Which Kat's Heater Fits 2008 Toyota Highlander V6
Updated 05/20/2026 | Published 05/17/2026 >
Question:
I bought this kh11813 heater and it doesn’t fit my 2008 Highlander limited v6. Did I buy the wrong one? Is this only for the four cylinder?
asked by: Matthew G
Expert Reply:
Hey Matthew, the Kat's heater you have part # KH11813 is the correct listing for your 2008 Toyota Highlander with a V6. Is there a chance you attempted to install it in the wrong cartridge hole?

Rich W.
5/20/2026
I doubt there's a difference. Is the hole clean? In my Tacoma, I had to scrape it a little to make sure it's clean, it's a tight fit for better heat transfer


Product Page this Question was Asked From
Kat's Heaters Custom Fit Engine Block Heater - Cartridge Style - 120V - 400 Watts
- Vehicle Heaters
- Engine Block Heater
- Cartridge Style
- 400 Watts
- Kats Heaters
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Matthew G.
5/20/2026
I attempted to put the element in the correct port per your videos and ones I found on the internet. Maybe there is variation from domestic built to Japan built vehicles. Just a thought. Also the element is oval and the port is circular, so that could be an issue too.