We ship worldwide — Singapore, Australia, Malaysia, Indonesia, Philippines, India, Middle East & more

Robertshaw Flame Sensor: Universal, Spark Intermittent Pilot, Straight, 72 in Probe Lg - Universal Replacement Flame Sensors
RobertshawUniversal Replacement Flame Sensors

Robertshaw Flame Sensor: Universal, Spark Intermittent Pilot, Straight, 72 in Probe Lg

The ROBERTSHAW 1751-749 is a universal replacement flame sensor designed for intermittent pilot ignition systems. This straight-probe sensor features a 72-inch probe length and a hardwired electrical connection…

SKU 3G-OTH-68589

Brand
Robertshaw
Item
Flame Sensor: Universal, Spark Intermittent Pilot, Straight, 72 in Probe Lg
Category
Universal Replacement Flame Sensors
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

Robertshaw
Manufacturer Part Number
1751-749
Type
Spark Intermittent Pilot, Straight, Hardwired
Probe Lg
72 in
Product Type
Flame Sensor
Probe Tip Angle
Straight
Replacement for OEM Brand
Universal
Electrical Connection Type
Hardwired
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

Robertshaw Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The ROBERTSHAW 1751-749 is a universal replacement flame sensor designed for intermittent pilot ignition systems. This straight-probe sensor features a 72-inch probe length and a hardwired electrical connection, making it suitable for a wide range of OEM equipment. It is a direct replacement part for universal applications.

Used in

Common applications for Robertshaw
Commercial HVAC — Robertshaw RS10420T digital WiFi thermostat for programmable heat and cool control in office buildings
Furnace ignition — Robertshaw 41-230 universal hot surface ignitor for silicon carbide replacement in residential and light commercial furnaces
Airflow monitoring — Robertshaw 2374-509 adjustable air pressure switch for draft sensing in industrial burner systems
Gas-fired equipment — Robertshaw 1820-009 universal pilot assembly with thermopile for natural gas or LP water heaters and boilers
Vibration protection — Robertshaw 366A0 mechanical vibration switch for pump and compressor monitoring in industrial plants
OEM replacement — Robertshaw 41-428N direct spark igniter for Trane HVAC equipment requiring silicon nitride ignitors

Robertshaw Products

3G Electric supplies Robertshaw universal replacement flame sensors. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Similar products

Matched by specification & description
Pilot Assembly: Universal, LP/Natural Gas, Straight, BJWA/FD/GS, Std Tip (MPN 1830-210). Key specifications — Replacement for OEM Part Number: 2CH/2C; Brand: ROBERTSHAW; Compatible with Series: GS; For Fuel Type: LP; Product Type: Pilot Assembly; Components Included: None.
Robertshaw
Pilot Assembly: Universal, LP/Natural Gas, Straight, BJWA/FD/GS, Std Tip (MPN 1830-210). Key specifications — Replacement for OEM Part Number: 2CH/2C; Brand: ROBERTSHAW; Compatible with Series: GS; For Fuel Type: LP; Product Type: Pilot Assembly; Components Included: None.
Pilot Assembly: Universal, LP, 3-Way, Thermocouple, Thermopile and Flame Sensor, Uni-Line® 1900-1970 (MPN 1819-001). Key specifications — Replacement for OEM Part Number: 77705; Brand: ROBERTSHAW; Compatible with Series: Uni-Line® 1900-1970; For Fuel Type: LP; Product Type: Pilot Assembly; Components Included: Thermocouple, Thermopile and Flame Sensor.
Robertshaw
Pilot Assembly: Universal, LP, 3-Way, Thermocouple, Thermopile and Flame Sensor, Uni-Line® 1900-1970 (MPN 1819-001). Key specifications — Replacement for OEM Part Number: 77705; Brand: ROBERTSHAW; Compatible with Series: Uni-Line® 1900-1970; For Fuel Type: LP; Product Type: Pilot Assembly; Components Included: Thermocouple, Thermopile and Flame Sensor.
Pilot Assembly: OEM, LP/Natural Gas, 25° Left, Flame Sensor, Uni-Line® 1900-1970, Snap-Fit Tip (MPN 1830-705). Key specifications — Replacement for OEM Part Number: 2S-6; Brand: ROBERTSHAW; Compatible with Series: Uni-Line® 1900-1970; For Fuel Type: LP; Product Type: Pilot Assembly; Components Included: Flame Sensor.
Robertshaw
Pilot Assembly: OEM, LP/Natural Gas, 25° Left, Flame Sensor, Uni-Line® 1900-1970, Snap-Fit Tip (MPN 1830-705). Key specifications — Replacement for OEM Part Number: 2S-6; Brand: ROBERTSHAW; Compatible with Series: Uni-Line® 1900-1970; For Fuel Type: LP; Product Type: Pilot Assembly; Components Included: Flame Sensor.
Pilot Assembly: Universal, LP/Natural Gas, Straight, 2CH-10, Std Tip (MPN 1830-115). Key specifications — Includes: Adaptor; Replacement for OEM Part Number: 2CH/2C; Brand: ROBERTSHAW; Compatible with Series: 2CH-10; For Fuel Type: LP; Product Type: Pilot Assembly; Components Included: None.
Robertshaw
Pilot Assembly: Universal, LP/Natural Gas, Straight, 2CH-10, Std Tip (MPN 1830-115). Key specifications — Includes: Adaptor; Replacement for OEM Part Number: 2CH/2C; Brand: ROBERTSHAW; Compatible with Series: 2CH-10; For Fuel Type: LP; Product Type: Pilot Assembly; Components Included: None.
Pilot Assembly: OEM, LP/Natural Gas, 90° Left, Flame Sensor, Uni-Line® 1900-1970 (MPN 1830-716). Key specifications — Replacement for OEM Part Number: 5SHL-1; Brand: ROBERTSHAW; Compatible with Series: Uni-Line® 1900-1970; For Fuel Type: Natural Gas; Product Type: Pilot Assembly; Components Included: Flame Sensor.
Robertshaw
Pilot Assembly: OEM, LP/Natural Gas, 90° Left, Flame Sensor, Uni-Line® 1900-1970 (MPN 1830-716). Key specifications — Replacement for OEM Part Number: 5SHL-1; Brand: ROBERTSHAW; Compatible with Series: Uni-Line® 1900-1970; For Fuel Type: Natural Gas; Product Type: Pilot Assembly; Components Included: Flame Sensor.
Pilot Assembly: Universal, LP/Natural Gas, 25° Left, Uni-Line® 1820 (MPN 1830-501). Key specifications — Replacement for OEM Part Number: 2CH/2C; Brand: ROBERTSHAW; Compatible with Series: Uni-Line® 1820; For Fuel Type: LP; Product Type: Pilot Assembly; Components Included: None.
Robertshaw
Pilot Assembly: Universal, LP/Natural Gas, 25° Left, Uni-Line® 1820 (MPN 1830-501). Key specifications — Replacement for OEM Part Number: 2CH/2C; Brand: ROBERTSHAW; Compatible with Series: Uni-Line® 1820; For Fuel Type: LP; Product Type: Pilot Assembly; Components Included: None.

More from Robertshaw

View all Robertshaw parts
Flame Sensor: OEM, Hot Surface Ignition, Straight, 3 in Probe Lg, Quick Connect Terminals (MPN 10-6830). Key specifications — Probe Tip Angle: Straight; Electrical Connection Type: Quick Connect Terminals; Brand: ROBERTSHAW; Replacement for OEM Brand: Goodman; Replacement for OEM Part Number: 0130F00010; Product Type: Flame Sensor.
Robertshaw
Flame Sensor: OEM, Hot Surface Ignition, Straight, 3 in Probe Lg, Quick Connect Terminals (MPN 10-6830). Key specifications — Probe Tip Angle: Straight; Electrical Connection Type: Quick Connect Terminals; Brand: ROBERTSHAW; Replacement for OEM Brand: Goodman; Replacement for OEM Part Number: 0130F00010; Product Type: Flame Sensor.
Flame Sensor: Universal, Spark Intermittent Pilot, Straight, 24 in Probe Lg, Hardwired (MPN 1751-729). Key specifications — Probe Tip Angle: Straight; Electrical Connection Type: Hardwired; Brand: ROBERTSHAW; Replacement for OEM Brand: Universal; Product Type: Flame Sensor.
Robertshaw
Flame Sensor: Universal, Spark Intermittent Pilot, Straight, 24 in Probe Lg, Hardwired (MPN 1751-729). Key specifications — Probe Tip Angle: Straight; Electrical Connection Type: Hardwired; Brand: ROBERTSHAW; Replacement for OEM Brand: Universal; Product Type: Flame Sensor.
Flame Sensor: OEM, Hot Surface Ignition, 90°, 3 in Probe Lg, Quick Connect Terminals (MPN 10-6840). Key specifications — Probe Tip Angle: 90°; Electrical Connection Type: Quick Connect Terminals; Brand: ROBERTSHAW; Replacement for OEM Brand: Lennox; Replacement for OEM Part Number: 69W43; Product Type: Flame Sensor.
Robertshaw
Flame Sensor: OEM, Hot Surface Ignition, 90°, 3 in Probe Lg, Quick Connect Terminals (MPN 10-6840). Key specifications — Probe Tip Angle: 90°; Electrical Connection Type: Quick Connect Terminals; Brand: ROBERTSHAW; Replacement for OEM Brand: Lennox; Replacement for OEM Part Number: 69W43; Product Type: Flame Sensor.
Flame Sensor: OEM, Hot Surface Ignition, 90°, 5 in Probe Lg, Quick Connect Terminals (MPN 10-6850). Key specifications — Probe Tip Angle: 90°; Electrical Connection Type: Quick Connect Terminals; Brand: ROBERTSHAW; Replacement for OEM Brand: Trane; Replacement for OEM Part Number: SEN01114; Product Type: Flame Sensor.
Robertshaw
Flame Sensor: OEM, Hot Surface Ignition, 90°, 5 in Probe Lg, Quick Connect Terminals (MPN 10-6850). Key specifications — Probe Tip Angle: 90°; Electrical Connection Type: Quick Connect Terminals; Brand: ROBERTSHAW; Replacement for OEM Brand: Trane; Replacement for OEM Part Number: SEN01114; Product Type: Flame Sensor.