Product Type:
    Exterior
    $237.99
    Qty in Cart: 0
    Price:
    $237.99
    Subtotal:
  • Diesel Fuel Pump W/ Out Damper For DP30 Webasto Heater

    Diesel Fuel Pump W/ Out Damper For DP30 Webasto Heater

    AFTERMARKET

    $165.99
    Diesel Fuel Pump W/ Out Damper Replaces 9012868CDepend on consistent fuel supply with this Diesel Fuel Pump without damper compatible with the DP30 Webasto Heater. It delivers precise diesel flow to...
    09-15030034
    SKU:
    09-15030034
    Make:
    Universal Items
    Product Type:
    Exterior
    $165.99
    Qty in Cart: 0
    Price:
    $165.99
    Subtotal:
  • Fuel Pump W/ Damper For EVO 40/55 Webasto Thermo Top Heater

    Fuel Pump W/ Damper For EVO 40/55 Webasto Thermo Top Heater

    AFTERMARKET

    $193.99
    Fuel Pump W/ Damper Replaces 1324533A, 9024803A, 9024802AMaintain smooth and efficient heater function with this durable Fuel Pump with Damper for the EVO 40/55 Webasto Thermo Top Heater. Designed...
    09-15030036
    SKU:
    09-15030036
    Make:
    Universal Items
    Product Type:
    Exterior
    $193.99
    Qty in Cart: 0
    Price:
    $193.99
    Subtotal:
  • RigMaster APU Shielded Cable For Caterpillar, Perkins & Kohler

    RigMaster APU Shielded Cable For Caterpillar, Perkins & Kohler

    RIGMASTER

    $7.74
    APU Shielded Cable By RigMasterKeep your APU running smoothly with the RigMaster Shielded Ethernet Cable. Built for Caterpillar, Perkins, and Kohler engines, it provides high-quality,...
    RP79003
    SKU:
    RP79003
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $7.74
    Qty in Cart: 0
    Price:
    $7.74
    Subtotal:
  • Universal Espar Drop-in Air Heater Kit -2kW 12V Model PH21 C/W Digital Switch

    Universal Espar Drop-in Air Heater Kit -2kW 12V Model PH21 C/W Digital Switch

    AFTERMARKET

    $697.99
    Diesel Fired Drop in Bunk Air Heater KitThe Universal Espar Drop-in Air Heater Kit 2KW 12V Model PH21, complete with a digital switch, is specifically designed to replace the Espar heater Model 25...
    09-15030011
    SKU:
    09-15030011
    Truck Class:
    Universal
    Make:
    Universal Items
    Product Type:
    Interior
    $697.99
    Qty in Cart: 0
    Price:
    $697.99
    Subtotal:
  • FREE SHIPPING OVER $249
    3406 CAT & Detroit Block Heater 1500 Watt With Plug 3600008

    3406 CAT & Detroit Block Heater 1500 Watt With Plug 3600008

    OPP - ORIGINAL PARTS PROGRAM

    $103.99
    Heavy Duty Engine Block Immersion Heater for Caterpillar, Detroit Diesel, International/Navistar and Perkins Engines* High Quality Block Heater* For Use With CAT / Detroit Diesel Engine * 1500 Watt*...
    09-0722001
    SKU:
    09-0722001
    Truck Class:
    Universal
    Make:
    Universal Items
    Product Type:
    Engine Parts
    Ready To Ship:
    Yes
    $103.99
    Qty in Cart: 0
    Price:
    $103.99
    Subtotal:
  • FREE SHIPPING OVER $249
    1500 Watt Engine Block Heater 3500038 For Cummins Signature 600 ISX & QSX

    1500 Watt Engine Block Heater 3500038 For Cummins Signature 600 ISX & QSX

    OPP - ORIGINAL PARTS PROGRAM

    $100.99
    ENGINE HEATER - 1500W 12* High Quality Block Heater* 1500 Watt With Plug* Plate Mount* 120 Volt* Fits Cummins Signature 600 ISX QSX * Gasket Not Included* Reuse Old Gasket* Sold Individually*...
    09-0722000
    SKU:
    09-0722000
    Truck Class:
    Universal
    Make:
    Universal Items
    Product Type:
    Engine Parts
    $100.99
    Qty in Cart: 0
    Price:
    $100.99
    Subtotal:
  • FREE SHIPPING
    Thermo King Tripac Evolution APU Stainless Steel Cover

    Thermo King Tripac Evolution APU Stainless Steel Cover

    BRUNNER FABRICATION

    $1,782.99
    Stainless Steel Auxiliary Power Unit CoverFind a superior replacement for your old APU covers at 4 State Trucks! This Thermo King Tripac Evolution API cover is made with top-grade 304 stainless steel...
    09-020100541
    SKU:
    09-020100541
    Truck Class:
    Universal
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    Finish Options:
    Polished
    Position:
    Kit Full
    Product Type:
    Frame & Chassis
    $1,782.99
    Qty in Cart: 0
    Price:
    $1,782.99
    Subtotal:
  • Kenworth T600, T660, T800, W900 AC Evaporator Replaces 1614004, 6601, N83-307300, 151328, NA1090, ZGG708010, 1614004, 307300BSM, 3949307

    Kenworth T600, T660, T800, W900 AC Evaporator Replaces 1614004, 6601, N83-307300, 151328, NA1090, ZGG708010, 1614004, 307300BSM, 3949307

    SOARING EAGLE

    $303.99
    Replacement Kenworth EvaporatorUpgrade your Kenworth's cooling system with a high-quality replacement evaporator. Stay cool and comfortable on the road with this durable and reliable component. Find...
    02-1503041
    SKU:
    02-1503041
    Truck Class:
    Heavy Duty
    Make:
    Kenworth
    Product Type:
    Interior
    $303.99
    Qty in Cart: 0
    Price:
    $303.99
    Subtotal:
  • Kenworth T600, T660, T800, W900 Replacement Heater Core

    Kenworth T600, T660, T800, W900 Replacement Heater Core

    SOARING EAGLE

    $314.99
    Replacement Kenworth Heater CoreLooking for a top-quality replacement Kenworth heater core? Get superior heating performance with this durable and reliable heater cores. Keep your Kenworth truck warm...
    02-1503040
    SKU:
    02-1503040
    Truck Class:
    Heavy Duty
    Make:
    Kenworth
    Product Type:
    Interior
    $314.99
    Qty in Cart: 0
    Price:
    $314.99
    Subtotal:
  • Kenworth T600, T660, T800, W900 Stainless Replacement A/C-Heater Box and Blower Upgrade Package

    Kenworth T600, T660, T800, W900 Stainless Replacement A/C-Heater Box and Blower Upgrade Package

    SOARING EAGLE

    $1,172.99
    Kenworth Stainless Steel HVAC Box And Blower MotorUpgrade your Kenworth A/C and heating system with this stainless steel box and blower upgrade package. It includes a replacement box and blower made...
    02-1503037
    SKU:
    02-1503037
    Truck Class:
    Heavy Duty
    Make:
    Kenworth
    Product Type:
    Interior
    $1,172.99
    Qty in Cart: 0
    Price:
    $1,172.99
    Subtotal:
  • Kenworth T600, T660, T800, W900 Aluminum A/C-Heater Box & Blower Upgrade Package Replaces OE F31-1036-1 K1425351

    Kenworth T600, T660, T800, W900 Aluminum A/C-Heater Box & Blower Upgrade Package Replaces OE F31-1036-1 K1425351

    SOARING EAGLE

    $979.99
    Kenworth Aluminum HVAC Box And Blower MotorUpgrade your Kenworth with the Aluminum Box and Blower Upgrade Package. This replacement set comes with new fastening hardware, crafted from durable...
    02-1503033
    SKU:
    02-1503033
    Truck Class:
    Heavy Duty
    Make:
    Kenworth
    Material Options:
    Aluminum
    Product Type:
    Interior
    Ready To Ship:
    Yes
    $979.99
    Qty in Cart: 0
    Price:
    $979.99
    Subtotal:
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Stay Cool, Save Fuel: No Idle Solutions for Semi-Trucks

Stop burning fuel just to stay comfortable. With our no-idle solutions, you can power your sleeper cab, maintain climate control, and enjoy modern amenities—all without keeping your commercial truck engine running. Whether you're parked for a quick rest or overnight at a truck stop, our aftermarket no-idle systems let you stay efficient, compliant, and comfortable.

What Is a No-Idle System?

No-idle systems give your semi-truck the power to run heating, cooling, and basic electrical equipment without idling the engine. That means less fuel burned, fewer emissions, and more comfort in your sleeper. These systems are perfect for long-haul drivers, fleet operators, and anyone looking to cut operating costs and reduce wear on the engine.

Why Upgrade?

- Save Fuel: Eliminate wasteful overnight idling and extend your engine's lifespan. - Stay Comfortable: Keep your sleeper cool in the summer and warm in the winter—even when the engine’s off. - Improve Compliance: Stay within idle restriction laws in regulated areas. - Boost Functionality: Enjoy AC, power outlets, and lighting without running your engine.

Product Options

We carry Auxiliary Power Units (APUs), HVAC upgrades, no-idle air conditioning units, and model-specific packages for trucks like Peterbilt, Kenworth, and Freightliner. Whether you’re upgrading your heating and cooling system or installing a full APU setup, we’ve got the right parts to keep you running smart.

Get a No-Idle AC System Today

Explore our full lineup of no-idle air conditioning systems, maintenance kits, blower motors, air filters, coolant heaters, and cab comfort accessories today. Reduce idling. Drive smarter. Sleep better.

Frequently Asked Questions About No Idle

What is no idle equipment used for on a semi-truck?

No idle equipment refers to auxiliary power units (APUs), bunk heaters, battery-based climate control systems, and related components that allow drivers to heat, cool, or power the cab and sleeper without running the main diesel engine. These systems help maintain driver comfort during rest periods while reducing engine wear and fuel consumption associated with idling.

Will a no idle system work with my truck make and model?

Compatibility depends on the specific unit, your truck's electrical system, available mounting space, and in some cases your engine type. Before purchasing, check the product listing for compatibility notes and compare specs like voltage requirements and physical dimensions against your truck's setup. If you are unsure, reach out to our team with your truck's year, make, and model so we can help confirm fit.

How much fuel or battery power can a no idle system actually save?

Actual savings vary based on the type of system, outside temperature, how often the truck idles otherwise, and driving habits. Battery-based systems and APUs are generally installed to reduce or eliminate the need for engine idling during rest periods, which can lower fuel use and engine hours over time. We recommend reviewing manufacturer specifications for the specific unit you are considering, since exact performance numbers differ by product.

Do no idle systems require professional installation?

Many no idle products involve electrical connections, mounting to the frame or cab, and sometimes ductwork or refrigerant lines, depending on the system type. While some simpler units can be installed by an experienced DIYer with the right tools, we generally recommend professional installation to ensure proper wiring, secure mounting, and correct operation. Always follow the manufacturer's installation instructions included with your specific product.

Are no idle systems compliant with anti-idling laws and regulations?

Many states and municipalities have regulations limiting engine idling time, and no idle systems are often used specifically to help drivers comply with these rules while still maintaining cab comfort. However, regulations vary by location, so it is a good idea to check the specific idling laws in the areas you operate to confirm how a particular system fits your compliance needs.


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