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Where can I find the Craftsman lawn mower model number?
On your Craftsman garden tractor, the model number is on the tractor’s identification label; for this unit it’s 917275280. Use that full number when ordering parts so you get the correct mower deck, drive, steering, and electrical components for your exact tractor.
Check these common ID-label locations first (clean the area if it’s dusty or oily):
- Under the seat pan or on the seat support area
- On the frame rail near the engine compartment
- Near the rear fender or hitch plate area
- Around the footrest running board area
- Under the hood on the chassis (less common)
Use the model number for parts lookup; other numbers on the tractor are often engine-only or manufacturing codes.
| Label item | What it’s for | Use it to order parts? |
|---|---|---|
| Model number (example: 917275280) | Identifies the tractor and deck family | Yes |
| Engine model/type/code | Identifies the engine only | Only for engine parts |
| Serial number | Production tracking | Sometimes requested |
- Write the model number exactly as shown (all digits).
- If the label is worn, take a photo and zoom in.
- Match the punctuation style if shown (some labels use dots like 917.275280).
- Confirm the product description in the 917275280 owner’s manual to ensure you’re working from the correct tractor manual.
Craftsman tractors can look similar across years, but parts like the mower deck belt, PTO switch, and idler pulleys vary by model. Using 917275280 prevents ordering the wrong components and saves time during repairs.
Last updated: February 2026
What kind of engine does a Craftsman riding lawn mower have?
The Craftsman riding mower model 917275280 is equipped with a low-emission gasoline engine and is sold as a 27.0 HP garden tractor with electric start and an automatic transmission. For the exact engine make and model (as labeled on the engine), use the identification steps in the owner's manual.
From the model 917275280 documentation, these are the key engine-related details you can rely on:
- 27.0 HP rating for this tractor configuration
- Low-emission engine (operates differently than older designs)
- Electric start
- Automatic transmission (separate from the engine, but part of the powertrain setup)
- Designed for a 48-inch mower deck setup
Engine suppliers can vary by production run, so the most accurate way is to read the engine’s ID label directly.
- Turn the engine off and let it cool completely
- Lift the hood and locate the engine ID tag (often on the blower housing, valve cover, or near the starter)
- Write down the model, type, and code (or serial) from the tag
- Match those numbers to the engine section in the owner's manual
- Use the engine ID when ordering tune-up parts like filters, plugs, and belts
| What to record | Where you’ll use it | Why it matters |
|---|---|---|
| Engine model/type/code | Parts lookup and service | Ensures correct carburetor, ignition, and tune-up parts |
| Tractor model 917275280 | Tractor diagrams and chassis parts | Ensures correct deck, steering, and drive parts |
Knowing the exact engine identification prevents mismatched parts and troubleshooting steps, especially for ignition, fuel, and charging issues. It also helps you follow the correct maintenance schedule for this low-emission engine design.
Last updated: February 2026
Is it worth replacing a lawn mower engine?
Yes, replacing the engine on your Craftsman 917275280 garden tractor is worth it when the mower deck, steering, and transmission are solid and you want more years out of the machine. It is usually not worth it when the tractor has multiple worn systems and the total repair cost approaches the price of a replacement tractor.
- The deck shell is not rusted through and the spindles are not loose
- The tractor still drives strongly (no slipping, no loss of drive)
- Steering and front axle are tight (no severe wobble)
- You can do the work safely (engine off for adjustments and repairs)
- You can still get common wear parts like belts, pulleys, and switches
| Scenario | Engine swap value | Why |
|---|---|---|
| Deck and drivetrain are in good shape | High | You are restoring the most expensive component while keeping a usable chassis |
| Deck is damaged or mandrels are failing | Low | You can end up chasing multiple repairs after the engine is replaced |
| You need reliability for weekly mowing | High | A new engine reduces downtime and starting issues |
| Several systems are worn (drive, steering, electrical) | Low | Total cost and time usually exceed the benefit |
- Deck and blade system: Blades must be sharp and not bent; blade bolts must tighten securely (the manual calls out 45 to 55 ft-lb for blade bolt torque). Use the blade care and removal steps in the 917275280 owner’s manual.
- Blade drive components: If blades will not rotate, common causes include a worn mower drive belt or a frozen idler pulley. A known wear item is the lawn tractor blade idler pulley 532177968.
- PTO engagement: If the deck clutch will not engage consistently, check the PTO switch and wiring; the pto switch 582107601 is a common electrical control part.
An engine replacement only pays off when the rest of the tractor is safe and mechanically sound. If the deck, belt path, and safety interlocks are already marginal, you can spend more time and money after the swap than you save.
Last updated: February 2026
What kind of oil do you use in a Craftsman lawn tractor?
For the Craftsman 917275280 front-engine lawn tractor, we use 4-cycle engine oil and choose the viscosity by temperature: it ships with summer-weight oil, and for cold-weather operation you switch to a lighter viscosity for easier starting (per the oil viscosity chart in the owner's manual).
- 4-cycle engine oil (never mix oil with gasoline)
- Summer use: the tractor is factory-filled with summer-weight oil
- Cold weather: change to the recommended cold-weather viscosity shown in the manual’s viscosity chart
- Top off correctly: add oil only to the FULL mark on the dipstick
- Avoid overfilling: overfilling can cause smoking, leaks, and poor performance
- Park on level ground.
- Remove the oil fill cap/dipstick; wipe it clean.
- Reinsert the dipstick and rest the cap on the tube (do not thread it in), then remove and read.
- Add small amounts of oil until the level reaches FULL.
| Operating conditions | What to do |
|---|---|
| Warm or typical mowing temps | Use the summer-weight oil the tractor is designed to run |
| Cold-weather starting | Switch to the lighter viscosity listed in the manual’s oil viscosity chart |
Correct oil viscosity protects the engine, improves starting, and reduces wear. Using the wrong viscosity (especially in cold weather) can make the engine crank slowly and run with poor lubrication.
Last updated: February 2026
How much does it cost to replace a riding lawn mower engine?
For a Craftsman riding mower like model 917275280, a complete engine replacement typically costs $260 to $1,800 installed. The total depends on the engine price, whether any pulleys or belts transfer over, and labor time (often around 6 hours for a riding mower).
- Engine cost: new replacement engines vary widely by horsepower and shaft configuration
- Labor time: riding mower engine swaps take longer than walk-behind mowers
- Extra parts: worn belts, pulleys, wiring, or a PTO clutch can add cost
- Shop rates: local labor rates and minimum service charges vary
- Condition of the tractor: rusted fasteners and damaged mounts increase labor
If the old engine failed violently, overheated, or threw a belt, we often see related deck-drive parts need attention too:
| Part area | What it affects | Example part for 917275280 |
|---|---|---|
| PTO engagement | Turns the deck on and off | Pto switch 582107601 |
| Deck belt drive | Blade drive and cut quality | (Commonly inspected; replace if worn) |
| Idler pulleys | Belt tension and tracking | (Commonly inspected; replace if frozen) |
Sometimes the tractor feels “dead” but the engine is not the root cause. Use the troubleshooting steps in the 917275280 owner’s manual to confirm basics first.
- Verify switches and wiring connections are secure
- Check for a blown fuse and poor battery cable connections
- Confirm the freewheel control is in the engaged position
- If blades will not spin, inspect for a worn mower drive belt or frozen idler pulley
- Clean debris buildup around mandrels and under the deck (vent holes can clog)
An engine replacement is one of the highest-cost repairs on a riding mower. Confirming whether the issue is electrical, belt-related, or a deck-drive problem helps you avoid paying for an engine when a lower-cost fix restores operation.
Last updated: February 2026
What model number is a Craftsman 917275280 lawn mower?
The model number for this Craftsman riding mower (garden tractor) is 917.275280, commonly written without the dot as 917275280. You can confirm it on the product ID label and in the 917275280 owner's manual.
Check these common locations on Craftsman front-engine lawn tractors:
- Under the seat on the seat pan or fender area
- On the frame near the engine compartment
- Near the rear hitch plate or transaxle area
- On a sticker or metal tag that also lists serial information
Craftsman model numbers are often printed with a dot in manuals and diagrams, but parts lookups typically drop the dot.
| Format you may see | What it means |
|---|---|
| 917.275280 | Same model number (manual/label format) |
| 917275280 | Same model number (parts lookup format) |
Using the exact model number helps us match the correct diagrams and parts for your mower deck, steering, and ground drive systems.
- Prevents ordering the wrong belt, blade, or pulley
- Ensures diagrams match your exact configuration
- Helps identify the right electrical parts (like a PTO switch)
If you are shopping for common wear items, these are examples of parts listed for model 917275280:
- Pto switch 582107601 (blade engagement control)
- Lawn tractor primary blade drive belt, 5/8 x 90-3/32-in 532174368 (deck belt)
- Lawn tractor 48-in deck high-lift blade 532180054 (cutting blade)
Even small model-number differences can change deck size, belt routing, and steering components, so matching 917275280 exactly keeps the repair straightforward.
Last updated: February 2026
