Webasto Air Top EVO 40 – Gasoline Sprinter/Promaster Install Kit


This unique kit for Mercedes Sprinter or RAM Promaster vans includes:

  • Genuine Webasto Air Top EVO 40 gasoline heater.
  • 4 kW / 13,650 BTU heating capacity.
  • Air intake noise suppression add-on.
  • Combustion air noise suppression add-on.
  • Fuel line tap add-on for Sprinters or Promasters.
  • Full details in the description below.
  • $05 flat-rate ground shipping in the USA (P.O. boxes are an additional $50 since it must be delivered by USPS).
  • We’re waiting on some silencing kit parts to arrive from Germany to complete these kits. We expect to have the complete kits ready in early May 2021. In the meantime, we have the EVO 40 heater (without the add-ons) in stock.

Available on backorder

SKU: 90-3-0012 Category: Tag:


We Fully Support DIY Installations
Unlike many authorized Webasto distributors, Vanlife Outfitters fully supports DIY installers. Our entire team has been trained to become Webasto certified "experts". Together with our distribution partner, we maintain a wide range products and replacement parts in-stock. If you experience a problem with your Webasto unit within the warranty period, we will work with you to determine the cause of failure and will either attempt to give instruction on how to correct any faulty workmanship or supply a replacement part. If a replacement part is needed we will send you the part immediately from their stock at no charge so that you can get up and running as quickly as possible. Of course, we rely on you to return any faulty parts in order to be reimbursed for the warranty repair.

Please check out our blog post about Webasto heaters, how to install them and why you should seriously consider buying them from us (or another North American distributor) instead of the amazingly cheap units from Russia!

This kit comes with a genuine Webasto Air Top EVO 40 gasoline powered air heater and three unique “add-ons” for a complete installation in a camper van!

The heater has an output range of 5118 BTU to 13650 BTU (1.5 kilowatt – 4 kilowatt) and can provide heat for up to 14 hours on just 1 gallon of fuel! Fuel consumption is rated between .07 to .15 gallons per hour.

Unlike the smaller Air Top 2000 STC model, this EVO 40 heater is capable of running extensively at high altitude up to 7,200 feet with automatic altitude adjustment.

You’ll have peace of mind with a Webasto-backed two years or 2000 operation hours warranty.

Installation Guide (PDF).

The Promaster/Sprinter EVO 40 Webasto Kit Includes

Base Webasto Air Top EVO 40 Gasoline Heater Includes

  • Heater unit
  • SmarTemp digital controller (with remote temp sensor built-in)
  • Universal medium-duty fuel tank standpipe
  • Fuel pump with wiring harness
  • Fuel line with required fittings and fuel filter
  • Mounting plate with foam gasket and bolts
  • Wiring harness
  • 1.2 meter (3.9 feet) flexible stainless steel exhaust hose (24mm)
  • 1 meter (3.2 feet) aluminum combustion air intake hose (24mm)
  • 1.5 meters (4.9 feet) of 90mm “primary” ducting
  • 1 meter (3.2 feet) of 60mm “branch” ducting
  • Adapter Y for ducting (90mm to 60mm)
  • 1x 90mm and 1x 60mm louver/vent
  • Installation/operation manual

Air Intake Noise Suppression Add-On

  • 25mm air intake silencer
  • 1 meter of additional 25mm air intake hose
  • Silencer mounting clamp
  • Straight mounting hanger
  • Angled mounting hanger
  • Tubing mounting clamp

Combustion Air Noise Suppression Add-On

  • 24mm exhaust muffler
  • Stainless steel muffler clamps
  • 1 meter of additional stainless steel exhaust hose
  • Stainless steel mounting clips
  • Straight mounting hangers
  • Angled mounting hangers

Fuel Line Tap Add-On

  • Genuine Webasto push lock fuel tank adapter for Promaster or Sprinter vans that allows you to easily tap into the auxiliary fuel ports built into the vehicle.
  • Elbow adapter to connect the barbed end of the push lock to the standard size Webasto fuel line supplied in the heater kit
  • Clamps to secure both ends of the elbow with a few spares included