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

  • Keep track of the models you own in your profile

    Sign in or Register to view or add models

Schedule a repair
MTD
Lawn & Garden Engine

Model # 4P90JUA Official MTD engine

Here are the diagrams and repair parts for Official MTD 4P90JUA engine, 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 178 parts  |
Carburetor 951-12823
#131

Carburetor diagram

Carburetor

Part #951-12823

Replaced by #951-12771A

?
Manufacturer substitution
This part replaces 951-12823. Substitute parts can look different from the original.
BEST SELLER
$119.14 | 
21% OFF MSRP : $150.00
In Stock
Lawn & Garden Equipment Engine Oil Filter 951-12690
#114

Crankshaft/crankcase diagram

Lawn & garden equipment engine oil filter

Part #951-12690

Replaced by #490-201-Y010

?
Manufacturer substitution
This part replaces 951-12690. Substitute parts can look different from the original.
BEST SELLER
$15.52 | 
43% OFF MSRP : $27.00
In Stock
Lawn & Garden Equipment Engine Pre-filter 951-12256
#124

Air filter diagram

Lawn & garden equipment engine pre-filter

Part #951-12256

BEST SELLER
$8.33 | 
11% OFF Phone Price : $9.33
In Stock
Lawn & Garden Equipment Engine Ignition Coil 951-12220
#39

Flywheel/coil diagram

Lawn & garden equipment engine ignition coil

Part #951-12220

BEST SELLER
$76.71 | 
30% OFF MSRP : $110.00
In Stock
Lawn & Garden Equipment Engine Carburetor Float Bowl Gasket 951-11349
#CC

Carburetor diagram

Lawn & garden equipment engine carburetor float bowl gasket

Part #951-11349

Replaced by #951-11349A

?
Manufacturer substitution
This part replaces 951-11349. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$5.24 | 
22% OFF MSRP : $6.70
In Stock
Lawn Tractor Engine Manifold Gasket 951-12258
#130

Air filter diagram

Lawn tractor engine manifold gasket

Part #951-12258

Replaced by #951-12258A

?
Manufacturer substitution
This part replaces 951-12258. Substitute parts can look different from the original.
This item is not returnable
$6.35 | 
14% OFF Phone Price : $7.35
In Stock
Lawn & Garden Equipment Engine Carburetor Insulator Gasket 951-12263
#138

Carburetor diagram

Lawn & garden equipment engine carburetor insulator gasket

Part #951-12263

This item is not returnable
$6.35 | 
14% OFF Phone Price : $7.35
In Stock
Lawn & Garden Equipment Engine Voltage Regulator 951-12242
#85

Crankshaft/crankcase diagram

Lawn & garden equipment engine voltage regulator

Part #951-12242

$63.45 | 
7% OFF Phone Price : $68.45
In Stock
Lawn & Garden Equipment Engine Starter Motor 951-12207
#9

Starter diagram

Lawn & garden equipment engine starter motor

Part #951-12207

Replaced by #751P12207A

?
Manufacturer substitution
This part replaces 951-12207. Substitute parts can look different from the original.
$223.52 | 
$10.00 OFF Phone Price : $233.52
In Stock
Lawn & Garden Equipment Engine Stator 951-12224
#44

Flywheel/coil diagram

Lawn & garden equipment engine stator

Part #951-12224

$83.26 | 
24% OFF MSRP : $110.00
In Stock

RECOMMENDED MAINTENANCE PARTS AND ACCESSORIES

Symptoms for electric ranges

Why doesn't my electric range's surface element heat properly?

Main causes: faulty surface element, burner control switch failure, temperature limiter not working properly, loose wiri…

Read more

Should I replace a damaged glass cooktop?

Main causes: impact from dropping an item on the glass surface, ceramic glass surface flaw, surface element temperature …

Read more

Repair guides for electric ranges

How to replace a range hidden bake element

How to replace a range hidden bake element

These step-by-step instructions guide you through replacing the oven hidden bake element in an electric range.…

Read more
Repair difficulty
Time required
 30 minutes or less
How to replace an electric range oven door outer glass panel

How to replace an electric range oven door outer glass panel

Learn how to replace a damaged outer window panel on your oven door with these step-by-step instructions. …

Read more
Repair difficulty
Time required
 45 minutes or less
How to replace a range glass cooktop

How to replace a range glass cooktop

These step-by-step instructions explain how to replace a damaged ceramic glass cooktop on an electric range. …

Read more
Repair difficulty
Time required
 45 minutes or less

Effective articles & videos to help repair your lawn & garden engines

View all
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.…

Read more
What are the main components of a lawn mower?

What are the main components of a lawn mower?

Learn about the main parts of a lawn mower and when to replace parts.…

Read more

Parts & More