Atwood GC6AA8 6-Gallon Pilot Gas/Electric Water Heater Parts
The GC6AA8 combines a pilot gas-burner system with electric-heating components. The original main drawing and a supplemental electrical reference distinguish the flame-heating parts from the 110V element, switch and thermostat.
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 Historical and superseded numbers are deliberately left unlinked; a product link does not establish fitment, availability, or compatibility with all revisions.
GC6AA8: Pilot burner, regulator and tank drawing
| 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 |
| 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 |
| 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 |
| NS | 93100 | 1 | Tank Cover Kit |
| NS | 91591 | 1 | Inner Tank |
| NS | 92610 | 1 | Rubber Grommet, Gas Line |
GC6AA8: Supplemental electrical heating list
The original service list includes additional references without a separate illustration.
| Ref. | Manufacturer # | Qty | Service component |
|---|---|---|---|
| 28 | 91116 | 1 | On/Off Switch & Junction Box |
| 29 | 91160 | 1 | Element Use 92249 |
| 29 | 92249 | 1 | Element & Gasket Kit - 110v (Screw In) - NLA |
| 30 | 91873 | 1 | T-stat & ECO 120 VAC |
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