Snapper
Front-Engine Lawn Tractor

Model #LT1644 Official Snapper tractor

Here are the diagrams and repair parts for Snapper LT1644 tractor, 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”.

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For DIY troubleshooting advice and repair guides, visit our repair help section.

Showing 10 of 476 parts

Snowblower Ball Bearing (replaces 1501389, 1705897, 2047, 43846MA, 49562MA, 5020827SM, 7013020)#11

Housing/arbors/blades Diagram

Bearing

Part #1705897
Replaced by #1705897SM
?
Manufacturer substitution
This part replaces 1705897. Substitute parts can look different from the original.
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MSRP: $9.20
Lawn Tractor Ball Bearing (replaces 1729578, 1729578SM, 2046, 2108202YP, 7013313, 7013313SM)#8

Housing/arbors/blades Diagram

Bearing

Part #2108202
Replaced by #2108202SM
?
Manufacturer substitution
This part replaces 2108202. Substitute parts can look different from the original.
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Was: $19.29
Lawn Tractor Mandrel Pulley (replaces 1713098)#5

Housing/arbors/blades Diagram

Pulley

Part #1713098
Replaced by #1713098SM
?
Manufacturer substitution
This part replaces 1713098. Substitute parts can look different from the original.
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Phone Price: $29.17
Lawn Tractor Arbor Gasket#12

Housing/arbors/blades Diagram

Gasket

Part #1707335
Replaced by #1707335SM
?
Manufacturer substitution
This part replaces 1707335. Substitute parts can look different from the original.
BEST SELLER
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$8.81 | 
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Was: $9.79
Lawn Tractor Mandrel Shaft Hub#6

Housing/arbors/blades Diagram

Hub

Part #1713533
Replaced by #1713533SM
?
Manufacturer substitution
This part replaces 1713533. Substitute parts can look different from the original.
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In Stock
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Lawn Tractor Nut

See All Related Diagrams

Nut

Part #1931277
Replaced by #703409
?
Manufacturer substitution
This part replaces 1931277. Substitute parts can look different from the original.
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Lawn & Garden Equipment Cotter Pin#39

Height adjustment/roller bar Diagram

Clip

Part #1960074
Replaced by #703300
?
Manufacturer substitution
This part replaces 1960074. Substitute parts can look different from the original.
This item is not returnable
In Stock
$6.02 | 
14% OFF 
Phone Price: $7.02
Lawn Tractor Hex Flange Nut#1

Housing/arbors/blades Diagram

Nut

Part #1714419
Replaced by #1714419SM
?
Manufacturer substitution
This part replaces 1714419. Substitute parts can look different from the original.
This item is not returnable
In Stock
$8.63 | 
10% OFF 
Was: $9.59
Lawn Tractor Ignition Switch (replaces 1686734, 1686734YP, 1716061, 5020927YP)#16

Electrical Diagram

Ignition switch

Part #1686734
Replaced by #1686734SM
?
Manufacturer substitution
This part replaces 1686734. Substitute parts can look different from the original.
In Stock
$46.19 | 
10% OFF 
Phone Price: $51.19
Lawn & Garden Equipment Lock Washer

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Washer, lock, 5/1

Part #1917356
Replaced by #703116
?
Manufacturer substitution
This part replaces 1917356. Substitute parts can look different from the original.
This item is not returnable
In Stock
$5.21 | 
16% OFF 
Phone Price: $6.21

Symptoms common to all riding mowers & tractors

Choose a symptom to see related riding mower and lawn tractor repairs.

Main causes: punctured tire or inner tube, leaky valve stem, damaged wheel rim
Main causes: worn or broken ground drive belt, bad seat switch, transaxle freewheel control engaged, transaxle failure, dirty carburetor
Main causes: shift lever needs adjustment, neutral control needs adjustment
Main causes: worn or broken blade belt, broken belt idler pulley, blade clutch cable failure, bad PTO switch, damaged mandrel pulleys
Main causes: damaged cutting blade, worn deck pulley, damaged mandrel pulley, loose fasteners on mower deck components
Main causes: engine overfilled with oil, leaky head gasket or sump gasket, damaged carburetor seals, cracked fuel pump, broken fuel line
Main causes: clogged carburetor, damaged flywheel key, dirty spark plug, stale fuel, improper valve lash, engine needs a tune up
Main causes: faulty battery, bad alternator
Main causes: unlevel mower deck, dull or damaged cutting blades, worn mandrel pulleys, bent mower deck, engine needs tune up

Repair guides common to all riding mowers & tractors

These step-by-step repair guides will help you safely fix what’s broken on your riding mower or lawn tractor.

January 1, 2015
By Lyle Weischwill
How to replace a riding lawn mower rear tire

Your mower can’t run on a damaged rear tire. Here’s how to install a new one.

Repair difficulty
Time required
 60 minutes or less
January 1, 2015
By Lyle Weischwill
How to replace a riding lawn mower blade

If a blade on your mower is dull or bent, replace it following the steps in this repair guide.

Repair difficulty
Time required
 30 minutes or less
January 1, 2015
By Lyle Weischwill
How to replace a riding lawn mower fuel filter

Help your mower run better by replacing the fuel filter during your riding mower's annual tune-up.

Repair difficulty
Time required
 15 minutes or less

Articles and videos common to all riding mowers & tractors

Use the advice and tips in these articles and videos to get the most out of your riding mower or lawn tractor.

August 6, 2020

How to remove a lawn mower blade using a removal tool

By Lyle Weischwill

Learn how a blade removal tool makes replacing the blade easier and safer

April 9, 2019

Riding mower parts and supplies to stock up on video

By Kim Hillegass

Keep these 6 things on hand to keep the mower season running smoothly.

March 1, 2016

Charging a battery in a riding lawn mower video

By Lyle Weischwill

Learn how to use a battery charger if your mower battery is dead.