Snapper
Front-Engine Lawn Tractor

Model #LT23420 Snapper tractor - lt-125 series

Here are the diagrams and repair parts for Snapper LT23420 tractor - lt-125 series, as well as links to manuals and error code tables, if available.


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Showing 10 of 481 parts

Lawn Tractor Hex Flange Nut

#4

Electrical Diagram

Lawn tractor hex flange nut

Part #1717549SM
?
Manufacturer substitution
This part replaces 1717549. Substitute parts can look different from the original.
This part replaces 1717549
This item is not returnable
$3.85

In Stock

Lawn Tractor Gauge Wheel

#3

42" deck-height adj./roller bar Diagram

Lawn tractor gauge wheel

Part #1714760SM
?
Manufacturer substitution
This part replaces 1714760. Substitute parts can look different from the original.
This part replaces 1714760
This item is not returnable
$4.88 | 
21% OFF MSRP:$6.20

In Stock

Lawn Tractor Dash Hole Plug

#8

Electrical Diagram

Lawn tractor dash hole plug

Part #1722611SM
?
Manufacturer substitution
This part replaces 1722611. Substitute parts can look different from the original.
This part replaces 1722611
This item is not returnable
$4.11 | 
34% OFF MSRP:$6.20

In Stock

Lawn Tractor Headlight Bulb

#25

Electrical Diagram

Lawn tractor headlight bulb

Part #1677371SM
?
Manufacturer substitution
This part replaces 1677371. Substitute parts can look different from the original.
This part replaces 1677371
$18.53 | 
31% OFF MSRP:$27.00

In Stock

Spring Cover

#14

Seat deck/fuel tank Diagram

Spring cover

Part #1704724SM
?
Manufacturer substitution
This part replaces 1704724. Substitute parts can look different from the original.
This part replaces 1704724
This item is not returnable
$6.80

In Stock

Compression Spring

#12

Seat deck/fuel tank Diagram

Compression spring

Part #1704728SM
?
Manufacturer substitution
This part replaces 1704728. Substitute parts can look different from the original.
This part replaces 1704728
$8.73

In Stock

Lawn Tractor Mandrel Pulley Spacer

#13

Housing/arbor/blades Diagram

Lawn tractor mandrel pulley spacer

Part #7072440SM
?
Manufacturer substitution
This part replaces 7072440. Substitute parts can look different from the original.
This part replaces 7072440
This item is not returnable
$5.72 | 
27% OFF MSRP:$7.80

In Stock

Clevis Lift

#10

Lift-manual Diagram

Clevis lift

Part #1728990ASM
?
Manufacturer substitution
This part replaces 1728990A. Substitute parts can look different from the original.
This part replaces 1728990A
$10.87

In Stock

Lawn Tractor Grille

#22

Hood/grill/dash Diagram

Lawn tractor grille

Part #1728059DSM
?
Manufacturer substitution
This part replaces 1728059D. Substitute parts can look different from the original.
This part replaces 1728059D
$152.09

In Stock

Rod-tie Rege

#24

Frame/front axle Diagram

Rod-tie rege

Part #1728080ASM
?
Manufacturer substitution
This part replaces 1728080A. Substitute parts can look different from the original.
This part replaces 1728080A
$28.75

In Stock

Symptoms common to all riding mowers & tractors

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

Main causes: worn or broken ground drive belt, bad seat switch, transaxle freewheel control engaged, transaxle failure, dirty carburetor
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: punctured tire or inner tube, leaky valve stem, damaged wheel rim
Main causes: unlevel mower deck, dull or damaged cutting blades, worn mandrel pulleys, bent mower deck, engine needs tune up
Main causes: damaged tie rods, bent or worn wheel spindle, worn front axle, damaged sector gear assembly
Main causes: worn or broken blade belt, broken belt idler pulley, blade clutch cable failure, bad PTO switch, damaged mandrel pulleys
Main causes: shift lever needs adjustment, neutral control needs adjustment
Main causes: clogged carburetor, damaged flywheel key, dirty spark plug, stale fuel, improper valve lash, engine needs a 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.

How to replace the starter motor on a riding lawn mower

If you hear the solenoid click but don’t hear the starter motor spin when you turn the key, follow these steps to replace it.

Repair difficulty
Time required
 30 minutes or less
How to replace the flywheel key on a riding lawn mower

If the engine won't restart after hitting a stump or rock, the problem could be a sheared flywheel key. Follow these step-by-step instructions to replace it.

Repair difficulty
Time required
 60 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.

May 1, 2017

Riding lawn mower engine spins but won't start video

By Sears PartsDirect staff

Troubleshoot fuel, spark and compression issues.

June 1, 2016

How to mow a lawn for healthier grass

By Erin Hynes

How often and tall you mow your lawn has a big impact on its health. Check out these 3 rules.

March 1, 2016

How to change the Smart Switch Ignition password on a lawn tractor video

By Sears PartsDirect staff

See how to unlock the factory default start code so you can set your own passcode.