Can’t find your part?   Contact us:
+1-309-603-4777
Sears Parts Direct
Tips to find your model number
Orders

  • Keep track of the models you own in your profile

    Sign in or Register to view or add models

Schedule a repair
Kenmore
Water Pump

Model # 390255401 Official Kenmore high-pressure booster pump

Here are the diagrams and repair parts for Official Kenmore 390255401 high-pressure booster pump, as well as links to manuals and error code tables, if available.

There are a couple of ways to find the part or diagram you need:

  • Click a diagram to see the parts shown on that diagram.
  • 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”.

We encourage you to save the model to your profile, so it’s easy to access parts and manuals for your appliance whenever you log in.

For DIY troubleshooting advice and repair guides, visit our repair help section.

Model diagram and schematic

SEARCH WITHIN THIS MODEL

?

This is the number corresponding to the part on the diagram / schematic

Search
ALL PARTS
Showing 10 of 29 parts  |
Sta-rite Seal Plate N3-8
#4

Replacement parts diagram

Sta-rite seal plate

Part #N3-8

$45.82
In Stock
Craftsman Handle C54-21
#2

Replacement parts diagram

Craftsman handle

Part #C54-21

$10.70
In Stock
Sta-rite Gasket N20-26
#6

Replacement parts diagram

Sta-rite gasket

Part #N20-26

$13.05
In Stock
Craftsman Pump Shaft Seal U109-118
#5

Replacement parts diagram

Craftsman pump shaft seal

Part #U109-118

$191.99 | 
6% OFF Phone Price : $203.99
In Stock
Sears O-ring U9-49
#12

Replacement parts diagram

Sears o-ring

Part #U9-49

This item is not returnable
$5.23
In Stock
Slinger N69-1
#3

Replacement parts diagram

Slinger

Part #N69-1

Replaced by #17351-0009

?
Manufacturer substitution
This part replaces N69-1. Substitute parts can look different from the original.
This item is not returnable
$8.89 | 
10% OFF Phone Price : $9.89
Back Order
Motor 1/2 Hp J218-590
#1

Replacement parts diagram

Motor 1/2 hp

Part #J218-590

Replaced by #J218-590PKG

?
Manufacturer substitution
This part replaces J218-590. Substitute parts can look different from the original.
$551.39 | 
$12.00 OFF Phone Price : $563.39
In Stock
Cord Plug U17-402
#23

Replacement parts diagram

Cord plug

Part #U17-402

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

Connector U71-7
#24

Replacement parts diagram

Connector

Part #U71-7

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

Cap Screw U30-573SSN
#16

Replacement parts diagram

Cap screw

Part #U30-573SSN

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

Symptoms for gas snowblowers

Choose a symptom to see related snowblower repairs.

View all

How do I tune up my snowblower?

Things to do: replace the spark plug, change the oil, rebuild the carburetor, adjust valve lash, adjust or replace the b…

Read more

Why won't my snowblower throw snow far enough?

Main causes: clogged chute, damaged auger blades, broken shear pins, worn auger belt, damaged gear case, engine problems…

Read more

Why does my snowblower stop running after a few seconds?

Main causes: dirty carburetor, stale fuel…

Read more

What should I do about a damaged snowblower tire?

Main causes: punctured tire, damaged rim…

Read more

Why does my snowblower engine run rough?

Main causes: dirty carburetor, clogged fuel filter, dirty spark plug, incorrect valve lash, leaky engine gaskets…

Read more

Why won't my snowblower start?

Main causes: stale gas, clogged carburetor, clogged or broken fuel line, dirty spark plug, bad rewind starter, incorrect…

Read more

Why doesn't my snowblower self propel?

Main causes: loose drive clutch cable, damaged drive clutch cable, worn friction disc, scraper blade scraping the ground…

Read more

Why won't my snowblower chute turn?

Main causes: snow build-up in chute, chute drive mechanism failure, bad chute control assembly…

Read more

Why won't my snowblower clear snow well?

Main causes: clogged chute, snow build-up in auger housing, broken auger shear pins, auger drive belt needs adjustment, …

Read more

Repair guides for gas snowblowers

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

View all
How to adjust snowblower engine valve lash

How to adjust snowblower engine valve lash

Adjust the engine valve lash on your snowblower to keep the engine starting and running smoothly.…

Read more
Repair difficulty
Time required
 15 minutes or less
How to adjust snowblower skid shoes

How to adjust snowblower skid shoes

To prevent snowblower auger and shave plate damage, adjust the skid shoes regularly to keep the shave plate ¼-inch high.…

Read more
Repair difficulty
Time required
 15 minutes or less
How to replace a snowblower shave plate

How to replace a snowblower shave plate

Follow the 7 easy steps in this repair guide/video to replace a worn out shave plate on your snowblower.…

Read more
Repair difficulty
Time required
 15 minutes or less

Articles and videos for gas snowblowers

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

View all
How to tune up a snowblower video

How to tune up a snowblower video

Get an overview of the main steps in a snowblower tune-up and click to videos with more details.…

Read more
Start-of-winter snowblower care

Start-of-winter snowblower care

Get your snowblower ready for winter before winter arrives, so you don't have to mess with it while snow piles up.…

Read more
How to store a snowblower

How to store a snowblower

Protect your snowblower's engine and body by preparing it for after-season storage.…

Read more

Parts & More