Craftsman 917257561 lawn tractor Parts

For Craftsman lawn tractor model 917257561, the manual identifies it as an 18 HP Briggs & Stratton (B&S) engine configuration. For the exact engine family, type, and code used on your tractor, match the numbers on the engine label to the specifications in the 917257561 owner's manual.

How to identify the exact engine on your 917257561

Use the engine’s ID label (usually on the blower housing, valve cover area, or near the starter) and compare it to the manual’s engine section.

• Locate the Briggs & Stratton label and write down Model, Type, and Code
• Confirm the tractor model tag reads 917257561
• Check for decals that reference B&S and horsepower (common on hood/side panels)
• Use the manual’s parts and decal pages to cross-check what your tractor was built with
• If the label is missing, use the tractor’s build information and parts diagrams to narrow it down

Quick reference: what we can confirm vs what you’ll read on the engine label

Item	What you’ll see	What it tells you
Horsepower rating	18 HP (tractor configuration)	General power class for this model
Engine brand	Briggs & Stratton (B&S)	Manufacturer of the engine
Engine Model/Type/Code	Stamped/printed on engine label	Exact engine variant and production details

Why it matters

The exact Briggs & Stratton Model/Type/Code determines the correct tune-up parts (spark plug, air filter, fuel filter), carburetor settings, and some service procedures. Using the tractor model alone can still leave multiple engine variants.

Related maintenance tip

If you are doing seasonal service, follow the maintenance intervals and procedures in the 917257561 owner's manual so the engine starts easier and runs smoother.

Last updated: January 2026

For the Craftsman lawn tractor model 917257561, engine replacement cost is usually driven by the engine price plus 4 to 8 hours of labor. Most owners spend about $600 to $2,500 total, depending on whether you install it yourself or hire a shop.

What makes the price go up or down

• Engine type and availability: this tractor uses an 18 HP twin-cylinder engine; the manual lists engine model 422707, type 1527-01, and exact replacements vary by supplier.
• Labor time: shops commonly book 4 to 8 hours for a riding mower engine swap (removal, transfer parts, alignment, test run).
• Extra parts you replace “while you’re in there”: belts, pulleys, fuel lines, battery, and tune-up items.
• Condition of mounting hardware: rusted bolts, damaged wiring, or worn pulleys add time.
• DIY vs. shop: DIY saves labor but requires safe lifting, tools, and careful wiring/fuel handling.

Typical cost breakdown (what to budget)

Cost item	Typical range	Notes
Replacement engine	$300 to $1,800	Biggest variable; match shaft size, charging system, and mounting pattern
Labor (shop)	$300 to $900	Often 4 to 8 hours depending on complexity
Misc. parts/fluids	$25 to $200	Oil, filter, fuel line, clamps, hardware
Optional “while apart” parts	$40 to $200+	Belts, pulleys, battery, blades, etc.

Smart checks before you buy an engine

We recommend confirming the engine model information and doing a quick “is it really the engine?” check first.

• Verify the tractor model and engine model on the ID plates (tractor plate is under the seat; engine plate is on the blower housing).
• Check battery and cables; poor connections can mimic engine failure.
• If the engine clicks but will not crank, follow the steps in 917257561 owner’s manual.
• If the engine spins but will not start, focus on fuel delivery, spark, and air filter before committing to an engine.

Why it matters

An engine swap can cost close to the value of an older riding mower. Confirming the correct engine model and ruling out starting-system issues helps you avoid paying for an engine when a battery, wiring repair, or tune-up would fix the problem.

Last updated: January 2026

Yes, replacing the engine on your Craftsman lawn tractor model 917257561 is worth it when the tractor’s deck, frame, steering, and transmission are still solid and the total engine swap cost stays well below the cost of a comparable replacement tractor. If multiple major systems are worn out, replacing the tractor is the better value.

Quick decision checklist

• The mower deck is not rusted through and still cuts evenly after leveling
• The drive system moves smoothly (no slipping, grinding, or loss of power)
• Steering and front axle components are tight (no excessive play)
• You can do basic service safely (spark plug wire disconnected before work)
• The engine failure is isolated (not caused by chronic overheating or severe neglect)

Cost and effort: what to compare

Use this simple comparison to decide where your money goes.

Option	Best when	Typical downside
Replace engine (complete)	You want the fastest “like-new” powerplant	Highest parts cost
Replace short block	Top end is damaged but accessories are reusable	More teardown and setup
Replace tractor	Deck, belts, spindles, and steering also need work	Higher upfront cost

What to inspect on model 917257561 before you commit

A good chassis makes an engine swap pay off. We recommend checking these items first:

• Deck condition and spindle area; a worn mandrel can cause vibration and poor cut
• Blade drive components (belt, idlers, pulleys) for cracking, glazing, or wobble
• Fuel system condition (old fuel, varnish, leaking tank)
• Safety controls and interlocks; never bypass safety devices

Helpful parts that often get replaced during deck-related repairs include the v-belt 532138255 and the husqvarna lawn tractor mandrel assembly 532130794.

Why it matters

An engine swap only pays off if the rest of the tractor can reliably use that new power. A solid deck and drivetrain mean you get more seasons out of your Craftsman 917257561 without chasing repeated breakdowns.

For model-specific maintenance intervals, adjustment procedures, and safety steps (including disconnecting the spark plug wire before servicing), use the 917257561 owner’s manual.

Last updated: January 2026

A Craftsman “6.75” walk-behind mower does not have one universal model number; “6.75” is an engine power marking used across many different mower models. For the Craftsman lawn tractor model we support here, the model number is 917257561; use the 917257561 owner's manual to confirm where the tractor and engine model numbers are listed.

How to identify the correct model number on a Craftsman 6.75 walk-behind mower

Use the mower’s model number (not the engine HP) to match the right blade, wheels, and drive parts.

• Look for a model/serial label on the mower deck (top or rear of the deck)
• Check the frame near the rear wheels or handle mounts
• Clean grass buildup off the deck before reading the label
• Write down the full model number exactly as shown (including dots or dashes)
• Record the serial number if it is present

If you are actually working on Craftsman model 917257561 (lawn tractor)

This page is for a Craftsman front-engine lawn tractor, not a 6.75 walk-behind mower. The tractor model number is 917257561, and the manual notes the tractor model plate is located under the seat.

• Tractor model number: 917257561
• Engine model/type: listed on the engine blower housing
• Common tractor parts you may need include the molded ignition key 532140403 if the key is missing or damaged

Quick comparison: “6.75” marking vs model number

What you see	What it means	What to use for parts
6.75	Engine power marking	Not enough by itself
Model number (example format: 917.xxxxxx)	Identifies the mower/tractor	Use this to order parts
Engine model/type numbers	Identifies the engine	Use for engine-specific parts

Why it matters

Using the exact mower model number prevents ordering the wrong blade, belt, or wheel parts; many Craftsman mowers can share the same “6.75” marking but use different components.

Last updated: January 2026