I've been managing equipment procurement for a mid-sized aggregates operation for about six years now. We run a fleet that includes a Metso LT106 jaw crusher, among other gear. For a long time, our policy was simple: stick with OEM parts. It felt safe. But when our breaker box for the LT106 started acting up last year, the price tag for the OEM replacement made me rethink everything. That one quote—nearly double what I expected—sparked a full audit of our spare parts strategy.
This isn't a simple "OEM good, aftermarket bad" story. It's about understanding where the real costs are hiding. What most people don't realize is that the decision often comes down to your tolerance for risk vs. your need for predictability. And it's rarely as clear-cut as the marketing material suggests.
Let's start with the obvious: Metso OEM parts for your jaw crusher, whether it's the LT106 or a larger model, cost more. A lot more. We're talking 30-60% more upfront compared to aftermarket options. For a set of fixed and swing jaws for the LT106, the OEM quote might run you $8,000-$12,000, while a reputable aftermarket brand could be $5,000-$7,000.
But here's the thing about that premium: it buys predictability. You know the part fits. You know the metallurgy meets the spec exactly. There's no tweaking during installation, no wondering if the bolt holes line up. That downtime—the cost of a mechanic standing around trying to make a cheaper part fit—is the first hidden cost people underestimate.
People think expensive vendors deliver better quality. Actually, vendors who deliver quality can charge more. The causation runs the other way. Metso's price is a reflection of a massive R&D budget and rigorous quality control. The question isn't if the part is good—it is. The question is whether that level of certainty is worth the premium for your specific operation.
Switching vendors saved us $8,400 annually—17% of our budget—when we moved a portion of our wear parts to a well-regarded aftermarket supplier. That's a real number from our 2024 cost analysis. The jaws alone were a significant saving.
But here's something vendors won't tell you: the first quote is almost never the final price for ongoing relationships. There's usually room for negotiation once you've proven you're a reliable customer. We got an additional 5% off on our second order.
The real killer with aftermarket isn't just quality (though that's a risk). It's the variability. The crusher wear parts from 'Brand X' might last 8 weeks, while the OEM parts last 12. That's a 33% shorter lifespan. Now that $2,000 savings on the part looks a lot smaller when you factor in the replacement labor and, more critically, the lost production during downtime.
Here's where the analysis gets specific. The Metso IC70C automation system is the brain of the crusher. The breaker box is part of that nervous system. In my experience, going aftermarket on high-tech, electronic components is almost always a bad idea.
After comparing 8 vendors over 3 months using our TCO spreadsheet, I found that the cost of failure for an electronic part is dramatically higher than for a wear part. A jaw that wears out 20% faster costs you money. A breaker box that fails can shut down the entire plant for a day. The diagnostic tools Metso provides, designed for their own IC70C system, simply don't work as well on aftermarket components. That lost troubleshooting time is a killer.
"We tried an aftermarket electronic module for our cone crusher once. It cost 40% less. It failed in three months, and our technician spent 6 hours diagnosing it because the error codes were gibberish. We ended up buying the OEM part anyway. The total cost was 170% of the original OEM quote."
That $450 'savings' on our air compressor's pressure switch a few years back? It cost us $1,200 in a failed compressor overhaul and lost production from the secondary crushing circuit when it went down. Dodged a bullet by going OEM on the breaker box, but only just.
The OEM warranty on a Metso part isn't just a piece of paper. It's a direct line to the engineers who designed the machine. When we had a premature wear issue on a set of OEM cone crusher liners, Metso sent a field engineer out within 48 hours to inspect and adjust our settings. The replacement liners were shipped at a 50% discount.
Can you get that from an aftermarket supplier? Rarely. The best you'll get is a replacement part, maybe. But the diagnostic support, the field service, the knowledge that the part's metallurgy is perfectly matched to your specific application—that's the intangible value.
So glad I paid for the OEM breaker box. Almost went standard to save $450, which would have meant missing a week of production waiting for the right diagnostic tools. That's a lesson learned the hard way—once.
Based on tracking over 200 orders across 6 years, here's my simple framework:
The $8,400 we saved by buying aftermarket jaw crusher wear parts was real. So was the $2,800 we spent on a 'cheap' air compressor switch that failed. The trick isn't picking a side. It's knowing which part is which. For your Metso LT106 jaw crusher parts, start with the OEM for the breaker box. For the metso jaw crusher parts that aren't the brain of the machine, a quality aftermarket option is often the smarter play. Discounts on parts are great, but discounts on production are a poison. Period.
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