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Craftsman
Water Pump

Model # 390306050 Official Craftsman backup sump pump

Here are the diagrams and repair parts for Official Craftsman 390306050 backup sump pump, as well as links to manuals and error code tables, if available.

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

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Model diagram and schematic

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ALL PARTS
Showing 10 of 14 parts  |
Bushing U78-876P
#13

Replacement parts diagram

Bushing

Part #U78-876P

$13.62
In Stock
Tee U78-846P
#12

Replacement parts diagram

Tee

Part #U78-846P

$39.27
In Stock
Pipe Adapter PS78-3P
#11

Replacement parts diagram

Pipe adapter

Part #PS78-3P

$28.33
In Stock
Battery Case PS17-43
#7C

Replacement parts diagram

Battery case

Part #PS17-43

Replaced by #PS17-100

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Manufacturer substitution
This part replaces PS17-43. Substitute parts can look different from the original.
$65.27
In Stock
Delay Fuse U17-1149
#6

Replacement parts diagram

Delay fuse

Part #U17-1149

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

Complete Pump PS17-41
#2

Replacement parts diagram

Complete pump

Part #PS17-41

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

Merc Fl Siv PS217-5E
#1

Replacement parts diagram

Merc fl siv

Part #PS217-5E

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

Base Plate PS4-19P

#NI

All parts diagram

Base plate

Part #PS4-19P

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

Check Valve PS22-1
#9

Replacement parts diagram

Check valve

Part #PS22-1

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

O Manual F642-5191

#NI

All parts diagram

O manual

Part #F642-5191

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

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