Craftsman 917376721 lawn mower Parts

The most common problems we see on the Craftsman 917376721 walk-behind mower are drive system wear (self-propel issues), cutting quality problems (blade or deck issues), and control/cable problems. Most fixes start with a quick inspection of the blade, wheels, and cables using the exploded views in the 917376721 owner's manual.

Common symptoms and what usually causes them

• Mower will not self-propel or pulls weakly: worn drive components (pawls/gears), loose or stretched drive cable, or a damaged drive pulley.
• Poor cut quality (ragged grass, uneven cut): dull/bent blade, incorrect cutting height setting, or debris buildup under the deck.
• Rear discharge door or bagging issues: rear door not closing, worn hinge points, or a weak/broken torsion spring.
• Handle/control problems: loose handle hardware, misadjusted control cable routing, or damaged clamps.
• Wheel wobble or poor tracking: worn wheel/tire, missing dust cover, or loose fasteners.

Quick checks we recommend first (10 minutes)

1. Shut the engine off, disconnect the spark plug wire, and tip the mower safely (air filter and carburetor side up).
2. Check the blade for damage and tightness; replace if bent or badly worn.
3. Spin the rear wheels by hand; if one slips or clicks, inspect the drive engagement parts.
4. Inspect cables for kinks, fraying, or slack; confirm clamps are holding the cable housing firmly.
5. Look under the deck for packed grass that can reduce lift and cut quality.

Parts that commonly solve these issues (when worn)

Symptom	Likely wear item	Example part for this model
Weak/no self-propel	Drive pulley or drive engagement parts	Lawn mower drive pulley 532443262, drive pawl 532404845
Uneven/ragged cut	Blade	Lawn mower mulching blade 532406707
Bagging/rear door won’t close	Spring/door components	Lawn mower deflector shield torsion spring 532193000, rear door 532401813
Wheel wobble	Wheel/tire or dust cover	Lawn mower wheel and tire, 8 x 1.75-in 583719501, lawn mower wheel dust cover 581840401
Drive won’t engage consistently	Drive control cable	Lawn mower drive control cable 583261801

Why it matters

A worn blade or slipping drive system makes the mower work harder, reduces cut quality, and can accelerate wear on wheels, cables, and transmission parts. Catching looseness and wear early typically prevents bigger repairs.

Last updated: March 2026

Many Craftsman mowers labeled “6.75” are identified by the full model number printed on the mower’s ID tag, not by the horsepower label. For the Craftsman walk-behind mower covered by this page, the model number is 917.376721 (a 650 Series Briggs & Stratton engine, 22-inch multi-cut). See the 917376721 owner's manual to confirm the exact model and spec label locations.

Where to find the model number on the mower

We recommend checking these common spots on Craftsman walk-behind mowers:

• Rear of the deck near the discharge opening
• Top of the deck near the engine mounting area
• Between the rear wheels on the deck housing
• On the handle bracket area (near the height or control labels)
• In the owner’s manual parts list and diagrams

“6.75” vs. model number: what it means

“6.75” is typically an engine power marking used for marketing and identification; it is not the mower’s model number. The model number is what you need to match the correct parts (blade, drive belt, wheels, cables).

Label you see	What it identifies	What to use for parts
6.75 / 6.75 HP	Engine power family/marking	Use the mower model number (example: 917.376721)
650 Series	Engine series family	Use mower model number plus engine model/type if needed
917.xxxxxx	Craftsman mower model number	Best match for diagrams and parts

Why it matters

Using the correct model number prevents ordering the wrong wear parts, especially on self-propelled systems where the drive components vary by build.

If you are replacing common wear items on model 917.376721, match parts by diagram callout first; for example the lawn mower mulching blade 532406707 is a model-specific blade option listed for this mower.

Last updated: January 2026

On your Craftsman walk-behind mower, the model number is on the mower’s ID label and in the documentation; for this unit it’s 917.376721 (often written without the dot as 917376721). The fastest confirmation is the cover page of the 917376721 owner's manual.

Where to look on the mower

Check these common locations first (wipe off grass and dirt so the label is readable):

• Rear of the mower deck near the discharge opening or rear door area
• Top of the deck near the engine mounting area
• Handle support/bracket area near the lower handle mounts
• Under the rear flap or near the grass bag frame mounting points

Model number vs. engine numbers (important difference)

Many owners find an engine model and assume it’s the mower model. They are different identifiers.

What you found	What it identifies	When you use it
Mower model number (example: 917.376721)	The complete Craftsman mower	Ordering deck, drive, handle, wheel, and bag parts
Engine model/type/code (Briggs & Stratton)	The engine only	Ordering engine-specific parts like carburetor or ignition items

Why it matters

Using the correct mower model number helps us match the right walk-behind mower parts and diagrams for your exact deck and drive system. For example, the parts list for model 917.376721 includes items like the lawn mower engine control cable 532183567 and the lawn mower mulching blade 532406707, which can vary by model.

Quick tips for reading the label

• Write the model number exactly as shown (including dots or dashes if present)
• Also record the product number and serial number if listed
• If the label is worn, confirm the model on the 917376721 owner's manual

Last updated: January 2026