Quick answer: For a Raypak Hi Delta, XTherm, MVB, or Digital gas heater, the Raypak 007400F 120V Hot Surface Ignitor Kit is the correct OEM replacement. For Pentair MasterTemp or Max-E-Therm heaters, use the Pentair 77707-0054 Igniter and Gasket Kit, which bundles the burner tray gasket so you’re not reordering parts twice. Hayward Universal H-Series and Low NOx models take the Hayward FDXLIGN1930 FD Ignitor Kit, and Jandy/Zodiac JXi 200/260/400 heaters use the Zodiac R0457502 Igniter Kit. All four are hot-surface designs that typically hold up for about 3-5 years of typical seasonal use before the element cracks or weakens enough to stop lighting the burner reliably.
A heater that runs its full startup sequence — pump on, gas valve click, blower spin-up — but never fires is the classic igniter-failure symptom, and it’s usually a 15-minute swap once you have the right part number for your specific model. Buying the wrong igniter for your heater’s model line is the most common mistake here, since Raypak, Pentair, Hayward, and Jandy all use different mounting brackets and connector plugs even when the underlying hot-surface element looks similar. We matched each kit below to the model lines it actually fits.
Pool heater igniter kits at a glance
| Igniter kit | Fits | Includes gasket? | Price |
|---|---|---|---|
| Raypak 007400F | Hi Delta, XTherm, MVB, Digital (120V) | No | $105-$150 |
| Pentair 77707-0054 | MasterTemp, Max-E-Therm (all sizes) | Yes | $70-$140 |
| Hayward FDXLIGN1930 | Universal H-Series, Low NOx (FD models) | No | $55-$115 |
| Zodiac R0457502 | Jandy JXi 200, 260, 400 | No | $50-$80 |
1. Raypak 007400F — For Hi Delta, XTherm, MVB & Digital
Raypak 007400F 120V Hot Surface Ignitor Kit
- OEM part for Raypak's commercial and higher-end residential lines — confirm your model on the heater's rating plate before ordering, since Raypak's Digital and Legacy series use different igniter mounts.
- 120V hot-surface design that glows to ignition temperature in seconds; no pilot light or standing flame to maintain.
- Ships as the ignitor element only — reuse the existing mounting bracket and gasket unless they're visibly cracked or the heater is leaking exhaust at the burner tray.
- Installs with two mounting screws and a single plug-in connector after removing the burner compartment door — no gas line work required.
If your Raypak heater has been throwing an ignition-failure lockout code after 3+ seasons of regular use, the 007400F is the first part to swap before assuming it’s a gas valve or control board problem — igniters fail far more often than either of those.
2. Pentair 77707-0054 — For MasterTemp & Max-E-Therm
Pentair 77707-0054 Igniter and Gasket Replacement Kit
- The single igniter part number Pentair uses across the entire MasterTemp lineup (125 through 400) and the Sta-Rite Max-E-Therm, which shares the same burner assembly.
- Bundling the gasket in the kit avoids a second order — the burner tray gasket degrades from the same heat cycling as the igniter and is worth replacing at the same time.
- Straightforward swap: remove the burner tray access panel, unplug the old igniter, swap the gasket, mount the new igniter, reconnect.
- Genuine Pentair part, not a generic aftermarket equivalent — worth confirming when buying, since off-brand "compatible" igniters for MasterTemp heaters have a higher reported failure rate in owner forums.
Want the part on hand before your next pool day instead of waiting on standard shipping? Try Amazon Prime free for 30 days and get it delivered in two days — useful when a dead igniter means the heater is offline mid-season.
3. Hayward FDXLIGN1930 — For Universal H-Series & Low NOx
Hayward FDXLIGN1930 FD Ignitor Replacement Kit
- Matches the Universal H-Series and Low NOx ("FD") heaters specifically — Hayward's older HeatPro and non-Low-NOx models use a different igniter, so double-check the model number on the heater's data plate.
- Same hot-surface design principle as the Raypak and Pentair kits above, rated for a similar roughly-10,000-cycle service life under normal seasonal use.
- Two-screw mount with a keyed connector that only seats one way, which makes a wrong-orientation install unlikely.
- Pairs well with a broader parts check — if the igniter failed from age, the flame sensor and pressure switch on the same heater are often close behind in our [pool heater parts guide](/guides/pool-heater-parts/), or see our [pressure switch replacement picks](/best/best-pool-heater-pressure-switch/) if you're seeing flow-related lockouts specifically.
4. Zodiac R0457502 — For Jandy JXi 200/260/400
Zodiac R0457502 Igniter Kit for Jandy JXi Heaters
- The correct igniter for Jandy's JXi line specifically — older Jandy Lite2 and Hi-E2 heaters use different Zodiac part numbers (R0449800 and R0016400 respectively), so match the part to the model, not just the brand.
- Hot-surface design that reaches ignition temperature quickly, matching the JXi's fast-start burner sequence.
- Accessible from the front burner compartment on JXi heaters, without needing to pull the full cabinet cover.
- A common companion failure on JXi heaters is the flame sensor, worth a quick visual check for corrosion while the burner tray is already open for the igniter swap.
How to confirm it’s the igniter before you buy
Before ordering, rule out the more common false alarms: a closed gas valve, a dirty flow switch reading no water flow, or a tripped high-limit switch will all also prevent ignition and cost nothing to fix. If the heater’s startup sequence gets all the way to the gas valve clicking open and the blower running but you don’t hear or see ignition happen (some heaters have a sight glass or you can hear the igniter’s characteristic hum), the igniter itself is the likely culprit. For a full cause-by-cause troubleshooting order, see our pool heater not heating guide — flow and gas supply issues are cheaper to rule out first, before spending on a part that isn’t the problem.
Always match the exact part number to your heater’s model and size, not just the brand — Raypak, Pentair, and Jandy all sell multiple heater sizes within one product line (Pentair MasterTemp 125 through 400, for example) that share a body style but sometimes use different igniter or gasket dimensions. The rating plate inside the burner compartment door lists the exact model number to cross-reference.
The bottom line
A failed igniter is one of the most common — and most DIY-friendly — pool heater repairs, and matching the exact OEM part to your heater’s brand and model line is the whole trick. The Raypak 007400F, Pentair 77707-0054, Hayward FDXLIGN1930, and Zodiac R0457502 each cover their respective manufacturer’s mainstream gas heater lines at roughly $50-$150 in parts, versus $150-$300+ for a technician visit to do the same swap. If your heater is still under warranty, check the installation and warranty terms first — a DIY igniter swap can void coverage on some brands within the warranty period.