Pilot Assembly – Propane (4021-733 / 25661 / 20921) for Heatilator & Heat N Glo Fireplaces

Pilot Assembly – Propane (4021-733 / 25661 / 20921) for Heatilator & Heat N Glo Fireplaces
Restore consistent ignition and safe operation in your propane-fueled fireplace with this OEM-equivalent LP pilot assembly for Heatilator and Heat N Glo models. The 4021-733 assembly comes fully equipped with a thermocouple, thermopile, 4" ceramic electrode, and pilot tubing—everything you need for a complete replacement. With a 24" lead, this propane pilot is built for a precise fit and dependable flame control.

✅ Key Features:

✅ Complete Assembly – Includes thermopile, thermocouple, 4" ceramic electrode, and pilot tubing
✅ Propane (LP) Compatible – Specifically designed for LP gas systems
✅ OEM Equivalent – Replaces part numbers 4021-733 and 25661 (previously 25660)
✅ Reliable Ignition – Ensures consistent spark and flame for safe, automatic operation
✅ Extended 24" Lead – Offers flexible installation options in most fireplace configurations

📌 Specifications:

📌 Part Numbers: 4021-733, 25661, 25660, 20921
📌 Fuel Type: Propane (LP)
📌 Electrode Length: 4" ceramic igniter
📌 Lead Length: 24 inches
📌 Components Included: Thermocouple, thermopile, pilot tubing, ceramic electrode
📌 OEM Status: OEM-equivalent replacement part
📌 Sold: Individually

🔧 Compatible With:

• Heatilator Fireplaces

• Heat N Glo Fireplaces

• Other HHT (Hearth & Home Technologies) Models using LP pilot assembly 4021-733 or 25661

Note: Always verify your model and part number in the owner’s manual before purchase to ensure compatibility.

Replace your worn pilot assembly and ensure safe, efficient ignition with the 4021-733 Propane Pilot Kit. Designed for Heatilator and Heat N Glo LP models, this complete assembly delivers long-term performance and worry-free startup. Order today to restore your fireplace’s ignition system!

Heatilator Gas Fireplaces:

• GCDC42 Models
• CD4842ILR
• GCDC60 Models
• GCDC80 Models
• GDCH60
• GDCL60 Models
• GDCR60 Models
• GDFL36 Models
• GDFL60V
• GDST60
• CD4842MR Models
• CD4236R
• CD4842LR
• CD4842R Models
• GDST60V
• GNDC36
• CD4842R
• CGC150 Models
• NANOV
• G141
• GB4336
• G141 Models
• GC150L
• GDFL60
• G270M Models
• GB4336 Models
• G141L
• GB4336L
• GB4942 Models
• GBCL36
• GB4942
• GBCR36
• GCBC80 Models
• G270M
• G270LM
• GC150
• GBFL36 Models
• CGC150
• CGC150L
• GBIS36 Models
• GBST36
• GCBC42
• GCBC36
• GCBC36L
• GDST60LV
• GDCR60
• GDCR60L
• GDCL60
• GDCL60L
• CD4236R Models
• GC150 Models
• GNDC30
• GNBR33, GNBR33L
• GNBR30, GNBR30L
• GNBC33, GNBC33L & S.I.T
• GGBR80, GGBR80L
• GGBR60, GGBR60L
• GDST36, GDST36L
• GDCR36, GDCR36L
• GDCL36, GDCL36L
• GNTC80, GNTC80B
• GNTC50, GNTC50B
• GNRH36, GNRH36L & S.I.T
• GNRH33, GNRH33L, & S.I.T
• GNRC36, GNRC36L & S.I.T
• GNRC33, GNRC33L & S.I.T
• GNDR36, GNDR36L
• GNDR33, GNDR33L
• GNDR30, GNDR30L
• GNDH36, GNDH36L & S.I.T
• GNDH33, GNDH33L, & S.I.T
• GNDH30, GNDH30L & S.I.T
• GNDC30, GNDC30L & S.I.T
• GNBR36, GNBR36L
• GCBC42L
• GCBC60L
• GDCH36 Models
• GDCH60V, GDCH60LV
• GCBC60
• GCBC80
• GCDC36
• GCDC42
• GCDC60
• GCDC80
• GDCH36
• GDFL36
• GNBC36
• GNDC33
• GNTC50 Models
• GB4336/GB4942 Models
• GCDC80E Models
• GNBR36 & E
• GNDR30 & E
• GNDR36 & E
• GBCL/CR/FL/ST 36 Models
• GBFL36
• GBiS36
• GB4942L
• GCBC36 Models
• GC150 & E
• TWILIGHT-II
• NDI35
• GC421LE
• CFL-30-B
• ADVR3428
• NOVi35
• GCBC42 Models
• GCDC36 Models
• CD4236LR
• GC361 Models
• CD4842IR-C
• GBi25
• ODY42
• ODY42L

Heat & Glo-Fire Gas Fireplaces:

• Palazzo See-Through - ODPALGST-48
• 6000GDVFL-NF

Majestic Gas Fireplaces:

• 36CDVX Tribute

Quadra- Fire Gas Fireplaces:

• DV750 (PRE SN 3096)
• DV-400
• DV400S
• DV-425
• DV-450
• DV-750
• SAPPHIRE 50 (DV450)
• DV425, DV425L
• DV750 (POST SN 3196)
• DV400, DV400L
• Twilight II-B