Craftsman 247887760 21" self-propelled mower Parts

To find the right MTD part for your Craftsman model 247887760 21-inch self-propelled mower, we match the part to the exact model and the correct diagram location (handle, deck, drive, or engine area). The fastest method is using the parts list and exploded views in the 247887760 owner's manual.

Step-by-step: match the part to the correct diagram

• Confirm the mower model number is 247887760 (from the product ID label).
• Identify the system you are working on: handle controls, deck/blade, drive, or grass bag.
• Use the exploded diagram to locate the part callout number and description.
• Cross-check the part description with how it mounts (bolt pattern, cable routing, left vs right).
• If the part is hardware (nut, bolt, knob), match thread size and length to the diagram listing.

Common MTD-style parts on this mower (examples)

These are examples of parts commonly replaced on model 247887760; matching by diagram prevents ordering the wrong version.

What you are fixing	Typical part type	Example from this model’s parts list
Blade will not sit tight or wobbles	Blade adapter	Lawn mower blade adapter 748-0377E
Handle will not stay locked	Handle knob	Yard Machines Lawn Mower Handle Knob 720-04072A
Self-propel drive slips or won’t pull	Drive pulley	Lawn Mower Drive Pulley 956-0613A
Bagging is poor or bag won’t attach	Grass bag	Lawn Mower Grass Bag 964-04093A

Quick checks before you order

• Compare the old part: shape, hole spacing, and any stamped numbers.
• Check fasteners: worn nuts/bolts can cause looseness; replace as needed.
• Confirm safety fit: shields, covers, and blade-control parts must fit correctly for safe operation.

Why it matters

MTD-built walk-behind mowers often have similar-looking parts across many models, but small differences (mounting holes, cable length, pulley diameter) change fit. Using the model 247887760 diagrams helps ensure correct fit and safe operation.

Last updated: February 2026

Common problems on the Craftsman 247887760 21-inch self-propelled mower are no-start or hard-start conditions, poor cutting or stalling in heavy grass, and self-propel drive issues (won’t pull or slips). Most causes trace back to fuel quality, airflow, ignition, or a drive control/traction component adjustment.

Most common symptoms and likely causes

• Won’t start / starts then dies: old fuel, dirty carburetor, fouled spark plug, clogged air filter
• Hard starting or “kickback” on the starter rope: flooded engine, incorrect starting technique, blade impact damage (possible flywheel key issue)
• Cuts unevenly or bogs down: dull/bent blade, grass buildup under deck, mowing too fast for conditions
• Self-propel won’t engage or is weak: drive control not fully squeezed, speed selection changed while drive is engaged, worn traction parts
• Excess vibration: blade damage or loose hardware after striking an object

Quick checks we recommend first (fast, no parts)

1. Use fresh gasoline and confirm the fuel shutoff (if equipped) is open.
2. Check the air filter and spark plug condition.
3. Clear packed grass from under the cutting deck (engine off, spark plug wire removed).
4. Verify you are using the drive controls correctly: squeeze the drive control to propel; release to disengage, and change speeds only with the drive released.
5. If the engine floods, wait a few minutes before restarting.

Operating and safety reminders

The manual emphasizes keeping hands and feet away from rotating parts and waiting for the blade to stop completely before servicing or removing the grass catcher. For model-specific control operation and starting steps, use the 247887760 owner’s manual.

When a part is commonly involved

If the mower was pulled backward, dropped, or the drive system feels inconsistent, inspect the rear wheel drive/traction hardware. A common wear item in the wheel drive area is the lawn mower pawl plate 16855.

Problem	What you notice	What to do next
Fuel delivery issue	Starts on prime/choke then dies	Drain old fuel; clean carburetor; replace plug/filter as needed
Flooded engine	Strong fuel smell; repeated no-start	Wait a few minutes; retry starting per manual
Drive issue	Mower won’t pull in self-propel	Confirm control use; inspect wheel drive parts

Why it matters

Catching fuel and drive issues early prevents hard starting, reduces engine wear, and helps the self-propel system deliver consistent ground speed and cut quality.

Last updated: February 2026

A “Craftsman 6.75” description usually refers to the engine horsepower class, not the mower’s model number. For your Craftsman walk-behind mower, the mower model number is typically printed on the mower’s ID label and is also referenced in the 247887760 owner's manual.

How to identify the correct model number

Use these quick checks so you order the right Craftsman parts (blade adapter, wheels, handle hardware) the first time:

• Look for the mower ID label on the rear deck, near the discharge area, or around the handle bracket area.
• The mower model number is a full number string (for this unit: 247887760).
• The engine has its own separate model number; it is not the mower model.
• Write down both the mower model and the engine model before ordering parts.
• Match the model number exactly; even one digit off can change the blade, drive system, or handle parts.

Mower model number vs. engine model number (what “6.75” usually means)

On Craftsman walk-behind mowers, “6.75” commonly points to the engine family rating. Your mower and engine each have their own identifiers.

What you’re identifying	Where it’s found	Example for this mower
Mower model number	Mower ID label on the deck/handle area	247887760
Engine model number	Engine shroud label or engine documentation	12S905-2732-B1

If you are trying to match a “6.75” mower to a parts list

If your goal is to find the correct parts diagram, use the mower model number first. Then use the engine model number for engine-specific items (spark plug, air filter, carburetor parts).

Common part categories that depend on the mower model number:

• Blade and blade mounting hardware
• Self-propel drive components (belt, pulleys, transmission linkage)
• Wheels, height adjusters, and axle parts
• Handle and control cables

Why it matters

Craftsman mowers can share similar engines across multiple decks and drive systems. Using the mower model number (like 247887760) ensures the parts you buy fit the deck, handle, and self-propel system, not just the engine.

Last updated: February 2026

The Craftsman 247887760 is not a riding mower; it is a 21-inch self-propelled walk-behind mower. The operator’s manual for model 247.88776 shows a document date of 11/18/2010, which places this mower’s documentation in 2010 (a good indicator of the mower’s era).

How to identify the exact build year on your mower

Use the model and serial information on the mower itself, then confirm it against the documentation in the 247887760 owner’s manual.

• Look for the model/serial tag on the mower deck, rear housing, or handle support area
• Record the serial number exactly as printed
• Check for an engine date code on the Briggs and Stratton engine label (your manual lists engine model 12S905-2732-B1)
• Compare any date codes to your purchase or service records
• If the tag is missing or unreadable, use the manual’s parts list and diagrams to match key assemblies

What “11/18/2010” means (and what it does not)

The manual date is a reliable way to place the product in time, but it is not always the same as the exact factory build date.

Item you find	What it tells you	Best use
Manual date (11/18/2010)	Documentation revision timeframe	Confirms the mower’s general production era
Mower serial number	Unit-specific identifier	Best path to the exact build year
Engine model/date code	Engine production timing	Helps narrow the mower’s build window

Why it matters

Knowing the correct year and configuration helps us match the right Craftsman and MTD-style parts (wheels, drive components, handle hardware) and prevents ordering a look-alike part that will not fit.

Last updated: February 2026

On the Craftsman walk-behind mower model 247887760, the mower model number is typically shown on the mower’s model tag, and the engine has its own separate model number on the engine label. For this mower, the manual references mower model 247.88776 and engine model 12S905-2732-B1 (the engine label is on the engine itself). See the 247887760 owner's manual for the exact label locations and diagrams.

What to look for on your mower

Use these quick checks to find the correct number for parts and service:

• Look for a mower model tag on the deck housing, rear of the deck, or near the handle mounting area.
• Check the engine label on the engine shroud or near the muffler area for the engine model.
• Write down the full model exactly as printed (including dots or dashes).
• Use the mower model for chassis parts (wheels, handle parts, drive system).
• Use the engine model for engine parts (spark plug boot, air filter, carburetor parts).

Mower model vs. engine model (why there are two)

What you’re identifying	Example for this unit	Used for
Mower model number	247887760 (also shown as 247.88776 in the manual)	Deck, wheels, handle, self-propel drive parts
Engine model number	12S905-2732-B1	Tune-up and engine components

Why it matters

Using the correct model number prevents ordering the wrong part. Many Craftsman mowers share similar decks and handles, but the engine family and sub-model can change the air filter, carburetor, and ignition parts.

Last updated: February 2026