Snapper
Front-Engine Lawn Tractor

Model #SGT27540D (2690634) Official Snapper diesel 4wd tractor

Here are the diagrams and repair parts for Snapper SGT27540D-2690634 diesel 4wd 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:

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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 551 parts

Snowblower Nut

See All Related Diagrams

Lawn & garden equipment nut

Part #1920397
Replaced by #703232
?
Manufacturer substitution
This part replaces 1920397. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
In Stock
$4.84 | 
35% OFF 
MSRP: $7.50
Lawn Tractor PTO Switch (replaces 1716332SM, 1722887, 3032137YP, 5022180SM)#22

Electrical - 27 hp diesel Diagram

Switch

Part #1722887
Replaced by #1722887SM
?
Manufacturer substitution
This part replaces 1722887. Substitute parts can look different from the original.
BEST SELLER
In Stock
$37.79 | 
12% OFF 
Phone Price: $42.79
Lawn & Garden Equipment Retainer Ring#30

Housing/arbors/blades Diagram

Retaining ring

Part #1657528
Replaced by #1657528SM
?
Manufacturer substitution
This part replaces 1657528. Substitute parts can look different from the original.
This item is not returnable
In Stock
$6.20 | 
14% OFF 
Phone Price: $7.20
Lawn Tractor Washer#29

Housing/arbors/blades Diagram

Washer

Part #1656916
Replaced by #1656916SM
?
Manufacturer substitution
This part replaces 1656916. Substitute parts can look different from the original.
This item is not returnable
In Stock
$12.59 | 
14% OFF 
Phone Price: $14.59
Lawn Tractor Hex Bolt#19

Housing/arbors/blades Diagram

Cap screw

Part #2823471
Replaced by #703579
?
Manufacturer substitution
This part replaces 2823471. Substitute parts can look different from the original.
This item is not returnable
In Stock
$7.89 | 
11% OFF 
Phone Price: $8.89
Snowblower Nut#61

Height adjustment/roller Diagram

Nut

Part #1919438
Replaced by #703902
?
Manufacturer substitution
This part replaces 1919438. Substitute parts can look different from the original.
This item is not returnable
In Stock
$4.66 | 
18% OFF 
Phone Price: $5.66
Lawn Tractor Hex Lock Nut#51

Steering/front axle Diagram

Nut

Part #1960576
Replaced by #1960576SM
?
Manufacturer substitution
This part replaces 1960576. Substitute parts can look different from the original.
This item is not returnable
In Stock
$9.79 | 
9% OFF 
Phone Price: $10.79
Lawn & Garden Equipment Nut

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Lawn & garden equipment nut

Part #1960687
Replaced by #703158
?
Manufacturer substitution
This part replaces 1960687. Substitute parts can look different from the original.
This item is not returnable
In Stock
$5.79 | 
15% OFF 
Phone Price: $6.79
Lawn Tractor Ring Clip#60

Controls Diagram

Ring

Part #1611710
Replaced by #1611710SM
?
Manufacturer substitution
This part replaces 1611710. Substitute parts can look different from the original.
This item is not returnable
In Stock
$7.29 | 
12% OFF 
Phone Price: $8.29
Lawn & Garden Equipment Nut#22

Height adjustment/roller Diagram

Nut

Part #1930651
Replaced by #703893
?
Manufacturer substitution
This part replaces 1930651. Substitute parts can look different from the original.
This item is not returnable
In Stock
$11.29 | 
15% OFF 
Phone Price: $13.29

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.