Is it worth replacing a lawn mower engine?
Yes, replacing the engine on your Craftsman 247270250 rear-engine riding mower is worth it when the mower’s deck, frame, steering, and transmission are still solid and you plan to keep the machine for several more seasons. If the total engine swap cost approaches about half the price of a comparable new rider, replacement usually makes less sense.
Quick decision checklist
- The mower still drives smoothly and stops safely (brake works and can be adjusted).
- The deck is not rusted through and the blade area is not cracked.
- You can keep up with routine maintenance (oil, air filter, cooling fins, belts).
- The engine failure is major (low compression, thrown rod) rather than a tune-up issue.
- You have the tools and time for a project, or you are paying a shop and have a firm estimate.
Cost and value comparison
| Option | Best when | Typical outcome |
|---|---|---|
| Repair existing engine | Minor issues (fuel, spark, carb, starter) | Lowest cost, fastest turnaround |
| Replace engine (complete) | Engine is worn out but mower is in good shape | Fresh start; often the longest remaining service life |
| Replace the mower | Deck, transmission, steering, or frame also need work | Best overall value when multiple systems are failing |
What to inspect before you spend money
Use the 247270250 owner’s manual maintenance and safety guidance as your baseline. Pay special attention to items the manual calls out for frequent checks.
- Brake and safety: The manual recommends checking brake operation frequently; if it will not hold adjustment, fix that first.
- Blade and mounting hardware: The manual stresses keeping nuts/bolts tight and inspecting blades for damage; excessive vibration can signal blade or spindle issues.
- Belts and pulleys: Check belt condition and idler pulleys; a worn pulley can shred a new belt quickly.
- Cooling and debris: The manual advises cleaning debris from the engine area and cooling fins; overheating shortens engine life.
Why it matters
An engine swap only pays off when the rest of the rider is safe and serviceable. If the deck, belts, brakes, and blade system are already near end-of-life, you can end up chasing repairs after the new engine is installed.
Last updated: January 2026
How to identify a lawn mower engine?
On a Craftsman rear-engine riding mower model 247270250, you can identify the engine by locating the engine identification label or stamping on the engine shroud (sheet metal) near the muffler and air cleaner area. Use that engine model and type information when ordering tune-up parts and service items listed in the 247270250 owner's manual.
Where to look on the engine
Common engine ID locations on rear-engine riders include:
- Stamped or labeled on the sheet metal directly above the muffler (muffler can be on the right or left side)
- On the front of the engine shroud near the air cleaner housing
- Near the blower housing or recoil starter area (if equipped)
- On a label on the valve cover or engine block (varies by engine maker)
What to write down (so you get the right parts)
Record the engine information exactly as shown:
- Engine manufacturer (often Briggs and Stratton, Kohler, or similar)
- Engine model number
- Type or trim number
- Code or date code (helps match the correct carburetor, ignition, and governor parts)
Quick reference table
| What you see on the engine tag | Why it matters |
|---|---|
| Model number | Identifies the engine family and core parts |
| Type/trim | Matches carburetor, air cleaner, muffler, and linkage variations |
| Code/date code | Helps match production changes and correct replacement parts |
Why it matters
The mower model number (247270250) identifies the tractor and deck parts, but the engine model and type identify engine-specific parts like the spark plug, air filter, and fuel system components. Accurate ID also supports correct maintenance intervals and safe service practices described in the 247270250 owner's manual.
Last updated: January 2026
How do I find out what year my mower is?
To find the year of your Craftsman rear-engine riding mower model 247270250, use the model and serial number from the product ID label; the serial number is what typically ties to the manufacturing date. The label is usually on the frame under the seat or near the engine area. See the 247270250 owner's manual for label locations and identification details.
Where to find the model and serial number label
On riding mowers like the Craftsman 247270250, the ID label is commonly placed where it stays readable but protected from debris.
Check these spots first:
- Under the seat on the seat pan or rear fender area
- On the frame rail near the rear wheels
- Near the engine, typically on the frame close to the muffler side
- Near the footrest area on the chassis
- Inside the utility bed area (if equipped) near the frame
How to use the serial number to determine the year
Once you have the serial number, use it to match the mower to a manufacturing date format (varies by manufacturer and production run). For many Craftsman and MTD-built units, the serial number contains a date code or can be cross-referenced by parts lookup.
Use this quick process:
- Write down the full model number (247270250) and the full serial number
- Take a clear photo of the label for accuracy
- Compare the serial format to the identification section in the 247270250 owner's manual
- If the label is damaged, look for a second label or a stamped number on the frame
If the label is missing or unreadable
If the sticker is worn off, you can still narrow down the mower’s age using parts and configuration clues.
| What you can check | What it tells you |
|---|---|
| Engine model/type plate | Engine build date range |
| Deck and drive belt part numbers | Helps match to a production era |
| Safety labels and control layout | Often changes between generations |
| Parts diagrams for 247270250 | Confirms the correct build family |
Why it matters
Knowing the year helps us match the correct OEM parts (belts, blades, pulleys, brake components) and avoid ordering look-alike hardware that does not fit your exact build.
Last updated: January 2026
What model number is the Craftsman 247270250 42 riding mower?
The model number for the Craftsman rear-engine riding mower on this parts page is 247270250. You’ll find this same model number printed on the mower’s model tag and referenced throughout the 247270250 owner's manual for parts lists and service information.
Where to find the model number on the mower
We recommend checking the mower’s model tag first, since it confirms you’re ordering the right parts for your exact unit.
- Look for a sticker or metal tag under the seat or on the seat pan
- Check the frame near the rear fender area
- Look around the engine compartment or rear frame rails
- Wipe dirt and grass buildup off the tag so all digits are readable
- Write down the full model number exactly as shown: 247270250
Why the model number matters for parts
Craftsman riding mowers can look similar across multiple model series, but hardware and drive components can differ by model. Using 247270250 helps match the correct diagrams and parts list.
| What you’re doing | Why the model number helps |
|---|---|
| Ordering belts, blades, or pulleys | Ensures correct length, width, and mounting style |
| Replacing transmission or brake parts | Prevents mismatched housings, shafts, or brake components |
| Looking up fasteners and hardware | Confirms thread size and flange/lock style |
Examples of parts tied to model 247270250
If you’re shopping for common wear items, these are examples of parts listed for this model.
- Mtd lawn tractor screw 710-0599 (used in multiple assemblies)
- Puck brake 717-0678 (brake component in the transmission/brake group)
- Bearing 741P0919B (bearing used in pulley/bracket applications)
Why it matters
A single missing digit or using a “close” model number often leads to the wrong belt routing, incorrect blade fit, or hardware that will not thread correctly. Confirming 247270250 up front saves time and returns.
Last updated: January 2026





