Craftsman 917273750 lawn tractor Parts

The Craftsman lawn tractor model 917273750 uses a low-emission 18.0 HP engine (as listed on the tractor’s Owner’s Manual cover) and drives a 42-inch mower deck with an electric start and a 6-speed transaxle. For the exact engine make and model details, use the 917273750 owner's manual.

What you can confirm for model 917273750

From the model-specific documentation, these are the key engine-related specs we use for this tractor:

• 18.0 HP engine rating
• Low-emission engine design (operates differently than older engines)
• Electric start
• 42-inch mower deck
• 6-speed transaxle drivetrain

Where to find the engine brand and model number

On riding mowers like the Craftsman 917273750, the engine manufacturer and model are typically shown on the engine ID label (often on the blower housing, valve cover area, or near the starter).

Use this quick checklist:

• Look for an engine ID sticker/plate on the engine shroud
• Record the engine model, type, and code (or spec numbers)
• Match those numbers to the engine parts list in the 917273750 owner's manual
• If you are ordering service parts, match by engine ID, not just horsepower

Common engine identification points (quick reference)

What you see	What it helps with	Why it matters
HP rating (18.0 HP)	General capability	Does not uniquely identify the engine
Engine ID label numbers	Exact engine model/spec	Ensures correct tune-up and fuel system parts
Tractor model (917273750)	Chassis and deck parts	Ensures correct belts, blades, and deck hardware

Why it matters

Many Craftsman tractors share similar deck sizes and horsepower ratings, but engine components (air filter, spark plug, carburetor parts, starter parts) are selected by the engine’s ID numbers. Using the manual and the engine label prevents ordering the wrong parts.

Last updated: February 2026

Yes. The Craftsman riding mower model 917273750 uses an engine oil filter (when equipped), and the maintenance instructions call for replacing the oil filter every season or every other oil change if you run the tractor more than 100 hours in a year. See the 917273750 owner's manual for the exact service schedule and procedure.

How to tell if your 917273750 is equipped with an oil filter

Most versions of this Craftsman front-engine lawn tractor have a spin-on oil filter mounted on the engine block.

• Look for a small metal canister (spin-on filter) on the side of the engine
• Check for an oil filter part listed in the engine section of the parts diagram
• Follow the maintenance schedule that lists oil changes with and without an oil filter
• If you see only a drain plug and no filter, your engine configuration is the “without oil filter” setup

Oil change schedule: with vs. without oil filter

The manual separates oil service into two tracks. Use the one that matches your engine configuration.

Engine setup	What you do	Typical interval
With oil filter	Change engine oil and replace oil filter	Oil per schedule; filter every season (or every other oil change with 100+ hours/year)
Without oil filter	Change engine oil only	More frequent oil changes compared to filter-equipped setups

Why it matters

An oil filter helps trap fine debris that accelerates engine wear. If your 917273750 is filter-equipped, replacing the filter on schedule keeps oil cleaner longer and helps protect internal engine parts under heavy mowing loads.

Helpful maintenance tips we recommend

• Check engine oil level before each use and keep it at the full mark
• Change oil more often in high heat, heavy loads, or dusty conditions
• Clean the air filter regularly; a dirty air filter can cause poor running and faster oil contamination
• Shut the engine off, set the parking brake, and remove the key before servicing

Last updated: February 2026

For the Craftsman lawn tractor model 917273750, we use a high-quality detergent 4-cycle engine oil that meets API service classification SF-SJ, and we choose the SAE viscosity based on outdoor temperature (multi-viscosity oils like 5W30 or 10W30 are commonly used). For the exact viscosity chart and service steps, follow the 917273750 owner's manual.

Oil type and viscosity: what to use

Use oil that matches both the quality rating and the temperature range:

• Use detergent engine oil rated API SF-SJ.
• Pick the SAE viscosity grade for your expected operating temperature.
• Multi-viscosity oils (example: 5W30, 10W30) help cold starting.
• In temperatures above 32°F, multi-viscosity oils can increase oil consumption; check the oil level more often.
• Check oil on level ground; fill only to the FULL mark on the dipstick.

Quick selection guide (typical)

These are common choices for 4-cycle lawn tractor engines; always match the manual’s viscosity chart for your climate.

Outdoor temperature	Typical viscosity choice	Notes
Below freezing	5W30	Easiest starting in cold weather
Around freezing to mild	10W30	Common all-around option
Hot summer mowing	SAE 30	Often used for warm-weather operation

Maintenance tips that prevent engine damage

Keeping the crankcase full and changing oil on schedule matters more than any single brand of oil.

• Check the crankcase oil level before starting and after each 8 hours of operation.
• Change engine oil about every 50 hours of operation or at least once per year.
• Tighten the oil fill cap/dipstick securely after each check.
• Drain oil when warm (it flows out faster); catch oil in a suitable container.

Why it matters

Using the correct viscosity for the season helps your 917273750 start easier, lubricate properly, and reduce wear. Staying on top of oil level is especially important because running low can quickly damage internal engine components.

Last updated: February 2026

Craftsman lawn tractors can use engines from several manufacturers; for model 917273750, the owner’s manual confirms it has a low-emission engine, but it does not name the engine brand on the cover pages. Use the engine ID label on the engine itself to match the exact maker and parts.

How to identify the engine brand on model 917273750

Check the engine shroud or valve cover for an ID sticker or stamped tag. On most riding mowers, that label includes the manufacturer name and a model-type code.

• Look for a label that lists Model, Type, and Code (common on Briggs & Stratton)
• Check for a spec number or serial number (common on Kohler)
• Look near the starter, blower housing, or valve cover
• Write down the full string exactly as shown before ordering parts
• Confirm the tractor model and specs in the 917273750 owner’s manual

Common engine brands used on Craftsman lawn tractors

Across Craftsman riding mowers and lawn tractors, the most common engine makers you will see include Briggs & Stratton, Kohler, and Kawasaki. The exact engine brand depends on the tractor’s production run and configuration.

Engine maker	What the ID label often looks like	Typical use case
Briggs & Stratton	Model / Type / Code	Very common on many Craftsman tractors
Kohler	Model / Spec / Serial	Common on mid to higher HP tractors
Kawasaki	Model / Spec / Serial	Often used on premium configurations

Why it matters

Engine parts (air filter, spark plug, carburetor parts, starter, fuel shutoff) are matched to the engine model and spec, not just the tractor model number. Identifying the engine brand first prevents wrong-part returns and speeds up repairs.

Related parts you may replace during engine or mowing maintenance

These are tractor parts commonly serviced alongside engine work on the 917273750:

• Deck blades such as the lawn tractor 42-in deck high-lift blade 532138971
• Deck drive and motion belts such as the v-belt 532138255
• Ignition items such as the molded ignition key 532140403

Last updated: February 2026

Craftsman lawn tractor model 917.273750 was produced across multiple years (not a single model-year), so the exact build year is identified from the tractor’s product identification label (typically under the seat or on the frame). We use the label’s serial information to pinpoint the manufacturing date.

How to find the build year on model 917.273750

Check these common locations first:

• Under the seat on the fender pan or seat bracket area
• On the frame rail near the engine compartment
• Near the rear hitch plate or drawbar area
• Inside the hood area on the chassis

Use the diagrams and identification notes in the 917273750 owner's manual to confirm the label location and how the tractor is identified.

What to write down from the label

For the most accurate year lookup, record:

• Model number: 917.273750
• Serial number (full number, exactly as printed)
• Any date code or manufacturing code
• Engine model information (often listed separately on the engine)

Quick reference: model vs. serial

Item	What it tells you	Why it matters
Model number (917.273750)	The tractor design family	Ensures you get the right parts diagrams and assemblies
Serial number / date code	The specific unit’s build timing	Identifies the actual manufacturing year
Engine model number	The engine’s exact version	Helps match tune-up and engine parts correctly

Why it matters

Craftsman tractors like the 917.273750 often stayed in production with small running changes. Using the serial number prevents ordering the wrong chassis, steering, or deck parts, especially for items like blades, belts, and mandrel components.

Related parts that commonly vary by build/run

If you are matching parts after you confirm the build information, these are frequent fitment-sensitive items:

• Deck blades (mulching vs. high-lift)
• Ground drive belt routing and length
• Mandrel and pulley hardware
• Steering linkage and axle components

For example, if you are servicing the cutting deck, match the blade style to your setup, such as the lawn tractor 42-in deck high-lift blade 532138971.

Last updated: February 2026

Yes; replacing the engine on your Craftsman 917273750 front-engine lawn tractor is worth it when the deck and chassis are solid and the drivetrain is still healthy (including the 6-speed transaxle). If the deck is failing or the transaxle is slipping, replacement is the better value.

Quick decision checklist for model 917273750

• The mower deck is straight (no cracks, heavy rust-through, or broken welds)
• The tractor drives smoothly through all gears on the 6-speed transaxle (no slipping, grinding, or loss of drive)
• The brake holds firmly and releases cleanly
• Steering is tight enough to track straight (no severe play)
• You can keep up with maintenance after the swap (oil changes, air filter service, spark plug)

Cost and value: a simple rule

Engine replacement makes sense when the all-in cost (engine, mounting hardware, belts/parts you disturb, and your time) is clearly less than a comparable new riding mower.

Condition on your 917273750	Best move	Why it matters
Deck and chassis are strong; 6-speed transaxle pulls well	Replace the engine	You extend the life of a good tractor for less than new
Cut quality is poor from deck issues	Fix deck and blades first	A new engine will not correct an uneven cut
Transaxle slips or won’t drive reliably	Replace the tractor (or price a full drivetrain repair)	Drivetrain repairs can exceed the value of the machine

What to inspect before you commit

Use the 917273750 owner's manual for safe servicing steps and adjustment checks. Focus on these high-impact areas:

• Deck and cut quality: Check for a worn or bent blade, loose blade bolt, and an unlevel deck.
• Deck cleanliness: Heavy grass buildup under the housing can mimic low power and poor cutting.
• Drive performance: If ground speed varies or the tractor struggles on hills, inspect the v-belt 532138255 for wear or glazing.
• Blade system wear: Vibration or uneven cutting often points to blade or mandrel wear; replace a damaged blade with the lawn tractor 42-in deck high-lift blade 532138971 if that matches your cutting setup.

Why it matters

An engine swap only pays off when the rest of the tractor is mechanically sound; on the 917273750, confirming the 6-speed transaxle is still strong is one of the biggest factors in the repair-versus-replace decision.

Last updated: February 2026