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Webasto Air Top EVO 40 – Gasoline Ford Transit Install Kit


This unique kit for Ford Transit vans includes:

  • Genuine Webasto Air Top EVO 40 gasoline heater.
  • The 3.0 version of the SmarTemp digital controller which has Bluetooth control and integrated remote temp sensor.
  • 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 Transit vans.
  • Note: many installers who are using the auxiliary fuel port located on the top of the Ford Transit fuel tank have reported that they have issues when the tank is less than 50% full. The aux pickup is designed to prevent auxiliary devices (such as heaters) from using too much fuel so that the ability to start/drive the vehicle is preserved. For this reason, some customers are installing the fuel standpipe that is included in the box with all the Webasto heaters we sell. This is a bit more work but provides more control over the length of the fuel pickup in the tank.
  • Full details in the description below.
  • $55 flat-rate ground shipping to the lower 48 states (P.O. boxes are an additional $50 since it must be delivered by USPS).
  • Typically ships in 1-3 days
SKU: Webasto 90-3-0020 Categories: , Tag:
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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.

We encourage you to watch our detailed Webasto heater installation and tips & tricks video.

If you're tempted to purchase your Webasto heater at a ridiculously low price from other online retailers, you should be aware that these are often European origin kits that are not compatible with all the North American parts and do not include some important parts. We have an extensive blog post about this here.

You may also be interested in our video comparing the Webasto Air Top 2000 to the EVO 40 heater.

For your safety we recommend that you install a carbon monoxide detector in your van anytime you have any fuel burning appliance like a Webasto heater or propane cooktop. They are widely available. We sell this combination CO2 and propane detector.

About the Fan
Webasto heaters have a variable speed fan that runs continuously when the heater is on. It runs very slowly when not heating and ramps up speed when heating. If you have a SmarTemp digital controller you can use a "fan only" mode.

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.

Webasto Air Top EVO 40 dimensions: 16.65" long x 5.82" wide x 6.37" tall.

  NOTE:  The color of the combustion air intake hose may vary between black or silver.  They are effectively equal and Webasto uses them interchangeably depending on what's in stock.


Installation Guide (PDF).

The Promaster/Sprinter EVO 40 Webasto Kit Includes

Base Webasto Air Top EVO 40 Gasoline Heater Includes

  • Heater unit
  • 3.0 version of the SmarTemp digital controller which has Bluetooth control and integrated remote temp sensor
  • 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

Unboxing Video of an EVO 40 (heater only - add-ons not shown in this video)

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

Check out this video comparing a Webasto heater running with and without this silencer.

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

Check out this video comparing a Webasto heater running with and without this silencer.

Fuel Line Tap Add-On

  • OEM grade Fuel Tank push lock connector for Ford Transit GASOLINE ONLY
  • 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

Additional information

Weight 592 oz
Dimensions 29 × 17 × 17 in