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Rheem
Gas Water Heater

Model # 21V40-5 Official Rheem 40-gallon efficient v gas water heater

Here are the diagrams and repair parts for Official Rheem 21V40-5 40-gallon efficient v gas water heater, as well as links to manuals and error code tables, if available.

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  • In the search box below, enter all or part of the part number or the part’s name.

Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

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Error Codes

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ALL PARTS
Showing 10 of 19 parts  |
Anode Rod AS-35693A-C
#13

Replacement parts diagram

Anode rod

Part #AS-35693A-C

Replaced by #SP11309C

?
Manufacturer substitution
This part replaces AS-35693A-C. Substitute parts can look different from the original.
$67.96
In Stock
Dip Tube AS-21064-Q
#15

Replacement parts diagram

Dip tube

Part #AS-21064-Q

Replaced by #SP11248R

?
Manufacturer substitution
This part replaces AS-21064-Q. Substitute parts can look different from the original.
$24.44
In Stock
Orifice AP-7492-HH
#5

Replacement parts diagram

Orifice

Part #AP-7492-HH

Replaced by #AP7492HH-12

?
Manufacturer substitution
This part replaces AP-7492-HH. Substitute parts can look different from the original.
$9.63
In Stock
Burner AP-8980-B
#7

Replacement parts diagram

Burner

Part #AP-8980-B

Replaced by #SP8980C

?
Manufacturer substitution
This part replaces AP-8980-B. Substitute parts can look different from the original.
$37.60
In Stock
Thermostat AP-8555-B
#1

Replacement parts diagram

Thermostat

Part #AP-8555-B

Replaced by #SP20164

?
Manufacturer substitution
This part replaces AP-8555-B. Substitute parts can look different from the original.
$166.39 | 
7% OFF Phone Price : $178.39
In Stock
Door AS-29501
#11

Replacement parts diagram

Door

Part #AS-29501

Replaced by #AS29501-3

?
Manufacturer substitution
This part replaces AS-29501. Substitute parts can look different from the original.
This item is not returnable
$24.09 | 
20% OFF Phone Price : $30.09
In Stock
Drain Valve AP-10424-B
#9

Replacement parts diagram

Drain valve

Part #AP-10424-B

Replaced by #100108605

?
Manufacturer substitution
This part replaces AP-10424-B. Substitute parts can look different from the original.
$27.78
In Stock
Shroud Valve AP-2480
#8

Replacement parts diagram

Shroud valve

Part #AP-2480

The manufacturer no longer makes this part, and there's no substitute part

Hanger AS-20622-C
#12A

Replacement parts diagram

Hanger

Part #AS-20622-C

The manufacturer no longer makes this part, and there's no substitute part

Owner's Manual #f642-2491 AP-10821

#NI

All parts diagram

Owner's manual #f642-2491

Part #AP-10821

The manufacturer no longer makes this part, and there's no substitute part

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