Craftsman 917377425 rotary lawn mower Parts

On the Craftsman 917377425 rotary lawn mower, “prime and pull start” means you press the primer to pump a small amount of fuel into the engine for cold starting, then pull the starter handle to crank the engine until it starts. See the starting steps in the owner's manual.

We follow these steps for this mower style:

• Push the primer 3 times before starting a cold engine.
• Hold the operator presence control bar down to the handle.
• Pull the starter handle quickly with a smooth, firm motion.
• Do not let the starter rope snap back; guide it back in.
• To stop the engine, release the operator presence control bar.

Priming adds extra fuel for a cold start. It is usually not needed if the engine has already run in the last few minutes.

These checks solve most “prime and pull” starting problems:

• Make sure the operator presence control bar is fully held down.
• Avoid over-priming; too much fuel can flood the engine.
• Check for old gas; stale fuel can cause hard starting.
• Inspect the starter rope and recoil action if the pull feels stuck.
• Review seasonal storage and fuel-draining steps in the owner's manual.

Using the primer correctly prevents flooding, reduces pull-start effort, and helps protect the carburetor and fuel system, especially after storage longer than 30 days.

Last updated: February 2026

The Craftsman 917377425 is not a riding mower model number; it identifies a Craftsman 6.5 HP, 22-inch, side-discharge, power-propelled rotary walk-behind lawn mower. For model-specific identification details and the correct parts breakdown, use the owner's manual.

The documentation for model 917.377425 lists it as a rotary lawn mower with 22-inch side discharge and includes walk-behind components like the handle, zone control cable, and gear case assembly.

Riding mower model numbers are typically found on the frame under the seat, near the rear fender, or on the mower deck (location varies by design). Use these checks:

• Look for a product tag that says Model and Serial
• Write the model number exactly as shown (letters and numbers)
• Confirm whether the unit is walk-behind (push/propel) or riding (seat and steering)
• Match the model number to the correct parts list before ordering
• Use the manual for your exact model to confirm engine and deck details

Using the wrong model number can lead to ordering parts that do not fit. For example, this model’s parts list includes items like the lawn mower blade 532406713 and belt 532157769, which are typical walk-behind components, not riding mower deck or transmission parts.

Last updated: February 2026

A “Craftsman 42-inch deck” belt size depends on the exact riding mower model and deck configuration; it is not the same as the self-propel (drive) belt used on the Craftsman 917377425 walk-behind mower. For model 917377425, the correct drive belt is the V-belt shown in the parts list and diagram in the owner's manual.

A 42-inch deck belt is for a riding mower deck, not a walk-behind mower. To get the correct belt size, match these details:

• Riding mower model number (from the frame tag)
• Deck model number (often separate from the tractor model)
• Belt routing style (single belt vs. multiple belts)
• Whether the belt is a deck drive belt or a blade/mandrel belt
• The belt you are replacing (numbers printed on the belt, if readable)

For your Craftsman 917377425 rotary lawn mower, the belt in the drive system is listed as a V-belt in the repair parts section.

• If your mower has a 22-inch blade and is self-propelled, you are in the walk-behind category (917377425).
• If you sit on the mower and it has a 42-inch cutting deck, you need the riding mower model number to select the correct deck belt.
• If the old belt is intact, use its printed number as the fastest match.

Belt width and effective length control pulley engagement and blade speed. The wrong belt can slip, jump off, or overload bearings and pulleys, leading to poor cut quality and premature wear.

Last updated: February 2026

Craftsman rotary lawn mower model 917377425 does not have a single built-in “model year”; the model number identifies the product family, not the manufacturing date. To find the year, we use the mower’s product/serial number label and match it to the date-code format shown in the owner's manual.

Look for a sticker or stamped tag on the mower; common locations include:

• On the rear of the deck near the discharge opening
• Under the handle mounting area
• Near the engine mounting plate
• On the wheel height adjuster area

On many Craftsman walk-behind mowers, the serial or product number includes a date code. When you locate the label, compare it to the identification and parts information in the manual.

Typical clues that you have the right code:

• A longer number than the model number (often 8 to 12+ characters)
• A mix of numbers and letters
• A separate line labeled “Serial,” “Product,” or “MFG”

Use this to keep the numbers straight while you’re checking the tag.

The correct year (from the serial/product label) helps us match the right blade, drive parts, and hardware for your exact build. For example, this model uses parts like the lawn mower blade 532406713 and the belt 532157769, and small changes by production run can affect fit.

Last updated: February 2026