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MTD 11A-429R729 lawn mower

MTD 11A-429R729 lawn mower Parts

Here are the diagrams and repair parts for MTD 11A-429R729 lawn mower, as well as links to manuals and error code tables, if available.

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Browse Parts for 11A-429R729 Walk-Behind Mowers

  • Troybilt Lawn Mower Zone Control Cable for MTD 11A-429R729 - Part 946-1130

    Lawn mower diagram

    Lawn Mower Control Cable

    Part #746-1130

    Replaced by #946-1130

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    $17.14
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  • Lawn Mower Zone Control Cable for MTD 11A-429R729 - Part 946-0554

    Lawn mower diagram

    Control Cable

    Part #746-0554

    Replaced by #946-0554

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  • Lawn Mower Grass Bag Frame for MTD 11A-429R729 - Part 747-04080A

    Lawn mower diagram

    Grass Bag Frame

    Part #747-04080

    Replaced by #747-04080A

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  • Mtd Lawn Mower Zone Control Cable for MTD 11A-429R729 - Part 946-0957

    Lawn mower diagram

    Control Cable

    Part #746-0957

    Replaced by #946-0957

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    This part replaces 746-0957. Substitute parts can look different from the original.
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  • Adjustment Plate for MTD 11A-429R729 - Part 787-01290A

    Lawn mower diagram

    Plate:ht Adj

    Part #787-01290

    Replaced by #787-01290A

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  • Screw for MTD 11A-429R729 - Part 738-04136

    Lawn mower diagram

    Screw

    Part #738-04136

    The manufacturer no longer makes this part, and there's no substitute part

  • Generic Grasscatcher Bag for MTD 11A-429R729 - Part 664-04007A

    Lawn mower diagram

    Generic Grasscatcher Bag

    Part #664-04007A

    The manufacturer no longer makes this part, and there's no substitute part

  • Spacer for MTD 11A-429R729 - Part 750-04162

    Lawn mower diagram

    Spacer

    Part #750-04162

    The manufacturer no longer makes this part, and there's no substitute part

  • Handle Bracket - Lh for MTD 11A-429R729 - Part 787-01291

    Lawn mower diagram

    Handle Bracket - Lh

    Part #787-01291

    The manufacturer no longer makes this part, and there's no substitute part

  • Pivot Arm Assembly - Rh for MTD 11A-429R729 - Part 687-02071A

    Lawn mower diagram

    Pivot Arm Assembly - Rh

    Part #687-02071A

    The manufacturer no longer makes this part, and there's no substitute part

MTD Lawn Mower 11A-429R729 FAQs

For the MTD 11A-429R729 gas walk-behind mower, the main mower “type” is a walk-behind rotary mower; beyond that, mowers are commonly grouped by how they move (push vs. self-propelled), how they cut (rotary vs. reel/cylinder), and what they ride on (walk-behind vs. riding). For safe operation and setup details, follow the 11A-429R729 owner's manual.

Common mower types (quick list)
  • Push walk-behind mower: You push; simplest design and usually lighter.
  • Self-propelled walk-behind mower: Drive system helps move the mower forward.
  • Riding lawn tractor: Sit-down mower for larger yards; wider cutting decks.
  • Zero-turn rider: Very maneuverable rider for open areas and tight turns.
  • Reel (cylinder) mower: Scissor-like cut; often manual or electric; best on shorter grass.
  • Hover mower: Floats on an air cushion; useful on slopes or uneven ground.
How mower types compare
Type Best for Typical tradeoff
Walk-behind rotary (like 11A-429R729) Small to medium lawns, mixed grass More walking time than a rider
Self-propelled walk-behind Hills, thicker grass, longer mowing sessions More maintenance than a push mower
Riding/zero-turn Large lawns Higher cost, more storage space
Reel/cylinder Fine turf, frequent mowing Struggles with tall or weedy grass
Why it matters

Choosing the right mower type affects cut quality, mowing time, and maintenance. For example, rotary mowers handle taller grass better, while reel mowers deliver a cleaner cut on short, well-kept turf.

Tip for getting the best cut from a rotary walk-behind
  • Keep the blade sharp and balanced
  • Avoid mowing wet grass
  • Set all wheels to the same cutting height for an even cut
  • Inspect the blade after hitting debris and tighten fasteners as needed

Last updated: January 2026

A mower like the MTD 11A-429R729 gas walk-behind mower is used to cut grass to a consistent height so your lawn looks even and stays healthier. Many models also let you bag clippings or mulch them, depending on how you set up the rear discharge area.

Common jobs a walk-behind mower handles
  • Cutting grass evenly across a yard
  • Mulching clippings (rear discharge door closed, grass catcher removed)
  • Bagging clippings for cleanup (using the grass catcher)
  • Helping manage lawn health by avoiding over-cutting
  • Routine deck cleaning to prevent grass buildup
How to use it for mulching vs. bagging

The operator guidance for the 11A-429R729 includes both mulching and grass catcher use. Here is a quick comparison:

Mode What you do Best for
Mulching Remove grass catcher; keep rear discharge door closed Returning fine clippings to the lawn
Bagging Install grass catcher; stop engine before removing bag Cleaner finish and collecting clippings
Mowing tips that protect your lawn (and your mower)

These practices help performance and reduce strain on the blade, deck, and engine:

  • Do not cut wet grass for best results.
  • Never cut off more than one-third of the total grass height.
  • If grass is over about 4 inches, bagging is typically better than mulching.
  • Keep the underside of the mower deck clean after each use to prevent buildup.
  • Wear safety glasses and keep bystanders away while mowing.
Why it matters

Cutting too much at once, mowing wet grass, or letting clippings build up under the deck can lead to uneven cutting, clumping, and extra load on the engine. Following the operating and deck-care steps in the 11A-429R729 operator's manual helps the mower cut cleaner and last longer.

Last updated: January 2026

A compact riding mower is the best fit for lawns around 1/2 acre to 2 acres, especially when the yard is mostly open and mowing with a walk-behind takes too long. For your MTD 11A-429R729 (a walk-behind mower), operating and safety details are in the 11A-429R729 operator's manual.

Quick sizing guide (by lawn area)
  • Under 1/4 acre: walk-behind mower is usually fastest overall
  • 1/4 to 1/2 acre: self-propelled walk-behind or compact rider (depends on obstacles)
  • 1/2 to 2 acres: compact riding mower for major time savings
  • Over 2 acres: larger rider or zero-turn is typically more efficient
  • Steep slopes or many tight obstacles: walk-behind often handles maneuvering and footing better
Factors that matter as much as acreage
  • Obstacles and layout: trees, beds, and fencing increase turning and trimming time
  • Terrain: bumps, soft ground, and slopes can limit traction and stability on riders
  • Gate width and storage space: riders need more clearance and parking room
  • Mowing frequency: weekly mowing reduces load on any mower type
  • Grass conditions: wet or overgrown grass slows any mower and can reduce cut quality
Compact rider vs walk-behind: simple comparison
Yard situation Best match Why it works
Mostly open, 1/2 to 2 acres Compact riding mower Faster coverage with less fatigue
Smaller or obstacle-heavy Walk-behind mower Better maneuverability and access
Steep or uneven areas Walk-behind mower More controlled handling on slopes
Why it matters

Matching mower type to yard size and layout saves time and helps you get a cleaner cut. Operator manuals also emphasize basics that improve results, such as avoiding wet grass and not removing more than one-third of grass height per pass.

Last updated: January 2026

Most common symptoms to help you fix your walk-behind mowers

Choose a symptom to see related walk-behind mower repairs.

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Repair guides for gas walk-behind mowers

These step-by-step repair guides will help you safely fix what’s broken on your walk-behind lawn mower.

How to replace a lawn mower front deck tray

How to replace a lawn mower front deck tray

Learn how to replace the front deck tray on your lawn mower if it's cracked or damaged.…

Repair time and Difficulty

 60 minutes or less
How to replace a lawn mower transmission

How to replace a lawn mower transmission

Learn how to replace the transmission on your lawn mower if it's locked up or won't drive the wheels.…

Repair time and Difficulty

 60 minutes or less
How to replace a lawn mower flywheel key on a flathead engine

How to replace a lawn mower flywheel key on a flathead engine

When you hit a hard object with your mower, the flywheel can shear to protect more expensive components. Learn how to re…

Repair time and Difficulty

 45 minutes or less

Effective articles & videos to help repair your walk-behind mowers

Use the advice and tips in these articles and videos to get the most out of your walk-behind lawn mower.

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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Is it time to switch to an electric lawn mower?

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