Product Description

This is an OEM HHT Pilot Assembly (in natural gas) that fits many HHT fireplaces (see applicable models below).  This is a genuine HHT replacement part that ships new in its original packaging, it is not an aftermarket copy.

HHT Part Number: 4021-736 (Replaces old part number 485-510A)

Part Description: Replacement Pilot Assembly for for many gas fireplaces, stoves and inserts. Pilot assembly complete with thermocouple (24″ long Fast acting,) thermopile, sparker electrode, and pilot tubing

Applicable HHT Models:

Heatilator Gas Fireplaces:

• NB3630 – Pre Serial # GA1587915
• NB3933 – Pre Serial # GA1587915
• NB4236 – Pre Serial # GA1587915
• NB4842 – Pre Serial # GA1587915
• ND3630 & ND3630L – Pre serial # GA1587914
• ND3630M – Pre serial # GA1587914
• ND3933 & ND3933L – Pre serial # GA1587914
• ND3933M – Pre serial # GA1587914
• ND4236 & ND4236L – Pre serial # GA1587914
• ND4236M – Pre serial # GA1587914
• ND4842 & ND4842L – Pre serial # GA1587914
• ND4842M – Pre serial # GA1587914

Heat N Glo Gas Fireplaces:

• AT-Grand-B
• AT-Grand-C
• AT-Grand-D
• AT-Supreme-B
• AT-Supreme-C
• AT-Supreme-D
• AT-ZC-B – Robert Shaw valve after February 2001
• Bay-Insert-NS
• CFX-Grand-B
• CFX-IN-B
• FB-Grand
• FB-IN
• Bay-38HV
• L-COR-TRC
• L-COR-TVFL
• Pier-38HV
• Pier-TRC
• Pier-TVFL
• R-COR-TRC
• R-COR-TVFL
• ST-38HV
• ST-42TVFL
• ST-TRC
• 6000BE
• 6000CAMP
• 6000SEB
• 6000TRB
• 6000TRI
• 6000TRI-SP
• 6000TR-OAK
• 6000TRXI
• 6000TVB
• 6000TV-Oak
• 6000XLSB
• 6000XLTB
• 7000TR-NF
• 7000TV-NF
• 7000XLS-NF
• 7000XLT-NF
• 8000TRC
• 8000TRD
• 8000TR-Oak – Pre serial # 0021116425
• 8000TVC
• 8000TVD
• 8000TV-Oak – Pre serial # 0021116948
• BE-41
• BE-41B
• Everest – Standing pilot only, pre serial # 5000
• BE-32 – Pre serial # 2107620
• BE-36
• BE-36-C – Pre serial # 0021076020
• SL-350TRS
• SL-350TV
• SL-550TR
• SL-550TR-C
• SL-550TR-D – Pre serial # 0021076206
• SL-550TRS
• SL-550TRS-B
• SL-550TRS-C
• SL-550TV
• SL-750TR
• SL-750TR-C
• SL-750TR-D – Pre serial # 0021076251
• SL-750TRFL
• SL-750TRS-B
• SL-750TRS-C
• SL-750TV
• SL-750TV-C
• SL-950TR
• SL-950TR-C
• SL-950TV

Quadrafire Gas Fireplaces:

• QV32
• QV32-A
• QV36
• QV36-A
• QV36D
• QV36D-A
• QV36DB
• QV36DB-A
• QVI-30FB
• QV-Pier
• QV-ST

Please note this will not replace the mercury bulb type pilot

About HHT (Hearth & Home Technologies)

HHT offers a diverse range of hearth products, encompassing gas, electric, wood, and pellet-burning fireplaces, inserts, stoves. They represent many brands, including, but not limited to:

• Heat & Glo
• Heatilator
• Majestic
• Vermont Castings
• Quadra-Fire
• Harman
• SimpliFire
• Monessen
• Stellar
• PelPro
• Outdoor GreatRoom

If your part is not listed on our website, please contact us and we would be happy to help try and source it!

This genuine HHT / Heat N Glo Pilot Assembly – NG (4021-736/485-510A) is in stock ready to ship