White
Mechanical Sewing Machine

Model # 4075 Official White sewing machine

Here are the diagrams and repair parts for Official White 4075 sewing machine, as well as links to manuals and error code tables, if available.

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Model diagram and schematic

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ALL PARTS
Showing 10 of 267 parts  |

Needle Bar Crank Rod 1921002-321
#23

Presser bar diagram

Needle bar crank rod

Part #1921002-321

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

Feed Bar 1921004-512
#12

Upper shaft diagram

Feed bar

Part #1921004-512

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

Presser Foot 11932
#2

Machine body diagram

Presser foot

Part #11932

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

Cs Nut 40303
Cs nut

Part #40303

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

Washer 60410
#38

Needle bar diagram

Washer

Part #60410

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

Lighting Set Assembly 1921008-110
#7

Motor and foot controller diagram

Lighting set assembly

Part #1921008-110

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

Guide 1921002-341
#16

Needle bar diagram

Guide

Part #1921002-341

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

E-ring 40104-A
#23

Upper shaft diagram

E-ring

Part #40104-A

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

Service Manual 1921011-893

#NI

All parts diagram

Service manual

Part #1921011-893

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

Parts Manual 1921011-892

#NI

All parts diagram

Parts manual

Part #1921011-892

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

Most common symptoms to help you fix your sewing machines

Choose a symptom to see related sewing machine repairs.

Main causes: dirty shuttle race, improper thread routing, incorrect thread tension…

Main causes: dirty shuttle race, wrong thread tension, bad needle timing, damaged needle, using the wrong type of needle…

Main causes: thread bunched up in the shuttle race, bad needle timing, internal drive gear failures…

Main causes: machine needs lubrication, internal gear failure…

Main causes: problems with the feed dogs, setting stitch length to 0…

Main causes: lack of lubrication, lint buildup, worn drive belt, faulty drive motor…

Main causes: disengaged clutch, broken drive belt, internal drive gear failure…

Main causes: faulty foot pedal, locked drive gears, wiring failure, bad drive motor…

Main causes: power supply failure, bad power cord, faulty On/Off switch…

Most common repair guides to help fix your sewing machines

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

How to replace a sewing machine on/off switch

How to replace a sewing machine on/off switch

If the sewing machine is completely dead, replace the On/Off switch using these 6 steps.…

Repair difficulty
Time required
 30 minutes or less
How to replace a sewing machine drive belt

How to replace a sewing machine drive belt

You can replace a broken sewing machine drive belt in about 15 minutes. …

Repair difficulty
Time required
 15 minutes or less
How to replace a sewing machine drive motor

How to replace a sewing machine drive motor

If the drive motor on your sewing machine runs roughly or doesn't run at all, you can replace it in about 30 minutes usi…

Repair difficulty
Time required
 15 minutes or less

Effective articles & videos to help repair your sewing machines

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

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.…

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…