I have a Webasto Air Top 3500 from 2008. I need to replace the burner cartidge. i have found this product on your wesite: Webasto Air Top 3500 or AirTop 5000 Burner Cartridge | 67955A. I have seen in the manual that thereis a burner cartridge with and without shield. How can i find out which one to order.

The Webasto Air Top 3500 or AirTop 5000 Burner Cartridge | 67955A is fitted to ALL Webasto 3500 heaters and is generally the item you require if you are wishing to service your heater, specifically if the heater is beginning to emit smoke /diesel fumes from the exhaust. It's also possible to purchase the burner tube as an individual item if required - search 97566a

Also often purchased from our website is the complete burner overhaul kit that will include glow pin / gaskets etc - see image

We would need to learn the voltage of your heater 12v or 24v to provide part number because these full repair kits include voltage specific glow pin