Craftsman 917387402 rotary lawn mower Parts

For the Craftsman rotary lawn mower model 917387402, we recommend using fresh 87-octane (regular) unleaded gasoline for normal mowing. Higher octane (like 91) does not add power or improve reliability in this mower; fuel freshness and proper maintenance matter more. See the 917387402 owner's manual for fueling and safety steps.

• Use 87 octane unleaded gasoline from a busy station (fresher fuel).
• Avoid stale gas (old fuel is a common no-start cause).
• Avoid fuel contaminated with water or dirt (also a common no-start cause).
• If you store fuel, use a stabilizer and keep the can clean and rust-free.
• Wipe up spills and let the engine cool before refueling.

Stale fuel is one of the most common reasons a mower will not start. If the mower ran fine last season and now will not start:

• Drain old fuel and refill with fresh gas
• Check the air filter and spark plug condition
• Inspect the blade area for binding (a damaged blade adapter can contribute to starting issues)
• Follow safe service steps (stop engine, disconnect spark plug wire)

If you are servicing the blade during maintenance, use the correct hardware and tighten securely; the lawn mower mulching blade 532406713 is a common wear item on this model.

Using the right fuel helps prevent hard starting, rough running, and carburetor problems. In small engines, fresh, clean gasoline and routine tune-up items typically make a bigger difference than stepping up from 87 to 91 octane.

Last updated: January 2026

Hydrostatic transmission repairs are typically a riding-mower cost; the Craftsman 917387402 is a 22-inch walk-behind rotary lawn mower and does not use a hydrostatic transmission. If you’re pricing a hydrostatic repair for a different mower, typical costs range from a fluid/service-level repair to a full transmission replacement.

Hydrostatic systems are expensive because the pump and motor are a matched assembly and labor time is high.

• Basic service (fluid, filter, purge, linkage adjustment): often $150 to $500
• Moderate repair (leaks, hoses, fan, pulleys, belt issues): often $200 to $900
• Full hydrostatic transaxle replacement: commonly $800 to $2,500 installed (parts and labor)

• Whether the unit is serviceable (fluid/filter) or sealed (replacement only)
• Labor time to remove the transaxle and set belt tension and linkages
• Related wear items (drive belt, idlers, pulleys, axle seals)
• Whether the failure is loss of drive vs. noise/overheating/leaking
• Availability of OEM parts for your exact model

Use this as a fast ID guide.

Pricing the wrong drive type leads to overbuying parts. On the Craftsman 917387402 walk-behind mower, most “won’t move” complaints are usually belt, cable, or wheel-drive issues, not a hydrostatic transmission.

For model-specific drive and maintenance details, use the 917387402 owner’s manual.

Last updated: January 2026

Yes, it’s okay to pull a Craftsman rotary lawn mower model 917387402 backward for repositioning; the drive wheels typically freewheel when you roll the mower back. For safety, we recommend releasing the drive control and keeping the blade control engaged only when you’re ready to mow, per the 917387402 owner’s manual.

• Release the self-propel/drive lever (so the transmission is not trying to push).
• Keep both hands on the handle and walk, don’t run.
• Back up only far enough to reposition; then resume mowing forward.
• Never pull the mower toward you while the blade is engaged.
• Stop the engine before leaving the mower or crossing gravel, walks, or driveways.

The biggest risk is not the drive system; it’s blade contact and loss of footing. The manual warns against cutting by pulling the mower toward you and stresses stopping the engine before inspecting or servicing.

A mower that is difficult to roll can point to drag at the deck or blade area, or a drive system that is not fully disengaging.

• Check for grass buildup under the deck.
• Verify the drive lever fully returns to the “off” position.
• Inspect the blade area for damage after hitting an object.
• If you see blade-related hardware looseness, inspect the blade mounting stack (blade, adapter, washers, bolt).

If you’re servicing the blade mount on this model, use the correct hardware such as the washer blade 532401630 and tighten fasteners securely.

Backing up is normal during trimming and turning, but safe technique prevents the most common mower injuries and helps avoid vibration, poor cut, and premature wear in the blade adapter and drive components.

Last updated: January 2026

The model number for this Craftsman walk-behind rotary lawn mower is 917.387402 (often written without the dot as 917387402). You’ll find the model and serial number on a decal attached to the rear of the mower housing; confirm it there before ordering parts.

Check these common locations on Craftsman walk-behind mowers:

• Rear of the mower deck or housing (decal on the back of the unit)
• Near the height-adjuster area on the deck
• On the handle support area (less common)
• In the documentation for the mower

For diagrams and the exact identification notes for this unit, use the 917387402 owner's manual.

Both formats refer to the same mower model; the dot is a formatting style used on many Craftsman labels and manuals.

When you’re matching parts like a blade, blade adapter, or control cable, the model number alone is not always enough; the serial number can matter for production changes.

• Write down the full model number and serial number from the decal
• Match the part name and diagram position in the manual
• Replace blade hardware if it’s worn or damaged
• Use the correct torque when reinstalling the blade (the manual lists blade bolt torque)

If you’re servicing the cutting system, common related parts for this model include the lawn mower mulching blade 532406713 and the lawn mower blade adapter 581547901.

Using the correct model number ensures you get parts that fit your Craftsman 917387402 mower correctly, especially for deck components, handle hardware, and engine control parts.

Last updated: January 2026