Craftsman 917376630 rotary lawn mower Parts

For the Craftsman rotary lawn mower model 917376630, we recommend using fresh 87-octane (regular) unleaded gasoline for normal operation. Higher octane (like 91) is not required for performance; fuel freshness and proper storage matter far more for easy starting and smooth running (see the 917376630 owner's manual).

What to use (and what to avoid)

• Use 87-octane unleaded from a busy station (fresher fuel).
• Use fresh fuel; stale gas is a common no-start cause.
• Avoid storing gasoline for long periods; rotate your fuel supply.
• Keep the gas can clean and replace it if it starts to rust.
• Do not use fuel that smells sour or looks dark or cloudy.

If you have starting or running problems

Stale fuel, water in fuel, and basic ignition issues are common culprits on walk-behind mowers.

• If the mower will not start after sitting, drain old fuel and refill with fresh gasoline.
• Check the air filter and spark plug condition.
• Make sure the spark plug wire is firmly connected.
• If the blade or blade adapter is loose or damaged, address that before running the mower.

Quick symptom guide

Symptom	Most common fuel-related cause	What to do
Won’t start after storage	Stale fuel	Drain and refill with fresh gas
Starts then dies	Water/contamination	Replace fuel, clean tank/can
Hard starting	Old fuel plus weak ignition	Fresh fuel, check spark plug

Storage and safety notes that affect fuel choice

Fuel issues usually come from storage habits, not octane rating. The manual also warns against storing the mower indoors with gasoline in the tank where fumes could reach an ignition source; let the engine cool before storing.

Why it matters

Using the correct fuel helps prevent hard starting, rough running, and carburetor/fuel-system problems. In practice, fresh 87-octane plus good storage habits beats “premium” fuel that has gone stale.

Last updated: January 2026

The most common issues we see on the Craftsman 917376630 rotary lawn mower are no-start or hard-start problems, poor cut quality, self-propel drive slipping, and discharge or bagging problems. These usually trace to routine wear items (blade, belt, cables, springs) or basic maintenance and adjustments in the owner's manual.

Common symptoms and what to check first

• Won’t start / starts then dies: old fuel, dirty air filter, fouled spark plug, stuck throttle or safety control cable.
• Rough running / surging: carburetor varnish from stale fuel, partially clogged jet, governor linkage binding.
• Poor cut (uneven, ragged, vibration): bent or dull blade, loose blade hardware, damaged blade adapter.
• Self-propel not pulling: worn or stretched drive belt, drive pulley wear, cable out of adjustment.
• Clumping or poor discharge: wet grass, deck buildup, damaged chute door or deflector spring.

Parts that commonly wear on this model

If the symptom matches, these are frequent replacement items for Craftsman walk-behind mowers like model 917376630:

• Lawn mower blade 532406713 for dull edges, vibration, or poor cut
• Lawn mower ground drive belt 532189922 for slipping or no self-propel
• Lawn mower engine control cable 532183567 for throttle or engine control issues
• Lawn mower blade adapter 583134701 if the blade won’t stay tight or the hub is worn
• Lawn mower discharge chute door assembly 532193679 for discharge door damage or poor bagging

Quick diagnosis guide

Symptom	Most likely cause	Best first action
Engine won’t start	Fuel/spark/control issue	Refresh fuel, check spark plug, verify control cable movement
Mower vibrates	Blade or adapter problem	Inspect blade and adapter; tighten to spec
Cuts uneven	Blade dull or height set uneven	Sharpen/replace blade; verify both sides height settings
Self-propel weak	Belt/cable/pulley wear	Inspect belt condition and cable adjustment

Why it matters

Catching wear early prevents bigger failures, like a damaged crankshaft from severe blade vibration or premature transmission wear from a slipping drive belt. Regular blade and belt inspections also improve cut quality and reduce strain on the engine.

Last updated: March 2026

The model number is 917.376630; it’s printed on the mower’s model tag and shown on the cover of the 917376630 owner’s manual. This identifies the exact Craftsman rotary lawn mower version so you can match the correct parts and diagrams.

Where to find the model number on the mower

Look for the model tag in common walk-behind mower locations:

• On the rear deck near the discharge opening
• On the back plate behind the engine
• Near the height adjuster area on the deck
• On a label near the handle mounting brackets

Why the exact model number matters

Craftsman mowers can look similar but use different blades, belts, and drive parts. Using 917.376630 helps ensure you get the right fit for items like the blade, drive belt, and grass bag.

Examples of parts that depend on the model number

Part type	Example for model 917376630	What it affects
Blade	Lawn mower blade 532406713	Cut quality, vibration, deck airflow
Ground drive belt	Lawn mower ground drive belt 532189922	Self-propel speed and traction
Grass bag	Gbag.1251163 532401963	Bagging fit and sealing

Quick check to avoid ordering the wrong parts

Before ordering, we recommend confirming these details:

• Model number reads 917.376630 (including the dot on the tag)
• Deck size is 22-inch (common for this model family)
• Mower is power-propelled (self-propelled drive system)
• Your part matches the diagram callout in the 917376630 owner’s manual

Related note about “M210”

“M210” is often used as a retail or series name for some Craftsman walk-behind mowers, but 917.376630 is the model number used for parts lookup and the illustrated parts list.

Last updated: January 2026