Craftsman 917255912 gt 18 twin-garden tractor Parts

Yes, many Craftsman mowers and tractors use Briggs and Stratton engines, but it depends on the specific model and production year. For a Craftsman riding tractor like model 917255912, the engine brand is confirmed by checking the engine ID tag and matching it to the correct parts list.

How to tell what engine is on Craftsman 917255912

Use these quick checks to identify the engine manufacturer and family:

• Look for an engine label on the blower housing, valve cover, or near the starter
• Record the engine model, type, and code (common on Briggs and Stratton)
• Check whether the tractor has a twin-cylinder layout (common on many GT 18 twin setups)
• Compare the engine tag info to the parts you need (filters, ignition, fuel system)
• If the label is missing, use the tractor model number 917255912 to narrow down compatible assemblies

Common engine brands you may see on Craftsman equipment

Craftsman has used multiple engine suppliers across different mower lines. Here is what we typically see:

Engine brand	Where it’s commonly found	What the ID tag often looks like
Briggs and Stratton	Many walk-behind mowers and some riders	Model-Type-Code format
Kohler	Many riding mowers and garden tractors	Model and spec number
Tecumseh (older units)	Older walk-behind and riders	Model and serial style tag

Why it matters when ordering parts

The tractor model number gets you to the right chassis and deck parts, but engine parts (carburetor, ignition, starter, fuel components) must match the engine’s exact ID. For example, if you are chasing a fuel leak or contamination issue, replacing the correct tank and fittings is key, such as the fuel tank 532151346 when it matches your configuration.

Related parts that are tractor-specific (not engine-specific)

If your question is really about tractor hardware, these parts are typically tied to the chassis rather than the engine brand:

• Lawn tractor ignition switch 532365402 (starting circuit and key switch)
• Ground drive and deck belts (matched to deck and transmission setup)
• Wheel and axle hardware (bearings, clips, hub caps)

Last updated: February 2026

For a Craftsman riding tractor like model 917255912, a complete engine replacement typically costs $260 to $1,800 installed, depending on the engine type, labor rates, and whether you replace related wear items at the same time.

What drives the total cost?

• Engine type and horsepower (V-twin engines and higher HP cost more)
• New vs. rebuilt vs. used engine (new is highest cost, used is lowest)
• Labor time (riding mower engine swaps commonly take around 6 hours)
• Extra parts replaced “while you’re in there” (belts, pulleys, wiring, fuel parts)
• Shop fees and pickup/delivery (varies by area)

Typical price ranges (parts and labor)

Replacement approach	What you’re paying for	Typical total cost
Used engine	Lowest upfront cost, unknown wear	$260 to $900
Rebuilt engine	Mid-range cost, refreshed internals	$600 to $1,400
New engine	Highest reliability, highest cost	$900 to $1,800

Parts we often recommend checking during an engine swap

Replacing an engine can expose worn drive and PTO components. On model 917255912, common “check and replace if worn” items include:

• Deck belt condition and routing; consider the lawn mower blade drive belt 582778701
• Ground drive belt glazing or cracking; consider the ground drive belt 583639501
• PTO engagement issues; inspect the lawn tractor pto switch 532407863
• Starting and key issues; inspect the lawn tractor ignition switch 532365402
• Fuel leaks or contamination; inspect the fuel tank 532151346

Why it matters

A replacement engine is a major investment. Pricing the job correctly means accounting for labor time and the related belt, PTO, fuel, and electrical items that can cause problems right after the new engine goes in.

Last updated: February 2026

If you’re on this Craftsman model page, your lawn tractor is Craftsman model 917255912 (a GT 18 twin-garden tractor). To confirm on the machine, match the model number on the product identification label to 917255912.

Where to find the model number on the tractor

On most Craftsman riding mowers and garden tractors, the product identification label is located in one of these common spots:

• Under the seat (often on the underside of the seat or on the fender pan beneath it)
• On the frame near the seat mounting area
• Near the rear hitch plate or rear frame crossmember
• Under the hood area on the chassis rail (less common)

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

What to write down (so you get the right parts)

For parts lookup and repairs, we recommend recording these items exactly as shown on the label:

• Model number (for this tractor: 917255912)
• Product number (sometimes listed separately)
• Serial number (helps confirm production run)
• Engine model and type (engine parts are often matched by engine ID, not tractor ID)

Quick ID check: model number vs. part numbers

Use this as a simple way to avoid mix-ups when ordering parts.

Item type	Example from this model page	What it’s used for
Model number	917255912	Identifies the tractor for diagrams and chassis parts
Part ID	532365402	Identifies a specific replacement part listing
Part number	STD365402	Manufacturer number used across brands/models

Why it matters

Craftsman tractors can look similar across years, but belts, pulleys, electrical switches, and steering or axle hardware can vary by model. Matching 917255912 helps ensure the correct fit for items like the lawn tractor ignition switch 532365402 or a drive belt.

Last updated: February 2026

A lawn mower or lawn tractor engine is built from fuel, air, ignition, and rotating internal components that work together to create power. On Craftsman model 917255912, the exact layout varies by engine family, but the core engine parts and their jobs stay the same.

Main engine systems and common parts

• Fuel system: fuel tank, fuel line, fuel filter, carburetor (or fuel pump on some engines)
• Air intake: air filter, intake tube, choke plate
• Ignition: ignition coil/module, spark plug, flywheel magnets, kill wire
• Engine internals: piston, rings, connecting rod, crankshaft, camshaft, valves
• Lubrication: oil sump/crankcase, oil fill/dipstick, oil drain, breather
• Starting/charging (if equipped): starter motor or recoil starter, solenoid, alternator/stator, battery
• Cooling: cooling fins, blower housing, flywheel fan

Quick “what it does” table

Part or system	What it does	Common symptom when it fails
Fuel tank/carburetor	Stores and meters fuel	Hard starting, surging, stalling
Air filter	Keeps dirt out of engine	Black smoke, loss of power
Ignition coil/spark plug	Creates spark	No-start, misfire
Crankshaft/piston/valves	Makes compression and power	Low power, knocking, smoke

Parts on this model page that relate to engine operation

These parts are commonly involved when a tractor will not start or will not keep running:

• Fuel tank 532151346 (fuel storage and supply to the engine)
• Lawn tractor ignition switch 532365402 (sends power to ignition and starter circuits)
• Lawn tractor pto switch 532407863 (safety/interlock that can prevent starting on some setups)

Why it matters

Knowing which system you are troubleshooting (fuel, air, ignition, or mechanical) helps you avoid replacing the wrong parts. For example, a no-start is often ignition or safety-interlock related, while surging is often fuel or air related.

Last updated: February 2026

On a Craftsman riding mower like model 917255912, the year is typically encoded in the serial number or date code on the product ID label. Many Craftsman-built units use a 6-digit date format where the last two digits represent the year (for example, …11 = 2011).

Where to find the serial number or date code

Look for a product ID label in one of these common spots:

• Under the seat on the seat pan or fender pan
• On the frame rail near the engine
• Near the rear hitch plate
• Under the hood near the dash tower

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

How to decode the year (common Craftsman date-code format)

A very common format is MMDDYY:

• First 2 digits = month
• Next 2 digits = day
• Last 2 digits = year

Quick example

Code format	Example code	Interprets as
MMDDYY	072811	July 28, 2011

If your serial number does not match MMDDYY

Some Craftsman tractors use a longer serial number where the date is embedded. In that case, we use these checks:

• Look for a separate “Date” or “MFG Date” line on the label
• Check for a 6-digit block within the serial that matches a valid month/day
• Compare the tractor’s configuration (engine, deck, wiring) to the parts list for 917255912

Why it matters

Knowing the build year helps us match the correct Craftsman parts and revisions (belts, pulleys, switches, and fuel system components) so you avoid ordering a look-alike part that will not fit.

Helpful related part example

If you are already servicing the tractor while you confirm the year, a common wear item to inspect is the ground drive belt 583639501 for cracking, glazing, or stretching.

Last updated: February 2026