Owner’s manual
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How much does it cost to replace a riding lawn mower engine?
Replacing the engine on a Craftsman lawn tractor model 917275400 typically costs $800 to $2,500 installed (engine plus labor). The total depends on whether you choose a new or used engine, how much shop labor runs locally, and whether related drive or electrical parts need attention.
What makes the price go up or down
- Engine choice: new OEM-style replacement vs. used or rebuilt engine
- Labor time: riding mower engine swaps commonly take 4 to 8 hours
- Extra parts found during teardown: belts, pulleys, wiring, fuel lines, battery cables
- Shop rates: higher hourly rates raise the installed total quickly
- Why the engine failed: overheating, low oil, or debris buildup can damage other components too
Typical cost breakdown
| Cost item | Typical range | Notes |
|---|---|---|
| Engine (part only) | $500 to $1,800 | Varies by horsepower and crankshaft configuration |
| Labor | $300 to $900 | Often 4 to 8 hours depending on access and rust |
| Misc. parts and fluids | $25 to $200 | Oil, filter, clamps, hardware, belts as needed |
Before you replace the engine, check these common “no-start” causes
Many tractors get quoted for an engine when the issue is actually starting or safety interlock related. Our 917275400 manual troubleshooting points to items like battery condition, cable connections, fuses, wiring, ignition switch, solenoid, and starter.
- Recharge or replace the battery
- Clean and tighten battery terminals and cables
- Check the fuse and wiring connections
- Test the ignition switch and solenoid
- Verify the brake pedal and attachment clutch are set correctly for starting
For step-by-step checks, use the 917275400 owner's manual.
Why it matters
An engine replacement is one of the highest-cost repairs on a riding mower. Confirming the problem first can save hundreds of dollars and get you back to mowing faster.
Last updated: January 2026
What engine does Craftsman riding mower use?
The Craftsman lawn tractor model 917275400 is an 18.0 HP riding mower with a low-emission engine and electric start. The owner’s manual for this model does not identify the engine brand; use the engine ID label on the engine shroud to match the exact replacement parts.
How to identify the exact engine on model 917275400
Use these quick checks to confirm the engine make and model before ordering ignition, carburetor, or starter parts:
- Look for an engine model/type/code sticker on the blower housing (top or side of the engine).
- Check the valve cover or starter housing for a stamped model number.
- Record the spec number (often needed to match tune-up parts).
- Compare the engine label details to the specifications section in the 917275400 owner's manual.
- If the label is missing, use the tractor’s serial number and the engine’s physical features (air filter style, fuel tank location) to narrow it down.
Common engine-related symptoms and what they usually point to
If you are asking because the tractor will not start or runs poorly, these are the most common causes:
- Clicks but will not crank: weak battery, bad solenoid, loose battery cables
- Cranks but will not start: stale fuel, clogged carburetor jet, fouled spark plug
- Starts then dies when you release the brake: safety interlock switch issue
- Runs rough under load: dirty air filter, old fuel, partially clogged fuel line
A good next step is our riding lawn mower engine spins but wont start video if the starter turns the engine but it will not fire.
Specs you can rely on from the manual
The manual confirms these tractor-level specs (useful when matching deck and blade parts):
| Item | What we know for 917275400 |
|---|---|
| Horsepower rating | 18.0 HP |
| Deck size | 42 in |
| Cutting height range | Approximately 1-1/2 in to 4 in |
| Blade bolt torque | 27 to 35 ft-lb |
Why it matters
The tractor model number (917275400) tells us the chassis and deck family, but engine parts are matched by the engine’s own model/type code. Confirming the engine ID prevents ordering the wrong ignition parts, carburetor parts, or tune-up components.
Last updated: January 2026
Who makes Craftsman push mower engines?
Craftsman push mower engines are typically supplied by major small-engine manufacturers such as Briggs & Stratton, Kohler, and Kawasaki; the exact maker depends on the specific mower model and engine family. For your Craftsman lawn tractor model 917275400, the engine parts listing in the 917275400 owner's manual helps you identify the engine family used on that tractor.
How to tell who made the engine on your Craftsman mower
We recommend identifying the engine by its engine model and type code (usually on a label or stamped into the blower housing). Once you have that, the manufacturer is clear.
- Look for an engine ID label near the recoil starter, valve cover, or blower housing
- Write down the engine model and type code (and any spec number)
- Match that engine ID to the parts list and diagrams in the manual
- Use the engine ID (not the mower model) when ordering engine-specific parts like filters, carburetor parts, or ignition components
Quick comparison: mower model vs. engine model
| What you have | What it tells you | What to use for parts |
|---|---|---|
| Craftsman mower model number | The chassis and deck platform | Mower and deck parts (blades, belts, spindles) |
| Engine model/type code | The engine manufacturer and exact engine build | Engine parts (spark plug, air filter, starter, carburetor) |
Why it matters
Two Craftsman mowers that look similar can use different engines. Using the engine model/type code prevents ordering the wrong tune-up parts and speeds up troubleshooting for no-start, hard-start, or poor-running symptoms.
Related DIY help
If your mower is having starting trouble, follow the steps in riding lawn mower engine spins but wont start video to narrow the issue to fuel, spark, or compression.
Last updated: January 2026
What year was Craftsman 917275400 made?
Craftsman model 917275400 is part of the Craftsman 917-series lawn tractor family that was commonly sold in the mid-2000s (about 2004 to 2006). For the most accurate date range tied to your exact tractor, we recommend confirming the product identification details listed in the 917275400 owner's manual.
How to confirm the exact build date on your tractor
We use the model number to match parts and manuals, but the exact production date is typically tied to the ID label and any engine tag information.
- Locate the tractor ID label (often under the seat, on the frame rail, or near the rear fender pan)
- Write down the model number (917275400) and any serial number
- Check the engine identification tag (engine model and code can indicate build timing)
- Compare label information to the identification section in the 917275400 owner's manual
- If you are ordering parts, match by model and the correct diagram section (chassis, steering, mower deck)
Why the “year” matters for parts and repairs
Even within the same model family, small running changes can affect fitment for wear items like blades, mandrel parts, and chassis hardware.
Common examples on this model include:
- Mower deck blade style (mulching vs high-lift)
- Mandrel and pulley configurations
- Steering and axle hardware
- Hood, dash, and chassis enclosure variations
Quick parts examples that can vary by configuration
| Area | Example part | What it affects |
|---|---|---|
| Mower deck | Husqvarna lawn tractor mulching blade, 21-in 532134149 | Cut quality and mulching performance |
| Mower deck | Lawn tractor 42-in deck high-lift blade 532138971 | Bagging and discharge lift |
| Steering | Husqvarna lawn tractor ring clip 812000029 | Steering linkage retention |
Why it matters
Knowing the correct production window helps us steer you to the right diagrams and compatible Craftsman parts, especially for deck and steering components where small revisions are common.
Last updated: January 2026
