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Radiator cap HD-5
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Joined: 28 Sep 2024
Location: Ada Mn
Points: 19 		Post Options Post Options   Thanks (0) Thanks(0)   Quote BFC Quote  Post ReplyReply Direct Link To This Post Topic: Radiator cap HD-5
    Posted: 01 Jul 2025 at 6:20pm
Looking for a radiator cap for a HD-5.
Thank You in advance.
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Joined: 12 Sep 2009
Location: Afton MN
Points: 42023 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Coke-in-MN Quote  Post ReplyReply Direct Link To This Post Posted: 04 Jul 2025 at 12:45pm
See if you can find a old gas cap to fit as the system is not pressurized and just a cap to cover opening . 
 Don't think i have a spare around now as sold the spare radiators i did have . 
Life lesson: If you’re being chased by a lion, you’re on a horse, to the left of you is a giraffe and on the right is a unicorn, what do you do? You stop drinking and get off the carousel.
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Joined: 12 Sep 2009
Points: 1857 		Post Options Post Options   Thanks (0) Thanks(0)   Quote orangeman Quote  Post ReplyReply Direct Link To This Post Posted: 07 Jul 2025 at 10:33am
If the HD-5 uses that same radiator as the HD6, then the cap is available from NAPA.  ~  Orangeman
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Joined: 28 Sep 2024
Location: Ada Mn
Points: 19 		Post Options Post Options   Thanks (0) Thanks(0)   Quote BFC Quote  Post ReplyReply Direct Link To This Post Posted: 18 Jul 2025 at 8:02am
I would like to thank everyone for their suggestions on HD 5 radiator cap.
I did locate a fuel cap that did fit the radiator.  1950 50 John Deere work fine.
But thanks everyone for your suggestions.

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