Craftsman 917377210 rotary lawn mower Parts

On the Craftsman rotary lawn mower model 917377210, the model and serial numbers are printed on a decal attached to the rear of the mower housing (rear of the deck). We recommend writing both down and keeping them with your paperwork for parts lookup and service.

Where to look on the mower

Check these common spots on walk-behind mowers like model 917377210:

• Rear of the mower deck/housing (most common)
• Between the lower handle mounts near the back of the deck
• Near the discharge opening or rear door area (less common)
• On a metal tag or adhesive decal on the deck surface

Use a flashlight and wipe off grass dust; decals can be hard to read when dirty.

What to record (and why)

The decal typically includes both identifiers. Record:

• Model number (used to match diagrams and parts lists)
• Serial number (helps confirm production run and correct part variations)
• Date of purchase (useful for maintenance tracking)

Quick reference table

Item	What it’s used for	Example format
Model number	Finding the correct parts breakdown	917.377210
Serial number	Confirming exact build/version	Letters and numbers

If the decal is missing or unreadable

If the sticker is damaged, try these steps:

• Clean the area with mild soap and water; avoid harsh solvents that can erase printing
• Look for an “imprint” outline where the decal used to be and check nearby surfaces
• Check your paperwork for the model number (manual cover, receipt, service records)
• Use the parts diagrams in the 917377210 owner's manual to match assemblies (deck, handle, drive system) to your mower

Why it matters

Using the exact model number prevents ordering the wrong blade, drive belt, or hardware. For example, this model uses a 22-inch blade listed in the parts breakdown, and the correct match matters for safe cutting performance.

Last updated: January 2026

For the Craftsman model 917377210 rotary lawn mower, use fresh regular unleaded gasoline; in most areas, E10 (up to 10% ethanol) is the right choice. Avoid premium fuel unless your engine label or 917377210 owner's manual specifically calls for it.

What to use (and what to avoid)

• Use: fresh regular unleaded gas (commonly E10)
• Use: clean fuel from a clean, non-rusting gas can
• Avoid: old gas left over from last season
• Avoid: gasoline stored in a rusty or dirty container
• Avoid: filling the tank while the engine is hot or running (let it cool first)

Safe fueling steps we recommend

The manual emphasizes checking the fuel tank before starting and fueling only when conditions are safe.

• Shut the engine off and let it cool for several minutes
• Fuel outdoors, away from ignition sources
• Fill carefully; wipe up any spills before starting
• Tighten the fuel cap securely
• Store extra gasoline safely; do not keep it from one season to the next

Quick guide: fuel freshness and storage

Situation	What we recommend	Why
Gas is new (days to a few weeks)	Use it normally	Best starting and power
Gas has been sitting for months	Replace with fresh fuel	Prevents hard starting and rough running
Gas can shows rust or debris	Replace the can	Rust and dirt cause fuel system problems

Why it matters

Fresh, clean regular unleaded fuel helps your 917377210 start easier, run smoother, and reduces carburetor and fuel-system issues caused by stale gas, dirt, or rust.

Last updated: January 2026

The model number for this Craftsman walk-behind rotary lawn mower is 917.377210 (commonly written without the dot as 917377210). You can confirm it on the model/serial decal attached to the rear of the mower housing; see the 917377210 owner's manual.

Where to find the model number on the mower

Look for the identification decal in the location below:

• Rear of the lawn mower housing (back of the deck)
• On a decal that also lists the serial number
• Best read with the engine off and the mower cooled down
• Wipe off grass and dirt so the numbers are fully visible

What you should record (and why)

We recommend writing down these details and keeping them with your paperwork:

• Model number: 917.377210
• Serial number: from the same decal
• Date of purchase

Why it matters

The model number is what we use to match the correct Craftsman parts diagrams and replacement parts (blade, drive belt, wheels, and hardware). The serial number helps narrow down production variations when a part changed during a run.

Quick ID reference

Item	What to look for	Where
Model number	917.377210 (or 917377210)	Rear housing decal
Serial number	Unique to your mower	Same decal
Engine model (common on this unit)	143.976250	Engine label/manual

Last updated: January 2026