Atwood GC6A3 Gas/Electric RV Water Heater Exploded Parts
The GC6A3 six-gallon water heater retains a gas pilot arrangement alongside a separate 110V electric heating assembly. The diagrams distinguish the cabinet and burner hardware from the electric element mounting and temperature controls.
Parts pictured in this guide
Select an image for product details, or jump to the numbered diagrams and parts lists. Match the complete appliance model and part number before ordering.
Dometic 91604 Water Heater Pressure Relief Valve, 150 PSI, 1/2 InchPart 91604 · 1/2-inch 150-psi relief fitting. Compare the original thread size.
Dometic 91386 Atwood RV Water Heater Access Door, 6 Gallon, Arctic White SteelPart 91386 · Six-gallon Arctic White access door. Check the mounting and finish.
Dometic 91873 110VAC Water Heater Thermostat & ECO KitPart 91873 · 110–120V thermostat/ECO service kit from the electric components list.
Reference guide: The original model-specific drawing numbers are shown below. Linked part numbers lead to a NewRVParts product with the same Atwood manufacturer number. Historical and superseded numbers are deliberately left unlinked; a product link does not establish fitment, availability, or compatibility with all revisions.
GC6A3: Main gas and tank components
| Ref. | Manufacturer # | Qty | Service component |
|---|---|---|---|
| 1 | 90960 | 1 | Flue Box Assembly |
| 2 | 92640 | 1 | Grille Only, New Style Door |
| 3 | 91602 | 1 | Robertshaw T-stat, 3/8 Npt X 3/8 Npt |
| 4 | 91601 | 1 | White Rodgers T-stat Use 91602 |
| 5 | 91347 | 1 | Elbow 1/4 Npt X 3/8 Flair |
| 6 | 92615 | 1 | Main Burner Assy |
| 7 | 92742 | 1 | Main Burner Orifice Use Dometic Part# 92743 |
| 8 | 92741 | 1 | Elbow, Main Burner Orifice |
| 9 | 92616 | 1 | Pilot Assembly Use 91603 |
| 9 | 91603 | 1 | Jade Pilot Assy. |
| 10 | 91858 | 1 | Door Hardware Kit |
| 11 | 91502 | 1 | Door, White - 6 Gal. Use 91386 |
| 11 | 91386 | 1 | Access Door 6 Gal. Pw |
| 11 | 91514 | 1 | Door, Col. White - 6 Gal. |
| 12 | 91928 | 1 | Set Of 4 Corner Brackets |
| 13 | 91561 | 1 | Plug,Drain 1/2 Use 91857 |
| 13 | 91857 | 1 | Drain Plug, 1/2 In. 2 Pack |
| 14 | 92698 | 1 | Petcock Drain Valve 1/8 In |
| 18 | 96010 | 1 | Ring & Gasket |
| 19 | 91796 | 1 | Pan Drawn |
| 20 | 91604 | 1 | Pressure Relief Valve, 1/2 Npt 150 Psi |
| 21 | 91240 | 1 | Styrofoam Tank Cover - Top Use 92220 |
| 21 | 92220 | 1 | Tank Cover- Bottom Use 93100 |
| 21 | 91241 | 1 | Styrofoam Tank Cover - Bottom Use 92221 |
| 21 | 92221 | 1 | Tank Cover-Top Use 93100 |
| 21 | 93100 | 1 | Tank Cover Kit |
| NS | 91285 | 1 | Jade Orifice Fits #91603 Pilot |
| NS | 91410 | 1 | Inner Tank Use 91591 |
| NS | 91591 | 1 | Inner Tank |
| NS | 92610 | 1 | Rubber Grommet, Gas Line |
| NS | 92973 | 1 | Inverted Flare Adapter |
GC6A3: Bolt-on electric heater references
| Ref. | Manufacturer # | Qty | Service component |
|---|---|---|---|
| 23 | 91097 | 1 | Element,Heating 110v Use 91580 |
| 23 | 93089 | 1 | Element,Heating Use 91580 |
| 23 | 91580 | 1 | 110 VAC Bolt-On Element - 1500w |
| 26 | 91092 | 1 | 110 VAC On/Off Switch 6 Gal |
| 27 | 91873 | 1 | T-stat & ECO 120 VAC |
Sobre NewRVParts
NewRVParts es un proveedor exclusivamente en línea de piezas y accesorios nuevos para vehículos recreativos (RV), equipos para autocaravanas, piezas para remolques y enganches, accesorios para camiones y productos marinos. Atendemos a clientes en todo Canadá y Estados Unidos, con productos de fabricantes de confianza enviados a través de una amplia red de distribución norteamericana. Compre en línea repuestos, equipos y accesorios que se entregan directamente en su puerta.
Comprar piezas de RV