Wild, I had no idea they had a kit for this, I ordered all of the hoses I needed individually, after hours poring over the KAI looking for every rubber hose I could find. Wish I had known about this lol...
 
Just wrapping up my hose replacement. I bought the five hoses that attach to the expansion tank from Lockwood, and sourced the lower ones separately, since they’re just straight hoses. I hope you went with the silicone hoses. This was a job I don’t EVER want to do again. Got 1” and 16 mm (5/8”) silicone heater hose off Amazon.

And don’t forget about the fuel-pump assembly hoses too. They’re 5-year life limited too. There’s a kit for that replacement.
 
Bob Y said:
Just wrapping up my hose replacement. I bought the five hoses that attach to the expansion tank from Lockwood, and sourced the lower ones separately, since they’re just straight hoses. I hope you went with the silicone hoses. This was a job I don’t EVER want to do again. Got 1” and 16 mm (5/8”) silicone heater hose off Amazon.

And don’t forget about the fuel-pump assembly hoses too. They’re 5-year life limited too. There’s a kit for that replacement.
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If you have teflon fuel hoses they are 'lifetime.'

Oil hoses are 10 year.
 
These are coolant hoses we’re talking about. Silicone are lifetime. Fuel-pump assembly hoses are still rubber so 5-year replacement. And we’re talking about the 12iS for the fuel-pump assembly hoses.
 
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