Everything on this page concerns one thing: this snow blower spinning concave tooth, in Canadian use.
Snow Blower Parts, Spinning Concave Tooth Washer, Stock #203020380 is a fastener, the specific nut, bolt, screw, washer or clip that holds one part of the machine to another. The stock number is 203020380. It is listed under Parts and Accessories. Everything on this page is written against stock number 203020380 rather than against the category in general.
On this page
Where a snow blower spinning concave tooth fits
Vibration is the enemy here. What holds through a summer of mowing does not necessarily hold through a February of clearing ridge ice. The cheapest way to ruin an aluminium casting is to run a near enough fastener into it and lean on the spanner.
It is listed under Parts and Accessories. The stock number is 203020380. At $3.48 Canadian, this sits where you would expect for the class.

The numbers
| Detail | Value |
|---|---|
| Stock number | 203020380 |
| Category | Parts and Accessories |
| Price | $3.48 CAD |
| Ships | Canada wide |
The listed price is $3.48 CAD and that is the figure you pay, because the stock is already in the country. The parts everybody wants in February are the parts that are slowest to arrive in February.
Identifying the correct component
Order this one by stock number 203020380 rather than by the name of the machine it came off. Model names persist for years while the components underneath them do not.
Replace plated hardware rather than reusing it once the plating is scratched, because that is where corrosion starts. Check whether the original had a nylon insert, a flange or a shoulder before substituting anything.
Diagnosis before ordering saves a return, and the snow blower repair guide is written for exactly that. Where a fitment is genuinely ambiguous we will say so rather than take the order and hope.
Regional notes
If you are clearing in Atlantic Canada, the local pattern is depth, wind and salt air arriving together. October is the quiet month for this. February is not, and freight times show it.
Freight across the country slows once the first storms arrive, so autumn is when a spare actually reaches you quickly. Thirty year normals for your own station are published free by Environment and Climate Change Canada.
best snow blowers in Canada sorts picks by snowfall band and snow blower prices in Canada sets out what each class costs in Canadian dollars.
Fitting it
Isolate the machine before you start. Nothing on this job needs the engine turning. Bag the fasteners by stage rather than tipping them into one tin.
Use a thread locker only where the manual asks for it, and never on a nylon insert nut. Keep the old part until the machine has run properly under load.
Use the clearing tool clipped to the handle. That tool exists because a stored impeller does not care how careful you are. The same rule applies whenever the auger housing is open.
Symptoms worth acting on
If the machine is doing any of the following, this is the component to examine first.
- a fastener that turns without tightening
- a washer flattened out of shape
- a nylon insert that no longer grips
- a bolt that bottoms out before the joint is clamped
- a joint that will not stay tight through a season
They fail from corrosion and from being reused too often, not from age. Buying in autumn costs the same as buying in January and arrives considerably faster.
Delivery, returns and warranty
At $3.48 Canadian, this sits where you would expect for the class. Small items move by standard parcel service and orders over $999 ship free Canada wide. shipping and delivery has the detail.
returns and refunds sets out the window and who pays freight in which circumstances. Every machine carries its full manufacturer warranty. The exclusions are on the warranty policy.
If anything here is unclear the contact page reaches somebody who has taken these machines apart. Consumer rights when buying a snow blower spinning concave tooth in Canada, above any retailer policy, are set out by Consumer Protection Ontario.
Reading the listing
The words that matter in this listing are spinning, concave, tooth, washer. Each one narrows the fitment. The qualifier at the end of the name is usually the one that decides the fit.
This line is 203020380. Use those figures rather than a description and the fitment is settled.
What else to check
Most of what fails next is already visible while you have access. Give the covers and guards for cracks a proper look while access is easy. The same visit should cover the seals at every shaft exit. Do not close the assembly without checking the bearings for play and roughness.
We hold all of those on snow blower parts, listed by the number stamped on the part. the maintenance checklist sets out the seasonal order to work through them in, and the snow blower repair guide covers what to do when one of them turns out to be the real fault.
The autumn order
The households that never lose a weekend to a breakdown are not lucky. They have a small box on a shelf with four or five cheap items in it. On a cordless machine the list is shorter: a spare pack and a paddle set is genuinely all most owners need.
All of it sits on snow blower parts and ships Canada wide from stock held here. Stock moves quickly once the snow starts, which is the only real argument for ordering early. A pallet or a length of timber under the machine over summer is the cheapest rust prevention there is.
People shopping for a snow blower spinning concave tooth usually start with price and end with availability. The sensible order is the reverse. Establish that a snow blower spinning concave tooth of this type suits your surface and your typical snowfall, then compare what the market charges for it.
The market for a snow blower spinning concave tooth in Canada is thinner than it should be, which is part of why we stock this properly. A snow blower spinning concave tooth that nobody carries parts for is a machine with an expiry date.
Frequently asked
Does fitting this affect my warranty?
Fitting a correct replacement part does not void a manufacturer warranty. Consumables were never covered in the first place.
How long should it last?
Salt is what kills them on a machine stored near a road.
What are the symptoms that this needs replacing?
vibration that appeared after work was done nearby; visible corrosion at the thread or under the head; a fastener that turns without tightening. Any one of those is worth acting on before the next storm.
How do I know this fits my machine?
Order by stock number 203020380. The same model frequently ships with different components across production years, so the stamped number is the only reliable identifier.
Can I fit it myself?
In most cases yes. Use a thread locker only where the manual asks for it, and never on a nylon insert nut. Work with the plug lead pulled on a petrol machine and the pack out on a cordless one.
Will you check the fitment for me?
Yes. Send the machine model, the serial number and a photograph of the old part through the contact page and we will confirm in writing before anything ships.





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