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Craftsman 917371031 lawn mower

Craftsman 917371031 lawn mower Parts

Here are the diagrams and repair parts for Craftsman 917371031 lawn mower, as well as links to manuals and error code tables, if available.

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Browse Parts for 917371031 Walk-Behind Mowers

  • Lawn Mower Drive Control for Craftsman 917371031 - Part 426242

    Drive control/gear case/wheels diagram

    Lawn Mower Drive Control

    Part #426242

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

  • Adjustment Bracket for Craftsman 917371031 - Part 187064X479

    Engine/housing/handle diagram

    Adjustment Bracket

    Part #187064X479

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

  • Idler Arm for Craftsman 917371031 - Part 408004X004

    Drive control/gear case/wheels diagram

    Idler Arm

    Part #408004X004

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

  • Hex Tube Skirt for Craftsman 917371031 - Part 188359X479

    Engine/housing/handle diagram

    Hex Tube Skirt

    Part #188359X479

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

  • Lawn Mower Transmission Shaft Support Bearing for Craftsman 917371031 - Part 408027

    Drive control/gear case/wheels diagram

    Lawn Mower Transmission Shaft Support Bearing

    Part #408027

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

  • Lawn Mower Drive Control Cable for Craftsman 917371031 - Part 426243

    Drive control/gear case/wheels diagram

    Lawn Mower Drive Control Cable

    Part #426243

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

  • Combination Screw for Craftsman 917371031 - Part 186159

    Engine/housing/handle diagram

    Combination Screw

    Part #186159

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

  • Lawn Mower Ground Drive Belt for Craftsman 917371031 - Part 408031

    Drive control/gear case/wheels diagram

    Lawn Mower Ground Drive Belt

    Part #408031

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

  • Up Control Cover for Craftsman 917371031 - Part 424630

    Drive control/gear case/wheels diagram

    Up Control Cover

    Part #424630

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

  • Handle Spring for Craftsman 917371031 - Part 420381

    Drive control/gear case/wheels diagram

    Handle Spring

    Part #420381

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

Craftsman Lawn Mower 917371031 FAQs

Gas walk-behind mowers like the Craftsman 917371031 are not being phased out everywhere at once, but new gas mower sales are trending downward as more areas adopt emissions rules and many homeowners switch to battery-electric models for lower noise and simpler maintenance. For repairs and upkeep, gas mowers remain widely supported.

What “phased out” usually means

Most changes focus on new equipment sales, not on owning, using, or repairing an existing mower.

  • Some states and cities restrict or plan to restrict sales of certain new gas-powered outdoor equipment
  • Retailers may stock fewer gas models as demand shifts to electric
  • Parts and service support typically continue for many years
  • Commercial and heavy-duty use cases often keep gas options in the market longer

What this means for your Craftsman 917371031

Your best move is to keep the mower safe and reliable with routine maintenance and correct replacement parts.

Common wear items to plan for:

  • Blade-related hardware and mounting parts
  • Drive and wheel components (on self-propelled models)
  • Cables and controls
  • Grass handling parts (bagging and discharge)

Helpful parts customers often replace

Symptom Likely area Example part for this model
Excess vibration or blade won’t stay tight Blade mounting Lawn mower blade adapter 532186766
Poor bagging or missing rear discharge coverage Discharge/bagging Lawn mower clipping deflector 583127101
Bag won’t collect well or is torn Grass catcher Lawn mower grass bag 532410670

Why it matters

Even if new gas mower sales decline in some regions, maintaining a working mower you already own is usually the most cost-effective option. The owner’s manual also emphasizes checking worn grass catcher components and using caution when servicing sharp blades. See the Craftsman 917371031 owner’s manual for safety and maintenance guidance.

Last updated: January 2026

On the Craftsman walk-behind mower model 917371031, the model number is printed on the mower’s identification sticker, which is typically on the back of the mower deck, between the lower handle mounts. You can also confirm the exact model format in the 917371031 owner's manual.

Where to look on the mower

Check these common ID-label locations first (starting with the most likely spot):

  • Back of the deck, between the lower handle mounts
  • Rear of the deck near the discharge opening or rear door area
  • Side of the deck near a wheel height adjuster
  • Near the engine mounting area on the deck (less common)

What you should write down

We recommend recording both identifiers so you can match the correct parts diagram and replacement parts.

  • Model number (example format: 917.371031)
  • Serial number (unique to your mower)
  • Engine brand and series (often Briggs & Stratton on this model family)
  • Any product description text (for example: “rotary lawn mower”, “power-propelled”)

Quick ID tips (so you do not miss it)

The label can be hard to see if the deck is dirty or faded.

Tip What to do
Clean first Wipe the deck with a damp rag so the sticker text is readable
Use better light Shine a flashlight across the sticker at an angle
Take a photo Zoom in on your phone to read worn characters
Match punctuation Craftsman model numbers often include a dot (example: 917.371031)

Why it matters

The model number is what ties your mower to the correct parts list and diagrams. Even small differences in a Craftsman walk-behind mower can change the correct blade, drive parts, or control cable.

Last updated: January 2026

The model number is 917.371031 (often written without the dot as 917371031) for this Craftsman rotary, power-propelled 21-inch lawn mower. You’ll see it printed on the model label and on the cover page of the 917371031 owner's manual.

Where to find the model number on the mower

We recommend checking the mower’s model label first, then matching it to the manual.

  • Look on the mower deck near the rear discharge area
  • Check around the rear handle mounting area
  • Inspect the engine shroud area (near the recoil starter)
  • Compare what you find to the model listing in the 917371031 owner's manual

Why the exact model number matters

Parts and diagrams are model-specific. Even small differences in a Craftsman walk-behind mower can change the correct blade, drive parts, or hardware.

Examples of parts that can vary by model

  • Drive control and cable routing
  • Wheel and gear case components
  • Blade and blade mounting hardware
  • Grass bag and chute components

Quick format guide (what you might see)

Where you see it Common format What it means
Model label on mower 917.371031 Official model number format
Parts lookup / search 917371031 Same model number without punctuation

If you are seeing a different number (like M210)

Some Craftsman mowers are marketed with a separate series name (example: “M210”), but the correct parts match comes from the full model number on the mower label. For this mower, use 917.371031 when ordering parts and referencing diagrams.

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.

Main causes: damaged cutting blade, loose cutting blade, damaged flywheel key, engine needs tune up…

Main causes: dirty carburetor, bad spark plug, clogged air filter, engine choke problems, clogged gas cap vent…

Main causes: drive control cable failure, worn or broken drive belt, bad transmission, broken drive wheel…

Main causes: stale gas, engine needs tune up, bad spark plug, dead battery, bad recoil starter, faulty safety switch, ba…

Main causes: engine needs tune up, dirty or clogged carburetor, damaged flywheel key…

Main causes: uneven wheel height settings, damaged wheel, dull or damaged cutting blade…

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.…

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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.…

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 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.

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Types of walk-behind mower blades video

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