MTD
Lawn & Garden Engine

Model # 270-SU Official MTD engine

Here are the diagrams and repair parts for Official MTD 270-SU engine, as well as links to manuals and error code tables, if available.

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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 134 parts  |

Lawn & Garden Equipment Engine Spark Plug 951-10292
#18

Engine 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
15% OFF Phone Price : $6.88
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Carburetor Gasket 751-11569A
#32

Engine diagram

Carburetor gasket

Part #751-11569A

Replaced by #751P12005A

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Manufacturer substitution
This part replaces 751-11569A. Substitute parts can look different from the original.
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$7.53
12% OFF Phone Price : $8.53
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Snowblower Recoil Starter Assembly 951-10658
#95

Engine diagram

Snowblower recoil starter assembly

Part #951-10658

Replaced by #951-14151

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Manufacturer substitution
This part replaces 951-10658. Substitute parts can look different from the original.
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$80.37
7% OFF Phone Price : $86.37
In Stock
Lawn & Garden Equipment Engine Carburetor Gasket 951-11567
#30

Engine diagram

Lawn & garden equipment engine carburetor gasket

Part #951-11567

Replaced by #751P11567B

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Manufacturer substitution
This part replaces 951-11567. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$3.07
25% OFF Phone Price : $4.07
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Lawn & Garden Equipment Engine Carburetor Float Bowl Gasket 951-11589
#140

Engine diagram

Lawn & garden equipment engine carburetor float bowl gasket

Part #951-11589

Replaced by #951-11589A

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Manufacturer substitution
This part replaces 951-11589. Substitute parts can look different from the original.
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$9.31
10% OFF Phone Price : $10.31
In Stock
Carburetor Plate 751-11897
#34

Engine diagram

Carburetor plate

Part #751-11897

Replaced by #951-11897

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Manufacturer substitution
This part replaces 751-11897. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$6.20
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Key 731-05632
#96

Engine diagram

Key

Part #731-05632

Replaced by #951-10630

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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
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Lawn & Garden Equipment Engine Carburetor Primer Bulb (replaces 951-10639) 951-10639A
#130

Engine diagram

Lawn & garden equipment engine carburetor primer bulb (replaces 951-10639)

Part #951-10639A

$26.71
18% OFF Phone Price : $32.71
In Stock
Lawn & Garden Equipment Engine Carburetor Float Bowl Gasket 951-11349
#141

Engine diagram

Lawn & garden equipment engine carburetor float bowl gasket

Part #951-11349

Replaced by #951-11349A

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Manufacturer substitution
This part replaces 951-11349. Substitute parts can look different from the original.
This item is not returnable
$5.64
15% OFF Phone Price : $6.64
In Stock
Snowblower Ignition Switch (replaces 751-10637, 925-04031a) 951-10637
#40

Engine diagram

Snowblower ignition switch (replaces 751-10637, 925-04031a)

Part #951-10637

This item is not returnable
$18.67
10% OFF Phone Price : $20.67
In Stock

Symptoms for gas snowblowers

Choose a symptom to see related snowblower repairs.

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

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

Main causes: dirty carburetor, stale fuel...

Main causes: punctured tire, damaged rim...

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

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

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

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

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

Repair guides for gas snowblowers

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

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....

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....

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....

Repair difficulty
Time required
15 minutes or less

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

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

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Top questions about Sears and Sears PartsDirect

Get answers to frequently asked questions about Sears and Sears PartsDirect....

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....