I'm not a mechanic, so I can't speak to the engineering tolerances inside a Bobcat hydraulic motor. What I can tell you from a maintenance ordering perspective is that I've personally ordered (and screwed up) enough Bobcat construction equipment parts to fund a small vacation. Roughly $4,200 in mistakes over the last five years. The worst single error? $890 on a rush order of Bobcat online parts that I ordered wrong.
That's where this comparison comes from. If you're sitting at a computer trying to decide between ordering a Bobcat branded filter vs a generic one, or if you're wondering whether a scissor lift part from a non-OEM supplier is worth the risk, I've been there. This isn't theory. It's my checkbook.
What We're Comparing: OEM Bobcat vs Aftermarket Parts
Before we go any further, I need to clarify the scope. I'm comparing genuine Bobcat parts purchased through authorized channels against generic aftermarket alternatives from reputable suppliers. I'm not comparing Bobcat against white-label no-name parts, and I'm not comparing it against other brands like shelby truck parts or Deere stuff. Strictly OEM Bobcat vs generics that claim compatibility.
The comparison runs across four dimensions:
- Cost
- Fit and compatibility
- Durability
- Availability and lead time
Here's what I discovered, dimension by dimension.
Cost: The Big Obvious Difference
This is where people assume the generic wins, and they're not wrong. But the gap isn't always as big as you'd think.
On my T650 skid steer, an OEM Bobcat hydraulic oil filter runs about $38 through the local dealer. A comparable generic from a well-known aftermarket brand? $12. That's a 68% savings. If I'm changing filters every 250 hours, that's meaningful.
But here's the part that surprised me: on some specific items, the price difference shrinks dramatically. I once priced out a Bobcat OEM joystick assembly. Dealer price: $415. Aftermarket equivalent: $380. Only $35 difference. At that point, the OEM was a no-brainer for me—it's a part you touch constantly.
The pattern I've learned: consumables have the biggest price gaps. Electronic components and assemblies have smaller gaps. Structural parts (lift arms, quick attach plates) vary wildly, and I'd rather not guess on those.
"I ordered a generic air filter for my Bobcat once. Saved $22. It lasted maybe 60% as long as the OEM before I started seeing restriction warnings. That $22 "savings" cost me a $98 service call."
Fit and Compatibility: Where I Wasted $890
I mentioned an $890 mistake earlier. Here's the story:
In September 2022, I ordered what I thought was the correct Bobcat online parts for a control module on my S650. I'd checked the part number against an online cross-reference. It looked fine on my screen. I ordered five units to have spares. The parts arrived, I installed one, the machine threw a communication error. Turns out the cross-reference was for a different revision. Five items, $890, straight to the trash after I couldn't return them (electrical components, non-returnable).
That's the risk with generics. The OEM Bobcat parts come with a guarantee that they'll fit your specific serial number range. The generic cross-reference might say "compatible with Bobcat S650" but not catch a mid-year production change. I've learned this the hard way.
On the flip side: simple parts like filters, belts, and steel wear plates tend to have fewer fitment issues. They're standardized. Electronics and sensors? I stick with OEM now.
Durability: Not All Generics Are Created Equal
I want to be careful here. I'm not a reliability engineer, so I can't run Weibull analysis on part failure rates. What I can tell you is my personal tracking. I maintain a spreadsheet of every part I've ordered since 2021 and whether it failed within 1,000 hours of operation.
Here's my dirty data:
- OEM Bobcat undercarriage parts (sprockets, rollers): average life 2,100 hours across 4 machines
- Generic undercarriage parts (same category): average life 1,400 hours across 3 machines
- That's a 33% life reduction for a 40% price savings. Net cost per hour was nearly identical.
Filters were a different story. My generic oil filters averaged 250 hours before I noticed any change in pressure readings. OEM Bobcat filters went 300+ hours before I changed them at my standard interval. The OEM filters outlasted the generics by about 20% but cost 3x as much. By cost per hour, the generics actually won.
What I've settled on: consumable parts I buy generic from a supplier I trust. Structural and electrical components I buy OEM. That's my rule now, and I made it after enough mistakes.
Availability and Lead Time: The Real Disappointment
Here's something vendors won't tell you: "availability" is a lie. Both sides struggle with it.
When I needed a Bobcat lift cylinder seal kit for a rush job—needed it in three days—the OEM dealer said two weeks. A generic cross-reference had it in stock and shipped same day. I paid extra for overnight. It arrived, it fit, it sealed. That generic saved the job.
But I've also had the reverse. I ordered a generic radiator for a Bobcat 773 from a highly-rated online supplier. Their site said "in stock." After three days of no tracking number, I called. They'd drop-shipped it from a warehouse that was out of stock. I got it two weeks later. By then, I'd already bought the OEM part from the dealer.
My rule now: verify stock before ordering. Ask. "Is this physically on your shelf?" If they can't confirm, I assume it's not.
When to Buy OEM Bobcat, When to Go Generic
I can only speak to my context: a mid-size landscaping operation in the Midwest, running four Bobcat machines (two skid steers, one mini excavator, one compact track loader). Your situation may be completely different.
Buy OEM Bobcat when:
- The part is electrical or electronic (controllers, sensors, displays)
- Downtime is catastrophic (you absolutely cannot afford the wrong part)
- The price gap is under 20%
- You need guaranteed fitment for a specific serial number range
Consider generics when:
- It's a consumable (filters, belts, wear parts)
- You have a trusted supplier with a return policy
- The price gap is substantial (40%+ savings)
- You have time to deal with potential returns
I keep a checklist on my phone now. Before every order, I ask five questions. That checklist has caught 19 potential mistakes in the past 18 months. The 12-point checklist I created after my third mistake has saved us an estimated $8,000 in potential rework. 5 minutes of verification beats 5 days of correction.
So that's my take. Not the definitive answer for everyone. But for a guy who orders Bobcat online parts and has the scars to prove it? It works for me.
