The Toyotomi 20479957 is a genuine Nut J for Laser 60AT, Laser 730, Laser 730AT, Laser 731, Laser 732. Genuine nut used at the blower motor case on these models.
This is an OEM Toyotomi part, so it fits and performs the way the original did. Confirm your heater model before ordering; the model is on the rating label on the unit. If you are not sure which part you need, Rural Energy support can check it against your model and serial number.
Rural Energy is a Toyotomi distributor and keeps Toyostove Laser and Oil Miser heater parts in stock for fast shipping to dealers and homeowners.