Kubota ZG127S Parts and Parts Manual PDF

Kubota ZG127s Parts

The Kubota ZG127s is a compact and versatile zero-turn mower designed for residential and commercial lawn care.

Powered by a reliable 27-horsepower gasoline engine, it features a 54-inch mower deck with adjustable cutting heights, providing efficient and precise mowing.

The zero-turn capability allows for excellent manoeuvrability, enabling the operator to navigate tight spaces with ease. The mower incorporates comfortable and ergonomic controls, ensuring a user-friendly experience.

With its durable construction and high-quality components, the Kubota ZG127s is a robust and efficient solution for achieving a well-maintained lawn in various environments.

Kubota ZG127s Parts Manual PDF


  1. Introduction: Overview of the manual, model information, and specifications.
  2. Safety Information: Guidelines and precautions for safe operation and maintenance.
  3. Exploded Views and Parts Lists: Diagrams and lists illustrating the assembly of various components, aiding in part identification.
  4. Engine Section: Details about the engine, including specifications, maintenance, and parts.
  5. Chassis and Frame: Information on the mower’s frame, chassis, and related components.
  6. Mower Deck: Details about the cutting deck, blades, belts, and related parts.
  7. Transmission and Drive System: Information on the mower’s transmission, drive belts, and associated components.
  8. Electrical System: Details on the electrical components, wiring diagrams, and troubleshooting guides.
  9. Hydraulic System (if applicable): Information on hydraulic components and systems.
  10. Steering and Controls: Details about steering mechanisms, control levers, and related parts.
  11. Wheels and Tires: Information about the wheels, tires, and related components.
  12. Maintenance Procedures: Guidelines for routine maintenance tasks, including lubrication points and intervals.
  13. Troubleshooting: Common issues and their resolutions.
  14. Parts Index: An alphabetical list of parts with page references for quick navigation.

Where to Buy

You can buy a parts manual for the Kubota ZG127S from various sources. One option is to purchase it online from platforms like eBay, where service repair manuals are available. Additionally, you can find parts diagrams and purchase parts from specific retailers such as Jack’s Small Engines.

Furthermore, you can consider contacting local equipment dealers such as Green & Sons, German-Bliss Equipment Inc., Central Jersey Equipment, and Coleman Equipment, Inc. as they may have the manual or be able to order it for you.

Kubota ZG127s Mower Deck Parts

Blades: The ZG127S typically uses three standard lift blades (Kubota part number K5617-97530) or three high-lift blades (Kubota part number K5639-92332).
Mower belt: The belt that drives the blades (Kubota part number K5639-36740).
Pulley: The pulley that the belt rides on (Kubota part number K5639-34580).
Spindles: The spindles that the blades mount to (Kubota part number K5579-34752).
Discharge chute: The chute that directs grass clippings out of the deck (Kubota part number K5618-47113

Where to Buy

The specific parts list for the Kubota ZG127S mower deck can be found through various sources. You can access the parts diagram and list from the following:

Kubota ZG127S Parts Diagrams: Websites like Jack’s Small Engines and German-Bliss provide exploded view parts diagrams for the Kubota ZG127S, which can help you identify the specific parts you need
Online Retailers: You can also consider purchasing the parts list or manual from online retailers such as eBay or the official Kubota website
Local Dealers: Contacting local equipment dealers such as Green & Sons, German-Bliss Equipment Inc., Central Jersey Equipment, and Coleman Equipment, Inc. can also be a good option, as they may have the parts list or be able to order it for you.

Selanoid Parts in a Kubota ZG127s

The solenoid in a Kubota ZG127S is a crucial electrical component that serves as a switch to transmit electrical current to the starter motor.

When the ignition key is turned, the solenoid engages the starter’s pinion gear with the flywheel of the engine, allowing the starter motor to crank the engine.

It plays a key role in the starting system of the mower. Solenoids are used in various electrical systems to control the flow of electricity, and in the case of the ZG127S, the solenoid specifically functions to initiate the starting process of the engine.

The symptoms of a faulty solenoid part in a Kubota ZG127S can include:

Clicking Noise When Starting: If the solenoid is faulty, you may hear a clicking noise when attempting to start the engine, indicating that the solenoid is not engaging the starter motor properly
Intermittent Starting Issues: An intermittent fault in the solenoid can lead to unpredictable starting behavior, where the engine may start sometimes and not others
Complete Inability to Start: A failed solenoid can result in the engine not turning over at all when the ignition is engaged
If you experience any of these symptoms, it may indicate a potential issue with the solenoid in your Kubota ZG127S.

How to Remove a Height Adjustment Knob on a Kubota ZG127s

To remove the height adjustment knob on a Kubota ZG127S mower, follow these general steps.

  1. Locate the Knob: Identify the height adjustment knob on your mower. It’s usually located on the side of the mower deck.
  2. Inspect for Locking Mechanism: Check if there is any locking mechanism or pin that needs to be disengaged before attempting to remove the knob. Some knobs have a release button or pin that needs to be pressed or pulled.
  3. Turn the Knob Counter-Clockwise: In most cases, mower height adjustment knobs are threaded and can be unscrewed. Turn the knob counterclockwise (left) to loosen and unscrew it from the adjustment shaft.
  4. Apply Lubricant (if necessary): If the knob is stuck due to dirt or rust, you may want to apply a penetrating lubricant to facilitate easier removal. Allow the lubricant to sit for a while before attempting to unscrew the knob.
  5. Use Pliers (if necessary): If the knob is stubborn and refuses to unscrew by hand, you may use pliers to grip the knob gently. Wrap the knob with a cloth to protect it from scratches and then use pliers to unscrew it.
  6. Inspect for Additional Components: Once the knob is removed, inspect the adjustment shaft for any additional components that may be present, such as washers or spacers. Keep these components in a safe place for reassembly.
  7. Store the Knob Safely: If you plan to reuse the knob, store it in a safe place. If you’re replacing the knob, have the new one ready for installation.

Kubota ZG127S Attachments

Some common attachments for zero-turn mowers like the ZG127S include:

  1. Mulching Kit: Mulching kits typically include special blades and a mulch plate. This attachment allows you to finely chop grass clippings, returning them to the lawn as natural fertilizer.
  2. Bagging System: A bagging system is useful if you prefer to collect grass clippings rather than mulching. Bags attach to the mower to collect and dispose of the clippings.
  3. Bagger Attachment: Similar to a bagging system, a bagger attachment allows you to collect grass clippings, leaves, and other debris.
  4. Roll-Over Protection System (ROPS): ROPS is a safety feature that can be added to certain mower models, providing an extra level of protection in the event of a rollover.
  5. Snow Blade or Snow Blower Attachment: Depending on your region and needs, you might have the option to attach a snow blade or snow blower to your mower for snow removal.
  6. Striping Kit: A striping kit helps create a professional-looking striped pattern on your lawn. It’s often used for aesthetic purposes.
  7. Front Bumper: Adding a front bumper can help protect the mower from potential impacts.

Kubota ZG127S Starting Problems

Here are some common troubleshooting steps you can take to identify and potentially deal with any starting problems :
  1. Check Fuel Level:
    • Ensure that there is an adequate amount of fuel in the mower’s tank. If the fuel level is low, it may prevent the engine from starting.
  2. Fuel Quality:
    • Make sure that the fuel you are using is fresh and clean. Stale or contaminated fuel can cause starting issues.
  3. Check Spark Plug:
    • Inspect the spark plug for signs of fouling, wear, or damage. A faulty spark plug can prevent the engine from starting. Replace the spark plug if necessary.
  4. Battery Condition:
    • Check the battery for a proper charge. If the battery is weak or dead, it may not provide enough power to start the engine. Charge or replace the battery as needed.
  5. Safety Interlocks:
    • Ensure that all safety interlocks are engaged. Some mowers have safety features like seat switches or brake interlocks that must be activated for the engine to start.
  6. Ignition Switch:
    • Check the ignition switch for proper functionality. If the switch is faulty, it may not send the necessary signal to start the engine.
  7. Starter Motor:
    • Inspect the starter motor for any issues. A malfunctioning starter motor may not be cranking the engine properly.
  8. Air Filter:
    • Examine the air filter for dirt or blockages. A clogged air filter can restrict airflow, affecting the engine’s performance.
  9. Fuel System Issues:
    • Check for any clogs or issues in the fuel system, including the fuel filter and fuel lines.
  10. Engine Kill Switch:
    • Ensure that the engine kill switch is not engaged. Some mowers have a safety feature that prevents starting if the engine kill switch is activated.

Kubota ZG127s Common Problems

Here are some potential problems that users have reported with various zero-turn mowers, including the ZG127S:

  1. Starting Issues:
    • Problems with the ignition system, fuel supply, or battery can lead to difficulties starting the mower.
  2. Engine Stalling:
    • Stalling can occur due to issues with the fuel system, spark plug, or other engine components.
  3. Uneven Cutting:
    • Uneven cutting may result from blade wear, deck misalignment, or an uneven tire pressure.
  4. Deck Vibration or Noise:
    • Deck-related issues, such as damaged or unbalanced blades, can cause vibration or unusual noise during operation.
  5. Hydraulic System Problems:
    • Issues with the hydraulic system may lead to steering problems or loss of control. This could be due to low hydraulic fluid levels, leaks, or pump malfunctions.
  6. Transmission Issues:
    • Problems with the transmission, such as slipping or difficulty shifting gears, can affect the mower’s performance.
  7. Battery Troubles:
    • Dead or weak batteries can cause starting issues, preventing the mower from cranking.
  8. Fuel System Troubles:
    • Clogged fuel filters, stale fuel, or issues with the carburetor can impact the fuel system’s efficiency.
  9. Belt Wear or Breakage:
    • Belts that are worn or broken can affect the mower’s performance and the blades’ ability to turn.
  10. Oil Leaks:
    • Oil leaks can occur due to damaged seals or gaskets. Regularly check for any signs of oil leaks and address them promptly.

To address these problems:

  • Regular maintenance is key. Follow the manufacturer’s guidelines for oil changes, filter replacements, and other routine maintenance tasks.
  • Keep the mower clean and inspect it regularly for signs of wear or damage.
  • If you encounter persistent issues, consult the operator’s manual for troubleshooting guidance or contact a Kubota authorized service center for professional assistance.

Kubota ZG127s – How to remove the Gas Tank

Note: Ensure the engine is cool, and disconnect the spark plug wire before starting any maintenance or repair work.

  1. Safety First:
    • Turn off the engine and allow it to cool completely.
    • Disconnect the spark plug wire to prevent accidental starting.
  2. Drain the Fuel:
    • To avoid spills, siphon or use the fuel system to drain the gas tank.
  3. Disconnect Fuel Line:
    • Locate the fuel line connected to the gas tank.
    • Disconnect the fuel line, taking care to minimize fuel spillage.
  4. Disconnect Other Components:
    • Depending on the mower’s design, there may be additional components attached to the gas tank, such as breather hoses or fuel gauge wires. Disconnect these as needed.
  5. Remove Mounting Bolts:
    • Locate and remove any mounting bolts securing the gas tank to the mower frame.
    • Some mowers have a strap or bracket securing the tank; others may have individual bolts.
  6. Lift or Slide Out the Tank:
    • Once all connections and mounting bolts are removed, carefully lift or slide the gas tank out of its mounting position.
  7. Inspect for Additional Connections:
    • Before completely removing the tank, check for any hidden connections or hoses that may still be attached.
  8. Replace or Service as Needed:
    • If you are removing the gas tank for maintenance or replacement, take this opportunity to inspect the tank for damage or signs of wear.
  9. Install the New Tank (if applicable):
    • If you are installing a new gas tank, follow the reverse of the removal steps to install the new tank securely.
  10. Reconnect Components:
    • Reconnect all hoses, wires, and components that were disconnected during the removal process.
  11. Refill with Fuel:
    • Once the gas tank is securely reinstalled, refill it with fresh fuel.