Owner’s manual
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How much does it cost to replace a riding mower engine?
For a Craftsman riding mower like model 917276906, a full engine replacement typically costs $800 to $2,500+ total (engine plus labor). The final price depends on engine horsepower, whether it’s a direct bolt-on swap, and what else we replace while the engine is out.
What drives the total cost
- Engine price: New replacement engines commonly run $500 to $1,800+ depending on brand and HP.
- Labor: Most shops charge 2 to 6 hours for an engine swap (more if wiring, fuel system, or mounting changes are needed).
- Extra parts and supplies: Oil, filter, fuel line, clamps, battery service, and hardware often add $50 to $250.
- Related repairs found during teardown: Worn belts, pulleys, or electrical issues can add cost.
Typical cost ranges (parts + labor)
| Scenario | What’s included | Typical total cost |
|---|---|---|
| Budget swap | Used or basic replacement engine, minimal extras | $800 to $1,400 |
| Standard shop replacement | New engine, fluids, tune-up items, normal labor | $1,200 to $2,200 |
| Complex replacement | New engine plus wiring/fuel/exhaust changes or multiple add-on repairs | $2,000 to $2,500+ |
Smart add-ons while the engine is out
These items are inexpensive compared to the labor to access them later:
- Replace worn deck or drive belts (for example, the lawn tractor ground drive or blade drive belt, 1/2 x 92-2/5-in 592855201 if it matches your routing and application)
- Inspect idler pulleys for noise or wobble
- Clean battery terminals and check cables
- Change oil and filter after break-in (per the 917276906 owner’s manual)
Why it matters
A riding mower engine is the single most expensive component on the tractor. Pricing the job correctly helps you decide whether an engine swap makes sense versus repairing a no-start condition (battery, solenoid, fuel, or safety interlock issues) first.
Last updated: February 2026
How to find Craftsman model number?
On a Craftsman riding mower like model 917276906, we typically find the model number and serial number on the tractor frame under the seat area or on the underside of the seat itself. Confirming the exact model number ensures you get the right belts, blades, and electrical parts.
Where to look on model 917276906
Check these common ID tag locations first:
- On the frame under the seat (lift the seat and look down at the chassis rails)
- On the underside of the seat pan
- Near the rear fender or seat support bracket (around the seat hinge area)
- On a sticker or metal tag that lists both model and serial numbers
Use the diagrams and identification notes in the 917276906 owner's manual to match what you see on the tractor to the correct model format.
What to write down (and why)
Record both numbers exactly as shown.
- Model number: identifies the tractor configuration (deck, transmission, engine family)
- Serial number: helps confirm production run details for correct part fit
- Product description (if shown): can help when multiple similar models exist
Quick example
| What you see on the tag | What it’s used for |
|---|---|
| Model: 917276906 | Selecting the correct parts list and diagrams |
| Serial: (varies) | Confirming the right version when parts changed |
Why it matters
Many Craftsman tractors share similar frames, but parts like the PTO switch, starter solenoid, and ground drive belt can vary by model. Using the exact model number helps avoid ordering a belt length or electrical connector that does not match your wiring harness.
Last updated: February 2026
Is it worth fixing a riding lawn mower?
Yes, it’s worth fixing a Craftsman riding tractor like model 917276906 when the problem is a normal wear item (belt, pulley, switch) and the total repair cost stays well below the price of a comparable replacement mower. It’s usually not worth it when the repair involves major drivetrain or engine replacement.
Quick decision checklist (what we use)
- Age and hours: Under ~8 to 10 years old and maintained regularly usually justifies repair.
- Type of failure: Belts, idlers, PTO switch, and electrical no-start issues are typically cost-effective.
- Parts availability: If common parts are in stock, downtime and labor stay reasonable.
- Deck and frame condition: Heavy rust-through or cracked deck weldments push the decision toward replacement.
- Safety and reliability: If multiple safety devices are bypassed or failing, restore proper operation before investing further.
Common “worth fixing” repairs on 917276906
These are frequent, practical fixes that restore performance without major teardown:
- Replace a worn deck/ground drive belt such as the lawn tractor ground drive or blade drive belt, 1/2 x 92-2/5-in 592855201
- Replace a weak no-start component like the lawn tractor starter solenoid 582042802
- Fix intermittent blade engagement with the switch.pto 582107601
- Replace noisy or seized idler pulleys (common belt wear cause)
Cost comparison guide
| Repair type | Typical outcome | Usually worth it? |
|---|---|---|
| Belt, idler pulley, PTO switch | Restores drive or blade function | Yes |
| Starter solenoid, wiring, battery cables | Fixes click/no-crank | Yes |
| Transaxle replacement | High parts cost, high labor | Often no |
| Deck weldment replacement | High parts cost, may indicate broader wear | Depends |
Why it matters
A riding mower that’s cutting unevenly or losing drive can often be corrected with maintenance and wear-part replacement. The 917276906 owner’s manual also emphasizes safe service practices (shut off engine, remove key, wait for moving parts to stop) and routine checks that prevent small issues from turning into expensive failures.
Last updated: February 2026
What kind of engine does a Craftsman riding lawn mower have?
For the Craftsman riding lawn mower model 917276906, the engine type is a low-emission gasoline engine (the manual notes it operates differently than older designs). For the exact engine make, model, and horsepower rating used on your tractor, match the engine ID label on the engine to the specifications in the 917276906 owner's manual.
How to identify the exact engine on your tractor
Use these quick checks to confirm what you have before ordering tune-up parts (spark plug, air filter, fuel filter) or troubleshooting a no-start:
- Look for the engine ID label on the blower housing, valve cover, or near the starter
- Record the engine model, type, and code exactly as shown
- Compare that information to the product specifications section in the manual
- Note whether your tractor has electric start and what safety switches are present
- If the engine cranks but will not start, verify fresh fuel and a clean air filter first
Common engine configurations you may see (what to expect)
Many Craftsman front-engine lawn tractors in this family use a single-cylinder or V-twin gasoline engine; the exact horsepower varies by build and deck size.
| What you’re checking | Where to find it | Why it matters |
|---|---|---|
| Engine model/type/code | Engine label | Ensures correct filters, plug, and carb parts |
| Horsepower rating | Manual specs and engine label | Helps match performance expectations |
| Emissions design | Manual notes “low emission engine” | Affects starting, choke use, and maintenance |
Why it matters
Engine identification prevents wrong-part orders and speeds up troubleshooting. For example, if the engine clicks but won’t start, the manual points to common causes like a weak battery, corroded terminals, loose wiring, or a faulty solenoid or starter. If you suspect the solenoid, the lawn tractor starter solenoid 582042802 is a common starting-circuit replacement part for this model.
Related DIY help
- Use riding lawn mower engine clicks but doesnt turn over video if you hear a click but the engine does not crank.
- Use riding lawn mower engine spins but wont start video if it cranks normally but will not fire.
Last updated: February 2026
What model number is a Craftsman 6.75 lawn mower?
A “Craftsman 6.75” is a power rating, not a single mower model number. The model number is on the mower’s ID tag (usually on the rear deck or near the engine) and typically starts with 917. For your Craftsman riding tractor, the model number is 917276906; see the 917276906 owner's manual for where to find and read the ID label.
How to find the model number on a Craftsman 6.75 mower
Look for a sticker or metal tag and copy the full model number exactly.
- Check the rear of the mower deck (walk-behind mowers)
- Look near the engine mounting area or above the rear wheels
- Check under the bagger door or behind the height adjuster area
- Write down the full model number and any product number
- If the tag is dirty, wipe it clean so every digit is readable
What “6.75” means (and why it can be confusing)
“6.75” is commonly used to describe engine power on certain Craftsman walk-behind mowers. Many different mower models can share that same rating, so the model number is what we use to match the correct parts, diagrams, and manual.
Quick ID checklist (use this to match parts correctly)
| What you have | What to record | Why we need it |
|---|---|---|
| Walk-behind mower labeled “6.75” | Model number from the deck tag | Identifies the exact mower platform |
| Engine on the mower | Engine model and type (from engine label) | Matches tune-up parts like spark plug and air filter |
| Riding tractor on this page | 917276906 | Matches tractor parts and diagrams |
Why it matters
Using only “Craftsman 6.75” often leads to the wrong belt, blade, or air filter. The correct model number ensures you get the right replacement parts the first time.
Last updated: February 2026
