Craftsman 917370951 lawn mower Parts

The model number is 917.370951 (often written without the dot as 917370951). This Craftsman walk-behind mower is identified in the documentation as a rotary lawn mower with a 190cc Honda engine and a 22-inch multi-cut deck; confirm the exact labeling in the 917370951 owner's manual.

Where to find the model number on the mower

We recommend matching the number on the mower to the manual so you order the correct Craftsman parts.

• Check the model tag or decal on the mower deck (typically near the rear or side of the deck)
• Look near the handle mounting area or rear skirt for an ID label
• Compare the printed model number to the manual cover page
• Use the full model number when searching parts diagrams and lists

Model number formats you may see

The same mower can be listed with or without punctuation.

How it may appear	What it means
917.370951	Standard Craftsman manual format
917370951	Common parts lookup format

Why it matters

Using the exact model number ensures the parts list and diagrams match your mower’s configuration (drive system, rear door, discharge components, and hardware). For example, the parts list for model 917370951 includes items like the mulching door 532420019 and specific discharge door springs.

Quick ordering tips

• Copy the model number directly from the mower label
• Match the part name and part ID when ordering (not just a description)
• If you are replacing discharge or rear-door hardware, verify left vs. right orientation before ordering

Last updated: January 2026

On the Craftsman walk-behind mower model 917370951, the serial number is typically on the mower’s product identification label attached to the deck or rear housing area. Use the label to confirm the exact model and order the correct parts and hardware.

Where to look on model 917370951

Check these common label locations on walk-behind mowers:

• Rear of the mower deck near the discharge opening or rear door
• Top of the deck near the engine mounting area
• Rear skirt area (behind the wheels)
• Side of the deck near the height adjuster brackets
• Under the grass bag door or near the bag frame mounting points

For diagrams and model identification details, use the 917370951 owner's manual.

What the ID label usually includes

Most Craftsman walk-behind mower ID labels list:

• Model number (for this unit: 917370951)
• Serial number (unique to your mower)
• Sometimes an engine family or engine model reference

Quick check table

Item	What it’s used for	When you need it
Model number (917370951)	Matches parts diagrams and assemblies	Any time you shop parts
Serial number	Identifies your specific production unit	When contacting support or confirming build details
Engine info	Helps match engine tune-up parts	Spark plug, air filter, carburetor-related work

Why it matters

Using the correct serial and model information helps prevent ordering the wrong parts, especially for fit-sensitive items like the discharge door hardware, drive components, and deck attachments.

If you are replacing missing fasteners around the deck or rear door area after locating the label, a common hardware item for this model is the lawn mower hex flange nut 532409149.

Last updated: January 2026

A 48-inch mower typically takes about 45 to 90 minutes to mow 1 acre, depending on ground speed, turns/obstacles, slope, and how much overlap you need. With a walk-behind like Craftsman 917370951, plan on the longer end because you usually mow slower and overlap more.

Quick time estimate (use this as a starting point)

Most 48-inch decks cut 4 feet per pass. Your real productivity depends mainly on speed and efficiency.

• Fast, open area (minimal obstacles): 45 to 60 minutes
• Average yard (some trees, turns, overlap): 60 to 90 minutes
• Heavy grass or hills: 90+ minutes

For best cut quality, we follow the guidance in the 917370951 owner's manual to mow at a pace that avoids clumping; in heavy grass, you often need to mow slower and overlap more.

What changes the mowing time the most

• Ground speed: faster speed reduces time, but can reduce cut quality
• Overlap: more overlap increases time (common in thick or tall grass)
• Grass conditions: wet or overgrown grass slows you down and can clump
• Obstacles and trimming: trees, beds, and tight corners add turning time
• Bagging vs mulching vs side discharge: bagging can add stops to empty

Simple comparison table (1 acre, 48-inch deck)

Scenario	Typical speed	Efficiency (overlap/turns)	Estimated time
Open, flat	5 mph	~80%	~45 to 55 min
Typical yard	4 mph	~70%	~60 to 75 min
Heavy grass/obstacles	3 mph	~60%	~85 to 100+ min

Why it matters

Mowing too fast often leaves uncut strips, clumps, and uneven results. The manual’s mowing guidance (avoid wet grass, cut only the top third, slow down and overlap in heavy growth) improves cut quality but increases total time. See the mowing tips in the 917370951 owner's manual.

Last updated: January 2026

On the Craftsman 917370951 walk-behind mower, the most common problems are no-start, loss of power, uneven cutting, excessive vibration, starter rope hard to pull, and (if equipped) loss of drive. Our 917370951 owner's manual troubleshooting chart points to the fastest checks first.

Common symptoms and likely causes

• Won’t start: stale fuel, dirty air filter, spark plug/wire issue, control bar not held, fuel valve OFF (if equipped)
• Loss of power: heavy grass load, cutting height too low, grass buildup under deck, dirty air filter, oil level too high
• Poor or uneven cut: worn/bent/loose blade, wheel heights uneven, debris packed under housing
• Excessive vibration: loose/damaged blade, bent crankshaft (stop and inspect)
• Starter rope hard to pull: brake engaged when control bar released, blade dragging in grass, blade adapter issue

Quick checks we recommend (fastest wins)

• Drain old gas and refill with fresh fuel; confirm fuel valve ON (if equipped)
• Clean or replace the air filter
• Remove grass, leaves, and trash from under the mower housing
• Match wheel height settings side-to-side; raise cut height for tall or wet grass
• Inspect blade tightness and condition; replace damaged hardware

Troubleshooting guide by symptom

Symptom	Most likely cause	First action
Won’t start	Stale fuel, dirty air filter, plug issue	Refresh fuel; service filter; check plug/wire
Loss of power	Deck buildup, heavy grass	Clean underside; raise cut height; mow slower
Uneven cut	Blade wear, wheel heights uneven	Inspect blade; set wheels evenly
Won’t stay running	Control bar/cable issue	Check control bar travel and cable tension

Parts that often solve handling or control issues

• Craftsman lawn mower zone control cable 580625701 (engine won’t keep running when you hold the control bar)
• Lawn mower wheel, 8 x 1.75-in 583733801 (wobble, poor tracking, hard push)

Why it matters

Most mower problems start with fuel quality, airflow restriction, or deck buildup; fixing those early prevents hard starting, poor cutting, and vibration that can damage the blade or crankshaft.

Last updated: January 2026