20.2827.21.0201 – Eberspächer Airtronic S3 D2L 12V Diesel Air Heater Install Kit with EasyStart Pro

Description

When overnight temperatures drop, dependable heat matters. The Eberspächer Airtronic S2 D2L delivers clean, dry diesel-fired heat without engine idling. As a result, it helps reduce fuel consumption, engine wear, and unnecessary emissions.

This 12-volt diesel air heater produces up to 2.2 kW (approximately 7,500 BTU) of steady heat. It is designed for sleeper cabs, day cabs, and off-engine heating applications. Because the heater uses stepless heat control, it maintains consistent comfort rather than cycling on and off.

In addition, this install kit includes the EasyStart Pro controller, which provides advanced diagnostics, programmable operation, and precise temperature control. The included universal fuel pickup supports both drilled-tank and existing NPT port installations, improving fitment flexibility across multiple truck platforms.

For nights when heat is not required, the Airtronic S2 also offers a fan-only ventilation mode, allowing air circulation without combustion.

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Key Features & Benefits

• Produces up to 7,500 BTU (2.2 kW) of diesel-fired heat

• Reduces engine idling and fuel usage

• Maintains consistent cab and bunk temperatures

• Stepless heat control for smooth operation

• Fan-only ventilation mode for air circulation

• EPA Verified for use throughout the United States

• Complete install kit minimizes additional parts sourcing

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What’s Included

This complete installation kit includes:

• Airtronic S2 D2L diesel air heater

• Wiring harness

• EasyStart Pro controller

• Fuel metering pump

• Universal fuel pickup pipe

• Fuel line and clamps

• Mounting bracket and hardware

• Exhaust pipe, clamps, and brackets

• Combustion air intake pipe

• Installation manuals

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Technical Specifications

Heater Model: Airtronic S2 D2L
Voltage: 12V
Fuel Type: Diesel
Heating Medium: Air
Maximum Heat Output: 2.2 kW (≈ 7,500 BTU)
Fuel Consumption: Approximately 0.10 – 0.28 L/hr
Electrical Power Consumption (Operation): 4 – 31 W
Electrical Power Consumption (Start): ≤ 100 W
Air Flow (75 mm ducting): Up to 105 kg/hr
Control Type: Stepless heat control
Ventilation Mode: Yes
Compliance: EPA Verified

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Applications

• Heavy-duty truck sleeper cabs

• Day cabs requiring auxiliary heat

• Vans and light commercial vehicles

• Construction and agricultural equipment

• Off-engine heating applications

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Installation Notes

• Designed for 12V diesel systems

• Universal fuel pickup supports multiple tank configurations

• Professional installation is recommended

• Additional ducting or accessories may be required depending on vehicle layout

Eberspächer Catalog 2023