Craftsman 917388151 rotary lawn mower Parts

A zero-turn mower is a riding mower with two independent drive controls, so its parts list includes a cutting deck plus a dedicated steering and drive system. Your Craftsman model 917388151 is a walk-behind rotary mower; use the 917388151 owner's manual for the exact parts and safety controls on your machine.

Main parts on a typical zero-turn mower

• Engine and fuel system (air filter, carburetor, fuel lines, muffler)
• Ignition and charging (spark plug, starter, battery, wiring)
• Cutting deck assembly (deck shell, blades, spindles, idler pulleys, deck belt)
• Drive system (hydrostatic transmissions or pumps, wheel motors, drive belt, pulleys)
• Steering and controls (lap bars, linkages, control cables, operator presence switches)
• Chassis and running gear (frame, caster wheels, drive tires, bearings, bushings)

How that differs from Craftsman 917388151 (walk-behind)

A walk-behind mower like 917388151 does not use lap bars, caster wheels, or hydrostatic wheel motors. It centers on handle controls, operator presence control, wheels, and a single blade under the deck.

System	Zero-turn mower	Craftsman 917388151 walk-behind
Steering	Dual lap bars	Handle and control bar
Drive	Hydro drive components at rear wheels	Push or self-propel components (varies by configuration)
Cutting	Multi-blade deck with spindles and belt	Single blade with blade adapter

Parts on this model page that match common mower wear items

These parts are commonly replaced on walk-behind mowers and are listed for model 917388151:

• Lawn mower mulching blade 532406713
• Lawn mower blade adapter 581547901
• Control cable 532168552

Why it matters

Zero-turn and walk-behind mowers share basics like engines and blades, but the drive and steering systems are completely different. Matching the mower type to the parts diagram prevents ordering the wrong belt, blade, or control hardware.

Last updated: February 2026

For your Craftsman rotary lawn mower model 917388151, use a high-quality detergent engine oil with API service classification SF, SG, or SH, and choose the SAE viscosity based on your expected outdoor temperature. Fill only to the FULL line on the dipstick and check the level before each use (see the owner's manual).

Oil type and viscosity (what to buy)

Use detergent oil rated SF/SG/SH; then pick viscosity by temperature:

• SAE 30: best for warmer mowing conditions
• 10W-30: helps with easier starting in cooler weather (check oil level more often)
• 5W-30: for cold-weather starting (check oil level more often)

Quick guide

Outdoor temperature	Common viscosity choice	What to watch for
Above about 32°F	SAE 30	Stable oil use in warm temps
Around or below 32°F	10W-30 or 5W-30	Multi-viscosity oils can use more oil; check level often

How much oil and how to fill

Most walk-behind mower engines in this class take about 20 oz of oil. For model 917388151, we recommend:

• Park the mower level and clean around the oil fill
• Add oil slowly and do not overfill
• Tighten the cap/dipstick to get an accurate reading
• Fill to the FULL mark on the dipstick

Oil change interval (maintenance schedule)

Change engine oil:

• Every 25 hours of operation, or
• At least once per season/year (even if you do not reach 25 hours)
• More often if you mow in dusty or dirty conditions

Why it matters

Correct oil type and viscosity keeps the engine properly lubricated, reduces wear, and helps prevent damage from running low on oil (especially when using multi-viscosity oils in warmer temperatures).

Last updated: February 2026

The Craftsman rotary lawn mower model 917388151 uses a 22-inch cutting deck (cutting width). The cover page of the owner's manual lists this mower as a 22-inch rotary lawn mower.

How we identify the deck size

For walk-behind rotary mowers, “deck size” typically means the cutting width the blade covers in one pass. For model 917388151, you can confirm it using:

• The manual cover and product description (lists 22 in.).
• The blade size used on the mower (a 22-inch deck commonly uses a 22-inch blade).
• The model decal on the mower housing.
• The parts list for the cutting system.

Parts that fit the 22-inch cutting system on this model

These are model-listed parts commonly serviced when you work on the deck and blade area:

• Lawn mower mulching blade 532406713
• Lawn mower blade adapter 581547901
• Washer blade 532401630
• Lock nut 532409149

Quick reference

Spec	Craftsman 917388151
Cutting deck size (cutting width)	22 inches
Mower type	Rotary walk-behind mower
Blade bolt torque	35 to 40 ft. lbs.

Why it matters

Using the correct 22-inch blade and matching hardware helps prevent vibration, uneven cutting, and damage to the blade adapter and mower housing.

Last updated: February 2026