Kenmore
Water Pump

Model # 3902631 Official Kenmore engine driven centrifugal pump

Here are the diagrams and repair parts for Official Kenmore 3902631 engine driven centrifugal pump, as well as links to manuals and error code tables, if available.

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Showing 10 of 29 parts  |

Rotary Seal U9-6
#18

Replacement parts diagram

Rotary seal

Part #U9-6

Replaced by #U109-6B

?
Manufacturer substitution
This part replaces U9-6. Substitute parts can look different from the original.
$106.69
10% OFF Phone Price : $118.69
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Hex Nut U36-106D
#13

Replacement parts diagram

Hex nut

Part #U36-106D

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

Flange C3-73
#7

Replacement parts diagram

Flange

Part #C3-73

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

Gasket C20-12
#9

Replacement parts diagram

Gasket

Part #C20-12

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

Hex Nut U36-36
#3

Replacement parts diagram

Hex nut

Part #U36-36

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

Handle C54-3
#23

Replacement parts diagram

Handle

Part #C54-3

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

Lock Washer U43-11C
Lock washer

Part #U43-11C

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

Gas Engine U277-10
#14

Replacement parts diagram

Gas engine

Part #U277-10

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

Washer Valve C43-12
#10

Replacement parts diagram

Washer valve

Part #C43-12

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

Base C4-9A
#25

Replacement parts diagram

Base

Part #C4-9A

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

Symptoms for gas walk-behind mowers

Choose a symptom to see related walk-behind mower repairs.

Main causes: damaged cutting blade, loose cutting blade, damaged flywheel key, engine needs tune up...

Main causes: uneven wheel height settings, damaged wheel, dull or damaged cutting blade...

Main causes: engine needs tune up, dirty or clogged carburetor, damaged flywheel key...

Main causes: drive control cable failure, worn or broken drive belt, bad transmission, broken drive wheel...

Main causes: stale gas, engine needs tune up, bad spark plug, dead battery, bad recoil starter, faulty safety switch, ba...

Main causes: dirty carburetor, bad spark plug, clogged air filter, engine choke problems, clogged gas cap vent...

Repair guides for gas walk-behind mowers

These step-by-step repair guides will help you safely fix what’s broken on your walk-behind lawn mower.

How to rebuild a lawn mower carburetor

How to rebuild a lawn mower carburetor

The carburetor mixes air with fuel to drive the piston. Rebuild the carburetor if it's clogged or leaks....

Repair difficulty
Time required
60 minutes or less
How to replace a lawn mower recoil starter on an OHV engine

How to replace a lawn mower recoil starter on an OHV engine

Replace the recoil starter if it doesn't move when you pull the starter rope....

Repair difficulty
Time required
15 minutes or less
How to replace a lawn mower wheel

How to replace a lawn mower wheel

Learn how replace a damaged wheel on a walk-behind lawn mower—it's a quick, easy fix....

Repair difficulty
Time required
15 minutes or less

Articles and videos for gas walk-behind mowers

Use the advice and tips in these articles and videos to get the most out of your walk-behind lawn mower.

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

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

Learn about all the convenient features on our Sears PartsDirect website that make your parts purchases easier....

Top questions about Sears and Sears PartsDirect

Top questions about Sears and Sears PartsDirect

Get answers to frequently asked questions about Sears and Sears PartsDirect....

Lawn mower won't start troubleshooting video: can't pull recoil pull cord

Lawn mower won't start troubleshooting video: can't pull recoil pull cord

A blade obstruction, bad recoil starter or locked-up engine can prevent the pull cord on your mower from working. See ho...