Craftsman 247886400 gas snow thrower Parts

The most common problem we see on the Craftsman 247886400 gas snow thrower is a clogged discharge chute or auger housing that stops snow from throwing properly. Close behind are shear pins that break after an ice jam or hidden object, which makes the auger stop turning.

Quick checks that fix the most issues

• Shut the engine off and wait for all moving parts to stop before checking anything.
• Clear the discharge chute using a clean-out tool (never your hand).
• Inspect the auger area for a lodged object (ice chunk, rock, newspaper).
• Check whether the auger is turning; if not, inspect shear pins and clips.
• Confirm the auger control cable is engaging and adjusted correctly.
• If the auger belt is loose or damaged, plan on replacing it.

Clogged chute vs. broken shear pin: how to tell

Symptom	Most likely cause	What to do first
Engine runs but no snow discharges	Chute assembly clogged	Shut off engine; clear chute with a tool
One auger turns, the other does not	Shear pin sheared on one side	Replace the sheared pin and clip
Auger does not turn and belt squeals	Auger belt loose/damaged	Inspect belt and tension; replace if worn
Chute will not rotate smoothly	Chute assembled incorrectly	Recheck chute control assembly steps

Shear pins are a top “no-throw” cause

If an auger blade hits a foreign object or an ice jam, the shear pin is designed to break to protect the gearbox. For this model, use the correct OEM shear pin type listed in the 247886400 owner’s manual. If you need the common replacement shear pin used on many 2-stage setups, we stock shear pin 738-04124A.

Why it matters

A clog or a sheared pin can look like a major failure, but it is usually a fast, low-cost fix. Clearing the chute safely and using the correct shear pins helps prevent damage to the auger gearbox, belts, and drive system.

Last updated: January 2026

For a Craftsman gas snow thrower model 247886400, the most reliable way to tell the year is to use the engine manufacture date code (on the engine shroud, valve cover, or blower housing) and decode it to a calendar date; that date tells you when the engine was built and closely tracks the snowblower’s build timeframe. For model-specific label locations and identification details, use the 247886400 owner’s manual.

Where to look for the date information

Check these common spots on a gas snow thrower:

• Engine ID label on the engine shroud or recoil starter housing
• Stamped code on the valve cover or blower housing
• Snowblower product tag on the frame (often near the axle area or rear housing)
• Control panel area near the handle support

How to decode the engine code (typical format)

Many small engines use a numeric date code where the first two digits are the year.

Example: 99011556

• 99 = year (1999)
• 01 = month (January)
• 15 = day of month (15th)
• Remaining digits often identify the production line or sequence

Quick decode table (example)

Code segment	Meaning	Example value
First 2 digits	Year	99 = 1999
Next 2 digits	Month	01 = January
Next 2 digits	Day	15 = 15th

If the engine code is missing or unreadable

Use these practical options to narrow it down:

• Compare your unit’s controls and features to the diagrams and descriptions in the 247886400 owner’s manual
• Match key wear parts (like shear pins and cables) to confirm you are working from the correct parts list
• If your auger engagement feels off, verify cable slack and stopping behavior (the manual describes checking that the auger fully stops when you release the control)

Why it matters

Knowing the build year helps you order the correct Craftsman and MTD-style replacement parts (shear pins, drive cable, auger clutch cable) and prevents mismatches when a manual covers multiple similar models.

Last updated: January 2026

Yes; on a Craftsman 247886400 gas snow thrower, a light spray on snow-contact metal surfaces can help reduce snow sticking and chute clogging, but keep spray off drive components and any area the manual calls out for grease or oil. For storage, a light film of oil on rust-prone areas works well.

Where spraying helps (and where it does not)

Use a light, even coat on clean, dry metal surfaces that touch snow.

• Inside the discharge chute (to help snow slide)
• Auger housing interior surfaces (to reduce buildup)
• Auger shaft area after shear pins are removed (seasonal lubrication step)
• Exterior metal spots prone to surface rust (storage protection)
• Avoid belts, friction wheel, and drive plate areas (spray can cause slipping)

What the manual recommends for lubrication and rust prevention

Our guidance follows the lubrication and storage steps in the 247886400 owner’s manual.

Task	What to use	How often
Hex (gear) shaft lubrication	Light coating of anti-seize	At least once a season or every 25 hours
Axles	Multipurpose automotive grease	At least once a season
Chute directional control bushing/spiral	3-in-1 oil	Once a season
Rust prevention for storage	Light oil or silicone coating	Before storage

Important caution for drive performance

The manual specifically warns to keep oil off the aluminum drive plate and rubber friction wheel because it can hinder the drive system. If you accidentally overspray, wipe the area clean immediately and let it dry before operating.

Why it matters

A slick chute and properly lubricated shafts help prevent clogs and reduce wear, while keeping lubricants off traction and drive surfaces helps your snowblower maintain consistent forward and reverse drive.

Last updated: January 2026

For the Craftsman gas snow thrower model 247886400, the operator guidance defines an “average useful life” of 7 years or 60 hours of operation; after that point, the machine should be inspected annually to confirm mechanical and safety systems are working properly. See the 247886400 owner's manual.

Life expectancy for model 247886400

The 7-year or 60-hour figure is a service-life guideline tied to inspection and safety, not a guaranteed end-of-life date.

• Track operating hours if your unit has an hour meter; otherwise, estimate by storm time.
• Schedule an annual inspection once you reach 7 years or about 60 hours.
• Replace worn wear-items early to prevent breakdowns mid-storm.
• Follow off-season storage steps to reduce fuel-system and carburetor problems.
• Check fuel lines, tank, cap, and fittings for cracks or leaks.

Typical ownership lifespan vs. the manual’s guideline

Many snowblowers run longer than the “average useful life” with routine maintenance, but the inspection milestone is what keeps operation safe and reliable.

Measure	What it represents	What we recommend
7 years	Age-based wear guideline	Annual inspection after year 7
60 hours	Use-based wear guideline	Inspect sooner if you reach 60 hours quickly
10 to 15 years	Common real-world lifespan with good care	Expect periodic part replacement and tune-ups

Parts that most often limit performance over time

Wear parts usually make a snowblower feel “worn out” before the engine is truly done.

• Shear pins after impacts or jams (example: snowblower shear pin 738-04124A)
• Drive system wear (friction wheel, linkage adjustments)
• Control cables that stretch, fray, or freeze (example: snowblower drive cable 946-05067)
• Scraper/shave plate wear from pavement contact

Why it matters

Using the 7-year or 60-hour inspection guideline helps prevent sudden failures and keeps key safety controls (auger/impeller disengagement, drive control, fuel system integrity) operating as designed.

Last updated: January 2026