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MTD
Rear-Engine Riding Mower

Model # 134B-325-401 Official MTD riding lawn mower

Here are the diagrams and repair parts for Official MTD 134B-325-401 riding lawn mower, as well as links to manuals and error code tables, if available.

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Model diagram and schematic

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ALL PARTS
Showing 10 of 307 parts  |
Lawn & Garden Equipment Hex Flange Nut (replaces 753-05549, 912-0417a) 712-0417A
#16

Three-in-one mowing deck diagram

Lawn & garden equipment hex flange nut (replaces 753-05549, 912-0417a)

Part #712-0417A

BEST SELLER
$8.00 | 
11% OFF Phone Price : $9.00
In Stock
Brake Assembly 661-0006
#5

Single speed transmission-l.h. diagram

Brake assembly

Part #661-0006

Replaced by #961-0006

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Manufacturer substitution
This part replaces 661-0006. Substitute parts can look different from the original.
$48.54 | 
11% OFF Phone Price : $54.54
In Stock
Lawn & Garden Equipment Screw, 3/8-16 X 1-3/4-in 710-0347
#8

Three-in-one mowing deck diagram

Lawn & garden equipment screw, 3/8-16 x 1-3/4-in

Part #710-0347

This item is not returnable
$7.69 | 
12% OFF Phone Price : $8.69
In Stock
Aircap Lawn Tractor Screw (replaces 150011, 910-0134) 710-0134
Aircap lawn tractor screw (replaces 150011, 910-0134)

Part #710-0134

This item is not returnable
$6.55 | 
13% OFF Phone Price : $7.55
In Stock
Toro Lawn Tractor Screw 710-0643
#7

Front floor console diagram

Toro lawn tractor screw

Part #710-0643

This item is not returnable
$10.56 | 
16% OFF Phone Price : $12.56
In Stock
Yard-man Lawn Tractor Oil Drain Tube (replaces 1830086, 731-1682) 731-1682A
#24

Frame assembly diagram

Yard-man lawn tractor oil drain tube (replaces 1830086, 731-1682)

Part #731-1682A

This item is not returnable
$10.74 | 
16% OFF Phone Price : $12.74
In Stock
Lawn & Garden Equipment Cotter Pin (replaces 914-0145) 714-0145
#24

Upper frame diagram

Lawn & garden equipment cotter pin (replaces 914-0145)

Part #714-0145

This item is not returnable
$6.97
In Stock
Puck Brake 717-0678
#8

Single speed transmission-l.h. diagram

Puck brake

Part #717-0678

Replaced by #917-0678

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Manufacturer substitution
This part replaces 717-0678. Substitute parts can look different from the original.
This item is not returnable
$9.67 | 
9% OFF Phone Price : $10.67
In Stock
Ryobi Lawn & Garden Equipment Hex Nut (replaces 912-3010) 712-3010
Ryobi lawn & garden equipment hex nut (replaces 912-3010)

Part #712-3010

$7.71
In Stock
Ace Lawn Tractor Hex Bolt 710-3096
#6

Variable drive diagram

Ace lawn tractor hex bolt

Part #710-3096

This item is not returnable
$9.93 | 
9% OFF Phone Price : $10.93
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.

View all

Why won't my riding mower cut grass?

Main causes: worn or broken blade belt, broken belt idler pulley, blade clutch cable failure, bad PTO switch, damaged ma…

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How do I charge a dead battery on my riding mower?

Main causes: faulty battery, bad alternator…

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How do I fix a flat tire on my riding mower?

Main causes: punctured tire or inner tube, leaky valve stem, damaged wheel rim…

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Why won't my riding mower start?

Main causes: dead battery, stale fuel, bad starter solenoid, ignition system problem, bad ignition interlock switch, clo…

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Why is the steering loose on my riding mower?

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

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Why does my riding mower creep in neutral?

Main causes: shift lever needs adjustment, neutral control needs adjustment…

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Why does my riding mower run rough or misfire?

Main causes: clogged carburetor, damaged flywheel key, dirty spark plug, stale fuel, improper valve lash, engine needs a…

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Why won't my riding mower move?

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

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Why is my riding mower not cutting evenly?

Main causes: unlevel mower deck, dull or damaged cutting blades, worn mandrel pulleys, bent mower deck, engine needs tun…

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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.

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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.…

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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.…

Read more
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.…

Read more
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.

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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.…

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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.…

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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.…

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