When a snow blower starts skipping augers, losing drive traction, or refusing to stay running, the fix is almost never a new machine — it is a single worn component that has quietly reached the end of its service life. The challenge for owners is that the parts ecosystem around Ariens machines mixes genuine OEM items, cross-brand aftermarket replacements, and generic consumables, each with its own trade-offs in fitment confidence, material quality, and price.
What separates a good replacement part from a mediocre one in this category comes down to three things: whether the part matches your exact model series without modification, whether the material spec holds up under repeated freeze-thaw and load cycles, and whether the price reflects the longevity you should expect. The eight picks below cover the most frequently replaced components across Ariens friction-drive and deluxe snow blower lines, spanning maintenance consumables to mechanical assemblies, ordered from the simplest swap to the most involved repair.
As an Amazon Associate we earn from qualifying purchases at no extra cost to you. Product prices and availability are accurate as of the date shown and are subject to change.
Quick Picks
| Product | Best for | Price |
|---|---|---|
| Ariens Genuine OEM Shear Bolt 52100100 | Protecting the auger gearbox on 5/16th Deluxe models | $9.99 |
| 20001368 Carburetor for Ariens 920402/920021/920025 | Restoring smooth idle and cold-start on multi-fit engines | $25.98 |
| ST824 Carburetor for Ariens ST824/624E/926LE | Budget engine revival on ST824 and related series | $21.98 |
| Ariens Genuine OEM Scraper 04145959 (28″) | Keeping the chute housing free of ice buildup on 28″ models | $44.14 |
| Stens Drive Disc 240-394 | Replacing a worn friction drive disc on Ariens and cross-brand machines | $23.87 |
| Ariens 5W-30 Semi Synthetic Engine Oil | Seasonal oil change on small-engine blowers | $14.49 |
| Quanaoo Traction Cable 06900502 | Restoring auger control on Pro Deluxe and Platinum series | $15.99 |
| OEM Ariens L3 Synthetic Gear Lube 00068800 | Long-life lubrication for auger gearboxes | $19.99 |
How We Picked
We narrowed this list by checking three criteria against published specifications and aggregated owner feedback: first, fitment breadth — how many Ariens model numbers a single part legitimately covers, since cross-compatibility reduces the risk of ordering the wrong item; second, material or formulation grade relative to price, so a consumable like gear lube is judged on synthetic vs. conventional rather than on a subjective feel; and third, replacement frequency data visible in owner forums and service manuals, because a part that fails every two seasons deserves a slot even if the individual cost is small.
The 8 Best Ariens Snow Blower Parts in 2026
Ariens Genuine OEM Shear Bolt 52100100
Shear bolts are sacrificial pins designed to break before a stuck auger damages the gearbox. This OEM part is the correct spec for Ariens 5/16th Deluxe series machines, and because it is a genuine Ariens component, the metallurgy matches the factory-torque rating rather than an approximation. Owners consistently report that generic bolts either fail too early or refuse to shear under overload, both of which lead to expensive secondary damage.
- Pro: Exact factory shear value, no guesswork on protection level.
- Pro: At $9.99 the per-unit cost is trivial compared to gearbox repair.
- Con: Single bolt sold individually; owners needing a spare set must buy multiples.
Skip it only if your model uses a different bolt diameter; verify your manual before ordering.
20001368 Carburetor for Ariens 920402, 920021, 920025, 938032, 920404
This carburetor targets the most common cold-start and rough-idle complaints on Ariens engines in the listed series. The 20001368 designation covers a broad model range, which means fewer compatibility questions for the buyer. Owner feedback highlights improved throttle response within a few pulls of the starter after installation, though some note the float height requires minor adjustment out of the box.
- Pro: Covers five distinct Ariens model numbers in a single SKU.
- Pro: Price sits well below OEM-list alternatives for the same fitment.
- Con: Requires a gasket or filter check during installation for best results.
Pass on this if your issue is a clogged fuel line rather than a metering problem inside the carburetor.
ST824 Carburetor for Ariens ST824, 624E, 926LE, 924050, 932039, ST1032, 920001
The ST824 series represents an older but still widely owned generation of Ariens machines. This carburetor is a direct-fit replacement for seven listed model numbers, making it one of the most versatile engine fixes on the list. At $21.98 it is the second-lowest-priced carburetor here, and owners report successful installations without modifications. The main caveat noted in feedback is that the choke linkage orientation can differ slightly from late-production OEM units.
- Pro: Seven-model fitment reduces ordering errors.
- Pro: Lowest-cost carburetor entry on this list.
- Con: Choke linkage may need a minor positional tweak on some engines.
Not suitable if your ST824 has a different carburetor mounting pattern from the original; cross-reference the flange.
Ariens Genuine OEM Snow Blower Scraper 04145959, 28″
The scraper blade sits inside the discharge housing and scrapes packed ice away from the chute wall. On 28″ Ariens models the part number 04145959 applies, and because this is the genuine OEM item at $44.14, it carries the highest single-unit price in this roundup. The width and curvature are matched to the housing, which aftermarket alternatives sometimes get wrong, leading to gaps that allow ice to accumulate anyway. Owners describe the swap as a straightforward bolt-on task.
- Pro: Exact OEM curvature ensures full housing contact.
- Pro: Covers multiple 28″ model numbers (921013 through 921023).
- Con: Highest price here; the 28″ width limits fitment to that class.
Do not buy this for a 24″ or 32″ machine; the physical dimensions will not fit.
Stens Drive Disc 240-394
On friction-drive snow blowers the drive disc is the rotating surface that grips the tire to propel the machine. A worn disc causes slipping, inconsistent forward motion, and uneven wear on the tire itself. The Stens 240-394 is an aftermarket part that lists compatibility across Ariens friction-drive blowers, Snapper rear-engine riders, and several Troy-Bilt model numbers, giving it unusually broad cross-brand fitment. At $23.87 the price is modest for a part that directly controls traction.
- Pro: One SKU serves three distinct brand families.
- Pro: Mid-range price for a component that affects drive quality directly.
- Con: Aftermarket material may not match OEM rubber compound longevity.
Skip it if your machine uses a chain drive or hydrostatic transmission rather than a friction disc.
Ariens 5W-30 Semi Synthetic Engine Oil
Small engines in snow blowers operate at relatively low speeds but experience wide temperature swings between storage and full throttle. Ariens formulates this 5W-30 semi synthetic to protect against that range while keeping a single grade for the entire winter season, eliminating the need to switch between lighter and heavier oils as temperatures fluctuate. At $14.49 it is a straightforward maintenance consumable, and owners note it is the factory-recommended grade for most modern Ariens engines.
- Pro: Single grade covers the full expected winter operating range.
- Pro: Factory-recommended viscosity, no guesswork on protection.
- Con: Semi synthetic carries a small premium over basic conventional oil.
Do not use this if your engine calls for a straight-weight or higher-viscosity oil per its manual.
Quanaoo Traction Cable 06900502
The auger control cable on Ariens Pro Deluxe, Platinum 24/28/30/32 SHO EFI, and RapidTrak models can stretch, fray, or corrode inside its housing over several seasons of use. This Quanaoo replacement carries the 06900502 part number and lists compatibility across numerous 92-series model identifiers. Owners report that installing it restores a firm, predictable auger engagement feel compared to a worn original. The cable housing and ferrules appear to match factory dimensions without trimming.
- Pro: Broad model coverage across Pro Deluxe and Platinum lines.
- Pro: Low cost relative to a dealer service for the same repair.
- Con: Aftermarket brand, so long-term durability data is thinner than OEM.
If your cable is merely dirty or slightly stiff, lubricating the housing may buy a season before replacement is needed.
OEM Ariens L3 Synthetic Gear Lube 00068800
Gear lube in the auger housing takes the brunt of every impact and shear event. Ariens specifies L3 synthetic gear lube for its snow blower gearboxes, and the 00068800 part is the factory-packaged option. Synthetic formulation resists viscosity breakdown at low temperatures better than conventional gear oils, which matters when the machine sits in a shed overnight at single-digit readings. At $19.99 the price reflects the small-bottle quantity typical for OEM lubricant packaging.
- Pro: Exact factory spec; no need to decode viscosity grades independently.
- Pro: Covers models calling for L1, L2, or L3 equivalents.
- Con: Bottle size may be small for owners servicing multiple machines.
Skip this if you already stock a verified synthetic gear oil meeting the same spec in bulk.
Buying Guide
Match the Model Number, Not Just the Machine Series
Ariens reuses model-series designations across years and sub-variants, so a 28″ chute on a 921013 and a 921023 may share the scraper part number while other components diverge. Always confirm the replacement part against the specific model plate on your machine. On the carburetors above, the listed compatibility strings exist precisely because one physical part serves multiple internal engine codes. If your number is not explicitly listed, treat fitment as unconfirmed rather than assuming interchangeability.
Evaluate Consumables by Formulation, Not Brand Alone
Engine oil and gear lube are the two items where the label specification matters more than the badge. A 5W-30 semi synthetic and an L3 synthetic gear lube both protect against low-temperature viscosity loss in ways a straight conventional product cannot, but the oil must match the engine manual and the gear lube must match the gearbox spec. Buying a branded product in the wrong viscosity or grade offers no advantage over a correctly specified generic.
Prioritize OEM for Safety-Critical and Precision-Fit Parts
Shear bolts, scraper blades, and carburetor float/tip assemblies are components where tolerance and metallurgy directly affect either mechanical protection or combustion quality. Aftermarket options can save money on wear items like drive discs and cables, but for parts whose failure mode is catastrophic (a non-shearing bolt destroys a gearbox) the modest price premium on OEM is inexpensive insurance.
Our Verdict
The top pick for most Ariens owners in 2026 is the OEM 5/16th Shear Bolt 52100100 — it is the single component most likely to be needed mid-season, costs under $10, and protects a repair that would otherwise run into the hundreds. The budget pick is the ST824 Carburetor at $21.98, which revives an older but common machine for the price of a tank of fuel. If your specific problem is ice accumulation in a 28″ chute rather than engine or driveline issues, the Genuine OEM Scraper 04145959 wins on that condition alone because no other item on this list addresses discharge-housing function.
FAQ
How often should Ariens snow blower shear bolts be replaced?
Shear bolts only need replacement after they break, which typically happens when the auger contacts a buried object. Most owners replace one or two per season under normal conditions; if yours break repeatedly without hitting anything, investigate auger-to-housing clearance rather than the bolt itself.
Can I use any 5W-30 oil in an Ariens snow blower engine?
Check your engine manual first. The Ariens 5W-30 semi synthetic is the factory-recommended grade for most modern units, but some older engines specify a different viscosity. Using the wrong grade can affect cold-start performance and long-term bearing protection.
Is the Stens Drive Disc a direct replacement for Ariens OEM?
The Stens 240-394 is listed as compatible with most Ariens friction-drive blowers, meaning it fits the same hub and bolt pattern. It is an aftermarket part, so material composition may differ slightly from the original, but functionally it performs the same grip task.
What part number should I search for if my carburetor is worn?
Locate the model plate on your engine and match it against the compatibility strings listed for the 20001368 and ST824 carburetors above. If your number appears in either list, that carburetor is the correct replacement without modification.
