£9.96
Eberspacher Espar Airtronic M2 B4L Gasoline Sprinter Promaster Heater Kit inc Easy Start PRO 4kW 12v
£1,295.40
Why Butler Technik
- Expert technical knowledge across Webasto, Espar, and Victron
- Fast, reliable parts sourcing and timely shipping
- Outstanding customer service and hands-on troubleshooting
About the product
The Eberspacher Airtronic M2 B4L is a 12 V gasoline air heater kit with modulated heat output from 1.3 to 4 kW. It has built-in automatic altitude compensation and can operate at altitudes up to 4,000 m (13,123 ft).
The kit includes an Easy Start Pro timer and temperature controller, with 7-day programmable timing, instant heat mode, vent mode and digital fault code readout. A dedicated fuel pick-up kit is included for Mercedes Sprinter, Freightliner Sprinter and Ram Promaster applications.
Included components are the heater, 2 m of 90 mm ducting and one outlet; digitally switched dosing pump and holder; 24 mm exhaust silencer and fixing clamps; intake air pipe and end cap; wiring harnesses, connections and fuses; fuel pipe, connectors and in-line filter; 1 m stainless steel exhaust flex pipe; 1 m combustion air pipe; and Eberspacher documentation. The Mount PRO package includes a 30 mm-deep stainless steel turreted floor plate and fixing nuts. The plate measures 185 mm × 165 mm and has a 127 mm × 30 mm circular flange on its lower side.
At a glance
- Modulated heat output from 1.3 to 4 kW
- Automatic altitude compensation; operates up to 4,000 m
- Easy Start Pro 7-day programmable timer and temperature controller
- Includes a dedicated Sprinter and Promaster fuel kit
- Mount PRO stainless steel floor plate is 30 mm deep
Specifications9
- Material
- stainless steel
- Dimensions
- Mount plate: 185 mm × 165 mm; 30 mm deep
- Compatible with
- Mercedes Sprinter, Freightliner Sprinter and Ram Promaster
- In the box
- Heater, Easy Start Pro timer and temperature controller, ducting and outlet, vehicle fuel kit, fuel pump and holder, exhaust silencer and pipes, intake pipe and end cap, wiring, connections, fuses, fuel pipe, connectors and filter, documentation, Mount PRO floor plate and fixing nuts
- Heat output
- Modulated 1.3–4 kW; 4 kW maximum
- Voltage
- 12 V
- Operating altitude
- Up to 4,000 m (13,123 ft)
- Timer and controller
- Easy Start Pro with 7-day programmable timing, instant heat mode, vent mode and digital fault code readout
- Mount plate flange
- 127 mm diameter × 30 mm
Price history
Price at the shop, last 80 days
The price has stayed at £1,295.40 since 19 August.



