Direct answer: if you need a dependable pilot assembly for boilers or water heaters, choose products that match your system’s gas type, compatibility with existing thermocouples or thermopiles, and the required pilot length. The top five options below cover Honeywell-compatible assemblies, universal water heater pilots, and multi-model replacements. They’re suited for homeowners performing simple replacements, technicians restoring gas-fired equipment, and property owners maintaining standard gas boilers or water heaters.
Summary table of chosen products:
| Product | Best For | Key Benefit |
|---|---|---|
| Q314A4586 Pilot Burner with Thermocouple Assembly | Honeywell systems and various furnaces/boilers | Versatile compatibility and efficient ignition |
| Water Heater Pilot Assembly, 24” | Gas water heaters (Desa, NR, Sears, Remington, etc.) | Reliable thermocouple replacement with universal fit |
| Water Heater Pilot Assembly With Thermocouple & Tubing | Natural gas water heaters requiring 24″ length | Standard replacement with included tubing |
| SP21058 SP20824 Pilot Assembly | Rheem/Ruud/Richmond water heaters | Complete kit with thermopile and sparker |
| Pilot Assembly Kit for CGT, CGS, CGi Boilers | CGT/CGS/CGi NG boilers | Basic replacement kit for boiler pilots |
Q314A4586 Pilot Burner With Thermocouple Assembly

The Q314A4586 pilot assembly is designed to fit several Honeywell models and common gas appliances. It supports Honeywell Q314A6102/U Q314-1 and Q309/Q340/Q390 thermocouples or Q313 thermopiles, plus VR8300A4516 controls. This makes it a strong choice for homes with a Honeywell control platform needing a single replacement that covers multiple compatible parts. The kit emphasizes efficient ignition to safely light the main burner before gas can accumulate, helping to reduce wasted gas and improve safety. It also includes an electric thermocouple for flame monitoring and automatic shutdown if the flame is lost, which prevents gas leakage.
- Best for: Homeowners with Honeywell control systems and multiple compatible pilot models.
- Why selected: Broad compatibility reduces the need for multiple replacements; ignition efficiency supports safer operation.
- Caution: Verify exact model compatibility before ordering to ensure a perfect fit with your thermostat or valve.
Water Heater Pilot Assembly, 24” Thermocouple

This pilot assembly is designed for gas water heaters with a 24-inch thermocouple, fitting several popular brands. It emphasizes dependable operation for replacement parts, making it a solid pick for households maintaining RLP55V, RLP125V, REM55PV, REM125PV, or similar burner kits. The 24-inch thermocouple ensures precise temperature sensing for reliable ignition. This option is best for those looking for a straightforward replacement that maintains safe continuous operation of water heaters.
- Best for: Homeowners replacing gas water heater pilots with compatible 24″ thermocouples.
- Why selected: Reliable fit for common water heater burner kits; avoids rework from incompatible lengths.
- Caution: Confirm your existing system’s model compatibility before purchase.
Water Heater Pilot Assembly With Thermocouple And Tubing

This 24-inch water heater pilot assembly includes a thermocouple and tubing for natural gas systems. It is presented as a standard replacement suitable for various gas water heaters and is intended for professional installation. The kit emphasizes compatibility with multiple brands while noting that not all water heaters will match. It’s best for service professionals or experienced homeowners who require a reliable 24-inch setup with an included thermocouple.
- Best for: Replacements needing a standard 24″ pilot with thermocouple and tubing.
- Why selected: Included tubing simplifies installation; broad applicability for natural gas water heaters.
- Caution: Not all models will be compatible; verify your unit’s specifications.
SP21058 SP20824 Pilot Assembly For Water Heaters

This pilot assembly kit includes a full set of components for water heaters, including thermopile and sparker, suitable for Rheem, Ruud, and Richmond units. The kit matches NG systems with an LP option included, and it notes a 24.2-inch terminal-to-valve line length and a 28.5-inch electrode wire line. It emphasizes that it uses an electrical thermocouple connection and warns buyers to verify compatibility before purchase. The kit is designed for long-term performance, with corrosion and wear resistance as notable attributes.
- Best for: Replacement on Rheem/Ruud/Richmond water heaters that require a full ignition kit.
- Why selected: Includes sparker, thermopile, and LP option, offering a complete solution.
- Caution: Check the thermocouple connection type to ensure a match with your system.
Pilot Assembly Kit For CGT, CGS, CGi Boilers

This kit provides a straightforward replacement option for CGT, CGS, and CGi NG boilers. It is a basic assembly suitable for standard boiler pilots, making it a practical choice for technicians or homeowners with these specific models. The data indicates compatibility with common NG boiler configurations and a simpler setup than full ignition kits.
- Best for: CGT/CGS/CGi NG boiler pilots needing a basic replacement.
- Why selected: Simple, boiler-specific replacement option with essential components.
- Caution: Not suitable for non-CGT/CGS/CGi models or LP configurations.
Buying Guide: Pilot Assemblies For Boilers And Water Heaters
What should you match when choosing a pilot assembly?
Key considerations include gas type (natural gas vs. LPG), compatibility with your existing thermocouple or thermopile setup, and the required pilot length. Always verify model numbers and valve compatibility before purchase.
Which features influence reliability and safety?
Look for a unit with a robust ignition method, real-time flame monitoring, and automatic shutoff if the flame goes out. A thermocouple that matches your system reduces the risk of gas leakage and ensures prompt safety responses.
How do you decide between a universal vs. model-specific kit?
Universal options are convenient when you have multiple appliances or uncertain compatibility. If your system uses a specific Honeywell or brand-controlled interface, a model-specific kit can reduce the risk of fitment issues and improve performance.
Installation considerations
Many pilot assemblies are intended for replacement by qualified personnel. If you are performing maintenance yourself, follow the appliance manufacturer’s guidelines, use protected wiring, and ensure gas lines are properly sealed after replacement.
Durability and long-term maintenance
Choose assemblies made from corrosion-resistant materials. Regular inspection of the thermocouple and sparker can extend service life and improve ignition reliability over time.
FAQ
- Q: Do these pilot assemblies fit all water heaters?
- A: No. Compatibility depends on model, gas type, and connector configuration. Always verify model numbers and inlet/outlet specifications before purchasing.
- Q: Should I replace the thermocouple when replacing the pilot assembly?
- Q: Can I install a pilot assembly myself?
- Q: What is the benefit of an integrated sparker and thermopile kit?
- Q: How can I verify compatibility with my boiler or water heater?