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2010 ARCTIC CAT 550 H1 EFI
Delete this machine from profileSelect this machineCooling fan motors, hose kits, radiator screens and coolant recovery tanks – Rocky Mountain ATV/MC has all the UTV cooling system parts you need at the best prices and fastest shipping around. We have OEM side by side parts for your Kawasaki and Yamaha as well as after-market parts for all the major UTV’s. Plus, we’ve taken the guess work out of finding the UTV cooling parts to fit your machine with our online “Parts Finder” search. If you’re looking for a quality cooling fan motor, the Arrowhead Cooling Fan Motor was made to OEM specifications and comes completely assembled and ready to mount. If you need a new cooling system hose kit, our CV4 Hose Kit is made of pure silicone, withstanding temperatures up to 420 degrees. We also have a huge selection of UTV coolants, antifreeze and radiator additives to keep your Polaris RZR cool and running in prime condition. Rocky Mountain ATV/MC is your trusted source for quality UTV cooling system parts.

Robert in ID
Ran this on my 2015 crf250r, every little bit of cooling helps.
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Johnathon in MT
I bought this cap to replace the stock one on my '01 YZ426F. It fits/ seals well and the higher psi will be nice to help keep the bike from boiling over in hot weather/ slow riding conditions
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Tim in IN
fit great on my Triumph TF450RC. Nice product, keeps the bike cool in the woods.
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David in ID
Pump on old bike failed this is a perfect fit and replacement. No issues and easy to install
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Gene in TX
Instead of using this radiator cap I exchanged it for one with a temp gauge on it.
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PAUL in AZ
Exact fit for my machine and was simple install with plug and play electrical connection. 4 bolts to hold the unit in place. It was quiet when it was on and has done a great job cooling radiator to this point. Now it's a matter of hours being placed on the machine to see how the new fan assembly hold up to the vigorous stress of extreme duties of keeping radiator cool and preventing overheating issues
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