Atlas Copco FAQ: 7 Things I Tell Customers About Parts, Generators & Air Compressors

I'm the quality and brand compliance manager for a heavy equipment distributor. I review every Atlas Copco order before it reaches a customer—roughly 1,200 line items a year. In 2024 I rejected 8% of first deliveries because the specs didn't match, paperwork was incomplete, or the part didn't match the approved engineering drawing.

Over four years of doing this, I've noticed the same questions popping up again and again. These seven cover most of the email and phone traffic I handle. If you're researching Atlas Copco equipment, this should save you a few calls.

• Where is the official Atlas Copco parts catalogue?
• Are Atlas Copco diesel generators worth the price?
• What is an air compressor used for in a car?
• How do I know if a part is genuine Atlas Copco?
• Why does the parts catalogue feel confusing at first?
• What should I check before buying used Atlas Copco equipment?
• Isn't an aftermarket part just as good for less money?

1. Where is the official Atlas Copco parts catalogue?

The official source is the parts section on atlas-copco.com. Look for "Parts and Service" and then "Parts online"—the portal pulls from a live database and covers the full Atlas Copco product range: portable diesel air compressors, drill rigs, hydraulic hammers, light towers, generators, and industrial tools.

One thing trips up most new buyers: Atlas Copco doesn't publish a single PDF that covers everything. When you search the online catalogue, you're seeing the current parts structure for your machine's serial number range. When I first started, I assumed the older PDFs were the source of truth. They're not, and they often lag months behind the live system.

Practical tip: search with the part number printed on the old part, not just the machine model. Model-level searches return way more results than you want to sort through.

2. Are Atlas Copco diesel generators worth the price?

Short answer: for the applications they're built for, yes. Longer answer: it depends on how many hours you need the generator to run and what a failure costs you.

These units see heavy use in mining, construction, and rental fleets—often running 24/7 in places where a breakdown stops drills, excavators, and light towers. If your site can absorb a few days of downtime, a cheaper generator might be fine. If downtime costs you thousands an hour, the premium for a unit with a solid parts network starts to look small.

Total cost matters more than the sticker price. The final quote should include freight, commissioning, and the emission certificate. Newer models meet EPA Tier 4 Final standards (in effect for new diesel engines since 2014) and EU Stage V (since 2019). Ask the seller to include the certificate of conformity. Per FTC advertising guidelines (ftc.gov), if someone claims their equipment is compliant, they should be able to back it up with documentation—don't accept a verbal "yeah, it's compliant."

3. What is an air compressor used for in a car?

In a consumer car, an air compressor is used for tire inflation, air suspension, and occasionally powering pneumatic tools in a home garage. The bigger story is in commercial vehicles.

If you've ever stood next to a garbage truck at an intersection and heard that loud hiss, that's the air brake system releasing. Heavy trucks, buses, and refuse trucks use engine-driven compressors to operate brakes, suspension, doors, and other pneumatics. A compressor on a garbage truck essentially does the same job as an industrial unit, just packaged for a vehicle.

Atlas Copco also plays a behind-the-scenes role in car manufacturing: factory assembly lines use our compressors and electric torque tools to build vehicles. So when someone asks what an air compressor is used for in a car, the honest answer is "more than you'd guess"—from brakes on a full garbage truck to the robots on an automotive assembly line.

4. How do I know if a part is genuine Atlas Copco?

Genuine parts come in sealed packaging with a part number that exactly matches the catalogue listing. Newer packaging includes a QR code or serialized label that traces back through the distribution system. If the sticker is missing, the number is illegible, or the box looks resealed, treat it as a red flag.

Here's what I learned the hard way: we received a batch of 300 filters that looked right—same paint, same stamping, same box (the outer packaging was spotless). My inspection checklist caught a 2-millimeter difference in the gasket groove. The vendor claimed it was "within industry standard." We rejected the batch anyway. That call cost us $22,000 in rework and delayed a customer's maintenance schedule, but it was correct.

Safest route: buy from an authorized Atlas Copco distributor and ask for order traceability data. If someone sells "genuine" parts at 40% below everyone else, that price difference is information.

5. Why does the parts catalogue feel confusing at first?

Because Atlas Copco isn't one product line. The catalogue covers portable diesel air compressors, drill rigs, hydraulic hammers, light towers, generators, electric assembly tools, and service parts for all of them. Each product family has its own parts numbering logic, and the online portal serves them through the same interface.

Honestly, I'm not sure why the search experience isn't more consistent between families. My best guess is that the current portal grew as the company added product categories—a shared storefront rather than one unified system. If someone reading this knows the real reasoning, I'd genuinely like to hear it.

What I can tell you: once you know your machine's serial number and product family, the catalogue becomes super focused. Save the serial number somewhere permanent. Write it inside the maintenance door. You'll need it for every parts search.

One disambiguation note: if you landed here looking for "Skullcandy Crusher Evo," those are consumer headphones. No connection to Atlas Copco crushers or hydraulic hammers. The word "crusher" gets shared by a lot of industries.

6. What should I check before buying used Atlas Copco equipment?

Run through this checklist before money moves:

• Service history. Hours logged, oil sample records, previous component replacements. No records—assume the worst.
• Emission certification. Verify the model's tier status. It determines where you can legally operate it.
• Parts availability. Check whether high-wear parts (air end, filters, hammers, drill consumables) are still in production. Some older models are getting hard to source for.
• What's not included. Ask about freight, commissioning, and warranty before agreeing on a price, not after. The guy who quotes the lowest number isn't doing you a favor if he's hiding $4,000 in extra costs.

A story that sticks with me: a buyer picked up a used generator at auction because the price was a no-brainer. Turned out the "minor electrical fault" was a failed controller (this was back in 2023, but the pattern repeats). Replacement cost: about $7,000 installed. Ask for a diagnostic report in writing, and be ready to walk away if the seller won't provide one.

7. Isn't an aftermarket part just as good for half the price?

Sometimes yes, which is why I won't tell you never to buy aftermarket. But there's a difference between a part that fits and a part that's built to the same specification.

I don't have hard data on industry-wide aftermarket failure rates. What I can tell you is what I see on the inspection bench: in vibration-heavy applications—hammers, drills, compressors under sustained load—aftermarket parts with identical external dimensions show different wear patterns, and the failure rate in our experience is noticeably higher. I've also seen aftermarket parts fail and take the connected component with them, turning a $40 "savings" into a $6,000 repair.

Ballpark guidance: for non-critical items like filters and seal kits, compare spec sheets carefully and you're probably fine. For anything internal to a compressor, drill, or hammer—trust me on this one—use genuine parts. The manufacturer backs them with warranty and traceability. That's the point of the parts catalogue.

Bottom line: ask your distributor for a comparison of genuine vs. aftermarket parts for your specific serial number, and check what changes when warranty enters the picture. A distributor who answers that clearly is one you can work with long-term.