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Model # 4X90HU Official MTD engine

Here are the diagrams and repair parts for Official MTD 4X90HU engine, as well as links to manuals and error code tables, if available.

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Owner’s manual

Model diagram and schematic

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Showing 10 of 147 parts  |
Lawn & Garden Equipment Engine Spark Plug 951-10292
#153

Cylinder head diagram

Lawn & garden equipment engine spark plug

Part #951-10292

Replaced by #951-10292A

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Manufacturer substitution
This part replaces 951-10292. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$5.88 | 
63% OFF MSRP : $16.00
In Stock
Lawn & Garden Equipment Engine Carburetor 993-00170
#73

Carburetor assembly diagram

Lawn & garden equipment engine carburetor

Part #993-00170

Replaced by #993-00170A

?
Manufacturer substitution
This part replaces 993-00170. Substitute parts can look different from the original.
$89.60 | 
25% OFF MSRP : $120.00
In Stock
Lawn & Garden Equipment Engine Electric Starter 925-06300
#109

Starter assembly diagram

Lawn & garden equipment engine electric starter

Part #925-06300

$244.55 | 
18% OFF MSRP : $300.00
In Stock
Lawn & Garden Equipment Engine Flywheel Key 951-10307
#45

Crankshaft/crankcase cover diagram

Lawn & garden equipment engine flywheel key

Part #951-10307

Replaced by #751P10307A

?
Manufacturer substitution
This part replaces 951-10307. Substitute parts can look different from the original.
This item is not returnable
$3.22 | 
24% OFF Phone Price : $4.22
In Stock
Lawn & Garden Equipment Engine Throttle Control Bracket 951-05249
#39

Crankcase diagram

Lawn & garden equipment engine throttle control bracket

Part #951-05249

$47.43 | 
10% OFF Phone Price : $52.43
In Stock
Lawn & Garden Equipment Engine Mounting Screw 710-04915
Lawn & garden equipment engine mounting screw

Part #710-04915

This item is not returnable
$6.75 | 
13% OFF Phone Price : $7.75
In Stock
Lawn & Garden Equipment Engine Air Filter Base Gasket 921-04745
#74

Air intake diagram

Lawn & garden equipment engine air filter base gasket

Part #921-04745

This item is not returnable
$11.29
In Stock
Lawn & Garden Equipment Engine Carburetor Gasket 951-14947
#72

Carburetor assembly diagram

Lawn & garden equipment engine carburetor gasket

Part #951-14947

This item is not returnable
$12.51 | 
14% OFF Phone Price : $14.51
In Stock
Gasket-crank 921-04741
#43

Crankcase diagram

Gasket-crank

Part #921-04741

This item is not returnable
$26.23
In Stock
Lawn & Garden Equipment Engine Cylinder Head Gasket 921-04743
Lawn & garden equipment engine cylinder head gasket

Part #921-04743

This item is not returnable
$25.44 | 
16% OFF Phone Price : $30.44
In Stock

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