Pilot assembly for Heatilator fireplace. Extra long 4" ceramic electrode sparker Comes with thermocouple, thermopile, electrode, and pilot tubing Old Part Number - 25660 New Part Number - 4021-732 NATURAL GAS 24" Long FIT MODELS GCBC60L GCBC42L GNBR36, GNBR36L GNDC30, GNDC30L S.I.T GNDH30, GNDH30L S.I.T GNDH33, GNDH33L, S.I.T GNDH36, GNDH36L S.I.T GNDR30, GNDR30L GNDR33, GNDR33L GNDR36, GNDR36L GNRC33, GNRC33L S.I.T GNRC36, GNRC36L S.I.T GNRH33, GNRH33L, S.I.T GNRH36, GNRH36L S.I.T GNTC50, GNTC50B GNTC80, GNTC80B GDCH60V, GDCH60LV GDCL36, GDCL36L GDCR36, GDCR36L GDST36, GDST36L GGBR60, GGBR60L GGBR80, GGBR80L GNBC33, GNBC33L S.I.T GNBR30, GNBR30L GNBR33, GNBR33L GNDC30 GDFL60 GC150L GB4336 G141 CD4842R CD4842LR CD4236R CD4842ILR CD4236LR CD4236R Models GDCL60L GDCL60 GDCR60L GDCR60 GDST60LV GCBC42 GCBC36L GCBC36 CGC150L CGC150 GC150 GB4942 GB4336L G270LM G270M G141L GCBC80 Models NANOV GNDC36 GDST60V GDST60 GDFL60V GDFL36 Models GDCR60 Models GDCL60 Models GDCH60 GCDC80 Models GCDC60 Models GCDC42 Models GCDC36 Models GCBC42 Models GCBC36 Models GC150 Models GBST36 GBIS36 Models GBFL36 Models GBCR36 GBCL36 GB4942 Models GB4336 Models G270M Models G141 Models CGC150 Models CD4842R Models CD4842MR Models GNDR36 E GNDR30 E GNBR36 E GCDC80E Models GNTC50 Models GB4942L GNDC33 GNBC36 GDFL36 GDCH36 GCDC80 GCDC60 GCDC42 GCDC36 GCBC80 GCBC60 GC150 E GBiS36 GBFL36 GDCH36 Models GBCL/CR/FL/ST 36 Models GB4336/GB4942 Models NOVi35 ADVR3428 CFL-30-B ODY42 ODY42L GBi25L GBi25