Espar AM3-D4L Commercial Truck Kit

Built for commercial truck operators who need serious, reliable heat — the Espar Airtronic AM3-D4L Commercial Truck Kit is a genuine Eberspaecher North American kit, spec'd for sleeper cabs, insulated box trucks, tool trucks and large commercial vehicles.

With a North American wire harness, 5,000-hour brushless motor, built-in altitude compensation up to 18,000 ft, and EasyStart Pro Controller included, this is the kit fleet operators and professional installers specify.

⚠️ Muffler not included. Add separately if quieter exhaust is required.

Why the AM3-D4L?

• 4 kW output — powerful enough to heat large sleeper cabs, box trucks, and motor homes in sub-zero temps
• Genuine North American kit — includes North American wire harness for direct fitment
• Brushless motor — extended 5,000-hour service life and noticeably quieter operation than previous generations
• Built-in altitude adjustment — works up to 5,500m / 18,000 ft with no additional module required
• Runs on diesel — draws directly from your vehicle's existing fuel tank
• EasyStart Pro Controller included — timer-based scheduling right out of the box
• Vent Style Fuel Pick-Up included
• 2-year / 2,000-hour warranty — backed by Eberspaecher's manufacturer warranty

Specs

• Fuel Type: Diesel
• Voltage: 12V
• Max Heat Output: 4 kW
• Altitude Rating: Up to 5,500m / 18,000 ft (built-in)
• Warranty: 2 years / 2,000 hours
• Wire Harness: North American
• Part Number: 20.2829.55.0402

What's Included

• Eberspaecher Airtronic AM3-D4L 12V Heater
• Fuel Metering Pump
• EasyStart Pro Controller
• Fuel Pick-Up Pipe (Vent Style)
• Fuel Line & Clamps
• North American Wire Harnesses
• Stainless Steel Exhaust Pipe
• Combustion Intake Pipe
• Flexible Ducting — 0.5 meter
• Outlet Grill
• Air Outlet Hood (90mm straight)
• Screws, Clips, and Plastic Straps
• Installation Manual
• Warranty Documentation

Ideal For

• Commercial sleeper cabs and semi trucks
• Insulated box trucks and cargo vehicles
• Motor homes and large RVs
• Fleet vehicles and professional installations

Questions about fitment or installation? We're here to help — reach out before you order and we'll make sure you get the right kit for your build.