Why buy the Ariens ZENITH 52R 52″ Zero-Turn Mower?
- Professional-grade 726cc Kawasaki® FX730V V-Twin engine for reliable power.
- Robust 132cm (52″) fabricated rear-discharge deck made from strong 10-gauge steel.
- Industry-leading, fully welded tubular steel frame for maximum strength and stability.
- Full suspension seat and front caster fork suspension for a smoother ride and operator comfort.
- Foldable Rollover Protection System (ROPS) fitted as standard for enhanced operator safety.
- Convenient foot-operated deck lift system with 15 distinct cutting positions from 3.8cm to 12.7cm.
The Ariens ZENITH 52R is a culmination of extensive experience, designed specifically for daily professional and local authority applications. It delivers the maximum in performance, durability, and operator comfort, making it a machine you can rely on, every single day. The ‘R’ in its name signifies its rear-discharge capability, where clippings are efficiently ejected to the rear between the wheels, keeping paths and beds clear.
At its core is the professional-grade Kawasaki FX730V V-Twin engine, complete with a double air filter for longevity. This power is matched by exceptional comfort, thanks to suspended front wheel forks and a cushioned, fully adjustable comfort seat. The commercial-grade 132 cm (52″) cutting deck can also be used with an optional mulching kit, offering excellent versatility. With a standard ROPS and a professional warranty, the ZENITH 52R is built for serious work.
Key Features and Benefits
Industry-Leading Frame Design: The ZENITH 52R is built upon a large-dimensioned tubular frame, constructed using automotive bending technology to minimise weld seams. This provides unrivalled strength and stability, effortlessly carrying the machine’s loads during intensive use.
Advanced ENVY™ Mower Deck: The mower deck is one of the most heavily stressed components. The ENVY™ deck features improved airflow and an enlarged discharge for a perfect cut, even on grass that is lying down. It is secured with a 4-point suspension system for permanent parallelism and features blade spindles made from forged aluminium, which run cooler and are more resistant to impact and vibration than cast alternatives.
Automatic Belt Tensioner System: The Constant Belt Tension (CBT) technology automatically maintains the correct tension on the mower deck belt. This significantly increases the service life of the belt, compensates for wear, and prevents slippage, ensuring a consistently high-quality cutting pattern.
Operator Safety and Comfort: A standard, foldable Rollover Protection System (ROPS) with a safety belt provides crucial protection for the operator. For maximum comfort during long working hours, the hydro-pneumatic suspension of the driver’s seat can be precisely adjusted to the driver’s body weight, complete with adjustable armrests and a high backrest. The foot-pedal operated deck lift allows for effortless adjustment across 15 cutting heights (3.8 – 12.7 cm).
Ideal Applications
The Ariens ZENITH 52R is perfectly suited for professional landscapers, grounds maintenance contractors, and municipalities responsible for large green spaces. Its robust construction and efficient rear-discharge system make it ideal for managing parks, large estates, sports fields, and complex commercial properties. It excels on large, flat, undulating, or even hilly terrain (up to 15°), providing a pristine finish with commercial-grade speed.
A range of optional accessories is available to further enhance its capabilities, including a trailer hitch kit, LED headlight kits, and puncture-proof “TWEELS”.
As an authorised UK dealer for Ariens, Sims Garden Machinery has over 100 years of experience in the industry. When purchasing a professional machine like the ZENITH 52R, buying from a specialist dealer is essential. Unlike online box-shifters, the team at Sims provides expert advice from trained sales staff to ensure the machine is right for the job. Every machine is fully assembled and inspected by trained mechanics in the dedicated workshop through a Pre-Delivery Inspection (PDI). For local customers in Warwickshire and the surrounding areas, this includes free personal delivery and a full handover demonstration, ensuring complete confidence from day one. Customers are welcome to visit the Stratford-upon-Avon showroom to see the quality of Ariens mowers firsthand.
Our team is here to help. Contact us today for expert advice.
Technical Specification
| Model Number | 991321 |
| Engine | Kawasaki® FX730V V-Twin OHV |
| Engine Displacement | 726 cm³ |
| Drive System | Hydro-Gear® ZT-3200 Transaxles |
| Maximum engine Power | 16.6 kW / 22.2 hp at 3,600 rpm. |
| Fuel Capacity | 19.3 l |
| Max. Speed Forward / Backward | 12.9 km/h / 6.4 km/h (8.0 mph / 4 mph) |
| Deck Type | Rear discharge |
| Deck Material | 3.6 mm sheet steel with double thickness around the blade support |
| Deck Construction | Welded |
| Deck Lift System | Foot operated |
| Number of blades | 3 |
| Spindle Material | Forged Aluminium |
| Spindles drive | V-belt |
| Spindle Clutch | Electric Ogura® |
| Cutting Width | 132 cm (52″) |
| Cutting Heights | 3.8 cm – 12.7 cm (1.5″ – 5.0″) |
| Cutting Positions | 15 |
| Front Wheels | 13 x 6.5-6 |
| Rear Wheels | 22 x 10.5-12 |
| Seat | Full suspension, adjustable high back seat w/ lumbar support and armrests |
| ROPS Rollover Protection | Yes (Standard) |
| Hour Meter | Yes |
| Weight | 411 kg |
| Length | 201 cm |
| Width | 137 cm |
| Height | 125 cm w/ ROPS folded down; 184 cm w/ ROPS up |
| Limited Warranty Machine | 4 years / 750 hrs. |
Why buy from Sims Garden Machinery?
Authorised main dealer
We are authorised dealers for leading brands, meaning genuine parts, manufacturer-approved training, and warranty support you can rely on.
Real people, real support
No call centres. No ticket systems. Just a knowledgeable local team you can speak to when you need help.
Expert advice — not pushy sales
Our team are trained mechanics and product specialists, so you get honest, practical advice based on how you’ll actually use the machine.
Established, independent family business
We’re a long-standing independent dealer with deep roots in the local area — built on reputation, repeat customers, and word of mouth.
Frequently Asked Questions
Frequently Asked Questions
Who is the Ariens ZENITH 52R designed for?
The Ariens ZENITH 52R is engineered for commercial and professional users. This includes landscape contractors, grounds maintenance teams, local authorities, and owners of large estates who require a durable, high-performance mower for daily, intensive use across extensive areas.
What are the main advantages of a rear-discharge deck?
A rear-discharge deck offers several key benefits. It ejects clippings neatly between the rear wheels, which prevents grass from being thrown onto pathways, driveways, or into flower beds. This design is also highly effective when cutting taller grass compared to a standard mulching kit, making it versatile for varying conditions.
Is the ZENITH 52R comfortable for long periods of use?
Yes, operator comfort is a primary feature. It includes a full suspension seat with hydro-pneumatic suspension that can be precisely adjusted to the driver’s body weight. This, combined with adjustable armrests, a high backrest, and front caster fork suspension, significantly reduces shocks and vibrations, minimising operator fatigue during long workdays.
What kind of terrain can the ZENITH 52R handle?
The ZENITH 52R is designed for versatility. It performs exceptionally well on large, flat areas but is also well-suited for undulating and hilly terrain. The manufacturer specifies a safety limit of a 15° incline, and its robust construction ensures stability and a uniform cut across varied ground conditions.
What is the warranty on the Ariens ZENITH 52R?
The Ariens ZENITH 52R comes with a professional limited warranty of 4 years or 750 operating hours, whichever comes first. This reflects the machine’s commercial-grade build quality and durability.







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