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MTD
Lawn & Garden Engine

Model # Z478-SU Official MTD engine

Here are the diagrams and repair parts for Official MTD Z478-SU engine, as well as links to manuals and error code tables, if available.

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  • 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”.

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Model diagram and schematic

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ALL PARTS
Showing 10 of 111 parts  |
Lawn & Garden Equipment Engine Spark Plug 951-10292
#45

Engine diagram

Lawn & garden equipment engine spark plug

Part #951-10292

Replaced by #951-10292A

?
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 Fuel Filter (replaces 751-10651) 951-10651

#NI01

All parts diagram

Lawn & garden equipment engine fuel filter (replaces 751-10651)

Part #951-10651

BEST SELLER
$19.98 | 
23% OFF MSRP : $26.00
In Stock
Key 731-05632

#NI02

All parts diagram

Key

Part #731-05632

Replaced by #951-10630

?
Manufacturer substitution
This part replaces 731-05632. Substitute parts can look different from the original.
BEST SELLER
$8.44 | 
11% OFF Phone Price : $9.44
In Stock
Primer 951-10639
#126

Engine diagram

Primer

Part #951-10639

Replaced by #951-10639A

?
Manufacturer substitution
This part replaces 951-10639. Substitute parts can look different from the original.
BEST SELLER
$26.71 | 
16% OFF Phone Price : $31.71
In Stock
Lawn & Garden Equipment Engine Carburetor Float Bowl Gasket 951-11349
#132

Engine 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 Mower Fuel Cap 951-10649
#100

Engine diagram

Lawn mower fuel cap

Part #951-10649

Replaced by #951-12533

?
Manufacturer substitution
This part replaces 951-10649. Substitute parts can look different from the original.
This item is not returnable
$31.39 | 
14% OFF Phone Price : $36.39
In Stock
Snowblower Carburetor Gasket (replaces 751-11223) 951-11223
#66

Engine diagram

Snowblower carburetor gasket (replaces 751-11223)

Part #951-11223

This item is not returnable
$8.09 | 
11% OFF Phone Price : $9.09
In Stock
Lawn & Garden Equipment Engine Fuel Bowl Mounting Bolt 710-04945
#138

Engine diagram

Lawn & garden equipment engine fuel bowl mounting bolt

Part #710-04945

This item is not returnable
$6.46 | 
13% OFF Phone Price : $7.46
In Stock
Snowblower Recoil Starter Assembly (replaces 751-11208) 951-11208
#31

Engine diagram

Snowblower recoil starter assembly (replaces 751-11208)

Part #951-11208

$88.72 | 
26% OFF MSRP : $120.00
In Stock
Lawn & Garden Equipment Engine Flywheel Key 951-10307
#123

Engine 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

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