How much does it cost to rebuild a Rotax 582

So you're looking at rebuilding a Rotax 582. Yeah, it's not cheap. Whether you fly ultralights or light sport aircraft, this engine will take a real bite out of your wallet. The thing is, costs swing all over the place depending on how trashed the engine is, what parts you need, and whether you're doing the grunt work yourself or paying someone who actually knows what they're doing. A full overhaul? You're looking at $3,500 to $7,500 on average. Just the top-end work—cylinders and pistons—runs $1,500 to $3,000. But honestly, the price really depends on your crankshaft, bearings, and gearbox condition. Those are the wild cards.

What is the average cost of a Rotax 582 top-end rebuild?

Top-end rebuild means new pistons, rings, wrist pins, and cylinder head gaskets. That's it. It's what most people end up doing because the 582 is a two-stroke—it just eats top-end components faster than anything else. Parts alone? Expect $800 to $1,500. If you're paying a certified Rotax shop to do the work, tack on another $700 to $1,500 for labor. A lot of guys try to do it themselves to save cash, and honestly, it's doable. But you'll need specialized tools and a torque wrench that's actually calibrated right. Mess that up and you'll be buying more parts soon.

Expert Insight: "A top-end rebuild is often the most cost-effective way to refresh a tired Rotax 582. If the crankshaft bearings are still tight and the gearbox is quiet, a top-end rebuild can restore compression and power for about half the cost of a full overhaul."

What parts are included in a full Rotax 582 overhaul?

A full overhaul—what they call a "major overhaul"—means replacing pretty much everything that wears out. Top-end stuff plus the bottom-end. Here's a breakdown of what you're looking at cost-wise.

Cost breakdown table for a full Rotax 582 rebuild

If a shop does your labor at $75 to $100 an hour, you're staring at $5,500 to $7,500 easy. DIY guys? They usually spend $2,500 to $4,000 on parts and tools. Maybe less if they're lucky.

What is the cost of a Rotax 582 crankshaft replacement?

The crankshaft? That's the big one. A new OEM crankshaft assembly runs $1,200 to $1,800. If yours isn't totally trashed, you might get away with a rebuild service—new bearings and seals for $500 to $900. But most mechanics will tell you to just replace the damn thing during a full overhaul. Why risk it failing later? Labor's a bitch though—splitting the crankcase takes 6 to 10 hours. Total cost for a crankshaft replacement with labor? Usually $2,000 to $3,000. Ouch.

How much does a Rotax 582 gearbox rebuild cost?

The gearbox is a separate unit that drops the RPM for your propeller. Rebuilding it means new bearings, seals, and maybe gear teeth if they're worn. Parts cost $300 to $600. Labor's about 4 to 6 hours, so another $300 to $600. Total's usually $600 to $1,200. But if the housing is cracked or the gears are damaged? Double or triple that if you need a whole new gearbox. Not fun.

What are the hidden costs of a Rotax 582 rebuild?

People always miss the extra stuff. It can add 20% to 30% to your bill. Here's what sneaks up on you:

• Specialized tools: Flywheel puller, case splitter, torque wrench adapter—$200 to $500 easy.
• Shipping and core charges: Sending the engine to a shop? Round trip shipping is $100 to $300. Some shops hit you with a core deposit if it's not rebuildable.
• Carburetor synchronization: After the rebuild, you'll need a sync tool. That's $50 to $150.
• Cooling system flush: If the engine cooked itself, you might need a new radiator and hoses. Add $100 to $300.
• Exhaust system repair: Those exhaust pipes crack at the flanges all the time. Welding or new pipes? $100 to $400.

How many hours does a Rotax 582 last between rebuilds?

Rotax says TBO (Time Between Overhauls) is 300 to 500 hours for the top end and 600 to 1,000 hours for the whole engine. But honestly? A lot of owners push it to 800 or even 1,200 hours before a full overhaul. It all depends on how you treat it. Good synthetic oil at 50:1 ratio? Proper warm-up? Not screaming at high RPM all the time? Yeah, that'll stretch it out. But neglect it, and you'll be rebuilding way sooner.

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