Direct OEM Replacement

RV Water Heater Heating Element 520900

120V · 1440W · 1″ NPT (National Pipe Thread) · 316 Stainless Steel — fits Suburban SW Series & Atwood/Dometic G Series

Get your hot water back in minutes. The 520900 is a drop-in replacement for Suburban SW-series and Atwood/Dometic G-series RV water heaters. If your shower runs cold, the tank is slow to heat, or the breaker trips on electric mode, a worn element is almost always the culprit — swap this in and you’re heating water again the same day. No plumbing or wiring changes needed.

At a Glance

• Voltage120V AC (works on 110–120V)
• Power1440W (12A draw)
• Thread1″ NPT (screw-in)
• Immersion Length21 cm / 8.3″
• Wrench Size1-1/2″
• Material316 Stainless Steel

Key Features

• Fast recovery — 1440W heats a 6-gallon tank quickly, recovering roughly 6 gallons per hour.
• Direct drop-in fit — replaces Suburban 520900 / 520789 / 232794 and Atwood/Dometic 92249 / 91160 / 92097.
• Hard-water resistant — 316 stainless steel shrugs off scale and corrosion for a longer service life.
• Tool-friendly install — standard 1″ NPT thread and 1-1/2″ hex head swaps out with a standard element wrench in minutes.
• Built for every RV — fits Class A/B/C motorhomes, travel trailers, fifth wheels, and camper vans.
• Safety first — always disconnect 120V shore power and drain the tank before installing.

Signs Your Element Needs Replacing

• Hot water runs out fast, or the tank never gets fully hot
• Electric mode trips the circuit breaker
• Popping or hissing from the tank while heating
• Visible corrosion, cracks, or scale buildup on the old element

Compatibility

Suburban Water Heaters (SW Series)

SW4, SW6, SW10, SW12, SW16, SW6D, SW6DE, SW6DEC, SW6DEL, SW6DELC, SW6DEM, SW6DFA, SW6DRA, SW6DERA, SW10DE, SW12DE, SW16DE

Atwood / Dometic Water Heaters (G Series)

G6A-4E, G6A-6E, G6A-7E, G6A-8E, GC6A-7E, GC6AA-9E, GC6AA-10E, GC10A-4E, GH6-3E, GCH6-4E, GCH6-6E, GCH6-7E, GCH6A-6E, GCH6A-10E, GCH10A-4E

Fits vehicles

Motorhomes (Class A, B & C), Travel Trailers, Fifth Wheels, Camper Vans, Truck Campers, Teardrop Trailers

OEM Part Number Cross-Reference

Suburban — 520900 (current) · 520789 (superseded) · 232794

Atwood / Dometic — 92249 · 91160 · 92097

Always verify the model number on your water heater’s nameplate before ordering. When in doubt, send us a photo of the nameplate and we’ll confirm the fit.

Specifications

Safety Notes

• Always disconnect 120V shore power and drain the tank before installation.
• Verify the model number on your water heater nameplate before ordering.
• This is a 120V AC element — it runs on shore power or a generator, not on 12V battery power.

Frequently Asked Questions