What engine does Craftsman riding mower use?
The Craftsman lawn tractor model 917271661 uses a Briggs & Stratton single-cylinder engine; the engine model listed for this tractor is Briggs 310707-0137-E1. For the full engine breakdown and specifications, use the 917271661 owner's manual.
How to confirm the engine on your tractor
We recommend matching the manual listing to the ID labels on your mower so you order the right tune-up and repair parts.
- Check the engine ID tag on the engine shroud or valve cover area
- Match the model/type/code on the engine tag to your records
- Verify your tractor model number is 917271661 (typically under the seat or on the frame)
- Use the manual engine parts list when identifying components like the muffler, throttle/choke control, and oil drain tube
- If you are replacing drive components, confirm belt routing and pulley style before ordering
Common engine-related parts you may need
If you are troubleshooting starting, drive, or cutting issues, these parts are commonly involved on riding mowers like this one.
| Symptom | What to check first | Example part on this model page |
|---|---|---|
| Clicks but will not crank | Battery connections, wiring, starter solenoid | Solenoid with brass plunger 532146154 |
| Loss of power under load | Air filter, oil level, fuel quality, spark plug | Maintenance items listed in the manual |
| Poor cut or vibration | Blade condition, mandrel wear, deck buildup | Husqvarna lawn tractor mandrel assembly 532130794 |
Why it matters
The exact engine model (like 310707-0137-E1) determines the correct ignition parts, fuel system components, and service procedures. Using the right engine identification also helps prevent ordering the wrong solenoid, belts, or deck hardware.
If you need to order replacement parts for Craftsman 917271661, start with the parts list for this model, or search by model number on Sears PartsDirect.
Last updated: February 2026
What model number is the Craftsman 42 riding mower?
For the Craftsman front-engine lawn tractor with a 42-inch mower deck on this page, the model number is 917.271661 (often written without the dot as 917271661). You can confirm it on the ID label and in the 917271661 owner's manual.
How to confirm you have the right model
Use these quick checks before ordering parts or looking up specs:
- Check the model/serial tag under the seat, on the frame, or near the rear fender area
- Match the deck size listed on the tractor or deck (42-inch)
- Compare the engine and deck diagrams in the manual to what you see on your tractor
- If your tag is hard to read, clean it gently and take a photo in good light
Common model-number formats you may see
The same model can appear in a few different ways depending on where you’re reading it.
| Where you see it | Example | What it means |
|---|---|---|
| Owner’s manual cover | 917.271661 | Standard printed format |
| Parts listings and tags | 917271661 | Same model number without punctuation |
| “42-inch Craftsman” description | 42" mower deck | Deck size, not the model number |
Why it matters
The model number controls the exact parts match for your Craftsman lawn tractor, especially for deck and drive components like the husqvarna lawn tractor mulching blade, 21-in 532134149 and the lawn tractor ground drive belt, 1/2 x 82-in 532140294. Using the correct model number helps you avoid ordering parts that look similar but do not fit.
Last updated: February 2026
What year did Craftsman make the 917271661?
Craftsman model 917271661 was produced during the early-to-mid 2000s era for LT1000-style front-engine lawn tractors. To pin down the exact build year for your specific tractor, use the manufacturing date code on the tractor’s ID/serial label and confirm details in the 917271661 owner's manual.
How to find the exact year on your tractor
Look for the ID/serial sticker (commonly under the seat or on the frame near the rear). On many Craftsman 917-series tractors, the date is encoded in the serial or a separate date code.
- Park on a level surface, set the parking brake, and remove the key
- Lift the seat and inspect the frame and fender pan area for a label
- Write down the model number (917271661) and the serial number exactly
- Look for a date code on the label (often formatted as MMDDYY or similar)
- Use the manual’s identification and maintenance sections to confirm label location and format
What we can confirm from the model documentation
The documentation we have is clearly for TRACTOR model number 917.271661, and it shows this tractor uses a 42-inch mower deck and a Briggs engine listing (Briggs model 310707-0137-E1) in the parts breakdown. That combination is most commonly seen in Craftsman LT1000-era tractors.
Quick reference (what it tells you)
| Item in documentation | What it helps confirm | What it does not confirm |
|---|---|---|
| Model number 917.271661 | You have the correct tractor family | Exact production year |
| 42-inch deck listing | Deck size and compatible deck parts | Exact build date |
| Engine model listing | Engine family used on this configuration | Engine manufacture date vs tractor date |
Why it matters
The exact year affects parts fitment for wear items like blades, belts, mandrel components, and chassis hardware. For example, the deck breakdown for this model lists a 42-inch mulching blade; if you are replacing blades, matching the deck configuration helps avoid ordering the wrong part.
If you are shopping for deck parts, one common match shown for this model’s deck is the husqvarna lawn tractor mulching blade, 21-in 532134149. For broader parts lookup by model number, we also support search on Sears PartsDirect.
Last updated: February 2026





