Genuine Napoleon Replacement Part # W290-0119 Ignition Gasket - Goes between the igniter housing and the stove Fits Napoleon Pellet Stoves: NPI40, NPI40-1, NPI45, NPS40, NPS40-1, NPS45 Fits Timberwolf Pellet Stoves: TPS35, TPI35 Replacement pellet stove ignitor gasket for Napoleon and Timberwolf Pellet Stoves and Inserts. Also called an ignition gasket. This is the gasket that goes between the igniter housing and the stove. Fits the following models: Napoleon Pellet Stoves: NPI40 NPI40-1 NPI45 NPS40 NPS40-1 NPS45 Timberwolf Pellet Stoves: TPS35 TPI35 Part # W290-0119 OEM Napoleon Part