Owner’s manual
How much does it cost to repair a hydrostatic transmission on a lawn mower?
Hydrostatic transmission repairs are typically a riding-mower cost; your Craftsman 24738510 walk-behind mower normally does not use a hydrostatic transmission. For mowers that do, total repair cost commonly ranges from a few hundred dollars for minor service to $1,300 or more for a transmission, and up to about $2,500 for a full replacement with labor.
What to check on a Craftsman 24738510 first
Many “won’t move” complaints on a walk-behind mower come from drive-control or wheel issues, not a hydrostatic unit.
- Confirm the engine is off and the spark plug wire is disconnected before inspecting anything
- Check the drive control cable for stretching, binding, or a loose attachment point
- Inspect wheels for damage, wobble, or seized bearings
- Look for impact damage after striking an object; vibration is a strong clue something is bent or loose
- Verify the blade area is not obstructed and the deck is not packed with wet grass
For model-specific safety and maintenance steps, follow the owner's manual.
Typical cost ranges (for mowers that actually have hydrostatic drive)
Costs vary most by mower type (residential vs. heavy-duty), whether the transmission is serviceable, and labor time.
| Scenario | What’s usually involved | Typical total cost |
|---|---|---|
| Minor hydrostatic service | Fluid, purge procedure, linkage adjustment | $150 to $400 |
| Major repair | Internal repair or rebuild (when available) | $400 to $1,200 |
| Full replacement | New transmission plus labor | $1,300 to $2,500 |
Why it matters
If you price a hydrostatic repair for a walk-behind mower like the Craftsman 24738510, you can end up chasing the wrong problem. On this model, it is more effective to diagnose the drive controls, wheels, and deck-related drag first.
Parts that commonly relate to “vibration” or poor cutting (often mistaken for drive trouble)
If the mower vibrates heavily or cuts unevenly after hitting something, check the blade mounting stack.
- Lawn mower 22-in deck mulching blade 942-0742A
- Mtd lawn mower blade adapter 748-0376E
- Lawn mower blade support 736-0524B
If you need additional parts beyond what’s listed for this model, we also offer model search on Sears PartsDirect.
Last updated: February 2026
How to find Craftsman model number?
Your Craftsman walk-behind mower model number is printed on the mower’s model tag; on model 24738510, it’s typically on the rear of the deck housing near the discharge area or rear skirt. Use that exact number to match the correct parts list and diagrams in the 24738510 owner's manual.
Where to look on a Craftsman walk-behind mower
Check these common model-tag locations first (wipe off grass and dirt so you can read it clearly):
- Rear of the mower deck (back edge of the cutting deck)
- Near the rear discharge or mulching door area
- On or near the rear skirt (the back deck panel)
- Around the handle mounting brackets on the deck
- Near the engine mounting area on the deck (less common)
What to write down (and why)
Record the information exactly as shown on the tag.
| Item on tag | Example | Why it matters |
|---|---|---|
| Model number | 24738510 | Ensures diagrams and parts match your exact mower |
| Serial number | (varies) | Helps confirm production run and correct revisions |
| Engine model | 10T802-0776-B1 | Helps match engine-specific tune-up and fuel parts |
Why it matters for ordering the right parts
Craftsman model families can look similar but use different blade adapters, control cables, and handle hardware. Once you confirm 24738510, you can confidently match common wear parts like the mulching blade and blade mounting hardware.
If you’re replacing cutting components, compare what you see on your mower to the diagrams and consider these common matches for this model:
- Lawn mower 22-in deck mulching blade 942-0742A
- Mtd lawn mower blade adapter 748-0376E
- Lawn mower blade support 736-0524B
For additional parts lookups by model number, we also support search on Sears PartsDirect.
Last updated: February 2026
What are the common problems with Craftsman lawn mowers?
Common problems on the Craftsman 24738510 gas walk-behind mower are no-start or hard-start conditions (fuel, priming, spark), stalling from flooding, uneven cutting from mismatched wheel height settings, and vibration or poor cut from a dull or damaged blade. Use the starting and safety steps in the 24738510 owner's manual.
Most common symptoms and what to check first
- Won’t start / hard to start: confirm fresh fuel, correct priming, and proper starting technique.
- Starts then dies: the engine may be flooded; wait a few minutes and restart without priming.
- Uneven cut: set all four cutting height levers to the same position.
- Excess vibration or ragged cut: sharpen or replace the blade; inspect the blade mounting hardware.
- Clippings clump under deck: avoid cutting wet grass; clean buildup and adjust mowing pace.
Model-specific starting basics (24738510)
Our manual for model 24738510 calls out these key points:
- For first start: prime 5 times.
- For normal starts: prime 3 times, about 2 seconds between pushes.
- Hold the blade control handle against the upper handle while starting.
- Pull the recoil rope slowly to resistance, then pull with a rapid full-arm stroke.
Quick reference table
| Problem | Likely cause | What we do next |
|---|---|---|
| Won’t start | Old fuel, incorrect priming, spark issue | Refresh fuel, prime correctly, check spark plug connection |
| Rope “kicks back” | Pulling technique, engine kickback | Use the slow-to-resistance then fast-pull method |
| Uneven cut | Height levers not matched | Set all four levers to the same notch |
| Poor cut quality | Dull blade | Sharpen or replace the blade |
Parts that commonly get involved
If you’re seeing vibration, poor cutting, or blade fit issues, these model-matched parts are often involved:
- Lawn mower 22-in deck mulching blade 942-0742A
- Mtd lawn mower blade adapter 748-0376E
- Lawn mower blade support 736-0524B
Why it matters
Starting and cutting issues often come from a small setup detail (priming, blade control handle position, or cutting height levers). Fixing those first prevents unnecessary parts replacement and helps the mower cut evenly and safely.
You can order replacement parts for Craftsman 24738510 from the parts list for this model, or search by model number on Sears PartsDirect.
Last updated: February 2026
