Best Spark Igniters for Water Heaters: Replacement Parts Guide
Finding the right spark igniter or electrode for your water heater can reduce ignition time, improve safety, and restore hot water quickly on RVs and household systems. This guide highlights five reliable options, explains key compatibility details, and compares installation considerations to help you choose the best spark ignition replacement for your unit.
Summary of Selected Products
| Product | Brand | Model/Compatibility | Key Benefit |
|---|---|---|---|
| Water Heater Igniter Electrode with Spark Probe | LDCRE | Atwood 93868, GCH6-4E/6E/7E, XT 6 and 10 Series | |
| C3 Piezo Ignitor Assembly | rosyquarz | FVIR Reliance and many newer models | |
| 93868 6 & 10 Gallon Igniter Electrode | Lrichy | Atwood 93868 family; XT Series | |
| RV Water Heater Electrode Spark Igniter – 2 Pack | MCAMPAS | Suburban SW Series (various) | |
| Atwood 93868 Replacement Parts – Spark & Sensor | PERMINKS | Atwood 93868 family; XT 6 & 10 gal |
Water Heater Igniter Electrode with Spark Probe

The LDCRE Water Heater Igniter with Spark Probe is designed for Atwood and similar RV water heaters, providing a local sense electrode spark probe essential for safe operation. This replacement part supports models including GCH6-4E, GCH6-6E, and a wide XT series range. Before installation, verify the gap between the sparking probe and the ground probe is about 1/8 inch, and ensure both probes are clean and free of damage. Proper positioning places the probes in the gas flow path to maximize ignition reliability.
C3 Piezo Ignitor Assembly For FVIR Gas Water Heaters

The 9003410 C3 Piezo Ignitor Assembly provides a battery-free ignition method, relying on physical pressing to generate an arc. It aims to improve starting efficiency and reduce ignition time. The unit is compatible with Reliance FVIR technology gas water heaters and fits numerous newer Rheem, Whirlpool, A.O. Smith, and Bradford White models. High-quality ABS materials help maintain performance under heat, humidity, and dust, while the bracket ensures secure mounting during operation.
Lrichy 93868 6 & 10 Gallon RV Water Heater Igniter

The Lrichy 93868 spark electrode and sensor replacement targets a broad Atwood and XT series compatibility, covering numerous 6 and 10-gallon models. It emphasizes an easy installation pathway: simply remove the old igniter and install the new electrode in the original location. The kit strengthens ignition reliability and is built to withstand RV environments, with a focus on durable materials and precise electrical connections for stable operation.
MCAMPAS RV Water Heater Electrode Spark Igniter

The MCAMPAS two-pack spark igniter is designed for Suburban SW series RV water heaters, ensuring compatibility with a wide range of models. Made with Kanthal materials, the components resist high temperatures and heavy use, maintaining reliable ignition. The two-pack design offers convenience for DIY maintenance or multi-unit RV setups, and installation typically involves replacing the old sensor electrode in the original position in a straightforward process.
Atwood 93868 Replacement Parts – Spark & Sensor

PERMINKS offers a comprehensive spark and sensor electrode set specifically for Atwood 93868 models, including GCH6-4E, GCH6-6E, GCH6-7E, and XT 6 & 10-gallon units. The parts are designed for easy installation and dependable ignition performance, helping RV owners maintain hot water supply on the road. Proper fitment is essential, and the kit is presented as a straightforward replacement option for DIY enthusiasts and professionals alike.
Saillong 2 Packs Spark and Sensor Electrode

The Saillong 2-pack sets offer spark and sensor electrodes compatible with Atwood 93868 units, including many related G-series models. Designed for RV, camper, and trailer use, these parts emphasize compatibility with XT 6 and 10-gallon systems, straightforward installs, and robust durability. Confirm model compatibility before purchase to ensure seamless replacement aligned with your specific water heater configuration.
Buying Guide: Key Purchase Considerations And Comparisons
- Model compatibility: Confirm the exact water heater model and year to ensure the spark igniter or electrode matches the required configuration (Atwood, Suburban, Reliance FVIR, XT series, etc.).
- Ignition method: Piezo designs (battery-free) offer quick starts but may differ in reliability under extreme conditions. Electronic spark probes rely on proper alignment and clean connections.
- Material durability: Look for electrodes and probes made from corrosion-resistant metals (e.g., Kanthal) and robust housings to withstand heat, humidity, and vibration common in RV environments.
- Installation effort: Some parts are straightforward drop-ins, while others require bracket alignment or wiring checks. Choose kits that include clear instructions and necessary hardware.
- Maintenance considerations: Probes should be inspected for cracks, corrosion, or buildup. Maintaining the gap (about 1/8 inch) between the sparking probe and the ground probe is crucial for consistent ignition.
- Bundle value: If managing multiple RVs or spare parts, two-pack or multi-part bundles may offer cost efficiency and convenience for maintenance schedules.
- Safety and compatibility notes: Ensure the replacement part supports the same safety standards and is compatible with FVIR or other control technologies in your water heater model.
- Installation resources: Some listings mention installation videos or step-by-step instructions—utilize these guides to reduce installation time and errors.
In selecting a spark igniter replacement, prioritize parts that clearly list your exact model compatibility, include comprehensive installation guidance, and use durable materials designed for RV environments. For RV owners, keeping a few compatible spare parts on hand can minimize downtime and ensure reliable hot water during trips.