Kenmore
Water Pump

Model # 3902 Official Kenmore plastic convertible jet pump

Here are the diagrams and repair parts for Official Kenmore 3902 plastic convertible jet 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 54 parts  |

Pump Body Gasket J20-18

#NI

All parts 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
Shaft Seal U9-93SS
#7B

Replacement parts diagram

Shaft seal

Part #U9-93SS

Replaced by #U109-6B

?
Manufacturer substitution
This part replaces U9-93SS. Substitute parts can look different from the original.
$106.69
10% OFF Phone Price : $118.69
Back Order
Tube U37-211P
#18

Replacement parts diagram

Tube

Part #U37-211P

Replaced by #U37-673P

?
Manufacturer substitution
This part replaces U37-211P. Substitute parts can look different from the original.
This item is not returnable
$19.98
9% OFF Phone Price : $21.98
Back Order
Pump Nozzle N34P-17

#NI

All parts diagram

Pump nozzle

Part #N34P-17

In Stock
Pump Diffuser J1-40P
#7G

Replacement parts diagram

Pump diffuser

Part #J1-40P

$170.60
7% OFF Phone Price : $182.60
Back Order
Complete Fitting U111-86
#19

Replacement parts diagram

Complete fitting

Part #U111-86

Replaced by #U111-212T

?
Manufacturer substitution
This part replaces U111-86. Substitute parts can look different from the original.
This item is not returnable
$27.69
18% OFF Phone Price : $33.69
Back Order
Regulator L162-10P
#5

Replacement parts diagram

Regulator

Part #L162-10P

Replaced by #L162-10PS

?
Manufacturer substitution
This part replaces L162-10P. Substitute parts can look different from the original.
$63.99
9% OFF Phone Price : $69.99
In Stock
Pump Impeller J105-42PT
#7C

Replacement parts diagram

Pump impeller

Part #J105-42PT

$151.89
7% OFF Phone Price : $163.89
In Stock
Screw U30-738SS

#NI

All parts diagram

Screw

Part #U30-738SS

In Stock
Venturi N32P-65

#NI

All parts diagram

Venturi

Part #N32P-65

In Stock

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Main causes: missing safety key, bad control console, wiring failure, faulty motor control board, bad drive motor…

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Repair guides for treadmills

These step-by-step repair guides will help you safely fix what’s broken on your treadmill.

How to replace a treadmill drive motor

How to replace a treadmill drive motor

A defective drive motor won't run when activated by the motor controller. Replace the treadmill drive motor if it doesn'…

Repair difficulty
Time required
 15 minutes or less
How to replace a treadmill walking belt

How to replace a treadmill walking belt

A worn walking belt will begin to slow down during use. If your treadmill walking belt is worn out, replace it using the…

Repair difficulty
Time required
 45 minutes or less
How to replace a treadmill walking board

How to replace a treadmill walking board

A worn-out walking board creates friction with the walking belt and causes the belt to slow down during use. Replace the…

Repair difficulty
Time required
 30 minutes or less

Articles and videos for treadmills

Use the advice and tips in these articles and videos to get the most out of your treadmill.

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How to enjoy all the online benefits we offer on our Sears PartsDirect website

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How to use a multimeter to test electrical parts video

How to use a multimeter to test electrical parts video

Learn how to use a multimeter to check for wiring problems in an appliance that's not working…