Craftsman 917388820 lawn mower Parts

A hydrostatic transmission repair is typically a riding-mower cost; Craftsman model 917388820 is a gas walk-behind mower and normally does not use a hydrostatic transmission. For this model, most “won’t move” or drive issues are usually cable, wheel, or deck-related and cost far less than a transmission replacement; use the owner's manual to confirm your drive system and service steps.

Typical cost ranges (so you can budget)

Hydrostatic transmission pricing varies by mower type and what failed.

• Diagnosis/labor: commonly 1 to 2 hours of shop time
• Hydrostatic service (fluid, purge, linkage adjustment): often lower-cost if the unit is serviceable
• Hydrostatic replacement (riding mowers): commonly the highest-cost scenario
• Walk-behind drive repairs: usually involve cables, wheels, brackets, or hardware

Repair scenario	Most common on	Typical cost level
Linkage/cable adjustment or replacement	Walk-behind and riding	Low to medium
Hydrostatic unit service (if serviceable)	Riding mowers	Medium
Hydrostatic transmission replacement	Riding mowers	High

What to check first on Craftsman 917388820

If your mower is hard to push, won’t self-propel, or feels like it is slipping, we recommend checking these items before assuming a transmission problem:

• Confirm the operator control/drive bail is fully engaging and returning freely
• Inspect the drive/zone control cable routing and tension; replace a stretched or kinked cable
• Check wheel hardware for looseness or binding (axle, brackets, fasteners)
• Look for deck buildup that can drag on the ground and overload the drive
• Verify the blade area is clear and the blade adapter is not damaged (impact damage can cause vibration and drag)

Helpful parts we stock for this model include the walk-behind lawn mower engine cable 532176556 and common hardware like the lock nut 532409149.

Why it matters

Hydrostatic repairs can be expensive on riding mowers, so confirming your mower’s drive design first prevents overspending and speeds up the correct fix. On a walk-behind mower like the Craftsman 917388820, a simple cable or wheel repair often restores drive performance.

Last updated: February 2026

To find the right parts for your Craftsman walk-behind mower model 917388820, match the model number from the mower’s ID label to the parts list and diagrams in the owner's manual. Once you have the correct diagram, you can identify the exact part name and part ID to order.

Where to find the model number on the mower

For Craftsman model 917388820, the model/parts label is typically on the rear frame between the wheels. Use that full model number when searching parts so you get the correct deck, handle, and hardware matches.

Fast way to look up the correct part

We recommend using the repair parts diagrams first, then ordering by the exact part ID.

• Find the model number on the rear frame label (between the wheels)
• Open the repair parts diagrams in the owner's manual
• Locate the section that matches what you are fixing (handle, deck, wheels, blade area)
• Match the diagram “key number” to the parts list description
• Order using the exact part ID and part name (this avoids wrong-fit hardware)

Common parts customers replace on this model

These are examples of parts shown for model 917388820 that often come up during repairs and maintenance:

What you are fixing	What to look for in the diagram/parts list	Example part on this model
Blade won’t stay tight or blade hardware is damaged	Blade, adapter, lock nut, washer	Lawn mower blade adapter 532418373
Blade change or seasonal blade replacement	21-in deck blade	Husqvarna lawn mower 21-in deck 3-in-1 blade 532189028
Engine won’t keep running when you release the control bar	Zone control cable / engine cable	Walk-behind lawn mower engine cable 532176556
Height adjustment issues	Height adjuster knob, selector spring	Husqvarna lawn mower height adjuster knob 532701037

Why it matters

Craftsman walk-behind mowers can look similar across model families, but small differences in deck hardware, handle brackets, and blade adapters affect fit and safety. Using the model 917388820 diagrams helps you order the exact replacement part the first time.

Last updated: February 2026

For the Craftsman 917388820 walk-behind mower, use fresh, clean, regular unleaded gasoline with a minimum of 87 octane. Using 89 octane is fine, but it typically does not improve performance in this type of small 4-cycle engine when the manual calls for 87 minimum (regular).

What we recommend for fuel

• Use regular unleaded gasoline (87 octane minimum).
• Buy only what you can use in about 30 days so the fuel stays fresh.
• Do not mix oil with gasoline (this mower uses a 4-cycle engine).
• Fill the tank to the bottom of the filler neck; do not overfill.
• Wipe up any spilled fuel before starting.

For the exact fueling and safety notes for this model, follow the steps in the owner's manual.

87 vs 89: what changes and what does not

In most walk-behind mowers like this Craftsman model, octane is mainly about preventing knock in higher-compression engines.

Fuel choice	Works in this mower?	When to use it
87 octane (regular)	Yes (recommended)	Normal mowing and everyday use
89 octane (mid-grade)	Yes	If it is the only fresh fuel available

Fuel freshness and storage tips (prevents hard starting)

Old fuel is a top cause of “won’t start” complaints. If the mower will sit for 30 days or longer:

• Run the engine until the fuel system is empty (tank, lines, carburetor).
• Do not store gasoline from one season to the next.
• Use a clean, non-rusting gas can to avoid dirt and rust getting into the fuel.

If you are dealing with starting issues, our how to keep lawn mower gas from going bad guide pairs well with the manual’s storage steps.

Why it matters

Using the correct octane and keeping fuel fresh helps protect the carburetor and fuel system, reduces varnish buildup, and makes your Craftsman 917388820 easier to start and run smoothly.

Last updated: February 2026