The 2004 Honda Odyssey takes a 24" drivers side, 21" passenger side and 17" rear. When buying windshield wiper blades be sure to always use the application guide book at the store or now-a-days you can Google 'lookup wiper size'.
You want to look this up because correct wiper fit is more than correct length, it's also proper attachement. Not all attachments fit all arms. Using the application guide or looking up wiper size online will avoid headaches of buying the right lengths with the wrong attachements.
The replacement wiper blades will come with step-by-step, illustrated instructions and once you have the instructions and the wiper blades/arms in your hands in front of you, it will all make better sense and will an easy maintenance task. Very simple and takes 5-15 minutes usually not requiring any tools.
If in your budget, upgrade to the newer-style frameless "beam blades" which perform better than conventional framed wipers. I use Trico NeoForm Beam Blades which are fantastic.
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The 2004 Honda Odyssey has a V6 engine.
The 2004 Honda Odyssey has 24 valves.
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The 2004 Honda Odyssey is a gas-powered vehicle.
The 2004 Honda Odyssey has a 5-speed automatic.
The 2004 Honda Odyssey has single overhead cam (SOHC).
The 2004 Honda Odyssey's turning circle is 37.7 ft..
The 2004 Honda Odyssey is 16 ft. 9.2 in. (201.2 in.) long.
The height of the 2004 Honda Odyssey is 5 ft. 8.5 in. (68.5 in.).
The curb weight of the 2004 Honda Odyssey is 4310 lbs..
The 2004 Honda Odyssey runs on regular unleaded.