Is this part genuine OEM or aftermarket?
What is the manufacturer's original part number?
Does the packaging carry the appliance manufacturer's branding/part number?
If they give you the brand + exact part number, I can check that part against the manufacturer's information and tell you whether it appears to be OEM, aftermarket, or an equivalent replacement.
If you want, send me the website link for Appliance Part Store of Canada that you're considering, and I'll investigate the company and its OEM claims more thoroughly.