John Deere Z320r : Parts, Manuals, Diagrams, Specs

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John Deere Z320r

The John Deere Z320R is a zero-turn mower designed for efficient and comfortable lawn maintenance. It features a powerful 21.5 HP (16.0 kW) V-twin engine with a 726 cc displacement, providing ample power for tough mowing tasks. The mower is equipped with a 42-inch (107 cm) Accel Deep mower deck, capable of mowing up to 2 acres.

The Z320R offers a forward speed of up to 7 mph (11.3 km/h), allowing for quick coverage of large areas. It comes with 11×6-5 front caster tires and 18×8.5-8 drive tires, providing good traction and maneuverability. The mower features a high-back seat with armrests, measuring 20 inches (51 cm) in height, ensuring operator comfort during extended use.

This model includes several safety features, such as an operator presence system and park brake interlock. While it does not have a rollover protective structure (ROPS), it has a slope operating limit of 13 degrees, or 10 degrees when using a Material Collection System.

The Z320R’s dimensions include a wheelbase of 49.4 inches (1255 mm), an overall length of 75.4 inches (1915 mm), and a width of 50.4 inches (1280 mm) with the mower attached. It weighs 572 lb (260 kg) and stands 43.3 inches (1100 mm) tall.

Additional features include LED lights, floor mats, and covered tool storage. The mower also offers a convenient foot deck lift for adjusting cutting height while mowing. Optional attachments include a MulchControl system for mulching capabilities and a collection system for gathering clippings.

The John Deere Z320R combines speed, comfort, and versatility, making it a suitable choice for homeowners with larger lawns or those seeking a more efficient mowing solution.

John Deere Z320r Parts

The John Deere Z320R is equipped with a powerful 21.5 HP (16.0 kW) V-twin engine with a 726 cc displacement. Key engine parts include:

  • Oil filter (full flow, replaceable)

  • Air cleaner

  • Fuel filter

  • Spark plugs

  • Engine cooling fins and intake screens

The Z320R features a hydrostatic transmission system. Important parts include:

  • Transaxle housings (left and right side)

  • Drive belts

  • Hydraulic fluid and filter

The 42-inch (107 cm) Accel Deep mower deck is a crucial component. Parts related to the deck include:

  • Mower blades

  • Spindles

  • Belt tensioners

  • Deck lift system (foot-operated)

Key electrical components for the Z320R include:

  • Battery

  • LED lights

  • Wiring harness

  • Hour meter

  • Key switch

Important parts in the operator area:

  • Motion control levers (left and right)

  • Mower engagement switch

  • Throttle control lever

  • Choke lever (if equipped)

  • Seat (high-back with optional armrests)

  • Floor mats

The Z320R has a fuel capacity of 11.5 U.S. gallons. Key parts include:

  • Fuel tank

  • Fuel cap

  • Fuel lines

  • Fuel pump

The mower uses:

  • 11×6-5 front caster tires

  • 18×8.5-8 drive tires

Other important components include:

  • Safety switches and interlocks

  • Covered tool storage compartment

  • MulchControl system (optional)

  • Material Collection System (optional)

When ordering parts for your John Deere Z320R, always provide the product identification number (PIN) to ensure you receive the correct components for your specific model.

John Deere Z320r Specs

The John Deere Z320R is equipped with a powerful 21.5 HP (16.0 kW) V-twin engine. It features a Kawasaki FR651V model with a displacement of 726 cc. The engine is air-cooled and designed for smooth operation with lower vibration and improved sound quality.

This zero-turn mower comes with a 42-inch (107 cm) Accel Deep™ Mower Deck. It offers a cutting width of 42 inches and can be easily converted for mulching or collecting with optional kits. The deck lift is foot-operated, allowing for convenient height adjustments while mowing.

The Z320R can mow up to 2 acres and has a forward speed of up to 7 mph (11.3 km/h). The reverse speed reaches 3.5 mph (5.6 km/h). It features a zero-turn radius for excellent maneuverability around obstacles.

The mower uses a hydrostatic transmission system with twin levers for speed and direction control. This setup provides smooth operation and quick directional changes.

The front caster tires measure 11×6-5, while the drive tires are 18×8.5-8, providing good traction and stability.

The Z320R boasts a 20-inch (51 cm) high-back seat with armrests for operator comfort. Additional features include LED lights, floor mats, and covered tool storage.

The mower has a wheelbase of 49.4 inches (1255 mm), an overall length of 75.4 inches (1915 mm), and a width of 50.4 inches (1280 mm) with the mower attached. It stands 43.3 inches (1100 mm) tall and weighs 572 lb (260 kg).

The Z320R has a fuel tank capacity of 3.0 U.S. gallons (11.4 L) with a translucent tank serving as a fuel gauge.

This model includes an operator presence system and park brake interlock. It has a slope operating limit of 13 degrees, or 10 degrees when using a Material Collection System.

The Z320R can be equipped with an optional MulchControl™ system for mulching capabilities and a material collection system for gathering clippings.

John Deere Z320r Prices

The John Deere Z320R zero-turn mower is available at various prices from different retailers. As of March 2025, the pricing for this model ranges from approximately £4,829 to £6,050 (excluding VAT).

Several retailers offer the Z320R at different price points:

  • Some dealers have the mower listed at £5,042.20 (including VAT)

  • Other retailers price it at £4,829.17 (excluding VAT) or £5,795 (including VAT)

  • The higher end of the price range is around £6,050 (including VAT)

Many retailers are offering discounts on the Z320R:

  • Original prices were often around £5,932, with current prices showing significant reductions

  • Discounts of up to 20% off the original price are available from some sellers

When considering the total cost, keep in mind:

  • Optional attachments like the MulchControl system or collection system may incur extra charges

  • Delivery fees might apply, though some retailers offer free delivery within certain areas

  • Installation and handover services may be included or charged separately depending on the dealer

The variation in pricing can be attributed to:

  • Different dealer locations and operating costs

  • Included accessories or features (such as rear bumpers or mulch control)

  • Current stock levels and seasonal promotions

It’s advisable to check with local John Deere dealers for the most accurate and up-to-date pricing, as prices may fluctuate and special offers may be available.

To find the most up-to-date and accurate pricing for the John Deere Z320R, consider checking the following:

  • Authorized John Deere dealers

  • Agricultural and garden equipment specialists

  • Online marketplaces specializing in lawn and garden equipment

  • Local garden centers or farm supply stores

When comparing prices, keep in mind:

  • Some retailers may offer package deals that include accessories or extended warranties

  • Prices may not include delivery or setup fees

  • Always confirm if the listed price includes VAT

As of early 2025, some retailers are offering discounts on the John Deere Z320R, with savings of up to 20% off the original price. However, prices and availability can change quickly, so it’s advisable to check with multiple sources for the most current offers.

John Deere Z320r Reviews

The John Deere Z320R zero-turn mower has received generally positive reviews from users and experts. It is praised for its performance, comfort, and time-saving capabilities.

Users report that the Z320R delivers excellent cutting quality and efficiency. The 21.5 HP V-twin engine provides ample power for tackling tough mowing conditions. The 42-inch Accel Deep Mower Deck is noted for its superior performance in mowing, mulching, and bagging.

Many reviewers highlight the significant time savings achieved with the Z320R. Some users report cutting their mowing time by up to two-thirds compared to traditional riding mowers. The zero-turn capability allows for quick maneuvering around obstacles and efficient coverage of large areas.

The Z320R receives high marks for comfort. The 20-inch high-back seat with armrests is appreciated by users, especially during longer mowing sessions. The intuitive twin lever controls for speed and direction are easy to master, even for those new to zero-turn mowers.

Reviewers appreciate the additional features of the Z320R, such as:

  • LED lights for improved visibility

  • Foot-operated deck lift for easy cutting height adjustments

  • Covered tool storage for convenience

  • Optional MulchControl system for versatile lawn care

Many users report that the Z320R is well-built and reliable. The upgraded 3-year/200-hour bumper-to-bumper warranty provides added peace of mind for buyers.

Some users note that while the Z320R excels at open area mowing, it may require more trimming work around obstacles compared to smaller mowers. A few reviewers also mention that the 3-gallon fuel tank, while an improvement over previous models, may still require refilling during longer mowing sessions.

While the Z320R is considered a premium residential zero-turn mower, most reviewers feel it offers good value for the performance and features provided. The time savings and improved mowing experience are often cited as justifying the investment.

In conclusion, the John Deere Z320R receives predominantly positive reviews, with users appreciating its performance, comfort, and time-saving capabilities. It is generally recommended for homeowners with larger lawns who prioritize efficient and comfortable mowing.

John Deere Z320r Accessories

The John Deere Z320R can be equipped with an LED light kit, which includes both forward-facing and side lights. This accessory is particularly useful for those who mow early in the morning or later in the evening, providing improved visibility in low-light conditions.

A non-slip, washable floor mat is available for the Z320R. It features the John Deere logo and is designed to protect the foot deck. The mat is resistant to chemicals commonly encountered during landscaping work, enhancing both safety and comfort.

For increased operator comfort, especially during longer mowing sessions, an armrest kit can be added to the Z320R’s high-back seat if not already included as a standard feature.

This accessory allows operators to easily raise or lower the mower deck using their foot, without having to use their hands. It’s particularly useful for quickly adjusting the deck height when encountering unexpected obstacles like tree roots or rocks.

The optional MulchControl system can be added to the Z320R, allowing for easy conversion between side discharge and mulching modes. This versatile attachment helps improve lawn care efficiency and grass clipping management.

A collection system can be added to the Z320R for gathering grass clippings and leaves. This accessory is useful for maintaining a neat lawn appearance and collecting debris.

This kit attaches to the front of the mower deck to help prevent scalping and improve the overall smoothness of the mowing job.

A 15-gallon sprayer can be attached to the Z320R, allowing for the application of fertilizers, herbicides, or other lawn care products while mowing.

A lawn sweeper attachment is available for the Z320R, capable of holding up to 17 bushels of material. It includes a brush-height adjuster with eight positions for efficient debris collection.

These accessories enhance the versatility and functionality of the John Deere Z320R, allowing owners to customize their mower for specific lawn care needs and preferences.

John Deere Z320r Mulching Kit

The John Deere Z320R zero-turn mower can be equipped with a MulchControl attachment kit, enhancing its versatility and lawn care capabilities. This kit allows users to easily switch between side discharge and mulching modes, providing flexibility in various mowing conditions.

The MulchControl kit is specifically designed for the 42-inch Accel Deep Mower Deck, which comes standard on the Z320R model. It is also compatible with several other John Deere mower models in the X300 and Z300 series.

The MulchControl system offers:

  • Easy conversion between mulching and side discharge

  • Improved grass clipping management

  • Enhanced lawn nutrition through mulching

  • Versatility for different mowing situations

The MulchControl kit can be installed on the Z320R with basic tools:

  • 15mm and 13mm sockets

  • Ratchet

  • 13mm wrench (optional)

  • Pliers

The installation process involves removing the mower deck, attaching the mulch control components, and ensuring proper functionality.

Using the MulchControl kit on your Z320R provides several advantages:

  • Reduces the need for bagging and disposal of grass clippings

  • Improves lawn health by returning nutrients to the soil

  • Allows for a cleaner appearance when desired by switching to side discharge

  • Increases mowing efficiency by reducing stops for emptying clipping bags

The MulchControl system is designed for user-friendly operation:

  • A simple lever or button (depending on the specific model) allows for quick switching between mulching and side discharge modes

  • Can be engaged or disengaged while mowing, without stopping

To ensure optimal performance of the MulchControl kit:

  • Regularly clean the underside of the mower deck

  • Inspect and replace mulching blades as needed

  • Check for proper operation of the mulch control mechanism

The John Deere Z320R MulchControl kit enhances the mower’s capabilities, providing a versatile solution for various lawn care needs and preferences.

John Deere Z320r Manual

The John Deere Z320R zero-turn mower comes with an operator’s manual that provides essential information for safe operation and maintenance.

The manual emphasizes safety as a top priority, covering topics such as:

  • Protecting children

  • Operating on slopes and near terrain hazards

  • Avoiding thrown objects

  • Preventing fires

  • Proper use of safety devices and guards

Detailed instructions are provided for:

  • Understanding and using the controls

  • Starting and stopping the engine

  • Adjusting mowing height

  • Engaging and disengaging the mower blades

  • Operating on different terrains

The manual outlines important maintenance procedures, including:

  • Daily checks and inspections

  • Oil changes and filter replacements

  • Air filter maintenance

  • Fuel system care

  • Blade sharpening and replacement

  • Deck cleaning and lubrication

A section is dedicated to helping operators identify and resolve common issues that may arise during operation.

Technical details about the Z320R are provided, including:

  • Engine specifications

  • Transmission information

  • Mower deck dimensions

  • Tire sizes

  • Electrical system details

Guidelines for proper storage during off-seasons and safe transportation of the mower are included.

Information on compatible accessories and their proper installation and use is provided.

The manual includes details about the warranty coverage and how to obtain service if needed.

John Deere Z320r V Z320m

The John Deere Z320R and Z320M are both zero-turn mowers in the Z300 series, designed for residential use. While they share many similarities, the Z320R offers some premium features that set it apart from the Z320M.

Both models are equipped with a 21.5 HP V-Twin engine, providing ample power for mowing tasks. They feature a 42-inch Accel Deep mower deck, which can be fitted with an optional MulchControl system for versatile lawn care.

:

  • 20-inch high-back seat with armrests included as standard

  • Floor mats included for improved comfort and cleanliness

:

  • 20-inch high-back seat (armrests optional)

  • Floor mats optional

:

  • LED lights included as standard

  • Covered tool storage for convenience

  • Front bumper included

:

  • LED lights optional

  • Does not include covered tool storage or front bumper

Both models offer:

  • Foot-operated deck lift

  • Hydrostatic transmission

  • Rear hitch as standard

  • Optional bagger attachment

The Z320R typically comes at a higher price point due to its additional premium features.

While both mowers offer similar core performance, the Z320R provides enhanced comfort and convenience features as standard. The choice between the two models depends on the user’s preference for these additional features and budget considerations.

John Deere Z320r Oil Filter

The John Deere Z320R uses the engine oil filter with part number AM125424. This filter is designed to provide high-quality filtration, ensuring that impurities and contaminants are removed from the engine oil to maintain optimal performance and extend engine life.

  • : The filter includes large inlet holes, a robust filtering media, and durable rubber seals to ensure consistent oil flow and effective removal of harmful particles.

  • : The media is securely bonded to metal end caps, reducing the need for frequent replacements and enhancing reliability.

  • : Rubber gaskets provide a tighter seal compared to plastic alternatives, minimizing the risk of leaks.

  • : The filter is enclosed in a poly bag to prevent contamination before installation.

  • Replace the oil filter during every oil change to ensure proper engine lubrication.

  • Always use genuine John Deere parts to maintain compatibility and performance.

  • Follow the recommended maintenance schedule in your operator’s manual for oil and filter changes.

  1. Drain the engine oil completely before removing the old filter.

  2. Apply a thin layer of clean oil to the gasket of the new filter before installation.

  3. Hand-tighten the new filter until the gasket contacts the engine, then tighten an additional half turn.

  4. Check for leaks after adding new oil and running the engine briefly.

John Deere Z320r Blades

The John Deere Z320R uses a 42-inch Accel Deep mower deck, which requires specific blades depending on the desired mowing function. The following blade types are compatible with the Z320R:

  • : Designed for general mowing with side discharge functionality.

  • : Ideal for mulching grass clippings, returning nutrients to the soil.

  • : Optimized for use with a bagging system to collect clippings efficiently.

Proper maintenance of mower blades ensures optimal cutting performance and extends their lifespan. Key tips include:

  • Regularly inspect blades for damage, wear, or dullness.

  • Sharpen blades as needed to maintain a clean cut.

  • Replace blades if they are excessively worn or damaged.

To replace the blades on the Z320R:

  1. Raise the mower deck to its highest position.

  2. Use a block of wood to prevent the blade from rotating.

  3. Loosen the blade bolt using an 18mm socket or wrench.

  4. Remove the old blade and install the new one, ensuring the cutting edge faces the correct direction.

  5. Tighten the blade bolt securely.

Replacement blades for the Z320R can be purchased from authorized John Deere dealers, online retailers, or local garden equipment stores. Always confirm compatibility by referencing your mower’s model and deck size.

Maintaining sharp and properly installed blades is crucial for achieving a clean, even cut and ensuring your John Deere Z320R operates efficiently.

John Deere Z320r Bagger

The John Deere Z320R zero-turn mower can be equipped with a bagger system, also known as a Material Collection System. This attachment allows for efficient collection of grass clippings and leaves, providing a clean and manicured look to your lawn.

The bagger kit for the Z320R typically includes:

  • Hopper system

  • Mounting frame

  • Chute and tube assembly

  • Weight bracket

  • Hardware for installation

Installing the bagger on a Z320R involves several steps:

  1. Remove the existing toe guard and replace it with a new one designed for the bagger system

  2. Install braces and framing on the back of the mower

  3. Mount the hopper system onto the framing

  4. Attach the weight bracket to the mower for balance

  5. Install the chute and tube assembly

  • Efficient collection of grass clippings and leaves

  • Improved lawn appearance

  • Reduces the need for raking

  • Versatility in lawn care options

  • The bagger system adds weight to the mower, which may affect maneuverability

  • It reduces the mower’s slope operating limit from 13 degrees to 10 degrees

  • Regular emptying of the hopper is required during mowing

The bagger kit is specifically designed for the John Deere Z320R and other compatible models in the Z300 series. Always ensure you purchase the correct kit for your specific mower model.

To keep your bagger system working efficiently:

  • Clean the chute and tubes after each use to prevent clogging

  • Check for wear and tear on the hopper bags

  • Ensure all mounting hardware remains tight

FAQ


Change the oil initially after 8 hours of use, then at least once a year or more frequently in dusty conditions.


The Z320R uses John Deere Turf-Gard 10W30 oil.


Use the foot-operated deck lift to adjust the cutting height. The deck can be set between 1 inch and 4.5 inches.


The Z320R comes with a 42-inch Accel Deep mower deck.


The Z320R has a forward speed of up to 7 mph (11.3 km/h).


It uses a 21.5 HP (16.0 kW) Kawasaki FR651V V-twin engine with a 726 cc displacement.


The fuel tank capacity is 3.0 U.S. gallons (11.4 L).


Yes, a Material Collection System (bagger) is available as an optional attachment.


The Z320R typically comes with a 3-year/200-hour bumper-to-bumper warranty.


Regularly inspect blades for damage, sharpen as needed, and replace if excessively worn. Use the correct replacement blades for your model.


Yes, a MulchControl kit is available as an optional attachment for the Z320R.


Refer to your operator’s manual for specific greasing points and intervals, but generally, it’s recommended to grease key components every 25 hours of operation.


The Z320R uses a hydrostatic transmission system with twin levers for speed and direction control.


Yes, the Z320R can mow in reverse, but it’s generally recommended to avoid this for safety reasons unless absolutely necessary.


To winterize, drain the fuel or add a fuel stabilizer, change the oil, clean the mower thoroughly, and store it in a dry place. Refer to your operator’s manual for detailed instructions.