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What model number is the Craftsman 917271842 riding mower?
The model number for this Craftsman riding mower is 917.271842 (often written without the dot as 917271842). You can confirm it on the identification label and in the Craftsman 917271842 owner's manual.
Where to find the model number on the tractor
Check these common spots on Craftsman front-engine lawn tractors:
- Under the seat on the frame or seat pan area
- On the rear fender or near the seat bracket
- On the left or right side of the frame rail
- Near the engine compartment on the chassis
- In the manual’s front pages under “Model No.”
Why you might see a different number online
Some listings show a “series,” “product,” or retailer listing number instead of the true Craftsman model number. Use 917.271842 when ordering parts like a blade, belt, mandrel, or ignition key.
Quick ID check
| What you see | What it usually means | What to use for parts |
|---|---|---|
| 917.271842 | Actual Craftsman model number | Use this |
| 917271842 | Same model number, different format | Use this |
| A different alphanumeric code | Listing/series/retailer identifier | Do not use for parts lookup |
Why it matters
Using the exact model number ensures you get the right diagrams and compatible parts for your 42-inch deck and tractor configuration, especially for fit-critical items like the ground drive belt and mower deck components.
Last updated: February 2026
What year is my Craftsman mower serial number lookup?
For Craftsman lawn tractor model 917271842, the most reliable way to determine the year is to match your tractor’s product/serial number label to the identification details and parts information in the 917271842 owner's manual. On many Craftsman-built tractors, the serial number format can also include a date code, but the label location and format vary by production run.
Where to find the serial number (and what to write down)
Look for a sticker or metal tag in one of these common spots:
- Under the seat pan or on the seat support
- On the frame rail near the engine
- On the rear frame near the hitch plate
- Under the hood near the dash tower
- Near the mower deck lift area
Record these exactly as shown:
- Model number (should read 917.271842 or 917271842)
- Product number (if listed)
- Serial number (letters and numbers)
How “date-coded” serial numbers are commonly interpreted
Some Craftsman serial numbers include a build date code. A common pattern you may see is a 6-digit date segment:
- MMDDYY (month, day, year)
- YYMMDD (year, month, day)
Quick comparison table
| Example date code | Interpreted as | Build date |
|---|---|---|
| 072811 | MMDDYY | July 28, 2011 |
| 110728 | YYMMDD | July 28, 2011 |
If your serial number contains a 6-digit block like this, compare both patterns and use the one that matches a valid month (01-12) and day (01-31).
Why it matters
Knowing the correct year helps us match the right parts and diagrams for your exact production run, especially for wear items like mower deck components, belts, and blades (for example, the husqvarna lawn tractor mulching blade, 21-in 532134149 listed for this model’s 42-inch deck).
Tips to avoid a wrong year match
- Do not use the engine model number to date the tractor; the tractor and engine can have different build dates.
- If the label is faded, take a clear photo and copy every character.
- Use the manual’s identification and repair parts sections to confirm you are decoding the correct number.
Last updated: February 2026
What engine does Craftsman riding mower use?
For Craftsman lawn tractor model 917271842, the owner's manual identifies it as a 21.0 HP, electric-start front-engine lawn tractor with a 42-inch mower deck. The manual excerpt does not name the engine manufacturer, so we use the manual specs to match the correct tune-up and repair parts.
How to identify the exact engine on model 917271842
The most reliable way is to read the engine ID plate on the engine itself, then confirm it against the tractor documentation in the 917271842 owner's manual.
- Look for a sticker or stamped plate on the blower housing or valve cover
- Record engine brand (commonly Briggs & Stratton, Kohler, or Tecumseh on tractors of this era)
- Record model, type, and code numbers (or spec number)
- Use those numbers when ordering engine-specific parts (air filter, spark plug, fuel filter)
- If the label is missing, use the tractor’s model number 917271842 plus the engine’s physical features (carburetor style, muffler shape) to narrow it down
What we can confirm from the manual (and what it means)
The manual excerpt for this tractor provides these key specs, which help you choose compatible deck and drive components even before you confirm the engine brand.
| Item | What the manual shows | Why it matters |
|---|---|---|
| Horsepower | 21.0 HP | Helps match correct performance class parts and service procedures |
| Starting system | Electric start | Points to battery, starter, solenoid, and safety interlock checks |
| Deck size | 42-inch mower deck | Determines blade, mandrel, belt, and deck hardware fit |
Related parts you may need (deck and drive)
If you are troubleshooting cutting performance or vibration, these model-matched parts are common starting points:
- Husqvarna lawn tractor mulching blade, 21-in 532134149 (deck cutting performance)
- Husqvarna lawn tractor mandrel assembly 532130794 (blade spindle support)
- Lawn tractor ground drive belt, 1/2 x 82-in 532140294 (forward/reverse drive issues)
Why it matters
Engine brand and engine code determine the correct maintenance parts and settings, but the tractor manual specs (21.0 HP, electric start, 42-inch deck) keep you aligned on the right Craftsman 917271842 platform for deck, chassis, and drive repairs.
Last updated: February 2026
What model number is the Craftsman 917271842 engine?
The Craftsman lawn tractor model 917271842 is equipped with a Briggs & Stratton engine model 461707 with type number 0147-E1. We list this exact engine identification in the engine section of the 917271842 owner's manual, and it is the number to match when ordering engine-specific parts.
Where to confirm the engine model and type on your tractor
Use the engine’s ID label so you match what is actually installed.
- Look for the Briggs & Stratton ID label on the blower housing (recoil/shroud area)
- Also check near the starter or valve cover if the label is hard to see
- Wipe off dirt and oil so every digit is readable
- Record the model and type exactly, including the dash and suffix
- Use the engine ID (not just tractor model 917271842) when selecting carburetor, ignition, and gasket parts
Engine ID format used for this model
| ID item | What it looks like | For model 917271842 |
|---|---|---|
| Engine model | 6-digit number | 461707 |
| Type number | 4 digits + suffix | 0147-E1 |
| Full engine ID | model-type | 461707-0147-E1 |
Why it matters
Briggs & Stratton engines can share the same model family across many Craftsman tractors, but the type number controls the exact configuration. Matching 461707-0147-E1 helps ensure correct fit for fuel, exhaust, and tune-up components.
Last updated: February 2026
Is it worth replacing a lawn mower engine?
Yes; replacing the engine on your Craftsman lawn tractor 917271842 is worth it when the deck, chassis, and drive system are still solid and the total swap cost stays well below the cost of a comparable new riding mower. If multiple major systems are worn, replacement is the better value.
Quick decision checklist
- Deck is not rusted through and the housing is not cracked
- Tractor drives without slipping or repeated loss of drive
- Steering and braking feel normal and safe
- You can handle basic mechanical work (battery, fuel, belts, blade removal)
- Total repair cost stays under about 50% of a comparable new mower
Cost and value guide
| What you find | Best choice | Why it matters |
|---|---|---|
| Strong deck and chassis; engine is the main failure | Replace engine | You keep a good platform and restore reliability |
| Engine plus drive or steering problems | Replace mower | Multiple big repairs stack up fast |
| Deck damage or chronic vibration from spindles/mandrels | Replace mower | Cut quality stays poor even with a new engine |
What to inspect on model 917271842 first
Follow the safety and maintenance guidance in the 917271842 owner's manual before deciding.
- Deck and cut quality: clean built-up grass; worn or bent blades and bent mandrels cause vibration and poor cut
- Drive system: a worn belt can mimic bigger problems; replacing the belt often restores drive
- Fuel and ignition basics: water in fuel, loose spark plug wire, dirty cooling fins, or a clogged muffler can look like “bad engine” symptoms
Parts that often pair with keeping the tractor
- Lawn tractor ground drive belt, 1/2 x 82-in 532140294 (common fix for loss of drive)
- Husqvarna lawn tractor mandrel assembly 532130794 (helps address vibration from a worn/bent mandrel)
Why it matters
An engine swap only pays off when the rest of the tractor is dependable. Checking the deck, drive belt, and vibration sources first prevents spending money and still ending up with poor cut quality or unreliable driving.
Last updated: February 2026
