Mestek j38r06891-003 Spark Ignitor Gg Series

Product Description

The MESTEK j38r06891-003 is a spark ignitor designed for GG Series gas heating units rated from 30,000 to 120,000 BTU/h. The ignitor generates the high-voltage spark needed to light the burner on each call for heat, making it a critical component in the ignition sequence. When this part fails, the unit will not light and the system locks out on ignition fault. Licensed HVAC technicians typically handle replacement during a no-heat service call. This part is sold under the MESTEK brand and is referenced in Sterling-branded equipment documentation.

This spark ignitor fits GG Series gas heating units across the 30,000 to 120,000 BTU/h capacity range. It is suited for residential and light commercial applications where GG Series units are installed. Replacement is most common when the ignitor electrode has cracked, corroded, or worn to the point where reliable spark generation is no longer possible.

Key Features

• Direct replacement spark ignitor for GG Series gas units
• Compatible capacity range of 30,000 to 120,000 BTU/h
• OEM part number j38r06891-003 ensures correct fitment
• Restores reliable ignition sequence on call for heat

Compatibility

Designed as a replacement spark ignitor for MESTEK and Sterling GG Series gas heating units rated 30,000 to 120,000 BTU/h, as stated in manufacturer documentation.

Installation Notes

Installation should be performed by a licensed HVAC technician. Shut off all electrical power and close the manual gas shutoff valve to the unit before beginning any ignitor service. Handle the ignitor electrode carefully to avoid cracking the ceramic insulator, which will cause immediate ignition failure. Work should comply with applicable local codes and the manufacturer service manual for the specific unit.

Technical Specifications

• Capacity Range: 30,000 to 120,000 BTU/h
• Ignitor Type: Spark Ignitor
• Compatible Series: GG Series

Standard Information

• Brand: MESTEK
• Manufacturer Part Number: j38r06891-003