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White ignition sensor bracket assembly with 72 in probe and lead

Robertshaw

Robertshaw 1751-749 Ignition Sensor Bracket Assembly 72 in thermostat

SKU CH-H03G-HMSCB

A universal flame sensor bracket assembly with 72-inch probe and lead length for spark intermittent pilot ignition systems on LP and natural gas appliances

  • Product typeLearning Thermostats
  • Product colorWhite
  • Universal replacement flame sensor fits many spark intermittent pilot systems
  • Straight probe tip with 72 in length reaches burners in deep cabinets
  • Hardwired electrical connection with 72 in lead simplifies installation
  • Compatible with LP and natural gas fuels for flexible service use
  • New Robertshaw 1751-749 assembly ensures reliable ignition sensing

Robertshaw 1751-749 Ignition Sensor Bracket Assembly

The Robertshaw 1751-749 is a replacement flame sensor assembly designed for gas-fired heating equipment. It fits spark intermittent pilot ignition systems and serves HVAC technicians and maintenance crews who need a universal bracket solution. The white probe installs directly into existing burner compartments.

Sustained operation with 72 in probe and lead

The 72 in probe and matching 72 in lead maintain consistent flame detection across the full heating cycle. Hardwired electrical connection eliminates plug corrosion that can cause nuisance lockouts over time. Straight probe tip angle positions the sensor reliably in the flame envelope for continuous monitoring during extended burner runs.

Universal bracket fits multiple equipment brands

The universal bracket design accepts various mounting patterns without modification. Compatibility covers both LP and natural gas fuel types across multiple equipment series. Buyers who need a model-specific OEM bracket with proprietary mounting holes cannot use this assembly.

How it compares

Measured against everything we stock in Thermostats & Thermostat Accessories, at today’s prices. Recalculated every night.

Price $37.99
Cheaper than about 70% of the 286 comparable items (median $78.49).

Specifications

Product
Brand nameROBERTSHAW
Product typeLearning Thermostats
Product colorWhite

Questions about this item

How much heat does the 72 in probe withstand during continuous pilot operation?

The probe tip is straight and rated for LP and natural gas flames in intermittent pilot systems, with a 72 in lead length for hardwired connection to the ignition module.

Which existing ignition module and gas valve must the installer already have to use this assembly?

The sensor works with spark intermittent pilot ignition systems and requires a compatible module that accepts a hardwired flame rod with a 72 in lead.

Will the straight 72 in probe reach the pilot burner on older equipment with the original bracket spacing?

The universal bracket and straight 72 in probe are designed to fit a wide range of pilot assemblies, allowing adjustment to match existing burner geometry.

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