Best 42-Inch Zero Turn Mowers

Choosing the best 42-inch zero-turn mower depends on your specific needs, budget, and property characteristics. While all zero-turns offer superior maneuverability and faster mowing times compared to traditional lawn tractors, key differences lie in engine power, deck construction, transmission quality, and overall durability.

Here are some of the top contenders in the 42-inch category, often praised for their performance and value:

1. Husqvarna Z242F (ClearCut™ Deck)

The Husqvarna Z242F is a very popular choice due to its robust construction and excellent cutting performance.

Key Features:

  • Engine: Typically powered by a Kawasaki FR Series V-twin engine (21.5 HP or 23 HP). Kawasaki engines are renowned for their reliability and smooth operation.
  • Mower Deck: Features Husqvarna’s ClearCut™ fabricated (welded) steel deck. This is a significant upgrade over stamped decks, offering superior durability and a cleaner cut, especially in tougher conditions.
  • Transmission: Hydro-Gear EZT hydrostatic transmission, providing smooth and responsive control.
  • Cutting Width: 42 inches.
  • Frame: Heavy-duty steel frame for durability.
  • Comfort: High-back seat, ergonomic control levers, and an accessible control panel.

Strengths:

  • Fabricated Deck: The standout feature, offering professional-grade durability and airflow for excellent cutting and bagging performance.
  • Reliable Engine: Kawasaki engines are a big plus for long-term reliability.
  • Comfortable Operation: Good ergonomics make it enjoyable for longer mowing sessions.

Considerations:

  • Higher price point than some stamped-deck competitors, but justified by the fabricated deck.
  • The entry-level Z242F has a standard seat, so consider upgrading for maximum comfort if your yard is bumpy.

2. Cub Cadet Ultima Series ZT1 42

The Cub Cadet Ultima ZT1 42 has rapidly gained popularity for its combination of features, build quality, and competitive pricing, particularly for residential users.

Key Features:

  • Engine: Typically a Cub Cadet (Kohler) KT7000 Series V-twin engine (22 HP).
  • Mower Deck: 42-inch fabricated (welded) deck, similar to Husqvarna’s offering in terms of durability.
  • Transmission: Dual Hydro-Gear EZT-2200 hydrostatic transmissions, known for their smooth operation and durability in residential applications.
  • Frame: Continuous tubular steel frame, providing excellent rigidity and strength.
  • Comfort: High-back adjustable seat with armrests, rubber floor mats for vibration dampening, and lap bars with comfortable grips.
  • Open Frame Design: Allows for easy access for maintenance and cleaning.

Strengths:

  • Excellent Value: Offers a fabricated deck and robust frame at a very competitive price point.
  • Comfort-Oriented: Designed with operator comfort in mind, reducing fatigue.
  • Serviceability: The open frame and removable floor pan make maintenance access easy.

Considerations:

  • While the Cub Cadet engine is reliable, some users might prefer a Kawasaki.
  • Check local dealer support for parts and service.

3. John Deere Z335M (Accel Deep™ Deck)

John Deere’s Z300 series is their entry-level residential zero-turn line. The Z335M offers a good balance of features for its price.

Key Features:

  • Engine: John Deere branded V-twin engine (20 HP), manufactured by Briggs & Stratton.
  • Mower Deck: 42-inch Accel Deep™ stamped steel deck. While stamped, John Deere’s design focuses on airflow for excellent cutting quality, especially with mulching.
  • Transmission: Hydro-Gear EZT-2200 hydrostatic transmissions.
  • Comfort: Adjustable high-back seat, ergonomic controls, and comfortable steering levers.
  • Frame: Welded steel frame.

Strengths:

  • Cut Quality: The Accel Deep deck design is praised for its superior cut quality and clean discharge.
  • Brand Reputation: John Deere’s widespread dealer network and reputation for quality.
  • Maneuverability: Very responsive steering.

Considerations:

  • Stamped Deck: While a good stamped deck, it doesn’t offer the same long-term durability as a fabricated deck.
  • Engine: Briggs & Stratton engine is solid, but again, some prefer Kawasaki or Kohler.
  • Generally a bit pricier for the equivalent features compared to some competitors.

4. Toro TimeCutter MyRIDE® MX4275 (MyRIDE® Suspension)

Toro’s TimeCutter series is well-regarded, and the MX4275 stands out with its unique suspension system.

Key Features:

  • Engine: Toro-branded Commercial V-Twin engine (22 HP), often built by Kohler.
  • Mower Deck: 42-inch fabricated (welded) deck for enhanced durability.
  • Transmission: Dual Hydro-Gear EZT hydrostatic transmissions.
  • MyRIDE® Suspension System: This is the most distinctive feature, offering a suspended operator platform that floats over bumps and rough terrain, significantly improving ride comfort.
  • Smart Speed® Control System: Allows selection of three ground speed ranges (trim, tow, mow) for optimal control.

Strengths:

  • Unmatched Ride Comfort: The MyRIDE® suspension system drastically reduces fatigue, especially on uneven lawns.
  • Fabricated Deck: Durable and high-performance deck.
  • Smart Speed®: Great for precise trimming or efficient mowing in open areas.

Considerations:

  • Price: The MyRIDE® system adds to the cost, making it one of the more expensive 42-inch options.
  • The suspension adds some complexity and weight.

5. Troy-Bilt Mustang Z42

The Troy-Bilt Mustang Z42 is often an entry-level, budget-friendly option that still offers decent performance for smaller to medium-sized yards.

Key Features:

  • Engine: Typically a Briggs & Stratton Intek V-twin engine (20-22 HP).
  • Mower Deck: 42-inch stamped steel deck.
  • Transmission: Dual Hydro-Gear EZT hydrostatic transmissions.
  • Frame: Durable steel frame.
  • High-back seat for comfort.

Strengths:

  • Affordability: One of the most budget-friendly 42-inch zero-turns, making it accessible.
  • Good for Flat Yards: Performs well on relatively flat properties.

Considerations:

  • Stamped Deck: Less durable than fabricated decks and may not handle tougher conditions as well.
  • Comfort: While it has a high-back seat, it may not offer the same level of comfort or vibration dampening as higher-end models.
  • Best suited for smaller, flatter yards without extensive obstacles.

Factors to Consider When Choosing:

  • Yard Size and Terrain: For 0.5-2 acres, especially with obstacles, a 42-inch zero-turn is efficient. For very bumpy terrain, consider models with suspension (like the Toro MyRIDE).
  • Deck Type:
    • Fabricated (Welded) Decks: More durable, better airflow for cutting/bagging, typically found on higher-end residential or commercial-grade mowers. Last longer.
    • Stamped Decks: More economical, good for general residential use, but can be less durable and sometimes struggle with airflow in very tall/dense grass.
  • Engine Horsepower: Higher HP generally means better performance in thick grass or when using attachments, and a longer engine lifespan.
  • Transmission: Hydro-Gear EZT-2200 is a standard and reliable residential transmission. Some higher-end models might use slightly more robust units.
  • Comfort and Features: Consider seat quality, armrests, cup holders, and control ergonomics if you have long mowing sessions.
  • Brand and Dealer Support: Access to parts, service, and knowledgeable dealers can be crucial.
  • Budget: Prices vary significantly based on features and build quality.

Recommendation:

For the best blend of durability, cutting performance, and value in the 42-inch category, models with a fabricated deck like the Husqvarna Z242F or the Cub Cadet Ultima ZT1 42 are generally the strongest recommendations. If ride comfort is a top priority and budget allows, the Toro TimeCutter MyRIDE® MX4275 is an excellent choice.

Best 42-Inch Zero Turn Mower: Common Problems and Solutions

42-inch zero-turn mowers are popular for their speed, maneuverability, and ability to cut down mowing time significantly. However, like all power equipment, they can encounter issues. Understanding these common problems and their solutions can help owners quickly diagnose and resolve issues, minimizing downtime and extending the life of their mower.

1. Engine Starting Problems

This is one of the most common complaints across all types of mowers.

Symptoms:

  • Engine cranks but won’t start.
  • Engine turns over slowly.
  • No response when turning the key/pushing the button.

Root Causes:

  • Dead/Weak Battery: Most common cause, especially after winter storage.
  • Bad Spark Plug: Fouled, damaged, or improperly gapped.
  • Clogged Fuel System: Stale fuel, clogged fuel filter, dirty carburetor, or clogged fuel lines.
  • Safety Switches: Faulty seat, PTO, or neutral safety switches preventing the engine from cranking.
  • Faulty Starter/Solenoid: Electrical component failure.

Solutions:

  1. Battery Check:
    • Test battery voltage (should be 12.6V or higher). Charge if low. Clean corroded terminals. Replace if it doesn’t hold a charge.
  2. Spark Plug Inspection:
    • Remove the spark plug, clean it, inspect for damage, and check the gap. Replace if necessary.
  3. Fuel System Maintenance:
    • Drain old fuel and replace with fresh, stabilized gasoline. Replace the fuel filter.
    • For carburetor issues, try a fuel system cleaner; if that fails, the carburetor may need cleaning or rebuilding.
  4. Safety Switch Bypass (for testing ONLY, not operation):
    • Consult your mower’s manual to locate safety switches. Temporarily bypass them only for diagnostic purposes to see if they are the fault. Never operate the mower with safety switches bypassed.
  5. Starter/Solenoid Test:
    • If the engine clicks but doesn’t turn over, test the starter solenoid. If no click, test the starter motor. Replace faulty components.

2. Uneven Cut or Poor Mowing Performance

One of the most frustrating issues, especially when you expect a perfect lawn.

Symptoms:

  • Streaks of uncut grass.
  • Scalping patches of lawn.
  • Uneven cutting height across the deck.
  • Excessive clumping or poor discharge.

Root Causes:

  • Dull/Damaged Blades: The most frequent cause.
  • Improper Deck Leveling: Deck is not parallel to the ground.
  • Incorrect Tire Pressure: Uneven tire pressure, especially in the rear.
  • Clogged Mower Deck/Discharge Chute: Buildup of wet grass.
  • Spindle Issues: Worn or bent spindle shafts.
  • Engine RPM too Low: Not enough blade tip speed for effective cutting.

Solutions:

  1. Blade Maintenance:
    • Sharpen or replace dull blades. Inspect for bends or damage. Always use balanced blades.
  2. Deck Leveling:
    • Consult your owner’s manual for the specific procedure to level your mower deck. This usually involves adjusting nuts or turnbuckles at specific points.
  3. Check Tire Pressure:
    • Inflate all tires to the pressure recommended in your manual. Ensure pressure is consistent.
  4. Clean Mower Deck:
    • Clean the underside of the deck and discharge chute after each use to prevent buildup.
  5. Inspect Spindles:
    • Manually spin each blade. If there’s excessive wobble or noise, the spindle may be bent or have worn bearings. Replace as needed.
  6. Check Engine RPM:
    • Ensure the engine is running at wide open throttle when mowing for optimal blade speed.

3. Loss of Drive Power / Hydrostatic Transmission Issues

Zero-turn mowers rely on their hydrostatic transmissions for movement, and problems here can be significant.

Symptoms:

  • Mower moves slowly or not at all.
  • One wheel moves, the other doesn’t.
  • Whining or grinding noises from the transmission.
  • Mower creeps even when levers are in neutral.

Root Causes:

  • Low/Contaminated Hydrostatic Fluid: Critical for proper operation.
  • Air in the Hydrostatic System: Can cause spongy or no drive.
  • Loose/Worn Drive Belt: The belt connecting the engine to the transmissions.
  • Faulty Hydrostatic Pump/Motor: Internal component wear or failure.

Solutions:

  1. Fluid Check:
    • Check the hydrostatic fluid level and condition (refer to your manual for type and location, usually reservoirs near the rear wheels). Top off or change fluid and filters as recommended.
  2. Purge Air:
    • Most zero-turns have a “purging” procedure to remove air from the hydro system (e.g., disengaging bypass valves, moving levers forward/reverse slowly with wheels off ground). Follow your manual’s instructions.
  3. Inspect Drive Belt:
    • Check the belt from the engine to the hydro pumps. Ensure it’s tight, free of cracks, and not slipping. Adjust tension or replace if worn.
  4. Professional Service:
    • If these steps don’t resolve the issue, internal transmission problems usually require a qualified technician for diagnosis and repair/replacement.

4. Excessive Vibration

While some vibration is normal, excessive shaking can indicate a serious problem.

Symptoms:

  • Strong vibrations felt through the seat or controls.
  • Unusual rattling or buzzing sounds.

Root Causes:

  • Unbalanced/Bent Blades: Most common culprit.
  • Worn Spindle Bearings: Allowing the blade to wobble.
  • Loose Hardware: Bolts on the engine, deck, or frame.
  • Engine Imbalance: Internal engine issue.

Solutions:

  1. Blade Inspection:
    • Remove blades and check for bends or significant damage. Use a blade balancer to ensure they are properly balanced. Replace any bent blades.
  2. Check Spindles:
    • With the mower off, try to wiggle the blades up and down. Excessive play indicates worn spindle bearings. Replace the spindle assembly if needed.
  3. Tighten All Bolts:
    • Check all accessible bolts on the engine, mower deck, and frame. Tighten to spec.
  4. Professional Diagnosis:
    • If vibration persists and blades/spindles are fine, it might be an engine issue that requires a mechanic.

5. Engine Overheating

Overheating can lead to severe engine damage if not addressed quickly.

Symptoms:

  • Temperature warning light (if equipped).
  • Engine smoking or losing power.
  • Engine shutting down.

Root Causes:

  • Clogged Cooling Fins/Screens: Accumulation of grass, dirt, or debris around the engine and cooling fins.
  • Low Engine Oil: Oil helps dissipate heat.
  • Fan Issues: Broken or ineffective cooling fan.
  • Overloading the Engine: Mowing very tall, wet grass at too high a speed.

Solutions:

  1. Clean Cooling System:
    • Regularly clean all debris from around the engine, particularly the cooling fins, air intake screens, and oil cooler (if present). Use compressed air.
  2. Check Oil Level:
    • Ensure engine oil is at the proper level and is clean. Change oil and filter as recommended.
  3. Inspect Fan:
    • Check the engine’s cooling fan for damage or obstruction.
  4. Adjust Mowing Technique:
    • Mow at a slower speed in heavy growth, and raise the cutting height if the grass is very tall or wet.

6. Electrical Problems (Beyond Starting)

Symptoms:

  • Lights not working.
  • PTO not engaging.
  • Hour meter or other dashboard indicators not functioning.

Root Causes:

  • Blown Fuses: Simple but overlooked.
  • Loose/Corroded Wiring: Especially common in outdoor equipment.
  • Faulty Switches: PTO switch, light switch, etc.

Solutions:

  1. Check Fuses:
    • Locate the fuse box (refer to your manual) and check all fuses. Replace blown ones with the correct amperage.
  2. Inspect Wiring:
    • Visually inspect all accessible wiring for cuts, chafing, or corrosion. Clean connections and repair damaged wires.
  3. Test Switches:
    • Use a multimeter to test switch continuity. Replace any faulty switches.

Preventive Maintenance is Your Best Solution

Many of these problems can be avoided with consistent preventive maintenance:

  • Read Your Manual: It contains specific maintenance schedules, fluid types, and troubleshooting steps for your exact model.
  • Regular Cleaning: Keep the entire mower clean, especially the deck, engine area, and cooling fins.
  • Seasonal Tune-Up: Perform or have a professional perform a tune-up annually (change oil, filters, spark plug, sharpen blades).
  • Check Fluids: Regularly check engine oil and hydrostatic fluid levels.
  • Inspect Belts: Check all drive belts for cracks, fraying, or looseness.
  • Lubricate: Grease all designated zerks and pivot points as recommended.
  • Use Fresh Fuel: Use high-quality, fresh gasoline, and add a fuel stabilizer, especially during storage.

By understanding these common issues and implementing a proactive maintenance routine, you can ensure your 42-inch zero-turn mower remains a highly efficient and reliable tool for maintaining your lawn.