Craftsman 917273500 lawn tractor Parts

Replacing the engine on a Craftsman lawn tractor like model 917273500 typically runs $800 to $2,500 total for the engine plus installation. The exact price depends on the correct replacement engine match (mounting pattern, crankshaft size, PTO setup) and local labor rates; our 917273500 owner's manual helps you confirm what you have before you buy.

Typical cost breakdown (engine swap)

These ranges fit most front-engine riding mowers and tractors:

• Replacement engine: $600 to $1,800
• Labor (shop install): $200 to $900
• Supplies and small parts: $50 to $300 (oil, filter, fuel line, clamps, hardware)
• While-you’re-in-there items: $0 to $250 (battery cables, belts, pulleys)

Option	What’s included	Typical total
DIY engine replacement	Engine + supplies	$650 to $2,100
Shop-installed replacement	Engine + labor + supplies	$900 to $2,500
Repair instead of replace	Diagnosis + targeted parts	$50 to $600

What to confirm before pricing an engine for model 917273500

Engine swaps fail or get expensive when the crankshaft and PTO details do not match. Confirm these first:

• Engine mounting bolt pattern
• Crankshaft diameter and length
• Crankshaft type (keyed, tapped, etc.)
• PTO/clutch and pulley alignment
• Wiring connections and charging setup
• Muffler and throttle/choke linkage compatibility

Check for cheaper fixes first

Many “bad engine” symptoms are actually starting, fuel, or safety-interlock issues. The troubleshooting steps in the manual commonly point to:

• Recharge/replace the battery; clean terminals
• Check the fuse and wiring connections
• Test the solenoid and starter
• Replace stale fuel; check the fuel filter
• Verify oil level and basic maintenance

For a no-crank click symptom, use riding lawn mower engine clicks but doesnt turn over video.

Why it matters

An engine replacement is one of the highest-cost repairs on a riding mower. Verifying fit details and ruling out battery, solenoid, and fuel problems prevents buying the wrong engine and saves labor time.

Last updated: February 2026

For a Craftsman riding mower like model 917273500, the model number is typically printed on a label on the tractor frame under the seat, or on the underside of the seat itself. Once you have it, you can match the correct parts, blades, and belts for your exact tractor.

Where to look on model 917273500

Check these common spots first:

• On the frame directly under the seat (lift the seat and look down at the chassis)
• On the underside of the seat pan
• Near the rear fender area close to the seat mounting bracket
• On a decal plate near the operator position (varies by production run)

If the label is dirty or faded, wipe it with a damp rag and a little mild cleaner so the digits are readable.

What you should write down

We recommend recording both identifiers if they are present.

• Model number (example: 917.273500 may appear with a dot in the manual)
• Serial number (used to narrow down production variations)
• Any engine model/type/code listed on the engine itself (helpful for engine-specific parts)

Model number formats you may see

The same tractor can show the model number in slightly different formats.

Where you see it	Example format	What it means
Owner documentation	917.273500	Printed with a dot
Product label on tractor	917273500	Often printed without punctuation

Why it matters

Craftsman tractors can share similar looks across years, but parts like a ground drive belt, mandrel assembly, or mower blade can differ by model and serial range. Using the exact model number helps ensure the replacement part fits and installs correctly.

For model-specific identification details and diagrams, use the 917273500 owner's manual.

Last updated: February 2026

Yes; on your Craftsman lawn tractor model 917273500, engine repair is worth it when the problem is routine maintenance or an external component (fuel, ignition, wiring, cooling airflow). It is not worth it when the engine has internal damage that requires major teardown or machine-shop labor.

Quick decision checklist

• Repair it for stale fuel, a loose spark plug wire, dirty cooling fins, clogged muffler, or damaged wiring
• Repair it if the tractor is solid overall (deck, steering, drive system) and you want more seasons
• Replace the engine or tractor for knocking, heavy smoke, low compression, or metal in the oil
• Replace it if the estimate is close to the cost of a comparable used or new rider
• Use a service center for carburetor or governor concerns; many are factory-set and should not be adjusted

Use the manual to match symptoms to likely fixes

The troubleshooting section in the 917273500 owner's manual lists common “won’t run right” causes such as fuel issues, loose connections, dirty engine air screen/fins, and muffler restrictions. Start there before pricing an engine.

What you notice	Usually worth repairing?	Best next step
Cranks but runs rough	Yes	Fresh fuel; check spark and wiring
Overheats or smells hot	Yes	Clean debris from fins and around exhaust
Knocks or smokes heavily	No	Compression test; plan replacement

Costs that change the math

• Diagnostic time (compression test, spark/fuel checks)
• Parts for tune-up and fuel system refresh
• Labor if the engine must be removed

Why it matters

A “bad engine” is often a maintenance or safety issue. The manual stresses keeping debris off hot engine/exhaust parts and avoiding adjustments with the engine running; that prevents repeat failures and reduces downtime.

Last updated: February 2026

The Craftsman lawn tractor model 917273500 is equipped with a 16.5 HP gas engine and is labeled as a low-emission engine in the 917273500 owner's manual. It also uses an electric start system and is paired with an automatic transmission.

What we can confirm for model 917273500

From the model-specific documentation, this tractor is described with these key engine-related details:

• 16.5 HP engine rating
• Low-emission engine design (operates differently than older engines)
• Electric start
• Gas-powered riding lawn tractor configuration
• Designed to be operated and maintained per the safety and maintenance sections in the manual

Engine details vs. other Craftsman riders (quick comparison)

Many Craftsman riding mowers look similar, but engine specs vary by model number. Here is how 917273500 compares to common alternatives.

Item	Model 917273500 (this tractor)	Many other Craftsman riders (typical)
Horsepower label	16.5 HP	Often 17.5 HP to 24 HP
Emissions design	Low-emission engine	Varies by model year/engine family
Starting system	Electric start	Electric start is common
Transmission	Automatic	Automatic or gear drive

Why it matters

Using the correct engine type and horsepower rating helps you choose compatible maintenance parts (spark plug, air filter, belts) and follow the right tune-up and starting procedures. It also prevents ordering the wrong components for the ignition and drive system.

Related parts you may replace during engine or drive issues

If you are troubleshooting poor movement or drive performance (often mistaken for an engine problem), these model-matched parts are commonly involved:

• Ground drive belt 532140294 (transfers power to the drive system)
• Engine pulley 532175410 (drives the belt system)
• Molded ignition key 532140403 (starting and ignition operation)

Last updated: February 2026

For the Craftsman lawn tractor model 917273500, we use 4-cycle engine oil; the best viscosity depends on outdoor temperature. The tractor ships with summer-weight oil, and the correct cold-weather and warm-weather choices are shown in the oil viscosity chart in the 917273500 owner's manual.

Recommended oil type and viscosity

Use high-quality 4-cycle (4-stroke) engine oil that meets common small-engine standards. Then match viscosity to temperature:

• Warm weather mowing: use the manual’s summer-weight recommendation
• Cold weather starting: switch to the manual’s cold-weather viscosity for easier cranking
• Do not mix oil with gasoline: this is a 4-cycle engine
• Check oil on level ground: readings change on slopes
• Do not overfill: fill only to the “FULL” mark on the dipstick

How to check and top off oil (quick steps)

We follow the same process outlined for this tractor:

1. Park on a level surface and let the engine cool.
2. Remove the oil fill cap/dipstick; wipe it clean.
3. Reinsert the dipstick and rest the cap (do not thread it in), then remove and read.
4. Add oil a little at a time until it reaches FULL.

Oil selection guide (simple)

Conditions	What to do	Why
Typical summer mowing	Keep the factory summer-weight oil spec	Maintains proper lubrication at higher temps
Cold weather operation	Change to the manual’s cold-weather viscosity	Improves starting and reduces wear
Unsure of last oil change	Change oil and start fresh	Prevents engine damage from dirty oil

Why it matters

Correct oil viscosity protects internal engine parts, reduces heat and friction, and helps the engine start reliably. Using the wrong viscosity (especially in cold weather) can cause hard starting and accelerated wear.

Last updated: February 2026

For the Craftsman lawn tractor model 917273500, the engine manufacturer depends on the specific engine installed on your tractor; Craftsman tractors in this class commonly use engines supplied by Briggs & Stratton, Kohler, or Kawasaki. Your 917273500 owner's manual helps you identify the correct engine and service details.

How to identify the engine maker on your 917273500

Use these quick checks to confirm the exact engine brand and model on your tractor:

• Look for the engine ID label on the blower housing, valve cover, or near the starter
• Check the model-type-code format (common on Briggs & Stratton)
• Find the spec number (common on Kohler)
• Look for a model/serial plate (common on Kawasaki)
• Match the engine info to the maintenance and tune-up section in the manual

What “Craftsman engine” means

Craftsman is the equipment brand; the engine is typically sourced from a major engine OEM. That is normal for riding mowers and helps ensure parts availability for items like spark plugs, air filters, and fuel filters.

Common engine OEMs you will see

Engine maker	Where you’ll usually see it	What to record for parts/service
Briggs & Stratton	Many Craftsman lawn tractors	Model, type, code
Kohler	Some mid to higher tier tractors	Model, spec, serial
Kawasaki	Some premium tractors	Model, serial

Why it matters

The engine maker and engine model determine the correct tune-up parts, oil type, and troubleshooting steps. Using the right engine identification also prevents ordering the wrong ignition or fuel system parts.

If you are also replacing cutting components, match your deck setup to the correct blade style; for example, a lawn tractor 42-in deck high-lift blade 532138971 is designed for strong lift and bagging performance on many 42-inch decks.

Last updated: February 2026