Craftsman 917375450 lawn mower Parts

For your Craftsman walk-behind mower, the model number is printed on the mower’s ID label (often called the model tag) mounted on the deck housing or rear of the mower. For this parts page, the correct model number format looks like 917.375450 (often shown without the dot as 917375450).

Where to look on model 917375450

Check these common ID-label locations first (wipe off grass and dirt so you can read it clearly):

• On top of the mower deck near the engine
• On the rear of the deck, behind the engine
• Near the rear discharge area or bagging opening
• On the handle bracket area near the deck
• Under a flap or cover near the deck edge

For diagrams and label examples that match your mower, use the 917375450 owner's manual.

What to write down (so parts match)

Record the information exactly as shown on the tag:

• Model number (example: 917.375450)
• Product number (if listed)
• Serial number
• Engine model/type/code (engine parts often use this)

Quick check: model number vs. engine number

You need parts for	Use this number	Where it’s found
Mower deck, wheels, drive system, handle	Mower model number (917375450)	Mower ID label on the deck
Carburetor, air filter, starter, ignition	Engine model/type/code	Engine label on the engine shroud

Why it matters

Craftsman walk-behind mowers can look identical across multiple model numbers, but use different drive belts, wheels, and controls. Using the exact model number helps us match the correct diagrams and parts, like the lawn mower ground drive belt 532196853 when you’re troubleshooting self-propel issues.

Last updated: February 2026

The model number is 917375450. On Craftsman walk-behind mowers, the model number is the primary identifier we use to match the correct parts, diagrams, and maintenance information for your exact mower; see the 917375450 owner's manual for the model ID locations.

Where to find the model number on the mower

Most Craftsman walk-behind mowers show the model number on a label or stamped plate. Check these common spots:

• Rear of the deck near the discharge opening
• Top of the deck near the engine mounting area
• Back of the mower housing near the height adjusters
• Handle support/bracket area
• Under the rear flap or near the bagger mounting points

What to write down (so parts match the first time)

When you locate the ID label, record these details:

• Model number: 917375450
• Product name/brand: Craftsman walk-behind mower
• Any additional numbers on the tag (often a serial or production code)
• Engine brand and engine model (helpful for tune-up parts)

ID you see	What it’s used for	Example for this mower
Model number	Matches mower chassis parts and diagrams	917375450
Serial/production code	Helps confirm production run details	Varies
Engine model	Matches engine-specific parts (plug, filter, carb parts)	Varies

Why it matters

Craftsman model numbers can look similar across different mower versions. Using 917375450 ensures you get the right walk-behind mower parts such as the lawn mower blade 580244002, drive components, and deck hardware.

Last updated: February 2026

For a Craftsman walk-behind mower model 917375450, the serial number can often tell you the build date, but the format depends on who manufactured the mower and the engine. We use the serial tag on the mower (and the engine code on the engine) to pinpoint the year and sometimes the exact week or day.

Where to find the serial number (and the engine date)

Check these common locations:

• On the mower deck, usually near the rear wheel area or discharge opening
• On the handle bracket or rear skirt area
• On the engine itself (engine model/type/code label or stamped code)
• In the Craftsman 917375450 owner's manual under identification or service information

How to decode it (what the numbers usually mean)

Serial number formats vary, so we recommend checking both the mower serial and the engine code.

• If you see a clear date pattern like MMDDYY or YYMMDD, that is typically the manufacture date.
• If the serial starts with a year/week style code, the first digits often represent the year and production week.
• If the mower serial is unclear, the engine code is often the fastest way to date the machine because engines commonly include a manufacture date in the code.

Quick decoding guide

What you find	What it usually tells you	Best next step
Mower serial has a date-like pattern	Exact build date	Write it down and match to MM/DD/YY or YY/MM/DD
Mower serial looks like year + week	Approximate build period	Convert week number to a calendar week
Engine has a model/type/code	Engine manufacture date	Use the engine code date format to determine year

Steps we use to determine the mower’s age

• Record the full model number (917375450) and the full serial number exactly as shown
• Record the engine code (photo helps)
• Decode the engine date first, then compare it to the mower serial date code
• If dates differ, use the newer of the two as the likely final assembly timeframe

Why it matters

Knowing the manufacture date helps us match the correct Craftsman parts and diagrams for wear items like the blade, drive system, and controls, especially when a model has mid-year production changes.

Last updated: February 2026

The 754-05025 belt is commonly sold as a 54-inch deck belt (about 54 inches effective length) on many riding mower deck applications. For your Craftsman 917375450 walk-behind mower, we use the model’s parts list in the 917375450 owner's manual to confirm the correct belt and size before ordering.

Make sure the belt number matches your mower

Walk-behind mowers like the Craftsman 917375450 typically use a ground drive belt (self-propel belt), not a “deck belt.” If you install the wrong belt length, the mower can slip, squeal, or not self-propel.

Check these items on your mower:

• Where the belt is used: self-propel drive vs blade/deck drive
• The belt marking: 754-05025 vs a similar suffix (A, B, etc.)
• Pulley layout: idler pulley and transmission pulley positions
• Belt width profile: fractional-horsepower style belts are common on walk-behinds
• Whether the belt is stretched, glazed, or cracked (a worn belt can “measure” longer)

What belt length numbers usually mean

Belt listings often show one of these measurements; sellers do not always label them the same way.

Listing term	What it usually represents	Why it matters
Effective length (EL)	Working length around pulleys	Best for matching fit
Outside length (OL)	Measured around the belt’s outer edge	Often reads longer
Inside length (IL)	Measured around the belt’s inner edge	Often reads shorter

If your mower will not move (belt-related quick checks)

Before replacing parts, we check the basics that cause “no drive” symptoms:

• Inspect belt for glazing, cracks, or missing chunks
• Verify the drive cable has tension and returns freely
• Check the drive pulley and idler for wobble or binding
• Look for debris wrapped around the transmission input or wheels
• Confirm the belt is routed correctly per the 917375450 owner's manual

If you need the self-propel belt for this model, the correct model-matched option is the lawn mower ground drive belt 532196853.

Why it matters

A belt that is even slightly off in length or profile changes pulley engagement. That leads to poor traction, premature belt wear, and extra strain on the transmission and idler system.

Last updated: February 2026

On a Craftsman walk-behind mower like model 917375450, the serial number format varies by manufacturer and production run, so we use the ID label plus the model number to interpret it correctly. Start by locating the serial tag, then match its pattern using the 917375450 owner's manual.

Where to find the serial number on a walk-behind mower

Most Craftsman walk-behind mowers place the model and serial information on a sticker or stamped tag in one of these spots:

• Rear of the mower deck (near the discharge opening)
• Top of the deck near the engine mounting area
• Back panel near the bagger opening or rear skirt
• Handle bracket area (left or right side)

How to interpret the serial number (common patterns)

Craftsman equipment has been built by different manufacturers over the years, so serial numbers are not one universal code. These are the most common ways they’re structured:

• Date-coded serials: a section of the serial indicates month, day, and year
• Julian date serials: a 3-digit day-of-year plus a year digit
• Production/sequence serials: no readable date; it’s a build sequence used for parts tracking

Quick check table

What you see in the serial	What it usually means	What to do next
Looks like MMDDYY (or similar)	Date-coded build date	Confirm the exact positions in the manual
3 digits like 001-365	Julian day of year	Convert day-of-year to a calendar date
Long number with no obvious date	Production sequence	Use it to confirm parts compatibility

Why it matters

Reading the serial number correctly helps us match the right Craftsman parts for your 917375450 mower, especially for items that change by production run (drive system hardware, deck components, and controls).

Tip for parts and repairs

When ordering or troubleshooting, record both:

• Model number: 917375450
• Full serial number exactly as printed

If you’re servicing the cutting system, our DIY guides like how to sharpen a lawn mower blade can also help you avoid common blade and deck issues.

Last updated: February 2026

Common problems on Craftsman walk-behind mowers like model 917375450 usually fall into a few buckets: hard starting, poor cutting, excessive vibration, and self-propel/drive issues. Most fixes start with basic maintenance checks, then move to inspecting wear parts and linkages.

Most common issues we see (and what they point to)

• Won’t start or starts then dies: stale fuel, dirty carburetor, fouled spark plug, clogged air filter
• Rough running or surging: fuel restriction, dirty carburetor jets, vacuum leak, old gas
• Cuts unevenly or leaves strips: dull/bent blade, deck packed with grass, cutting height mis-set
• Excessive vibration: bent blade, loose blade bolt, damaged blade adapter (if equipped)
• Self-propel won’t move or slips: stretched/worn drive belt, cable out of adjustment, worn transmission components
• Grass clumps or poor bagging: wet grass, clogged deck, damaged deflector or mulching door

Quick checks to do first (5 to 10 minutes)

1. Fuel: drain old gas and refill with fresh fuel (especially after storage).
2. Spark plug: inspect and replace if fouled or worn.
3. Air filter: clean or replace if dirty.
4. Blade and deck: clean the underside of the deck and inspect the blade.
5. Drive system (self-propel models): check belt condition and cable tension.

Parts that commonly wear on this model

These are frequent “wear item” culprits on Craftsman 917375450 mowers:

Symptom	Common wear area	Example part for this model
Mower won’t self-propel	Belt/cable	Lawn mower ground drive belt 532196853
Poor discharge or safety flap won’t close right	Deflector/door	Lawn mower clipping deflector 532426129
Uneven cut or tearing grass	Blade	Lawn mower blade 580244002

Why it matters

Catching these problems early prevents bigger failures (like a damaged transmission or deck) and improves cut quality, bagging performance, and engine life.

Helpful DIY guides

• For blade service and safety: how to sharpen a lawn mower blade

For model-specific adjustment points, belt routing, and safety instructions, follow the 917375450 owner’s manual.

Last updated: February 2026

Craftsman walk-behind mowers (including model 917375450) are commonly equipped with engines supplied by major small-engine manufacturers; the most common supplier is Briggs & Stratton, with some Craftsman models using Kohler or Kawasaki engines depending on the specific mower series and production run. For your exact engine identification, we use the engine model and type codes shown in the 917375450 owner's manual.

How to identify the engine brand on your 917375450

Use these quick checks on the mower itself (no disassembly needed):

• Look for the engine shroud decal (usually says Briggs & Stratton, Kohler, or Kawasaki).
• Check the valve cover or recoil starter housing for a brand badge.
• Find the engine ID tag (often near the muffler, flywheel cover, or above the spark plug).
• Record the engine model, type, and code (or spec number) exactly as printed.
• Match that information to the engine section in the 917375450 owner's manual.

Why the engine brand matters (parts and service)

Craftsman is the mower brand, but many tune-up and repair parts are engine-specific. The engine brand and model determine the correct spark plug, air filter, carburetor parts, and governor settings.

Common examples of engine-specific items

Item	Chosen by mower model (917375450)	Chosen by engine model/type
Blade and deck hardware	Often mower-specific	Rarely
Drive system parts	Yes (belt, transmission, wheels)	No
Air filter and spark plug	Sometimes	Yes
Carburetor and fuel system parts	Sometimes	Yes

Related mower parts that are mower-model specific

If you are troubleshooting drive or cutting performance, these parts are tied to the mower platform (not the engine brand):

• Lawn mower blade 580244002 for cutting quality issues (uneven cut, tearing).
• Lawn mower ground drive belt 532196853 for self-propel problems (slipping or no drive).
• Drive cable 532447570 if the drive control feels loose or does not engage.

Helpful DIY guidance

• For blade service, we follow the steps in how to sharpen a lawn mower blade.

Why it matters

Ordering by the correct engine brand and engine model prevents wrong tune-up parts, hard starting, and poor performance. Ordering by the correct mower model (917375450) prevents fit issues with deck, wheels, and drive components.

Last updated: February 2026

For a Craftsman walk-behind mower like model 917375450, repairing is cheaper when the fix is a normal wear item (blade, belt, cable). Replace the mower when a major failure pushes the repair estimate to about 50% or more of the cost of a comparable new mower.

Quick rule of thumb (cost vs. value)

Use this simple decision check before buying parts:

• Repair if the mower runs well and the problem is a wear part or adjustment
• Repair if the estimate is under ~50% of replacement cost
• Replace if the engine has low compression, heavy smoke, or severe internal damage
• Replace if the drive system needs multiple major components at once (belt plus transmission plus wheels)
• Replace if the deck is cracked or badly rusted through (structural damage)

Common repairs that are usually worth it

These are typical, cost-effective fixes on self-propelled walk-behind mowers:

• Replace a worn drive belt such as the lawn mower ground drive belt 532196853
• Replace a stretched or sticking drive cable such as the drive cable 532447570
• Replace a bent or dull blade such as the lawn mower blade 580244002
• Replace a damaged discharge component such as the lawn mower clipping deflector 532426129

Repair vs. replace comparison

Situation	Usually best choice	Why
Mower starts and cuts, but will not self-propel	Repair	Often a belt, cable, pulley, or wheel issue
Blade is dull, bent, or vibrating	Repair	Blade service is routine maintenance
Transmission assembly failure	Depends on total estimate	Parts and labor can add up quickly
Engine has major internal damage	Replace	Engine repair/replacement often approaches mower value

Why it matters

Choosing repair vs. replace the right way saves money and time. On model 917375450, many drive and cutting problems trace back to serviceable parts, but major engine or transmission failures can turn into a high-cost repair fast.

What we recommend doing next

• Price a comparable new mower first (so you have a real replacement number)
• List the failed parts and add them up (parts plus any shop labor)
• Check the maintenance and adjustment steps in the 917375450 owner's manual
• If the mower “won’t move,” use the lawn mower wont move troubleshooting video motion drive failure guide to narrow it down before ordering parts

Last updated: February 2026