Craftsman 917370542 lawn mower Parts

For the Craftsman 917370542 gas walk-behind mower, we use regular unleaded gasoline (87 octane) for normal operation; higher octane like 89 does not improve performance in typical small-engine mowing. For best starting and fewer fuel problems, use fresh fuel and store it correctly (see the owner's manual).

• Use fresh, clean, regular unleaded 87 octane.
• Avoid stale fuel (old gas is a common no-start cause).
• Keep the gas can clean; replace it if it starts to rust.
• Do not store gasoline from one season to the next.
• Let the engine cool before storing the mower indoors.

Old or contaminated fuel is one of the most common reasons a mower will not start. If your mower has been sitting, address fuel first.

• Drain and replace fuel if it smells sour or looks dark.
• If you suspect water in fuel, empty the tank and refill with fresh gas.
• Check the air filter and spark plug if fresh fuel does not help.

Using the right fuel helps the engine start easier, run smoother, and reduces carburetor and fuel-system problems. The manual’s troubleshooting section also lists stale fuel and water in fuel as common causes of a no-start condition.

Last updated: February 2026

A 42-inch mower only fits through a gate if the gate opening is wider than 42 inches (we recommend at least 1 to 2 inches of extra clearance). Your Craftsman 917370542 is a walk-behind mower with a 21-inch blade, so it typically fits through most 36-inch gates; confirm by measuring the widest point.

Measure the mower at its widest point with the handle in your normal moving position.

• Measure outside-to-outside across the rear wheels (often the widest point)
• Check for anything that sticks out: discharge chute, height adjusters, bagger frame
• Measure with the grass catcher installed if you plan to roll it through that way
• Measure the gate opening at the narrowest point (between posts, latch hardware, or stops)
• Allow extra clearance for uneven ground and turning angle

For diagrams and model-specific component locations, use the 917370542 owner's manual.

If your measurement is within about 1 inch of the gate opening, small changes can make the difference.

• Fold or lower the handle to reduce snag points (if your setup allows)
• Remove the grass catcher temporarily
• Turn the mower slightly and “walk” it through one wheel at a time
• Raise the cutting height so the deck does not catch on thresholds
• If a wheel or height adjuster is damaged and sticking out, inspect the lawn mower height adjuster knob 532701037

Trying to force a mower through a tight gate can bend the handle, damage the height adjusters, or crack the deck edge. Measuring the widest point first prevents unnecessary repairs and frustration.

Last updated: February 2026

For Craftsman walk-behind mower model 917370542, the serial number is on a decal on the rear of the mower housing; once you have it, you can often decode the build date from the serial format or confirm the date using the purchase date you recorded in the owner's manual.

We see the serial number location called out for this model.

• Look on the rear of the lawn mower housing for the model/serial decal.
• Write down the serial number exactly as shown.
• Also note the date of purchase (the manual provides a spot to record it).
• If the decal is dirty, wipe it clean so every digit is readable.

Craftsman serial formats can vary by production run, but these patterns are common on walk-behind mowers and small engines.

• Calendar date style: digits may represent month, day, and year.
• Year and week style: digits may represent year and production week.
• Engine vs. mower: the engine can have its own date code that differs from the mower’s serial.

Knowing the approximate age helps us match the right walk-behind mower parts (blade, drive components, hardware) and avoid ordering a look-alike part that fits a different production run.

If you are troubleshooting drive or cutting issues while you are identifying the mower, these model-matched parts are commonly involved:

• Lawn mower blade 532406712 (bent or dull blade can cause poor cut)
• Lawn mower ground drive belt 580364604 (worn belt can cause weak or no self-propel)
• Return spring 532406558 (control linkage return issues)

Last updated: February 2026

A 54-inch zero-turn mower weighs about 550 to 1,000+ lb depending on whether it is residential or commercial grade. Your Craftsman 917370542 is a walk-behind mower (not a zero-turn); use the 917370542 owner's manual for your mower’s exact specifications.

These are ready-to-mow weights for common 54-inch zero-turn designs:

• Residential: 550 to 700 lb
• Prosumer: 650 to 850 lb
• Commercial: 750 to 1,000+ lb
• Add-ons (bagger, hitch, weights): often adds 25 to 150 lb

• Deck construction (stamped vs fabricated)
• Frame and front caster size
• Hydrostatic drive size and transaxles
• Engine size and fuel capacity
• Accessories (bagger, mulch kit, suspension seat)

Weight affects trailer payload, ramp rating, tie-down requirements, and turf compaction. It also helps you estimate whether you can safely load and unload the mower on your own.

• Use the mower’s listed operating weight (not just shipping weight)
• Add fuel and accessories to estimate real-world loaded weight
• Choose ramps rated above the loaded weight
• Confirm trailer payload and vehicle towing limits

Last updated: February 2026