MTD
Lawn & Garden Engine

Model # 170-SU Official MTD engine

Here are the diagrams and repair parts for Official MTD 170-SU 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 137 parts  |

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

Cylinder head 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
$6.47
60% OFF MSRP : $16.00
In Stock
Lawn & Garden Equipment Engine Recoil Starter And Housing Assembly (replaces 751-14141, 751-14151, 951-10658) 951-14151
#91

Flywheel & blower housing diagram

Lawn & garden equipment engine recoil starter and housing assembly (replaces 751-14141, 751-14151, 951-10658)

Part #951-14151

BEST SELLER
$74.75
32% OFF MSRP : $110.00
In Stock
Lawn & Garden Equipment Engine Carburetor Gasket 951-11897
#32

Carburetor diagram

Lawn & garden equipment engine carburetor gasket

Part #951-11897

BEST SELLER
This item is not returnable
$6.20
14% OFF Phone Price : $7.20
In Stock
Snowblower Throttle Return Spring 951-10664
#96

Fuel tank & mounting diagram

Snowblower throttle return spring

Part #951-10664

Replaced by #751P10664A

?
Manufacturer substitution
This part replaces 951-10664. Substitute parts can look different from the original.
This item is not returnable
$3.57
22% OFF Phone Price : $4.57
In Stock
Snowblower Oil Drain Plug 710-04906
#76

Crankcase diagram

Snowblower oil drain plug

Part #710-04906

This item is not returnable
$10.26
16% OFF Phone Price : $12.26
In Stock
Lawn & Garden Equipment Fuel Line Kit (replaces 751-10650, 951-10795) 951-10650
#103

Fuel tank & mounting diagram

Lawn & garden equipment fuel line kit (replaces 751-10650, 951-10795)

Part #951-10650

$37.41
12% OFF Phone Price : $42.41
In Stock
Throttle Knob 951-10757
#37

Engine shroud diagram

Throttle knob

Part #951-10757

Replaced by #951-11224

?
Manufacturer substitution
This part replaces 951-10757. Substitute parts can look different from the original.
This item is not returnable
$12.09
14% OFF Phone Price : $14.09
In Stock
Snowblower Muffler Gasket 951-11289
#21

Muffler diagram

Snowblower muffler gasket

Part #951-11289

Replaced by #751P11289A

?
Manufacturer substitution
This part replaces 951-11289. Substitute parts can look different from the original.
This item is not returnable
In Stock
Snowblower Ignition Switch (replaces 751-10637, 925-04031a) 951-10637
#39

Engine shroud 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
Lawn & Garden Equipment Engine Fuel Tank (replaces 951-10653a) 951-10653B
#115

Fuel tank & mounting diagram

Lawn & garden equipment engine fuel tank (replaces 951-10653a)

Part #951-10653B

$87.11
13% OFF MSRP : $100.00
In Stock

Repair guides for bottom-mount refrigerators

How to replace an electronic control board on the back of a refrigerator

How to replace an electronic control board on the back of a refrigerator

If your refrigerator isn't running, an electronic control board failure could be the problem. A service technician can d…

Repair difficulty
Time required
 15 minutes or less
How to replace a refrigerator thermistor

How to replace a refrigerator thermistor

The thermistor senses the temperature inside the refrigerator. If the actual temperature and the temperature you set are…

Repair difficulty
Time required
 15 minutes or less
How to replace an in-door ice maker on a French door refrigerator

How to replace an in-door ice maker on a French door refrigerator

Follow these step-by-step instructions how to replace the in-door ice maker in Kenmore TRIO and LG French door refrigera…

Repair difficulty
Time required
 15 minutes or less

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

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.…

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.…