STIHL RZ 552K Gas Zero-Turn Mower – 52" Commercial-Grade Deck

Part of the STIHL RZ 500 Series, the RZ 552K is a gas-powered zero-turn mower suited to farms, acreages and residential or commercial mowing services. It combines a commercial-grade 52" fabricated deck with a suspension system designed to keep both the ride and the cutting height consistent.

Suspension that protects the cut

An advanced four-wheel suspension system includes mowing deck height compensation, so the deck holds a more even cutting height as the mower rides over uneven ground. Independent front suspension uses two control arms linked to shock absorbers to keep the front wheels perpendicular to the ground.

Hydro-Gear ZT-3400 drive

Professional-grade Hydro-Gear ZT-3400 transaxles deliver a top forward speed of 10 mph and 5 mph in reverse. Each transaxle has a 7" cooling fan to help manage heat during long mowing sessions.

Durable deck components

The 52" fabricated deck is commercial-grade, and its 5.25" aluminum spindles are greaseable for a longer service life. Cutting height is changed with a foot-operated lever.

Key features

• Commercial-grade 52" fabricated mowing deck
• Four-wheel suspension with cutting height compensation
• Independent front suspension with two control arms and shock absorbers
• Hydro-Gear ZT-3400 transaxles with 7" cooling fans
• Up to 10 mph forward and 5 mph reverse
• Greaseable 5.25" aluminum spindles
• Foot-operated mowing height lever

Frequently asked questions

What top speed does the RZ 552 K reach?

The Hydro-Gear ZT-3400 transaxles allow up to 10 mph forward and 5 mph in reverse.

How is the cutting height adjusted?

A foot-operated lever raises and lowers the mowing deck.

Can the spindles be serviced?

Yes, the 5.25" aluminum spindles are greaseable, which helps extend their life span.