Craftsman CMXGAAH46BT gas blower Parts

The best gas leaf blower for the money is the one that matches how you use it most often: handheld for quick driveway and patio cleanup, or backpack for long runs and larger yards. For value, we focus on proven reliability, easy starting, and strong airflow (CFM) with solid air speed.

How to choose the best value (what to compare)

• Type: handheld (lighter, cheaper) vs. backpack (more power, less arm fatigue)
• Airflow (CFM): higher moves more leaves at once; best for wet or heavy debris
• Air speed (MPH): higher helps lift stuck leaves from grass and mulch
• Engine size (cc): larger often supports higher output, but can add weight and fuel use
• Weight and balance: comfort matters more than peak specs for most homeowners
• Serviceability: easy access to air filter, spark plug, and fuel lines saves time

Good “value picks” by use case

Use case	Best style	What “good value” looks like	Who it fits
Small yard, quick cleanup	Handheld	Light weight, easy starting, solid mid-range CFM	Most homeowners
Leaves pile up, longer sessions	Backpack	Higher CFM, comfortable harness, steady throttle control	Larger lots
Wet leaves, heavy debris	Backpack or strong handheld	Higher CFM plus higher MPH	Fall cleanup, wooded areas

Where your Craftsman CMXGAAH46BT fits in

If you already own a Craftsman CMXGAAH46BT gas blower, the best “for the money” move is usually keeping it running at peak performance with routine maintenance (fresh fuel mix, clean air filter, good spark plug, and tight fuel lines). For model-specific operating and maintenance details, use the CMXGAAH46BT owner's manual.

Why it matters

“Best for the money” is really about total cost of ownership: a blower that starts easily, runs smoothly, and is simple to maintain saves time and avoids repeat repairs, even if the upfront price is slightly higher.

Parts and support

We list replacement parts by model so you can match components correctly; if you need to search more broadly by model number or category, use Sears PartsDirect.

Last updated: February 2026

For a Craftsman CMXGAAH46BT gas blower, higher CFM is better for moving more leaves across open areas, while higher MPH is better for breaking loose wet, stuck, or heavier debris. The best choice depends on whether you need “volume” (CFM) or “punch” (MPH) for your cleanup.

How to choose: CFM vs. MPH

• Choose higher CFM when you want to move a lot of dry leaves quickly across lawns, driveways, or patios.
• Choose higher MPH when you need to dislodge wet leaves, pine needles in cracks, or debris packed into mulch.
• Balance matters: a blower with strong CFM and solid MPH usually feels more effective than one number alone.
• Nozzle style affects results: a narrower outlet typically increases “push” feel; a wider outlet typically helps move more material.
• Your technique matters: sweeping side-to-side and working with the wind often beats chasing maximum numbers.

Quick comparison

Spec	What it describes	Best for	What you notice in use
CFM (air volume)	How much air moves per minute	Large piles, open areas	Faster “bulk” movement of leaves
MPH (air speed)	How fast the air exits the tube	Wet/stubborn debris, crevices	Stronger “blast” to break debris loose

Why it matters

Matching the spec to the job saves time and reduces strain on the engine. If you buy for the wrong spec, you can end up with a blower that either scatters debris without moving it far (low CFM) or blasts hard but takes longer to clear big areas (low CFM with high MPH).

Tips to get better performance from your CMXGAAH46BT

• Use fresh, properly mixed fuel (for 2-cycle models) and avoid old gas.
• Clean or replace the air filter on schedule.
• Check the spark plug condition and gap.
• Inspect fuel lines and the primer bulb for cracks or softness.
• Follow the starting and warm-up steps in the CMXGAAH46BT owner's manual.

When performance problems look like “low MPH/CFM”

If the blower feels weak, surges, or won’t rev up, the issue is often maintenance-related (fuel delivery, carburetor, air filter). Our DIY symptom and repair content can help you pinpoint the cause: leaf blower running rough and leaf blower won't start. For replacement parts, start with the parts list for CMXGAAH46BT, or search by model on Sears PartsDirect.

Last updated: February 2026

For the Craftsman CMXGAAH46BT gas leaf blower, we use fresh unleaded gasoline mixed with 2-cycle oil at a 50:1 fuel-to-oil ratio (typical for 2-stroke handheld blowers). For the exact fuel and oil requirements for your unit, follow the mixing and fueling instructions in the CMXGAAH46BT owner's manual.

Fuel type and mix ratio (what to use)

Use these basics to protect the engine, carburetor, and fuel lines:

• Gasoline: fresh, clean unleaded gas (avoid stale fuel)
• Oil: 2-cycle (2-stroke) air-cooled engine oil
• Mix ratio: 50:1 (2-cycle oil to gasoline)
• Mixing: always mix in an approved fuel container before filling the tank
• Storage: do not store mixed fuel for long periods; mix only what you will use soon

Quick mix chart (50:1)

Gasoline amount	2-cycle oil needed (50:1)
1 gallon	2.6 fl oz
2 gallons	5.1 fl oz
1 liter	20 ml
5 liters	100 ml

Why it matters

A correct 50:1 mix gives the CMXGAAH46BT the lubrication it needs. Too little oil can score the cylinder and piston; too much oil can increase smoke, carbon buildup, and spark plug fouling.

If it runs rough after fueling

These checks solve most “bad fuel” complaints:

• Drain old fuel and refill with a fresh 50:1 mix
• Inspect the fuel cap and tank vent for blockage
• Check the air filter for heavy dirt or oil saturation
• Inspect fuel lines for cracking or softness
• If it still surges or won’t idle, follow a carburetor service process like how to rebuild a leaf blower carburetor

Getting the right parts

We list model-compatible replacement parts by diagram for the Craftsman CMXGAAH46BT. If you are shopping more broadly by model number, we also support search and ordering through Sears PartsDirect.

Last updated: February 2026