Is it worth replacing a lawn mower engine?
Yes, replacing the engine on your Craftsman riding mower model 247204400 is worth it when the mower’s deck, transmission, and steering are in solid shape and the engine swap costs clearly less than replacing the entire mower. If the total repair cost is around half (or more) of a comparable new mower, replacement usually makes more sense.
Quick decision checklist
- The mower starts, drives, and steers well (no major transaxle or frame issues).
- The deck shell is not rusted through or cracked.
- You can complete the job safely (lifting, fuel handling, wiring, belt routing).
- You can reuse key wear items or replace them at the same time (belts, blades, hardware).
- The engine replacement cost plus labor stays well below the cost of a new mower.
Typical cost comparison (rule-of-thumb)
| Option | Upfront cost | Time/effort | Best when |
|---|---|---|---|
| Replace engine | Medium to high | Medium to high | Chassis and deck are excellent |
| Rebuild/short block | Medium | High | You want a project and have tools |
| Buy new mower | High | Low | Multiple systems are worn out |
Parts you often replace during an engine swap
Even when the engine is the main failure, we often see related wear items cause problems right after the swap.
- Ground drive belt (loss of drive, slipping): lawn tractor ground drive belt 954-05027A
- Blade drive belt (blades won’t stay engaged): mtd lawn tractor blade drive belt 954-05021
- Deck blade (poor cut, vibration): mtd lawn tractor 42-in deck 3-in-1 blade 942-0616A
- Starter electrical issues (no crank): battery cables, connections, and sometimes the solenoid
Why it matters
An engine swap can extend the life of a good Craftsman 247204400 by years, but it only pays off if the rest of the mower is not near end-of-life. Checking deck condition, belt wear, and drive performance first prevents spending engine money on a mower that still will not cut or drive correctly.
Where to confirm model-specific procedures
For the correct safety steps, belt routing, and control adjustments for model 247204400, follow the 247204400 owner’s manual.
Last updated: January 2026
How to identify a lawn mower engine?
To identify the engine on your Craftsman tight turn riding lawn mower model 247204400, locate the engine’s ID stamping or label on the engine shroud near the muffler and air cleaner; those numbers tell you the exact engine model and type so you can match the right parts and service info. Use the 247204400 owner's manual for the model-number label locations on the tractor itself.
Where to look on the engine (most common spots)
Check these areas with the engine cool and the key removed:
- Sheet metal shroud above the muffler (often stamped into the metal)
- Front of the engine near the air cleaner housing
- Valve cover area or nearby flat surfaces on the blower housing
- Sticker/foil label on the shroud (may be partially hidden by dirt)
- Engine block casting (less common for the full model, more for casting numbers)
What numbers you need (and what they mean)
Most mower engines use a small set of identifiers. Write them down exactly as shown.
| What you see on the engine | What it’s used for | Example format |
|---|---|---|
| Engine model / type | Correct tune-up and repair parts | 12Axxx, 31Rxxx, etc. |
| Spec or trim code | Exact carburetor, governor, and linkage variations | “Spec 1234” |
| Serial number | Production run and date range | Long numeric string |
Quick tips to read the tag correctly
- Clean the area with a rag and mild degreaser; avoid soaking electrical connectors.
- Use a flashlight at a low angle; stamped numbers show up better.
- Take a phone photo and zoom in; it reduces misreads (0 vs O, 1 vs I).
- If the label is missing, use the tractor model 247204400 plus the engine’s visible features (air filter style, carb layout) to narrow it down.
Why it matters
The tractor model number identifies the chassis and deck parts, but the engine model/type identifies engine-specific parts like the carburetor, starter, ignition switch wiring, and throttle/choke setup. Matching both prevents wrong-part returns and repeat repairs.
Last updated: January 2026
What motor is in a Craftsman 247204400?
The Craftsman model 247204400 tight turn riding lawn mower uses a gasoline vertical-shaft engine; the exact engine make, horsepower, and engine model number are listed on the engine ID label and in the 247204400 owner's manual. Use the engine’s model-type-code (or model-spec) to match tune-up and replacement parts correctly.
How to identify the exact engine on your mower
Check these locations and record the full ID exactly as shown:
- Engine shroud or valve cover area (common spot for the engine label)
- Blower housing near the recoil area (if equipped)
- Under the hood near the muffler shield
- Frame tag area (mower model tag is separate from the engine tag)
- Owner documentation section that lists engine specifications
What to write down (so parts match)
Most mower engines use a multi-part ID. Capture all fields:
| What you see on the label | Why we need it |
|---|---|
| Model | Identifies the engine family |
| Type / spec | Identifies the exact build configuration |
| Code / date | Helps match revisions and service parts |
| Displacement / HP (if shown) | Confirms you are shopping the right engine class |
Why it matters
Two Craftsman 247204400 mowers can use different engines across production runs. Using the engine’s full ID prevents ordering the wrong air filter, spark plug, starter solenoid, or drive components.
Related parts that are often confused with “motor” problems
If the engine cranks slowly, will not crank, or clicks, these mower parts are common suspects:
- Battery cables and terminals (corrosion or loose connections)
- Starter solenoid (a frequent no-crank cause)
- Ignition switch (worn contacts)
- Interlock switch (seat, brake, or PTO safety switch)
- Ground drive belt (loss of movement is not an engine failure)
If you are troubleshooting a no-crank condition, testing the start circuit with a meter is the fastest path; see how to use a multimeter to test electrical parts video.
Last updated: January 2026
What year was Craftsman 247204400 made?
Craftsman model 247204400 was produced during the mid-2000s, most commonly around 2004 to 2006. The most reliable way to confirm the exact build year for your specific mower is to match the product ID and date information shown in the 247204400 owner's manual.
How to confirm the exact year for your specific mower
Use these checks to pin down the build year when the model number alone is not specific enough:
- Locate the model and serial tag (typically under the seat, on the frame rail, or near the engine area).
- Write down the full serial number exactly as shown.
- Compare the serial number format and identification notes in the 247204400 owner's manual.
- If your mower has an engine data plate, record the engine model and code as well.
- Keep the deck size and key features noted (for example, 42-inch deck, tight-turn steering style) to avoid mix-ups with similar Craftsman models.
What “247” in the model number usually means
Many Craftsman riding mowers with model numbers starting with 247 were built for Craftsman by MTD. That helps explain why you will see MTD-style part numbers and components listed for this model.
Quick reference: model year vs. what you can verify
| What you have | What it tells you | Best next step |
|---|---|---|
| Model number: 247204400 | Identifies the product family/configuration | Use the manual’s ID section |
| Serial number tag | Identifies the specific production run | Decode/compare to manual info |
| Engine code plate | Often includes a date code | Cross-check with serial tag |
Why it matters
The exact production year affects parts fitment and revisions, especially for wear items like the ground drive belt, blade drive belt, and safety interlock components. Confirming the year before ordering helps avoid returns and downtime.
Last updated: January 2026





