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Eberspächer Airtronic M3 D4L

Eberspächer Airtronic M3 D4L

Eberspächer Espar Airtronic M3 D4L (Diesel) 12V Heater Kit Upgraded Version of The M2 D4L

A 12V split diesel air heater that modulates from 1.1 to 4.0 kW (13648 BTU/h) and burns 0.12 to 0.49 L/h. It adjusts automatically for altitude up to 18045 ft (5500 m), works down to -40 ℃, has a brushless motor and carries ECE R122 and R10 approval. Priced far above the budget 8 kW units, it suits permanent installs in vans, trucks and trailers that need certified heat.

$1,675.00 as of – Details

Only 10 left in stock - order soon on Amazon

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Max heat output
4.0 kW
Min heat output
1.1 kW
Max heat output (BTU/h)
13,648 BTU/h
Fuel consumption min
0.12 L/h

Rankings in the diesel heaters Category

How does this product compare with others in Nomad Gear Finder's diesel heaters category?

  • Max heat output 4.0 kW Lower than 79% of 72 others
  • Weight 9.92 lbs 4.50 kg Lower than 86% of 38 others
  • Length 14.80 in. 376 mm Lower than 77% of 40 others
  • Width 5.51 in. 140 mm Lower than 80% of 40 others
  • Depth/Height 5.91 in. 150 mm Lower than 82% of 40 others
  • Max operating altitude 18,045 ft Higher than 80% of 45 others

Compare this product with close matches Compare with all diesel heaters

Videos for this product

We searched YouTube for reviews, installation guides, and manufacturer videos for Eberspächer Airtronic M3 D4L. Note that many product videos are sponsored by manufacturers, so keep in mind that some reviews may be biased in favor of the product. Negative videos are less likely to get made and posted.

Installation Eberspacher / Airtronics M3 D4L diesel heater installation in our Hewescraft 210 Sea Runner · Lost And Found SAR A step-by-step installation of an Airtronic M3 D4L, covering parts, routing and testing.
From the manufacturer Airtronic 3 by Eberspächer – the newest generation of air heaters · Eberspächer Worldwide Eberspächer explains how the third-generation Airtronic air heaters work and how they are controlled, with a van example.

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Specifications

These details are subject to change and may not be current. Please check Amazon or manufacturer web site to confirm before purchase; see our About page for more information.

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Model
Airtronic M3 D4L
Manufacturer page
Link
User manual
Link
Popular brand
Yes

Core specs

Heater type
Split
Max heat output
4.0 kW
Min heat output
1.1 kW
Max heat output (BTU/h)
13,648 BTU/h

Fuel

Fuel consumption min
0.12 L/h
Fuel consumption max
0.129 gal/h 0.49 L/h

Power

DC input voltage
12V
Startup power draw
105 W
Running power draw
37 W

Physical Attributes

Brushless motor
Yes
IP rating
IP5K4K
Weight
9.92 lbs 4.50 kg
Length
14.80 in. 376 mm
Width
5.51 in. 140 mm
Depth/Height
5.91 in. 150 mm

Altitude

Max operating altitude
18,045 ft
Max operating altitude (m)
5,500 m
Altitude adjustment
Automatic

Operating Temp Range

Operating temp min
-40 ℉ -40 ℃

Safety

Overheat protection
Yes
Low-voltage protection
Yes

Warranty & Certification

ECE R122 approved
Yes
ECE R10 (E-mark) EMC
Yes

Features

Details from the Eberspächer Airtronic M3 D4L Amazon listing:

  • Perfect For all types of applications Truck Sleepers Campervans Cargo trailers

Similar products from other brands

Chosen for their similar specs and price:

Similar products from other brands
This productEberspächer Airtronic M3 D4L Webasto Air Top EVO 40 VEVOR XMZ-D2 Longroadaccess Air 4D
Price $1,675.00 $1,945.95 $119.90 $1,299.99
Model Airtronic M3 D4L Air Top EVO 40 XMZ-D2 Air 4D
Popular brand Yes Yes Yes No
Heater type Split Split – Split
Max heat output kW 4.0 4.0 8.0 4.0
Min heat output kW 1.1 1.5 – 1.0
Max heat output (BTU/h) BTU/h 13,648 13,650 27,296 13,648
Heating area m² – – 25 –
Heating area sq ft – – 269 –
Air flow m³/h – 140 – 168
Fuel tank capacity L – – 10.0 –
Fuel tank capacity gal – – 2.6 –
Fuel consumption min L/h 0.12 0.18 0.16 0.12
Fuel consumption max L/h 0.49 0.49 0.62 0.51
Fuel consumption max gal/h 0.129 0.130 0.164 0.136
Max runtime per tank hours – – 16 –
Heat levels levels – – 10 –
Thermostat mode – – Yes Yes
Thermostat min ℉ – – 46 –
Thermostat max ℉ – – 97 –
Thermostat min ℃ – – 8 –
Thermostat max ℃ – – 36 –
Timer – – Yes –
Remote control included – – Yes –
Remote range ft – – 98 –
App connectivity – – Bluetooth –
DC input voltage 12V 12V / 24V 12V 12V
Startup power draw W 105 – – –
Running power draw W 37 55 40 57
Noise level dB – – 70 –
Air duct diameter mm – – 77 –
Brushless motor Yes – – –
IP rating IP5K4K – – –
Weight lbs 9.92 13.00 13.60 11.90
Weight kg 4.50 5.90 6.15 5.40
Length in. 14.80 16.70 14.80 15.83
Length mm 376 423 375 402
Width in. 5.51 5.80 5.50 6.18
Width mm 140 148 140 157
Depth/Height in. 5.91 6.40 6.90 7.40
Depth/Height mm 150 162 175 188
Max operating altitude ft 18,045 18,044 18,045 8,202
Max operating altitude (m) m 5,500 5,500 5,500 2,500
Altitude adjustment Automatic Automatic Automatic –
Operating temp min ℃ -40 -40 -40 -45
Operating temp min ℉ -40 -40 -40 -49
Overheat protection Yes – Yes Yes
Low-voltage protection Yes – Yes Yes
Warranty – – – 2 Years
Certifications summary – – FCC Part 15 statement –
FCC Part 15 compliant – – Yes –
ECE R122 approved Yes Yes – Yes
ECE R10 (E-mark) EMC Yes Yes – Yes

Data sources

Data for this product compiled from these sources:

Prices from Amazon as of . Product prices and availability are accurate as of the date and time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply to the purchase of the product. As an Amazon Associate I earn from qualifying purchases.

Specifications last updated Nov 5, 2026.