When your Atwood Hydro Flame furnace fails to light or produces weak, intermittent ignition, a worn or cracked electrode is a common culprit. This factory-spec electrode and lead kit restores reliable spark ignition to a wide range of 8000-series and two-stage Hydro Flame furnaces -- no splicing, no improvising. Drop-in fitment with OEM-matching lead lengths means you are back to warm air fast.
The Atwood 34570 Electrode with Lead Kit is the correct direct replacement for 8000-series Hydro Flame furnaces that do not have an exterior access door. It includes both the ignition electrode and the pre-wired lead harness, so you replace the entire ignition circuit path from electrode tip to control board connection -- not just the tip.
This kit is also catalogued as NBK Parts number 20544, making it easy to cross-reference when shopping aftermarket supply sources. It replaces the earlier Atwood OEM part number 37057.
Engineered to match original Atwood specifications. Plugs in without cutting, splicing, or adapter fittings.
Includes both the black ignition lead (8 inches) and the red wiring harness with end connectors (16 inches) -- everything needed for the swap.
Fits eleven distinct Hydro Flame furnace models spanning the 8000-IV series, two-stage models, and DC/AC 8900-series units.
At just 0.15 lbs, this is a quick add to any spare-parts kit for full-timers or extended travelers.
Over time, the ignition electrode tip wears, cracks, or becomes carbon-fouled, while the lead wire insulation can harden, crack, or develop high-resistance connections from repeated heat cycling. Replacing both together eliminates two common failure points in a single service -- and ensures the high-voltage spark path has full insulation integrity from tip to connector.
This electrode kit is confirmed compatible with the following Atwood Hydro Flame furnace models:
Before beginning, switch off your RV furnace at the thermostat and disconnect shore power or turn off the battery disconnect. Allow the furnace to cool completely if it has been running. The electrode is mounted inside the burner chamber -- consult your furnace model's service layout for access. Disconnect the old lead at the control board connector, remove the electrode, install the new assembly, reconnect the harness, and verify the electrode gap is set to specification for your furnace model (typically 0.125 inches / 1/8 inch on Hydro Flame burner assemblies).