Shelter in Place Order: Illinois

Until the Shelter In Place order for Illinois is lifted, the Woodridge Product Support Center will be prioritizing shipments to support critical orders. For critical orders, please select FedEx - Priority Overnight as the shipping method and create a Tools case file that includes the order number and VIN. In most cases, critical orders will be shipped the following business day. All other orders will be shipped as resources allow.

Canadian Retail Sales

The Navistar Product Support Center has temporarily disabled retail catalog sales in Canada. Please contact a local International® dealership to purchase tools or software. International® dealerships can be located using the tool at

We apologize for the inconvenience.

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Kit, Diagnostic
Product Number 1320920A
The Webasto Diagnostic Kit is used to ensure correct heater fault diagnosis. The kit includes: Heater to PC interface unit, Serial adapter cable, USB adapter cable.

Please note: Depending on the Heater being diagnosed, this tool will need to be combined with a particular adapter cable specific to the Series Heater being serviced. Diagnostic Cable's are sold separately based on Heater Model. See Associated Products listed below for Diagnostic Adapter Cables.
Only 4 left in stock - order now!

Applicable to:
Heavy Duty , LoneStar , ProStar , Electronic Engine Components , 08 Electrical , 19 HVAC
Product and price information are subject to change without notice.