Front-Engine Lawn Tractor

Model # 3312HR Official Troybilt tractor

Here are the diagrams and repair parts for Official Troybilt 3312HR tractor, as well as links to manuals and error code tables, if available.

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3312HR Riding Mowers & Tractors
Lock Washer B1185140
#27

Engine diagram

Lock washer

Part #B1185140

Replaced by #936-0119

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Manufacturer substitution
This part replaces B1185140. Substitute parts can look different from the original.
This item is not returnable
$6.05
14% OFF Phone Price : $7.05
In Stock
Neck Belt Shifter B1736098
Neck belt shifter

Part #B1736098

Replaced by #710-0260A

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Manufacturer substitution
This part replaces B1736098. Substitute parts can look different from the original.
This item is not returnable
$6.55
13% OFF Phone Price : $7.55
Back Order
Pto Switch B1754608
Pto switch

Part #B1754608

Replaced by #1754608

?
Manufacturer substitution
This part replaces B1754608. Substitute parts can look different from the original.
$80.83
7% OFF Phone Price : $86.83
In Stock
Tire B1756864
#65

Frame, lift and steering assembly diagram

Tire

Part #B1756864

Replaced by #734-1731-0901

?
Manufacturer substitution
This part replaces B1756864. Substitute parts can look different from the original.
$43.12
12% OFF Phone Price : $49.12
In Stock
Lock Nut B1733398
Lock nut

Part #B1733398

Replaced by #912-3000

?
Manufacturer substitution
This part replaces B1733398. Substitute parts can look different from the original.
This item is not returnable
In Stock
Retaining Ring B1177567
Retaining ring

Part #B1177567

Replaced by #716-0106

?
Manufacturer substitution
This part replaces B1177567. Substitute parts can look different from the original.
This item is not returnable
In Stock
Washer B1705092
#99

Hydrostatic & brake assembly diagram

Washer

Part #B1705092

Replaced by #736-0156

?
Manufacturer substitution
This part replaces B1705092. Substitute parts can look different from the original.
This item is not returnable
In Stock
Valve Stem B1718086
Valve stem

Part #B1718086

Replaced by #934-0255

?
Manufacturer substitution
This part replaces B1718086. Substitute parts can look different from the original.
This item is not returnable
$6.76
13% OFF Phone Price : $7.76
In Stock
Washer B1715301
#40

Frame, lift and steering assembly diagram

Washer

Part #B1715301

Replaced by #1715301

?
Manufacturer substitution
This part replaces B1715301. Substitute parts can look different from the original.
In Stock
Screw B1186347
#68

Body work and trim assembly diagram

Screw

Part #B1186347

Replaced by #710-04042

?
Manufacturer substitution
This part replaces B1186347. Substitute parts can look different from the original.
This item is not returnable
In Stock

Most common symptoms to help you fix your 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: clogged carburetor, damaged flywheel key, dirty spark plug, stale fuel, improper valve lash, engine needs a…

Main causes: worn or broken ground drive belt, bad seat switch, transaxle freewheel control engaged, transaxle failure, …

Main causes: damaged tie rods, bent or worn wheel spindle, worn front axle, damaged sector gear assembly…

Main causes: engine overfilled with oil, leaky head gasket or sump gasket, damaged carburetor seals, cracked fuel pump, …

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 ma…

Main causes: damaged cutting blade, worn deck pulley, damaged mandrel pulley, loose fasteners on mower deck components…

Main causes: faulty battery, bad alternator…

Most common repair guides to help fix your 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 a riding lawn mower rear tire

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
How to replace a riding lawn mower blade

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
How to replace a riding lawn mower fuel filter

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

Effective articles & videos to help repair your 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.

How to enjoy all the online benefits we offer on our Sears PartsDirect website

How to enjoy all the online benefits we offer on our Sears PartsDirect website

Learn about all the convenient features on our Sears PartsDirect website that make your parts purchases easier.…

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.…

Riding lawn mower engine clicks but doesn't turn over video

Riding lawn mower engine clicks but doesn't turn over video

Check the starter solenoid, starter motor, wiring, battery and engine.…