HC3800 Mitsubishi color wheel model or part number?

The Mitsubishi HC3800 projector uses a color wheel with the model number VLT-HC3800LP. This is the original color wheel that is designed specifically for the HC3800 projector, and it should be able to replace the existing color wheel in your projector. It is important to use the correct color wheel for your projector to ensure optimal performance and avoid any damage to the projector.
You can purchase the VLT-HC3800LP color wheel from Mitsubishi authorized resellers or from the Mitsubishi website. You can also check for other electronic resellers or online marketplaces for availability and pricing. I recommend you to confirm with the seller that the part is compatible with your specific projector model and serial number, before making the purchase.
It's also important to mention that, replacing the color wheel should solve the noise issue you're experiencing. But, it's always recommended to check the projector warranty status, or if the projector is out of warranty, consult with a professional technician before attempting to replace any part of the projector.