ECHO XL3-D8L

ECHO Cargo Heater Assembly — The Advanced Heating Solution for Temperature-Sensitive Cargo

The ECHO Cargo Heater Assembly delivers powerful, engine-independent heat to keep cargo at stable temperatures in every season. Built around the next-generation Ax3 Airtronic heater, it provides fast, even airflow throughout the cargo bay — while the upgraded brushless blower motor and 100,000-cycle ignitor ensure reliable, low-maintenance performance for Class 4–7 trucks.

Protect sensitive goods from frost damage, eliminate dependence on engine heat, and reduce wear on your vehicle's coolant system — all in a preassembled, plug-and-play system that cuts field installation time significantly.

What's Included

• Eberspaecher AXL3-D8L Airtronic Heater 8 kW
• EPRO Controller with advanced diagnostics & communication
• Brushless Blower Motor
• 100,000-Cycle Ignitor & Long-Life Burner Chamber
• Powder-Coated Aluminum Enclosure (UL-approved)
• Plug-and-Play Wiring Harness
• Dual Power Converter & Battery Charger (FLA, AGM, LiFePO4)
• Emergency Stop Mechanism
• Fresh Air Ducting with return air duct connections
• Universal Mounting System
• Shore Power Option — operate the heater on AC shore power when the vehicle is parked or connected to grid power

15 New & Improved Features

• Next-Generation AXL3-D8L Heater & FMP — unmatched performance and reliability
• EPRO Controller — enhanced diagnostics, communication, and ease of use
• Simplified Diagnostics — diagnostic lead connects directly to the HMI box
• Dual Heater Capability — run two heaters simultaneously for large bays or extreme cold
• Automatic Altitude Compensation — consistent output at elevation
• All-Weather UL-Approved Enclosure — protects the HMI in any climate
• Plug-and-Play Harness — reduced installation complexity
• Shared Rugged Housing — ECHO 6 & 8 share a durable enclosure design
• Upgraded Power Converter — efficient power management
• Multi-Chemistry Battery Charging — FLA, AGM, and LiFePO4 support (ECHO 8)
• DC-DC Power Conversion — run 24V heaters on 12V battery systems (ECHO 8)
• Shore Power Option — run on AC grid power when parked, reducing battery draw and fuel consumption
• Fresh Air Circulation — return air duct connections for livestock or odor-sensitive cargo
• Emergency Stop — rapid heater shutdown via FMP wire safety mechanism
• Universal Heater Compatibility — streamlined mounting for 2 kW–8 kW heaters
• Preassembled System — significant labor savings right out of the box

Why the ECHO Assembly?

Whether you're retrofitting an existing vehicle or outfitting a new fleet, the ECHO Assembly adapts to your operation. From dual-heater capability and fresh air circulation to automatic altitude compensation, shore power support, and multi-chemistry battery charging — this is cargo heating engineered for the demands of professional fleets.

Download the ECHO Assembly Data Sheet (PDF)