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Craftsman
Water Pump

Model # 3902518 Official Craftsman pump

Here are the diagrams and repair parts for Official Craftsman 3902518 pump, as well as links to manuals and error code tables, if available.

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Owner’s manual

Model diagram and schematic

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Showing 10 of 34 parts  |
Pump Body Gasket J20-18
#15

Shallow well jet pump diagram

Pump body gasket

Part #J20-18

Replaced by #J20-18C

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Manufacturer substitution
This part replaces J20-18. Substitute parts can look different from the original.
This item is not returnable
$9.99
| 
9% OFF Phone Price : $10.99
Back Order
Pump Shaft Seal 17351-0009
#2

Shallow well jet pump diagram

Pump shaft seal

Part #17351-0009

This item is not returnable
$8.89
| 
10% OFF Phone Price : $9.89
Back Order
Pump Pressure Switch Tube U37-673P
#17

Shallow well jet pump diagram

Pump pressure switch tube

Part #U37-673P

This item is not returnable
$19.98
| 
9% OFF Phone Price : $21.98
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Pump Shaft Seal U109-6A
#6

Shallow well jet pump diagram

Pump shaft seal

Part #U109-6A

Replaced by #U109-6B

?
Manufacturer substitution
This part replaces U109-6A. Substitute parts can look different from the original.
$106.69
| 
10% OFF Phone Price : $118.69
Back Order
Switch 2782
#27

Shallow well jet pump diagram

Switch

Part #2782

Replaced by #TC2153-P2

?
Manufacturer substitution
This part replaces 2782. Substitute parts can look different from the original.
$59.89
| 
9% OFF Phone Price : $65.89
Back Order
Pump Nozzle N34P-17
#13A

Shallow well jet pump diagram

Pump nozzle

Part #N34P-17

$28.33
In Stock
Pump Hose Fitting, 90-degree U111-212T
#18

Shallow well jet pump diagram

Pump hose fitting, 90-degree

Part #U111-212T

This item is not returnable
$27.69
| 
18% OFF Phone Price : $33.69
Back Order
Washer Pump U43-21SS
#9A

Shallow well jet pump diagram

Washer pump

Part #U43-21SS

This item is not returnable
$5.65
In Stock
Pump Rear Body L176-47P
#4

Shallow well jet pump diagram

Pump rear body

Part #L176-47P

$276.09
| 
$12.00 OFF Phone Price : $288.09
In Stock
Pump Impeller J105-40PE
#7

Shallow well jet pump diagram

Pump impeller

Part #J105-40PE

$139.59
| 
8% OFF Phone Price : $151.59
In Stock

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