Craftsman CMXGMAM7435274 gas lawn mower Parts

For a Craftsman CMXGMAM7435274 gas lawn mower, the serial number can often be decoded to estimate the build date, but the exact format varies by the engine and deck manufacturer. We use the serial tag details (and sometimes the engine model/type/code) to identify the month and year it was made.

Where to find the serial number (and what else to write down)

Look for a sticker or stamped tag on the mower deck, rear housing, or handle support. If the mower has a Briggs & Stratton engine, also record the engine identification numbers.

• Mower model number: CMXGMAM7435274
• Mower serial number (copy it exactly)
• Engine brand (often Briggs & Stratton)
• Engine model/type/code (if shown)
• Any date code printed near the serial

How serial number date codes are commonly formatted

Many outdoor power products use a date code embedded in the serial, but the position and order differ.

Common pattern	What it usually means	Example interpretation
MMDDYY	Month, day, year	031524 = March 15, 2024
YYMMDD	Year, month, day	240315 = March 15, 2024
YYWW	Year and production week	2412 = week 12 of 2024
YYYYMM	Year and month	202403 = March 2024

Quick checks that usually confirm you decoded it correctly

• The “year” should be realistic for the product (not 1999 on a newer mower)
• The “month” should be 01 through 12
• If you see a “week” number, it should be 01 through 52
• The tag may list a separate “DOM” (date of manufacture) that overrides guessing

Why it matters

Knowing the build date helps us match the correct walk-behind mower parts (like a blade, belt, wheel, or control cable) because manufacturers sometimes change deck and drive components mid-production.

Related part that’s commonly replaced during tune-ups

If you are doing maintenance while you identify the mower, a clogged air filter is a top cause of hard starting and poor power. Use the exact part listed for this model: air filter 593260.

Last updated: January 2026

Gas walk-behind mowers like the Craftsman CMXGMAM7435274 are not being phased out everywhere at once, but the market is shifting toward battery-electric models. Some states and local areas are restricting sales of new gas-powered outdoor equipment, so availability will vary by where you live.

What’s changing (and what isn’t)

• Local rules drive the change: restrictions are typically state or city based, not nationwide.
• Sales restrictions target new equipment: existing gas mowers can still be used and maintained.
• Retailer selection is shifting: many stores are expanding electric options due to demand.
• Gas support remains strong: parts, fuel-system service, and engine maintenance are still common.
• Commercial and heavy-duty use: gas often remains preferred where runtime and quick refueling matter.

What this means for maintaining a CMXGMAM7435274

Even if new gas mower sales decline in your area, keeping your mower reliable comes down to routine maintenance and replacing wear parts on schedule.

Common maintenance items to keep on hand:

• Air filter (helps prevent hard starting and power loss)
• Fresh fuel and a clean fuel cap seal
• Sharp blade and clean deck
• Drive belt and control cables (for self-propelled performance)

Quick comparison: gas vs battery for typical homeowners

Feature	Gas walk-behind mower	Battery walk-behind mower
Maintenance	Higher (oil, filter, fuel care)	Lower (battery care)
Noise	Louder	Quieter
Runtime	As long as you have fuel	Limited by battery capacity
Storage	Fuel stabilization needed	Battery storage practices needed

Why it matters

If your area tightens rules on new gas equipment, the biggest impact is future purchasing choices, not your ability to keep a current mower running. Staying ahead on basics like filtration and fuel sealing helps prevent no-start issues and extends engine life.

For routine upkeep on this model, we recommend starting with the air filter 593260 and inspecting it regularly during mowing season.

Last updated: January 2026

Common problems we see on the Craftsman CMXGMAM7435274 gas lawn mower are hard starting or stalling, poor cutting or clumping, weak self-propel drive, and fuel leaks or fuel smell. Most issues trace back to basic maintenance items (air filter, blade condition, belt wear) or fuel system problems.

Most common symptoms and what usually causes them

• Won’t start / starts then dies: stale fuel, clogged air filter, dirty carburetor, fouled spark plug
• Runs rough / surges: restricted airflow, partially clogged carburetor jets, water in fuel
• Cuts uneven or leaves strips: dull or bent blade, deck packed with wet grass, incorrect cutting height
• Weak or no self-propel: stretched or slipping drive belt, cable out of adjustment, worn wheels
• Fuel leak or strong fuel odor: loose or damaged fuel cap, cracked fuel line (if equipped)

Parts that commonly fix these problems

If you are troubleshooting this model, these are high-frequency replacement parts:

Symptom	Part to check first	What to look for
Hard starting, black smoke, loss of power	Air filter 593260	Dirty, oil-soaked, torn media
Fuel smell, seepage around tank	Fuel cap 84004416	Damaged seal, cross-threading, cap won’t tighten
Poor cut quality, clumping	Blade (inspect/replace)	Dull edge, bends, heavy nicks

Quick checks we recommend before buying parts

• Drain old fuel and refill with fresh gasoline (use fuel stabilizer if stored).
• Inspect and replace the air filter if it is dark, oily, or restricted.
• Clean grass buildup from the underside of the deck (disconnect spark plug wire first).
• Check the blade for damage and tighten the blade hardware to spec.
• If self-propel is weak, inspect the belt and confirm the drive control cable moves freely.

Why it matters

A walk-behind mower like the CMXGMAM7435274 depends on clean airflow, sharp cutting edges, and proper belt and cable operation. Staying ahead on these basics prevents hard starting, protects the engine, and improves cut quality.

Last updated: January 2026