7 Best Snow Blower Parts For Winter Maintenance

The first heavy frost of the season often serves as a jarring wake-up call for those managing a homestead. While the tractor is tucked away for winter, the snow blower becomes the most critical piece of equipment on the property for maintaining access to barns and pastures. Preparing this machine now prevents the frustration of being sidelined during a blizzard when livestock still need to be fed.

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Arnold Universal Shear Pin Kit: Must-Have Spares

Shear pins act as the mechanical fuse for a snow blower, designed to snap if the auger hits a hidden rock or piece of frozen debris. When a pin fails, the auger stops spinning to prevent catastrophic damage to the gearbox or engine. Keeping a handful of spares taped directly to the machine housing ensures that a minor hit doesn’t turn into an afternoon-long repair session.

Universal kits like those from Arnold are invaluable because they provide a variety of sizes and materials to suit different models. Since these are inexpensive, there is no reason to avoid stocking up on multiple sets before the first storm hits. If the machine frequently encounters gravel driveways or uneven terrain, having an extra packet in the barn is a non-negotiable insurance policy.

Do not be tempted to replace a snapped shear pin with a high-strength bolt. Using a standard steel bolt instead of a shear pin removes the machine’s safety mechanism, often leading to a shattered gearbox that costs hundreds of dollars to repair. Always keep the correct, breakable pins on hand to ensure the machine remains protected.

NGK BPR6ES Spark Plug: For Reliable Engine Starts

An engine that refuses to fire when the temperature drops is the most common cause of winter frustration. The spark plug is the heart of the ignition system, and a worn plug will struggle to ignite the fuel-air mixture in the cold, damp air of an early morning snowstorm. Replacing this part annually is the simplest way to guarantee a smooth start every time.

The NGK BPR6ES is widely considered the gold standard for small engines, offering superior heat range performance and long-term reliability. Its construction is built to withstand the high-vibration environment of a snow blower without fouling prematurely. For the time-poor farmer, the modest cost of this plug is a small price to pay for the assurance that the machine will start on the first pull.

If the engine has been running roughly or surging under load, the spark plug is the first place to look. A fouled or corroded electrode will choke the machine’s power just when it is needed to move heavy, wet snow. Swap the old plug for a fresh NGK, and the engine will reliably idle and power through deeper drifts.

MTD Genuine Factory V-Belt Set: OEM Performance

The V-belt is the muscle that transfers power from the engine to the auger and drive system. Over time, these belts stretch, glaze, and lose the grip necessary to move heavy snow. When a belt slips, the blower loses effectiveness, leaving trails of snow behind rather than clearing a clean path down to the gravel.

Always choose Original Equipment Manufacturer (OEM) belts when performing this repair. Aftermarket belts may look identical, but they often lack the precise dimensions and material density required for the specific pulley tension of an MTD machine. Genuine parts offer better durability and ensure the belt doesn’t jump off the track when the load becomes heavy.

Expect to replace the drive belt every few seasons, especially if the machine is used for clearing long paths or managing deep drifts. If the belt starts squealing or burning during operation, it is nearing the end of its life. Staying ahead of this maintenance ensures the machine maintains its clearing speed even in the harshest conditions.

ArmorSkids Heavy-Duty Skid Shoes: Max Protection

Skid shoes are the adjustable plates on the sides of the blower housing that determine how close the auger scrapes to the ground. Factory-installed metal skids are prone to wearing thin and can even leave rust streaks or gouges on expensive driveway surfaces. Investing in heavy-duty aftermarket skid shoes, such as ArmorSkids, provides better durability and performance.

These heavy-duty skids are typically designed with a wider surface area, which allows the machine to glide over cracks and frozen ruts rather than digging into them. This is especially helpful on uneven gravel surfaces where the blower might otherwise ingest loose rocks. The added height adjustability allows for a “float” that protects both the surface and the equipment.

For those managing stone driveways, upgrading to non-marring, heavy-duty shoes is highly recommended. While the initial investment is higher than standard steel replacements, they effectively pay for themselves by reducing stone pickup and protecting decorative pavement. This is a clear-cut upgrade for any farmer looking to preserve driveway infrastructure.

STA-BIL Fuel Stabilizer: Prevent Stale Gas Issues

Modern ethanol-blended gasoline begins to degrade after only a few weeks, attracting moisture that can corrode internal fuel lines and clog carburetors. When a snow blower sits idle for the warmer months, this process turns fuel into a gummy, varnish-like sludge. Adding a high-quality stabilizer like STA-BIL at the end of every season is essential for long-term engine health.

Always treat gasoline before it enters the fuel tank to ensure the entire system—including the fuel filter and carburetor jets—stays clean. This additive works by preventing oxidation and moisture separation, keeping the fuel fresh and ready to combust instantly once winter returns. It is the most effective way to avoid the dreaded “no-start” scenario caused by a gummed-up carburetor.

For the hobby farmer, fuel management is often an afterthought compared to crop maintenance, but it is critical for winter utility. Dedicate a specific gas can for the snow blower and treat it immediately upon filling at the pump. This simple habit eliminates the need for expensive carburetor cleaning kits or professional shop visits during the coldest months of the year.

Ariens OEM Scraper Bar: Restore Clearing Power

The scraper bar is the blade at the base of the intake housing that peels the snow off the ground and feeds it into the auger. Over years of hitting driveway edges, concrete lips, and hidden roots, this bar inevitably wears down or becomes uneven. A worn scraper bar significantly reduces the cleaning efficiency of the machine, forcing the operator to make multiple passes.

Installing a new OEM scraper bar restores the machine’s ability to clean right down to the pavement or soil level. It is a straightforward bolt-on task that provides an immediate, noticeable difference in snow-clearing quality. When ordering, always match the bar to the specific machine model to ensure the bolt hole alignment is perfect.

If the blower is leaving an excessive amount of snow behind, inspect the scraper bar for deep grooves or bowing. A straight, sharp bar is the secret to clearing a driveway in a single pass. For those with long walkways to clear, this inexpensive maintenance step is a massive time-saver.

MTD Primer Bulb Assembly Kit: Fix Hard Starting

The primer bulb is a small but vital component that manually forces a small amount of fuel into the carburetor to prime the engine for a cold start. Because these bulbs are made of rubber, they eventually harden, crack, or tear due to extreme temperature fluctuations. When the bulb leaks, it loses the ability to create the necessary vacuum, making the engine impossible to start without excessive effort.

An MTD primer bulb assembly kit is an inexpensive and easy repair that restores the starting functionality of the engine. Replacing a cracked bulb should be part of the annual pre-season check. If the bulb feels brittle or fails to bounce back when pressed, it should be swapped immediately.

This part is highly specific to the engine model, so verify the part number before purchasing. A failing primer bulb is a common culprit for a machine that runs well once started but refuses to fire in the first place. Taking the time to replace this ensures that even on the coldest mornings, the machine is ready to work.

How to Find Parts for Your Specific Machine

Never attempt to buy parts based on a general description, as small variances in manufacturing years can lead to incompatibility. Every piece of outdoor power equipment features a model and serial number tag, usually located on the frame, under the control panel, or near the engine block. Note these numbers down before searching for parts online.

Utilize the manufacturer’s official website or a reputable parts diagram database to view exploded-view schematics of the snow blower. These diagrams show exactly how every nut, bolt, and belt fits together, which is crucial for identifying the correct part number. Relying on these visual guides removes the guesswork from the purchasing process.

If a machine is older and no longer supported by the manufacturer, look for cross-reference databases that match universal parts to obsolete factory components. Many aftermarket companies specialize in manufacturing high-quality replacements for discontinued equipment. Always search by the specific engine manufacturer—such as Briggs & Stratton or Tecumseh—rather than just the snow blower brand if the engine part is the focus.

Step-by-Step Pre-Season Maintenance Guide

Winter maintenance should follow a logical sequence to ensure no component is overlooked. Start by draining the old fuel and replacing it with fresh, treated gas. Check the oil level, and if it appears dark or gritty, change it to ensure the engine runs cool and lubricated under heavy load.

Next, inspect all cables, belts, and pulleys for signs of fraying or wear. Lubricate all pivot points, including the chute rotation mechanism, gear shift, and auger engagement lever, with a cold-weather-rated grease. A machine that moves stiffly is a machine that will eventually break; a smooth-operating machine lasts for decades.

Finally, check tire pressure and ensure the skid shoes are adjusted to the correct height for the surface. If the tires are pneumatic, they should be inflated to the manufacturer’s specification to maintain traction on icy inclines. Tighten all bolts and fasteners, as the vibration of the engine often shakes them loose over a full season of heavy use.

Safety Checks Before The First Snowfall

Safety is the final but most important phase of maintenance. Ensure that the dead-man’s handle—the safety device that shuts the engine down when released—is functioning perfectly. Test the emergency shut-off switches to guarantee the engine kills power immediately when the operator steps away.

Check that the discharge chute is free of obstructions and that the deflector moves freely and locks into place. During operation, never use bare hands to clear a clogged chute; keep a plastic clean-out tool mounted securely on the handle of the machine at all times. This habit prevents accidental contact with the high-speed auger during a clog.

Finally, inspect the headlights if the machine is equipped with them to ensure visibility during early-morning or late-evening work. If the machine lacks lights, consider mounting a small, battery-operated LED work light to the handle. Operating safely means having a clear view of the ground and ensuring the machine’s safety systems are ready to react faster than any operator could.

Maintaining a snow blower is an investment in the functionality and accessibility of the farm during the winter months. By following a structured maintenance plan and keeping high-quality parts on hand, the challenges of heavy snow become a manageable task rather than a crisis. Success in the winter starts long before the first flakes fall.