Craftsman 917270950 tractor Parts

For a Craftsman riding lawn tractor like model 917270950, a complete engine replacement (parts plus labor) typically costs about $600 to $2,500. The biggest cost drivers are the engine itself, whether any pulleys or belts must be replaced, and the labor time to swap and test the new engine.

What makes the price go up or down

• Engine type and horsepower: higher-output engines cost more.
• Labor time: most riding mower engine swaps run 4 to 8 hours including setup and testing.
• Extra parts needed: worn drive components often get replaced at the same time.
• Shipping and core charges: some engines have added freight or return requirements.
• Shop rates in your area: labor rates vary widely.

Parts that commonly get replaced during an engine swap

Even if the engine is the main issue, we often see related wear parts replaced to prevent repeat problems:

• V-belt 532138255 if the belt is glazed, cracked, or stretched
• Engine pulley 532140186 if the pulley is wobbling, grooved, or seized
• Molded ignition key 532140403 if the key is damaged or intermittently loses contact
• Blade-deck parts if vibration or poor cut quality is also present (for example, a bent blade or worn mandrel)

Quick cost breakdown (typical ranges)

Cost item	Typical range	Notes
Engine (part)	$300 to $1,900	Largest variable; depends on spec and availability
Labor	$300 to $900	Often 4 to 8 hours total
Related parts	$0 to $250	Belts, pulleys, hardware, tune-up items

Why it matters

A riding mower engine replacement is a major repair; if you reuse worn belts or pulleys, the new engine can end up with vibration, belt slip, or premature wear. Replacing obvious wear parts during the swap helps the tractor run smoothly and protects your investment.

Last updated: February 2026

Craftsman riding mowers and lawn tractors use engines from several major manufacturers, depending on the specific model and production year. For the Craftsman 917270950 front-engine lawn tractor, the engine brand is determined by the engine model and spec numbers shown on the engine itself.

Where to find the engine brand on a Craftsman 917270950

Look for an engine ID label or stamping on the engine. Common locations include the blower housing, valve cover area, or near the starter.

• Find the engine model and spec (sometimes called type) numbers
• Write down the serial number as well
• Match the brand by the label format (Briggs & Stratton, Kohler, Kawasaki are common)
• Use the engine model and spec to get the correct tune-up and service parts
• If the label is missing, check for cast-in brand marks on the shroud or valve cover

Common engine brands used on Craftsman lawn tractors

Craftsman has commonly used these engine brands across many lawn tractor lines:

Engine brand	Where you will usually see it	Typical notes
Briggs & Stratton	Model-type-code label format	Very common on many Craftsman tractors
Kohler	Model-spec label format	Common on mid to higher horsepower tractors
Kawasaki	Model-code label format	Often found on premium mower/tractor builds

Why it matters

The engine brand and engine model numbers control which maintenance parts fit (air filter, spark plug, fuel filter, starter, carburetor parts). Using the tractor model number alone can lead to the wrong engine parts.

Parts on this model page that relate to starting and operation

If you are troubleshooting a no-start or intermittent start, these parts from the Craftsman 917270950 parts list are often involved in basic checks:

• Molded ignition key 532140403 (key wear or damage can prevent consistent starting)
• V-belt 532138255 (drive issues can be mistaken for engine power problems)

For step-by-step no-start diagnostics, we recommend our DIY walkthrough: riding lawn mower engine spins but wont start video.

Last updated: February 2026

The Craftsman riding mower model 917270950 uses a gasoline-powered single-cylinder engine, but the exact engine brand and horsepower can vary by the specific engine installed on the tractor. We recommend confirming the engine make and model from the engine ID label before ordering tune-up or ignition parts.

How to identify the exact engine on model 917270950

Look for the engine identification label directly on the engine (not on the mower frame). Common label locations include the blower housing, valve cover area, or near the starter.

• Write down the engine manufacturer (often Briggs & Stratton, Kohler, or Tecumseh on older units)
• Record the engine model, type, and code (or spec number)
• Match those numbers when selecting filters, spark plugs, carburetor parts, or ignition components
• If the label is missing, check for stamped numbers on the shroud or valve cover
• Use your tractor model 917270950 to cross-check compatible chassis and deck parts

Parts that are tractor-model specific vs engine-model specific

Many repairs on a riding mower involve both engine parts and tractor/deck parts. The items below are typically selected by different numbers.

What you are replacing	Usually matched by	Examples on this model page
Engine tune-up parts	Engine model/type/code	(spark plug, air filter, fuel filter)
Mower deck drive parts	Tractor model	V-belt 532138255
Blade and spindle parts	Deck/tractor model	Husqvarna lawn tractor mandrel assembly 532130794, husqvarna lawn tractor mulching blade, 21-in 532134149
Starting/keys/switch items	Tractor model	Molded ignition key 532140403

Why it matters

Using the correct engine identification prevents ordering the wrong maintenance parts (like a carburetor kit or ignition coil) even when the tractor model number is correct. At the same time, deck and drive components such as belts, mandrels, and blades are matched to 917270950.

Quick tip if you are troubleshooting a no-start

If the engine cranks but will not start, follow a basic fuel, spark, and air check before replacing parts. Our video guide can help: riding lawn mower engine spins but wont start video.

Last updated: February 2026

Craftsman model 917270950 was made during the LT1000-era production run (most commonly late 1990s through mid-2000s); the exact build year is tied to the tractor’s product/serial label rather than the model number alone. We use that label information to match the correct parts list for your specific unit.

How to find the exact year on your 917270950

Look for the product identification label and record the numbers exactly.

• Check under the seat (common location on many Craftsman riders)
• Look on the frame rail near the engine or rear wheels
• Write down the serial number and any date code shown
• If the label is dirty, wipe it gently so every digit is readable
• Use the serial/date code to confirm the production year before ordering parts

Why the year matters for parts and repairs

Craftsman tractors can keep the same model family styling for years, but change key components like the deck drive, mandrels, and belts. Confirming the build year helps us match the correct configuration for:

• Mower deck components (blade, mandrel, idler system)
• Ground drive system (drive belt routing and pulleys)
• Steering and front axle hardware
• Electrical parts (keys, switches)

Common parts that vary by production run

Here are examples of parts on this model page that are often affected by configuration changes:

System	Example part on this page	What can differ by year/run
Mower deck	Husqvarna lawn tractor mulching blade, 21-in 532134149	Blade length, center hole pattern, deck size
Ground drive	V-belt 532138255	Belt length/width, pulley layout
Ignition	Molded ignition key 532140403	Key style, switch compatibility

Quick check before you buy

• Match the deck size and blade mounting style
• Compare belt routing to your tractor’s current setup
• Replace worn hardware (nuts, clips) when you remove the deck

Last updated: February 2026