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Front-Engine Lawn Tractor

Model # 13AN77TG766 Official Troybilt tractor

Here are the diagrams and repair parts for Official Troybilt 13AN77TG766 tractor, as well as links to manuals and error code tables, if available.

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Browse Parts for13AN77TG766 Riding Mowers & Tractors

  • Cable 746-04173A
    #14

    Frame assembly - models 760-779 diagram

    Cable

    Part #746-04173A

    Replaced by #946-04173E

    ?
    Manufacturer substitution
    This part replaces 746-04173A. Substitute parts can look different from the original.
    BEST SELLER
    $45.99
    12% OFF Phone Price : $51.99
    Back Order
  • Lawn Mower Blade 742-0616A
    #38

    42" deck diagram

    Lawn mower blade

    Part #742-0616A

    Replaced by #942-0616A

    ?
    Manufacturer substitution
    This part replaces 742-0616A. Substitute parts can look different from the original.
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    Get free shipping with Automatic Reorder

    $31.32
    16% OFF Phone Price : $37.32
    In Stock
  • Lawn & Garden Equipment Hex Flange Nut 712-0417A
    #16

    42" deck diagram

    Lawn & garden equipment hex flange nut

    Part #712-0417A

    BEST SELLER
    $8.24
    11% OFF Phone Price : $9.24
    In Stock
  • Yard Machines Lawn & Garden Equipment Lock Nut, 5/16-18 712-04063
    Yard machines lawn & garden equipment lock nut, 5/16-18

    Part #712-04063

    BEST SELLER
    This item is not returnable
    $4.40
    19% OFF Phone Price : $5.40
    In Stock
  • Gasket 721-0208
    #11

    Muffler shield assembly diagram

    Gasket

    Part #721-0208

    Replaced by #692236

    ?
    Manufacturer substitution
    This part replaces 721-0208. Substitute parts can look different from the original.
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    $6.76
    13% OFF Phone Price : $7.76
    In Stock
  • Ignition Key 725-1744
    #25

    Hood/dash diagram

    Ignition key

    Part #725-1744

    Replaced by #925-1745A

    ?
    Manufacturer substitution
    This part replaces 725-1744. Substitute parts can look different from the original.
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    $19.56
    9% OFF Phone Price : $21.56
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  • Pulley, Idler, 4.25" Dia. 756-04129
    #45

    42" deck diagram

    Pulley, idler, 4.25" dia.

    Part #756-04129

    Replaced by #753-08171

    ?
    Manufacturer substitution
    This part replaces 756-04129. Substitute parts can look different from the original.
    BEST SELLER
    $36.35
    14% OFF Phone Price : $42.35
    In Stock
  • Mtd Yard Machines Lawn Tractor Flange Nut 712-04065
    Mtd yard machines lawn tractor flange nut

    Part #712-04065

    BEST SELLER
    This item is not returnable
    $5.27
    16% OFF Phone Price : $6.27
    In Stock
  • Steering Shaft 738-0919
    #14

    Gear assembly diagram

    Steering shaft

    Part #738-0919

    Replaced by #738-0919B

    ?
    Manufacturer substitution
    This part replaces 738-0919. Substitute parts can look different from the original.
    BEST SELLER
    $58.52
    9% OFF Phone Price : $64.52
    In Stock
  • Mtd Lawn Tractor Flange Bearing 741-0660A
    #34

    Gear assembly diagram

    Mtd lawn tractor flange bearing

    Part #741-0660A

    BEST SELLER
    This item is not returnable
    $4.11
    20% OFF Phone Price : $5.11
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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.

Why your mower loses power when the blades are engaged

Why your mower loses power when the blades are engaged

Blades on, power gone? If your mower sputters or stalls when cutting starts, we’ll help you track down the problem and f…

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…

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