A.O. Smith ESTT-40

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Directory: Catalog > Water Heaters > A.O. Smith > Parts

Use the chart to find the part you need to order. A diagram of the unit is below the chart to assist you in locating your part.
Click on the underlined link to go directly to the part's page for pricing and ordering.
For parts that are not underlined and do not have a link, please Contact Us for price and availability.
The manufacturer has changed some part numbers to a new part number, and we have referenced the new part number in the chart (if applicable). Please note that the manufacturer may change part numbers and availability at any time.
You can download and print the original PDF of the A.O. Smith parts list at the bottom of the page.

Item	Description	ESTT-40
1	Access Panel	4303171
2	Dip Tube	183900-024 (new # 9001598005)
3	Dip Tube Seal	184011-000 (new # 9002277015)
4	Drain Valve	042037-000 (new # 9002402015)
5***	Drain Valve Washer (17/32 x 13/64 x 1/8 Thick)	N/A
6	Lower Element	042286-022 (new # 9000095015)
6	Upper Element	042286-021 (new # 9000092015)
7	Element Gasket	0005300370
8	Primary Anode Rod	183523-016 (new # 9003944005)
9	T & P Relief Valve	076527-000 (new # 9000071015)
10	Terminal Cover with High Limit	183530-000 (new # 9003914015)
11	Thermostat Bracket	184608-000 (new # 9000309015)
12	Thermostat with High Limit	183534-000 (new # 9001954015)
13	Junction Box Bracket with CDT Hole	184659-000
14	Junction Box Cover	184660-000
15	Porcelain Top	1504940
16	Drain Access Door	3900550
17	Toe Panel	4300170
19	Terminal Cover	183529-000 (new # 9002276015)
20	Lower Thermostat	183532-000 (new # 9000507015)
NOTES: - The manufacturer may change part numbers and availability at any time. * If Applicable *** Available at most hardware stores

Download original AO Smith Parts List
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