Availability of Plug and Play Wiring Harness for Tekonsha Primus IQ Installation in 2025 Thor E-350
Updated 09/12/2025 | Published 05/17/2025
Question:
I am looking to install the Tekonsha Primus IQ Trailer Brake Controller in my 2025 Thor E350. Which Plug and Play cable do I need. Your site tells me this is the wrong one. Tekonsha Plug-In Wiring Adapter for Electric Brake Controllers - Ford 3034P
asked by: Scott
Expert Reply:
Hi Scott; the newer model Ford vehicles use the # 22292 (3036-P now 303600) wiring harness for brake controller installation. We don't have confirmation of fitment on a 2025 E-350 motorhome but we do know it fits their other 2025 models. Take a look at the connector in your motorhome and see if it matches the connector on the wiring harness. Assuming it does, you can use this to install the # TK90160.
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Robin H.
9/12/2025
Hi Scott, did you have a chance to check if the connector in your Thor E350 matches the one on the Tekonsha wiring harness? If you’re still looking for a solution, I’m happy to help.