Craftsman 917254520 lawn tractor Parts

On the Craftsman 917254520 front-engine lawn tractor, the most common problems we see are drive or deck belt wear, blade and pulley issues that affect cutting quality, steering looseness, and no-start conditions tied to safety switches or the ignition switch. Use the owner's manual for model-specific checks and adjustments.

Common symptoms and what they usually point to

• Tractor will not move or slips under load: worn or stretched drive belt, idler pulley wear, weak return spring
• Mower deck will not engage or stops mowing: blade drive belt wear, idler pulley binding, pulley damage
• Poor cut quality or vibration: bent/dull blade, loose hardware, worn spindle-related components
• Hard steering or wandering: steering linkage wear (drag link), front wheel bearing wear
• No crank or intermittent starting: seat switch not closing, ignition switch wear, loose wiring connections

Parts that commonly fix these issues

If your symptoms match, these model-matched parts are frequent solutions:

• Lawn tractor drive belt 532125907 for loss of drive or slipping
• Lawn tractor blade drive belt 532106085 for deck engagement and mowing power
• Lawn mower idler pulley 532121316 or flat idler pulley 532123674 for squeal, belt jump-off, or binding
• Lawn tractor ignition switch 532365402 for no-crank or key issues
• Lawn tractor seat switch 532421062 for crank-no-start tied to operator presence safety

Quick checks we recommend before ordering parts

• Park on level ground, set the parking brake, remove the key, and disconnect the spark plug wire.
• Inspect belts for glazing, cracking, fraying, or a “narrowed” profile.
• Spin idler pulleys by hand; they should rotate smoothly with no wobble.
• Check blade tightness and look for bends or heavy nicks.
• Confirm safety switches actuate fully (seat switch, brake/clutch interlock).

Symptom-to-part cheat sheet

Symptom	Most likely area	Example part on this model
Slips, won’t climb	Drive system	Drive belt
Deck won’t stay engaged	Deck drive	Blade drive belt, idler pulley
No crank	Electrical/safety	Seat switch, ignition switch
Vibration	Cutting system	Blade, pulleys

Why it matters

Catching belt and pulley wear early prevents repeated belt failures, protects bearings and spindles, and keeps the Craftsman deck cutting evenly without excess vibration.

Last updated: March 2026

The Craftsman lawn tractor model 917254520 uses a 12 HP Briggs & Stratton engine, identified in the parts listing as Briggs & Stratton model 281707, type 0412-01. For tune-up parts and exact engine component callouts, use the 917254520 owner's manual.

How to confirm the engine on your tractor

We recommend matching the engine ID on the tractor to the manual listing so you order the right carburetor, starter, and ignition parts.

• Look for the Briggs & Stratton ID tag or stamped numbers on the engine shroud or valve cover area
• Match Model and Type numbers to 281707 and 0412-01
• Verify the tractor model tag shows 917254520
• If the engine has been replaced, use the engine’s model/type for engine parts (not just the tractor model)

What those numbers mean

These identifiers help you select correct engine-specific parts.

Identifier	What it identifies	Example for this tractor
Tractor model	The mower/tractor chassis	917254520
Engine model	The engine family/spec	281707
Engine type	The exact build variation	0412-01

Related parts you may need when servicing the tractor

If you are doing a basic service or chasing a drive complaint, these model-matched parts are commonly involved:

• Lawn tractor drive belt 532125907 for ground drive issues (slipping, no movement)
• Lawn tractor blade drive belt 532106085 for blade engagement or deck drive issues
• Lawn tractor ignition switch 532365402 if the key switch is intermittent or fails electrically
• Lawn tractor seat switch 532421062 if the engine dies when you shift weight or release the brake

Why it matters

The correct engine model and type number prevent wrong-part orders, especially for carburetor, starter, and governor components where small design changes are common across Briggs & Stratton engines.

Last updated: January 2026

For Craftsman model 917254520, the engine shown in the parts listing is a Briggs & Stratton 12 HP engine (model 281707, type 0412-01), not a 420cc engine. Use the engine model and type from the tractor’s documentation to identify the correct manufacturer and order the right tune-up and repair parts. See the 917254520 owner's manual.

How to identify who made your Craftsman engine

On riding mowers, “Craftsman” is the tractor brand; the engine is typically made by a separate engine manufacturer. For model 917254520, the manual lists a Briggs & Stratton engine.

Check these locations for the engine ID tag:

• Blower housing (top of engine near the recoil or starter area)
• Valve cover area
• Engine shroud near the spark plug
• Frame rail near the engine (sometimes a decal)

What to look for on the engine label

Match the label to the format used by the manufacturer.

What you see on the label	What it means	Why it matters
Model number	The engine family (example: 281707)	Determines carburetor, ignition, and gasket parts
Type number	The exact build configuration (example: 0412-01)	Prevents ordering the wrong variant
Code/date	Build date	Helps match superseded parts

Why “420cc” can be misleading

“420cc” is a displacement description used on many modern single-cylinder engines, but it does not uniquely identify the maker. The same cc rating can appear across multiple brands and suppliers.

Common engine makers found on Craftsman tractors include:

• Briggs & Stratton
• Kohler
• Tecumseh (older units)
• MTD-supplied engines on some later models

Why it matters

Using the engine model and type (not just cc) ensures you get compatible parts like belts, ignition components, and fuel system parts. For example, if you are servicing the drive system on this tractor, the correct belt fit depends on the tractor’s configuration, such as the lawn tractor drive belt 532125907.

Last updated: January 2026