Replacement natural gas (NG) pilot assembly for Hearth & Home gas stoves and fireplaces. IPI pilot assembly, does not work with DSI, HSI or standing pilot units. Original HHT Parts. No Generics. Fits the following HHT gas fireplace models: Quadra-Fire Gas Fireplaces: QV-PIER-HV-IPI QV-ST-HV-IPI Heatilator Gas Fireplaces: BCBR36 - Pre 14/03 GGBR60E & GGBR60LE - Pre 33/02 GGBR60I & GGBR60IL - Pre 12/03 GGBR80E & GGBR80LE - Pre 33/02 IB75 - Pre 36/02 TITAN FI36M & FI36ML FI42M & FI42ML STIO-TWILIGHT TWILIGHT Heat N Glo Gas Fireplaces: GATEWAY LCOR-HVB-IPI LCOR-HV-IPI L-COR-IPI PASSAGE PIER-HVB-IPI PIER-HV-IPI PIER-PV-IPI PIER-TRC-IPI PIER-TVFL-IPI RCOR-HVB-IPI RCOR-HV-IPI R-COR-TRC-IPI ST-42TVFL-IPI ST-HVB-IPI ST-HV-IPI ST-PV-IPI ST-TRC-IPI 6000TRI-IPI - Pre serial # 002324002 6000TR-OAK-IPI - Pre serial # 002324002 6000TV-OAK-IPI - Pre serial # 002324021 6100PLUS 8000TRD-IPI - Pre serial # 002324001 8000TVD-IPI - Pre serial # 002324001 BE-41B-IPI CFX-CRESCENT - After serial # 002182991 CFX-DA ESCAPE-36DV - Pre serial # 002868727 INFINITY OLYMPUS BE-36-CIPI - Pre serial # 0021076020 SL-550TR-IPI-C SL-550TR-IPI-D - Pre serial # 0021076055 SL-550TV-IPI-C SL-550TV-IPI-D - Pre serial # 0021076055 SL-750TR-IPI-C SL-750TR-IPI-D - Pre serial # 0021076885 SL-750TV-IPI-C SL-750TV-IPI-D - Pre serial # 0021076055 SL-950TR-IPI-C SL-950TR-IPI-D - Pre serial # 0021076046 SL-950TV-IPI-C SL-950TV-IPI-D - Pre serial # 0021076046 Heat N Glo part # 4021-730 Replaces old part number 385-510A OEM HHT part.