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John Deere – Z315E 42 in. 20 HP GAS Dual Hydrostatic Zero-Turn Riding Mower


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  • Mow up to 2 acres
  • 20 HP* (14.9 kW) V-Twin engine
  • 42-in. (107 cm) Accel Deep™ Mower Deck
  • Maximum forward speed 7 mph (11.2 km/h) with 3-gal. (13.6-litre) fuel tank
  • 3-year/200-hour bumper-to-bumper warranty**


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Smooth and powerful V-twin engine

20-hp (14.9-kW) engine20-hp (14.9-kW) engine


Rear engine guardRear engine guard

A 20-hp (14.9-kW) V-twin engine provides plenty of power and torque to handle tough mulching, mowing, and bagging conditions:

  • V-twin cylinder design for greater torque, lower vibration, and improved sound quality
  • Full-pressure lubrication and cast-iron sleeves to extend engine life
  • Engine model 40EXi
  • Rear engine guard to protects the engine from damage
Engine oil check/fill tube and oil-drain tubeEngine oil check/fill tube and oil-drain tube


Replaceable oil filter and fuel filterReplaceable oil filter and fuel filter
Cartridge air filterCartridge air filter

Simplify maintenance with oil-drain tube and easy-to-access air, fuel, and oil filters. Oil drain tube can be opened without tools and used to direct the used oil into a catch pan.


Get an even cut with the 42-in. (107-cm) Accel Deep™ (42A) Mower Deck

Z315E ZTrak™ with 42A Mower DeckZ315E ZTrak™ with 42A Mower Deck


42A Mower Deck42A Mower Deck

The 42-in. (107-cm) Accel Deep Mower Deck is a stamped-steel, deep, flat-top design that delivers excellent cut quality, productivity, cleanliness, durability, and versatility. Optimal performance and dispersion of clippings is provided, even at faster mowing speeds or in tall grass:

  • 4.97-in. (12.6-cm) deep throughout the entire deck shell for optimum mowing, mulching, and bagging performance
    • Optional MulchControl™ system provides superior mulching performance and versatility
  • Stamped-steel design eliminates sharp edges and corners where material can build up and diminish mowing performance
  • Mower deck suspended from the vehicle for a smooth and level cut
    • Adjustable mower wheels, positioned just above ground level, help reduce scalping
  • 0.25-in. (6.4-mm) cut-height increments allow the mower to be set at the desired cut height
  • Compatible with efficient 6.5-bu (230-L) two-bag cut-and-throw material collection system
42A Mower Deck top (shown with optional MulchControl)42A Mower Deck top (shown with optional MulchControl)


42A Mower Deck underside (shown with optional MulchControl)42A Mower Deck underside (shown with optional MulchControl)

Deep mower-deck stamping gives excellent cut quality. It allows the cut and suspended material room to exit the deck without getting recut:

  • Reducing the amount of recutting enables more power to be used to cut incoming grass, which greatly improves mower capacity.
    • Helps maintain excellent cut quality at faster mowing speeds
  • Clean flow of material out of discharge area prevents cut material from interfering with cutting the incoming grass, making it possible for the blades to cut incoming material cleanly.
  • Even in mulching mode, cut evenness is improved compared to other designs because the additional depth allows for continuous circulation, optimal recutting, and an even distribution of clippings.
Side-discharge chute on Accel Deep 42A Mower DeckSide-discharge chute on Accel Deep 42A Mower Deck

Deep mower-deck stamping gives high productivity, which gets the job done fast. It allows the cut and suspended material room to exit the deck quickly, reducing the amount of recutting so more power is available to process incoming grass:

  • Greatly improves the mower’s capacity to maintain excellent mowing performance in difficult mowing conditions and at higher speeds

Large discharge opening is both high and wide to handle more material:

  • Gives a smooth, even discharge of clippings at all mowing speeds
  • Reduces the chance of plugging, especially important when operating in wet, thick, or dense grass and when bagging
  • Cut-and-throw chute has a large, optimized inlet which aids in collecting material by using airflow from the large deck opening
Accel Deep 42A Mower DeckAccel Deep 42A Mower Deck

The flat-top shape of the deck stamping is optimal for keeping itself and the operator clean:

  • There are few places to catch and hold material on the top and underneath the deck.
    • Top of deck stays cleaner, reducing time and effort needed for cleaning and service
    • Underside of deck is self-cleaning to maintain optimum performance without build-up of material to interfere with the flow of air and clippings
    • Less need to clean and remove build-up of material from underside deck
  • The depth of the Accel Deep Mower Deck minimizes the amount of material that escapes from the front of the deck
    • Limited amount of material to drift onto the operator and mower deck
    • Even flow of material discharged out the chute, less recutting results in larger pieces that are less likely to end up on the operator
    • Mulching prevents the discharge of material completely and MulchControl makes mulching a practical solution for most mowing situations.

Cleaning a mower deck, both top and bottom, is one of the most frequent maintenance activities:

  • The flat-top design reduces places for material to build up and makes material that does collect easy to remove.
Mower wash portMower wash port


Mower wash port with hose connectorMower wash port with hose connector

A wash port is provided to make cleaning the underside of the mower deck easy.

  • Hose connector is included with the mower deck.
MulchControl baffle openMulchControl baffle open


MulchControl baffle closedMulchControl baffle closed

MulchControl is an innovative, simple design that is easy to use and maintain:

  • The MulchControl attachment includes baffles to control the flow of material under the deck.
    • When the MulchControl baffle is open, most of the material passes through the discharge opening.
    • When the MulchControl baffle is closed, the material stays within the deck and gets chopped into mulch and deposited in the turf.
42A Mower underside (shown with optional MulchControl)42A Mower underside (shown with optional MulchControl)


Mower deck wheels are double capturedMower deck wheels are double captured

The 42A Mower Deck has strong spindle pockets, to keep the blades aligned, even after years of tough service:

  • Ribs in the deck shell add strength where it is needed.
  • The 42A has a 16 percent heavier overall weight than the Edge™ Xtra 42-in. (107-cm) Mower Deck that it replaces.

Mower wheels are double captured:

  • Provides greater strength and durability for longer, trouble-free life.
  • Single-bolt adjustment makes setting wheels to the correct height for the cutting height quick and easy.

Low-tension belt-drive design reduces the side load on the engines lower bearing and mower deck bearings for longer life.

Rolled outer edge of the deck provides extra strength and protection.

Dual-stage E-coat and powder-paint coatings provide extra protection from rust.

Rear MulchControl baffle (A) that must be removed for baggingRear MulchControl baffle (A) that must be removed for bagging


Rear MulchControl baffle removed to allow for chute installationRear MulchControl baffle removed to allow for chute installation

The 42A Mower Deck is designed for maximum versatility, providing the greatest ease in changing from one mower discharge mode to another:

  • With the optional MulchControl system installed (along with the special mulching blades), changing from side discharge to mulching or vice versa is done with the simple flip of a lever.
  • The cut-and-throw rear bagger can be used with MulchControl installed by removing the rear MulchControl baffle (A) before installing the bagger chute. The baffle is held in place with two carriage bolts. To return to mulching, the chute needs to be removed and the baffle replaced.

The MulchControl system for the 42A Mower Deck is an optional field-installed attachment and makes mulching practical for many mowing situations because it not only does an excellent job of mulching, but it also allows the mower to be easily converted for times when it is more desirable to side discharge or collect the lawn material. Advantages of mulching grass clippings include:

  • A beautiful looking lawn
  • Grass clippings not blown onto the operator, driveways, or flower beds
  • Less fertilizer use
  • Elimination of the effort needed to dispose of clippings
MulchControl handleMulchControl handle
  • The MulchControl handle is located on top of the mower deck and used to open and close the discharge baffle.
    • The operator is required to get off the machine in order to engage or disengage mulch mode.
  • Changing from mulching to side discharge or vice versa takes only a few seconds.

MulchControl is well-suited to the following mowing situations:

  • Usually mulch, but side discharge when grass gets too long
  • Usually side-discharge, but would like to be able to close the chute to control clippings
  • Always mulch a main lawn, but often side discharge secondary lawns
  • Bag clippings, but want to go farther before emptying bags

While in the side-discharge mode, MulchControl still mulches about one third of the material. Therefore, the side-discharge mode is essentially a partial-mulch mode. This can be an advantage when side discharging or bagging, as it helps to reduce the amount of material being discharged. Other times this could work as a disadvantage:

  • When cutting strong southern grasses, such as Zoysia and Bermuda
  • When cutting in wet, high-growth conditions, such as those found in the Pacific Northwest United States
  • When optimum bagging and lawn cleanup is desired
6.5-BU (230-L) REAR BAGGER
Z315E equipped with optional rear baggerZ315E equipped with optional rear bagger

An optional 6.5-bu (230-L) cut-and-throw rear bagger material collection system (MCS) is available for use with the 42-in. (107-cm) Accel Deep Mower. It provides an efficient means of collecting grass clippings and leaves.

The hopper design provides modern styling, great bagging performance, cleaner operation, and easy-to-empty bags:

  • 6.5-bu (230-L) capacity
  • Easy-to-attach lower chute
  • Air exhaust duct
  • Convenient spring-latch
  • Airflow fill indicator
  • Quik-Tatch™ mounting
  • Sealed hopper top
  • Loose-knit bags available
Mower blades shipped with the rear baggerMower blades shipped with the rear bagger

High-lift bagging blades are included with the chute. They provide optimum performance when bagging in difficult conditions, such as when the grass is moist, dense, or long:

  • High-lift bagging blades also work well when side discharging material.

Mulching blades are included with the MulchControl attachment. They can be used for mulching, side discharging, and bagging in most conditions.

Mower blade use chart

 Mode(s) of operation  Mower blade
 Side discharging mode only  Side-discharge blade (shipped with mower)
 Bagging mode only  Bagging blade (shipped with rear bagger chute)
 Mulching mode only  Mulching blade (shipped with MulchControl)
 Side discharge and mulching  Mulching blade (shipped with MulchControl)
 Side discharge and bagging  Bagging blade (shipped with rear bagger chute)
 Side discharge, mulching, and bagging  Mulching blade (shipped with MulchControl)

Comfortable ride delivered by operator station with adjustable controls and seat position

Z315E operator stationZ315E operator station


Color-coded controls are easy to identifyColor-coded controls are easy to identify

The operator station is designed for operator comfort and convenience when operating all controls:

  • Excellent visibility forward and to the trim side of the deck makes operation easy and comfortable for the operator.
  • Controls are color coded for easy identification.
  • Translucent fuel tank displays fuel level.
  • Twin-lever controls adjust, using cut-height pin/socket, for convenience and operator comfort.
  • A shock absorber dampens motion control lever movement to give smooth operation.
Comfortable E-Series seatComfortable E-Series seat

The E-Series mowers have a cut-and-sewn seat with:

  • 18-in. (46-cm) of height
  • Thick foam to soften bumps
  • Side-bolstering to stabilize the operator on uneven terrain
  • Embroidered John Deere logo
  • Optional armrests
Seat suspension springsSeat suspension springs


Seat fore-aft adjustmentSeat fore-aft adjustment

Two steel coil suspension springs under the seat absorb shocks when traveling over rougher areas to provide a smoother ride. The seat fore-aft position can also be changed without tools.

Cup holderCup holder

The cup holder is designed to hold common cup sizes securely.

Open storage compartmentOpen storage compartment

A storage compartment provides a place for the operator to keep safety equipment, a cell phone, etc.

Comfortable operator's platformComfortable operator’s platform

Large foot platform helps the operator remain comfortable and secure:

  • Volcano grips give a secure grip.
  • Raised footrests at the front of the platform provide a comfortable area for the operator’s feet.
  • An attractive floor mat is optional on E-Series models.

Convenient machine service includes 3-year or 200-hour bumper-to-bumper warranty

Service interval decalService interval decal

A convenient service interval decal provides basic maintenance information. It provides a quick reference for keeping recommended service up to date.

Example product identification number (PIN) label with QR codeExample product identification number (PIN) label with QR code

John Deere riding lawn mowers are supported by owner information web pages that include links to:

  • Safety and how-to videos
  • Operator’s manuals
  • Parts catalog
  • Maintenance reminder sheets
  • Attachments
  • Warranty statements

To speed access to owner information web pages, a QR code is printed onto a PIN label located under the seat on the battery cover. Since each vehicle model has its own web page, the links are specific to the owner’s model. The QR code also includes the vehicle’s unique PIN which allows for additional customization of the owner information web page in the future.

Footrest easily removed for access to mowerFootrest easily removed for access to mower

The footrest area is hinged and easily raised for service to mower deck:

  • No tools are needed to lift footrest
  • Easy to clean grass off the top of the mower
  • Provides convenient access to the mower drive
Replaceable oil filter and fuel filter (shown on Z325E)Replaceable oil filter and fuel filter (shown on Z325E)

The engines are easy to service, including changing the oil and the oil filter and servicing the air filter.

Accel Deep™ Mower DeckAccel Deep™ Mower Deck


Flip-up cover for easy spindle-pocket accessFlip-up cover for easy spindle-pocket access

Accel Deep Mower Decks have several features that make them easy to service:

  • Flat-top design minimizes places for debris to collect.
  • Spring-loaded, flip-up belt guards make removing debris easy.
  • Provision is provided for a standard, 3/8-in. (9.5-mm) ratchet wrench to be used for releasing belt tension when removing the drive belt.

Tie-down locations are provided for convenience and safety when trailering the machine.


Limited bumper-to-bumper warranty for new turf and utility equipment (U.S. and Canada only):

  • 36 months or 200 hours, whichever comes first


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