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Front-Engine Lawn Tractor

Model # 131784G Official MTD lawn tractor

Here are the diagrams and repair parts for Official MTD 131784G lawn tractor, as well as links to manuals and error code tables, if available.

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Browse Parts for131784G Riding Mowers & Tractors

  • Yard Machines Lawn & Garden Equipment Bell Washer 736-0242
    Yard machines lawn & garden equipment bell washer

    Part #736-0242

    This item is not returnable
    $6.58
    13% OFF Phone Price : $7.58
    In Stock
  • Hex Screw 710-0427
    #119

    Engine diagram

    Hex screw

    Part #710-0427

    Replaced by #710-3144

    ?
    Manufacturer substitution
    This part replaces 710-0427. Substitute parts can look different from the original.
    This item is not returnable
    $5.64
    15% OFF Phone Price : $6.64
    Back Order
  • Lock Washer 736-0119
    Lock washer

    Part #736-0119

    Replaced by #936-0119

    ?
    Manufacturer substitution
    This part replaces 736-0119. Substitute parts can look different from the original.
    This item is not returnable
    $6.05
    14% OFF Phone Price : $7.05
    In Stock
  • Mtd Lawn Tractor Gauge Wheel 734-0973
    #17

    Deck "g" diagram

    Mtd lawn tractor gauge wheel

    Part #734-0973

    In Stock
  • Cap Screw 710-0258
    #109

    Lower frame diagram

    Cap screw

    Part #710-0258

    Replaced by #710-0751

    ?
    Manufacturer substitution
    This part replaces 710-0258. Substitute parts can look different from the original.
    This item is not returnable
    $5.12
    16% OFF Phone Price : $6.12
    In Stock
  • Screw 710-0253
    #69

    Drive assembly diagram

    Screw

    Part #710-0253

    Replaced by #710-0514

    ?
    Manufacturer substitution
    This part replaces 710-0253. Substitute parts can look different from the original.
    This item is not returnable
    $5.33
    16% OFF Phone Price : $6.33
    In Stock
  • Mtd Lawn & Garden Equipment Cotter Pin 714-0145
    #35

    Upper frame diagram

    Mtd lawn & garden equipment cotter pin

    Part #714-0145

    This item is not returnable
    In Stock
  • Sears Lawn & Garden Equipment Bell Washer 736-0331
    #99

    Engine diagram

    Sears lawn & garden equipment bell washer

    Part #736-0331

    This item is not returnable
    $4.91
    17% OFF Phone Price : $5.91
    In Stock
  • Toro Lawn & Garden Equipment Lock Washer 736-0169
    Toro lawn & garden equipment lock washer

    Part #736-0169

    This item is not returnable
    In Stock
  • Mtd Lawn Tractor Screw (710-0642) 710-0642
    #80

    Lower frame diagram

    Mtd lawn tractor screw (710-0642)

    Part #710-0642

    This item is not returnable
    $5.68
    15% OFF Phone Price : $6.68
    Back Order

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

Main causes: faulty battery, bad alternator…

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

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

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

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…

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

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

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 mandrel assembly on a riding lawn mower

How to replace a mandrel assembly on a riding lawn mower

Replace the mandrel assembly if the blade shaft vibrates or doesn't spin.…

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

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 ste…

Repair difficulty
Time required
 60 minutes or less
How to replace a riding lawn mower ignition coil

How to replace a riding lawn mower ignition coil

If you're not getting spark from a good spark plug, the problem could be the ignition coil. Follow these step-by-step in…

Repair difficulty
Time required
 30 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.

What's the difference between a lawn tractor and a garden tractor?

What's the difference between a lawn tractor and a garden tractor?

Do you know a lawn tractor from a garden tractor? Take a look at the key differences and discover how each handles your …

The best time of day to mow grass (and when you should absolutely not)

The best time of day to mow grass (and when you should absolutely not)

Wondering when to mow your lawn for the best results? Timing matters more than you might think. Discover the best time o…

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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