Espar AM3-D4L - RV VAN - Diesel

Built for RV van owners who need reliable heat on the road — the Espar Airtronic AM3-D4L is a commercial-grade diesel air heater engineered to perform in the real world, season after season.

With a 5,000-hour brushless motor, built-in altitude compensation up to 18,000 ft, EasyStart Pro Controller, Muffler Kit, and a complete installation kit included, this is the heater serious RV builders and overlanders reach for.

Why the AM3-D4L?

• 4 kW output — powerful enough to heat a full-size RV van or camper in sub-zero temps
• 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
• Muffler Kit included — quieter exhaust, no extra purchase needed
• Automotive Style Fuel Pick-Up Tube 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
• Vehicle Fit: RV Van
• Part Number: 20.2829.55.0402

What's Included

• Eberspaecher Airtronic AM3-D4L 12V Heater
• Fuel Metering Pump
• EasyStart Pro Controller
• Muffler Kit
• Fuel Line & Clamps
• Fuel Pick-Up Pipe (Automotive Style)
• 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

• RV vans and camper conversions
• Overlanding and van life builds
• Cargo vans and commercial vehicles
• Mobile workshops and tool trucks

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.