"OEM" or Original Equipment Manufacturer are parts that the stove manufacturer makes themselves or outsources from other suppliers for their specific stove models. When you order replacement parts for your pellet stove directly from a manufacturer or it’s retailers you can be certain that these parts will be “OEM”.
"AMP" is an acronym that stands for After Market Parts. This is equipment that is sourced out directly which cuts out the stove manufacturers hefty markup. AMP equipment works exactly the same as its OEM counterpart, especially when you’re looking at blowers, igniters, fire backs, switches, gaskets and controls, as quite often, they are made by the same exact manufacturer that supplied the OEM parts as you will see with many “Fasco” blowers and “Gleason Avery” auger motors.
Here at Stove Parts 4 Less we like to offer you the choice of the OEM and the AMP version of products whenever possible to save you money. In some cases we like to offer multiple versions of the AMP part where they are made by the same manufacturer as the original or an alternative version at an even lower price. Click here for more on Explaining the difference between OEM and AMP parts for your pellet stove.