Craftsman 917378361 rotary lawn mower Parts

For Craftsman model 917378361, the fastest way to identify what kind of mower you have is to match the model number on the mower’s ID label to the model number used in parts diagrams and the 917378361 owner’s manual. Once you have the model number, you can also identify the engine by using the engine’s separate model-type-code label.

Where to look for the mower model number

On most Craftsman walk-behind rotary mowers, the mower model number is printed on an ID label located on the rear of the deck, under the handle area, or near the wheel height adjuster.

Use these quick checks:

• Look for a sticker or metal tag with a long number (example: 917378361).
• Wipe off grass and oil film; labels are often hard to read when dirty.
• Write down the full model number exactly as shown.
• Use the model number to match the correct parts diagrams (mower chassis parts).
• Keep the number with your maintenance records for blades, belts, and wheels.

How to identify the engine (separate from the mower)

Walk-behind mowers typically have two identities:

What you are identifying	What it controls	Where to find it
Mower model number (example: 917378361)	Deck, wheels, drive system, bagger, handle controls	Mower deck ID label
Engine model-type-code	Carburetor, ignition, recoil starter, air filter	Engine shroud/valve cover label

Engine labels are commonly on the blower housing (recoil starter cover) or near the spark plug area.

Why it matters

Using the correct mower model number and engine model-type-code prevents ordering the wrong parts and helps you follow the right procedures for setup and operation (for example, the manual notes the mower ships without oil or gasoline, and shows control locations like the primer, oil cap/dipstick, and wheel adjusters).

Last updated: February 2026

On your Craftsman 917378361 rotary lawn mower, the reliable way to identify the carburetor is to record the engine identification numbers (model, type, code) from the engine shroud or block and match them to the correct carburetor in a parts lookup. The carburetor itself may also have stamped numbers.

Where to look for the carburetor ID

Check these common locations:

• Engine shroud or valve cover area for the engine model/type/code label
• Carburetor body near the fuel inlet, primer bulb passage, or mounting flange for stamped numbers
• Air filter housing area (remove the cover) for tags or casting marks
• Primer line and fuel line connection points for manufacturer markings

What numbers matter most (and why)

For walk-behind mowers like the 917378361, the engine ID is usually the best match key because carburetors can look similar across different engines.

What you find	Example format	Best use
Engine model/type/code	Model 12XXXX, Type XXXX-XX, Code YYMMDD	Most accurate way to match the correct carburetor
Carburetor stamped ID	Walbro or Zama style code	Helpful confirmation when ordering
Mower model number	917378361	Helps narrow to the correct parts diagrams

Important note about adjustments

For this Craftsman mower, the owner’s manual states the carburetor is not adjustable. If the engine is running poorly and you suspect a carburetor issue, focus on cleaning, fuel quality, and air filter condition first, then replace the carburetor if needed. See the 917378361 owner’s manual for operating and service guidance.

Why it matters

Ordering the wrong carburetor can cause hard starting, surging, stalling, or a no-start condition. Matching by engine model/type/code prevents mix-ups, especially on primer-style mower engines.

Last updated: February 2026

Common problems on the Craftsman 917378361 rotary lawn mower are no-start, loss of power, uneven cutting, excessive vibration, and a starter rope that is hard to pull. Most of these trace back to fuel quality, airflow (air filter), ignition (spark plug), or a loose/damaged blade and blade adapter; use the 917378361 owner's manual troubleshooting chart to match symptoms to fixes.

Most common symptoms and what usually causes them

• Won’t start: empty or stale gas, dirty air filter, disconnected spark plug wire, worn spark plug, control bar not held to the handle
• Loss of power: cutting too much grass at once, clogged underside of deck, dirty air filter, oil level too high
• Poor cut (uneven): worn/bent blade, wheels set at different heights, debris packed under the deck
• Excessive vibration: loose blade bolt, damaged blade adapter, bent blade, bent crankshaft (often after striking an object)
• Starter rope hard to pull: blade brake engaged when it should not be, blade dragging in grass, internal damage after impact

Quick checks we recommend (fast, high-impact)

1. Confirm you’re holding the control bar fully against the handle while starting.
2. Drain and refill with fresh gasoline if the mower sat for 30+ days.
3. Inspect and clean the air filter; replace if dirty or oil-soaked.
4. Check the spark plug wire is firmly connected; replace the spark plug if worn.
5. Tip the mower safely (spark plug side up) and clean the underside of the deck.
6. Inspect the blade area for looseness or damage; replace the adapter if needed (see lawn mower blade adapter 532418373).

Symptom-to-fix guide

Problem	Most likely fix	Why it matters
Won’t start	Fresh fuel, clean air filter, good spark plug	Restores fuel and ignition basics
Loss of power	Raise cutting height, clean deck	Reduces engine load and drag
Uneven cut	Set wheel heights evenly, replace blade	Improves cut quality and prevents scalping
Vibration	Tighten blade bolt, replace blade/adapter	Protects crankshaft and bearings

Important adjustments to avoid

The engine speed is factory set and the carburetor is not adjustable on this mower; if you suspect a governor or carburetor issue, follow the service guidance in the manual rather than attempting to change settings.

Why it matters

Catching a dirty air filter, stale fuel, or a loose blade early prevents hard starting, poor performance, and impact-related damage that can turn a simple tune-up into a major repair.

Last updated: February 2026

On the Craftsman 917378361 rotary lawn mower, a carburetor problem typically shows up as hard starting, rough running, stalling, or an engine that only runs with the choke on. Because this model’s carburetor is not adjustable, persistent symptoms usually point to cleaning or service rather than tuning; see the 917378361 owner's manual.

Common symptoms you’ll notice

• Engine is hard to start (especially cold starts)
• Engine starts, then stalls or surges at idle
• Runs rough, sputters, or shakes under load
• Loses power while cutting (bogs down in normal grass)
• Only runs with the choke partially or fully on
• Strong fuel smell, black smoke, or spark plug fouling (running too rich)

Quick checks before blaming the carburetor

Many “bad carb” complaints are fuel or airflow issues. We recommend these basics first:

• Use fresh gasoline; old fuel causes varnish and poor starting
• Check the air filter; a dirty filter makes the engine run rich and rough
• Confirm the primer is working (it sends fuel from the carburetor to help cold starting)
• Verify the operator presence control bar is held down fully during starting
• If the mower vibrates abnormally, stop the engine and inspect immediately (vibration is a warning sign)

What the manual says about adjustment (and why it matters)

This mower’s engine speed is factory set and the carburetor is not adjustable. That matters because turning screws to “tune it” is not a fix on this design; cleaning the carburetor passages, addressing stale fuel, or having a service center diagnose the fuel system is the correct path; see the 917378361 owner's manual.

Symptom-to-cause guide

Symptom	Most likely cause	What to do next
Only runs with choke on	Lean condition from clogged carb jets	Drain old fuel, clean carb, check air leaks
Surging at idle	Restricted fuel flow	Clean carb, replace fuel if stale
Black smoke, fuel smell	Running rich	Check air filter, inspect carb float/needle
Starts then dies	Fuel delivery issue	Verify primer/fuel, clean carb bowl and passages

Safety reminder for any checks

• Stop the engine before cleaning or unclogging.
• Disconnect the spark plug wire before working near moving parts.

Related DIY help

If you’re also dealing with starting issues, use lawn mower wont start troubleshooting video fuel ignition and compression to narrow down whether the problem is fuel, spark, or compression.

Last updated: February 2026

For the Craftsman rotary lawn mower model 917378361, the carburetor part number is not listed in the manual parts breakdown excerpts we have for this model; the manual pages shown focus on handle, drive, and gear case components. Use the engine model number (Briggs & Stratton 123K02-0267-E1) from the parts list to match the correct carburetor in the 917378361 owner's manual.

How to identify the correct carburetor for 917378361

Use these checks so you get the right carburetor for the exact engine and linkage setup:

• Confirm the engine model number on the engine shroud matches 123K02-0267-E1.
• Match the carburetor by engine model and type, not by mower deck model alone.
• Compare choke style (manual choke vs. auto choke) and primer bulb setup.
• Verify throttle and governor linkage connection points match your original carb.
• Check air cleaner housing style and mounting pattern before ordering.

Quick reference: mower model vs. engine model

What you have	Where to use it	Why it matters
Craftsman 917378361	Mower parts diagrams (wheels, drive, deck hardware)	Identifies chassis and drive system parts
Briggs & Stratton 123K02-0267-E1	Engine parts lookup (carburetor, gasket set, air filter)	Identifies the correct carburetor family

Related parts that are commonly serviced at the same time

A carburetor replacement often goes smoother when you also inspect fuel and drive-related wear items:

• Drive control and engagement feel: lawn mower drive cable 583134601
• Self-propelled performance: lawn mower ground drive belt, 3/8 x 32-1/2-in 532175436
• Wheel drive wear (if it slips or clicks): lawn mower drive pinion gear 532137054

Why it matters

Carburetors are engine-specific. Even within Craftsman walk-behind mowers, the same deck model family can be paired with different Briggs & Stratton carburetor styles. Matching by engine model prevents hard starting, surging, and linkage misfit.

Last updated: February 2026

The model number for this Craftsman walk-behind rotary lawn mower is 917.378361 (often written without the dot as 917378361). You can confirm it on the mower’s model tag and in the parts diagrams in the 917378361 owner's manual.

Where to find the model number on the mower

We recommend checking these common locations on Craftsman walk-behind mowers:

• On the rear of the deck near the discharge opening
• On the top of the deck near the engine mounting area
• On the handle bracket area (near the height or handle hardware)
• In the manual’s parts list and exploded views

Why you might see a different number

It is common to see several numbers on a mower; only one is the model number.

Number type	What it identifies	Example you may see
Model number	The mower’s full unit ID for parts lookup	917.378361
Engine model number	The engine itself (used for engine-specific parts)	Briggs & Stratton engine model
Part number	A specific replacement part	12000058

In the 917.378361 manual, the engine is listed as a Briggs & Stratton engine (engine model information is shown in the parts listing), which is separate from the mower model number. Use the mower model number for chassis parts like wheels, belts, and cables.

Why it matters

Using the exact model number 917378361 helps us match the correct Craftsman parts and diagrams for items like the drive system, height adjusters, and bagger components. For example, the lawn mower drive cable 583134601 is a model-matched drive control assembly used when the self-propel function will not engage.

Last updated: February 2026

On a Craftsman walk-behind mower, the model number is on the mower itself (not the engine); for this unit it’s 917.378361. We use that mower model number to match the correct deck, handle, wheel, and drive parts; confirm the exact location using the 917378361 owner's manual.

Where to look on the mower

Check these common spots first (wipe off grass and dirt so the label is readable):

• Rear of the mower deck near the discharge opening or rear door
• Top of the deck near the engine mounting area
• On the handle bracket area (near where the lower handle bolts to the deck)
• Near the wheel height adjuster area
• Under the rear flap or bagger opening (if equipped)

Mower model number vs. engine model number

Your mower has two different IDs; both can matter when ordering parts.

What you’re identifying	Example for this mower	What it’s used for
Mower model number	917.378361	Wheels, drive system, deck, handle, bagger
Engine model number	123K02-0267-E1	Engine-specific parts like carburetor, ignition, starter

Why it matters

Using the correct model number prevents ordering the wrong drive belt, wheel parts, or control cable. For example, the self-propel system on this mower uses model-matched parts like the lawn mower drive cable 583134601 and lawn mower ground drive belt, 3/8 x 32-1/2-in 532175436.

Quick tips for reading the label

• Write the number exactly as shown (include dots if present)
• Take a clear photo before the label fades further
• If the label is damaged, use the parts diagram in the 917378361 owner's manual to confirm assemblies

Last updated: February 2026