What is the best riding mower for hills?

Slope is the main accelerant in the transaxle failure reports this guide reviewed. Owners describe K46 units losing the ability to climb hills as piston pump seals wear, and weak pull once the machine is hot. The reported causes are heat, weight and sustained load, and a slope adds all three, which is why the verdict tells buyers with real grade to move up a tier.

The X570 is this guide's pick for hilly or heavily loaded work: a K72 transaxle, a welded heavy-duty frame with weight brackets, and four years or 500 hours of warranty. One owner who was talked out of a $2,000-$2,500 tractor and into an X570 reports it works well up his hills. The Husqvarna TS 348XD is the cheaper route to traction. Its rear locking differential is the feature that keeps a two-wheel-drive tractor moving on damp slopes, and almost nothing else at its price has one, though Husqvarna does not publish which transaxle sits behind it.

The mid-tier X380 is contested on grade. One owner mowing 3.5 acres reports it climbing hills and towing well; another reports it struggling on hills and a groaning transaxle going in for warranty at 30 hours. Owners comparing machine types put lawn tractors rather than zero-turns on hilly open ground.

This guide does not rate machines by slope angle, and owner reports cannot say how often any of these machines fail. If you are buying used for a hilly property, test the tractor on the steepest part of your ground after it has run for 20 minutes, when a worn transaxle shows itself.