This video on lawn mower blades caught my attention.
To summarize, the major lawn mower manufacturers don't make their own blades, even if they are labeled as OEM. For the US market, blades are supplied by a handful of companies, the top 3 being Rotary, Oregon and Fisher Barton. These US made blades are sold to OEM's as OEM branded parts, while also being sold to the aftermarket and retailed under a variety of different brands. The moral of the story, just because something is officially an "aftermarket" part, that doesn't necessarily mean not OEM-grade.
That video reminds me of what I was told last month when I replaced the entire blade hardware on the Craftsman. To recap, I replaced the 40-year-old blade disk and the four mounting bolts, new blades were a formality. Now, getting OEM Rover parts these days is potluck, basically it's whatever is left sitting on a shelf at a mower shop rather than what's available from a warehouse. That's especially the case on REALLY OLD mowers like this. So, I bought an aftermarket blade disk, bolts and blades.
Why replace all that? Because the condition of the original OEM blade disk was suspect, and the mounting hardware was rusted, which the three small locating bolts are prone to snapping. With all the oil soaked into the original disk, it would have been hard to see any cracks or defects.
I then had people telling me I had done the wrong thing -
"How well does that reproduction blade carrier stack up against the OEM one? It looks thinner gauge metal just going by the photos. I'd be questioning the heat treatment process as well (rather that just does it fit?). I'd seriously doubt whomever in China is copying them is putting any $$$ into R&D. Were original Rover ones gal plated?"
"........aftermarket will be made from Chinesium.....................my only cause for concern would be if bolt holes were flogged out or there was cracking......."
"Bolts I'd be ok with, blade carrier I'd be wary. I hope it works out for you."
So in other words, I hope you don't cut your feet off for buying Chinese ****, even though I have no idea what I'm talking about".
And this is where I circle back to the video. The parts I chose were from G.A Spares, a leading aftermarket supplier in Australia, similar to Stens and Rotary in the US. G.A Spares is under the
Roy Gripske & Sons (RGS) umbrella, a company which dates back to 1964 and distributes a range of local and imported brands, as well as service parts. The company is split into two divisions -
Powerup Lawncare Products - basically the machinery end of the company, think local brands such as Victa, SupaSwift and Bushranger, as well as distribution for many overseas brands including Hustler, Gravely, Stiga, Ariens.
G.A Spares - the parts and service side of the business, which distributes both OEM and aftermarket brands.
So, G.A Spares is a multi-level supplier. For starters, it's a distributor for OEM parts for the likes of Kawasaki and Hustler, they even distribute NGK spark plugs, which you wouldn't call "aftermarket grade". It then supplies mower shops with quality aftermarket branded parts. And finally, they supply parts to major OEM's, be that as OEM branded spares or for production line components. Actually, the Bushranger brand uses the chassis tooling from an older Rover model, along with the Rover blade setup, wheels, and hubcaps.
But apparently I've risked my safety by installing brand new blade components from an aftermarket supplier, and that I should've stuck with the rusted out 40-year-old stuff, simply because it's classed "OEM". The blades, bolts and disk are still used on brand new mowers made today.
This all came from the same group of people who told me I had ruined the engine by using the wrong spark plug, even though it's the plug they were made with, the plug that came with the mower, and that the engine runs absolutely fine.
The joys of the internet, everyone is an expert, even when they have no grasp of reality and fail epically with comprehension.