Craftsman 917377582 rotary lawn mower Parts

The model number is 917377582. On the Craftsman rotary lawn mower ID label, you’ll see it shown as Model No. 917.377582; that is the same model number format used in the parts list and diagrams for this walk-behind mower.

Where to find the model number on the mower

Check these common spots on Craftsman walk-behind mowers:

• Rear of the mower deck near the discharge opening
• Top of the deck near the engine mounting area
• Behind the engine, facing the operator position
• On a sticker or metal tag with the serial number

If the label is dirty or faded, wipe it clean and use a flashlight to read stamped or printed characters.

Model number vs. engine model number (important)

This mower has its own model number, and the engine has a separate model number.

Item	What it identifies	Example from documentation
Mower model number	The Craftsman mower for parts and diagrams	917.377582
Engine model number	The engine itself for engine-specific parts	143.996704

For most chassis and drive parts (blade, wheels, belt, controls), use the mower model number 917377582. For carburetor, recoil starter, or internal engine parts, use the engine model number.

Why it matters

Using the correct model number prevents ordering the wrong parts. Craftsman names like “M140” can describe a mower family, but 917377582 is the exact identifier that matches the correct parts breakdown and hardware.

For diagrams and the official parts list, use the 917377582 owner's manual.

Last updated: February 2026

For Craftsman rotary lawn mower model 917377582, the year is not determined by the model number itself. The model number identifies the mower family, while the manufacture date is typically found on the product ID tag (often shown as a date code) and in some cases referenced in the 917377582 owner's manual.

Where to find the year on the mower

We recommend checking the mower’s product identification label first; that label is what ties your specific unit to a build date.

• Look for a sticker or metal tag on the rear of the deck, near the height adjusters, or around the handle mounting area
• Check near the engine shroud for an engine label (your manual lists an engine model family)
• Write down any date code or serial number exactly as shown
• Compare the label info to the identification section in the 917377582 owner's manual
• If the label is worn, clean it gently and use a flashlight to read stamped characters

Model number vs. date code (quick guide)

Item you see	What it tells you	What to do with it
Model number (917377582)	Which Craftsman walk-behind mower design you have	Use it to match parts and diagrams
Serial number or date code	When your specific mower was built	Use it to determine the year
Engine model (example shown in manual)	Which engine family is installed	Use it for engine-specific parts and tune-up specs

Why it matters

Knowing the correct year helps you avoid ordering the wrong blade, drive parts, or controls when there were mid-production changes. For example, drive system parts like the belt 532157769 must match the exact configuration used on your mower.

Last updated: February 2026

On the Craftsman rotary lawn mower model 917377582, the model number is printed on the mower’s identification label; in the owner documentation it appears as MODEL NO. 917.377582. Use the model number when ordering parts like a blade adapter, drive belt, or control cable to ensure the correct fit.

Where to look on the mower

Check these common spots on walk-behind mowers first:

• Rear of the mower deck near the discharge opening
• Top of the deck near the engine mounting area
• Back of the deck near the rear wheels
• Handle bracket area (where the lower handle bolts to the deck)
• Under the grass bag area (if equipped)

What the number looks like

For this mower, you may see the model number formatted in two ways:

How it may appear	What it means
917377582	Model number (no punctuation)
917.377582	Same model number with a dot

Why it matters

Using the exact model number helps us match the correct Craftsman parts list and diagrams. That prevents ordering look-alike hardware that does not fit, such as the wrong drive belt, wheel parts, or blade mounting components.

Quick tip if the label is hard to read

• Wipe the label with a damp cloth and mild soap
• Use a flashlight at an angle to make faint printing easier to see
• Take a close-up photo and zoom in
• If you only need the engine parts list, the manual also lists the engine as Model No. 143.996704

For diagrams and the official model identification, use the 917377582 owner's manual.

Last updated: February 2026