1. Product Overview
This manual provides instructions for the installation and maintenance of 20 SECOND SOAP replacement parts designed for John Deere Z335E and Z355E Zero Turn Mowers. These parts are intended to maintain the performance and longevity of your equipment.
2. Safety Information
- Always turn off the mower engine and remove the spark plug wire before performing any maintenance or part replacement.
- Allow the engine and all components to cool down before handling to prevent burns.
- Wear appropriate personal protective equipment, such as gloves and eye protection.
- Refer to your original John Deere mower owner's manual for specific safety procedures and detailed instructions for your model.
- Dispose of old parts and fluids responsibly according to local regulations.
3. Package Contents
Your package includes a set of replacement parts for your John Deere Zero Turn Mower. This typically includes:
- 2 x Air Filters
- 2 x Fuel Filters

Image: Contents of the replacement parts package, showing two air filters and two fuel filters.
4. Setup and Installation
The following are general steps for replacing the air and fuel filters. Always consult your specific John Deere Z335E or Z355E owner's manual for detailed, model-specific instructions and diagrams.
4.1. Air Filter Replacement
- Ensure the mower is turned off, the engine is cool, and the spark plug wire is disconnected.
- Locate the air filter housing, typically found near the engine.
- Open or unlatch the air filter housing cover.
- Carefully remove the old air filter. Note its orientation.
- Clean any debris from inside the air filter housing.
- Insert the new air filter, ensuring it is seated correctly.
- Close and secure the air filter housing cover.
4.2. Fuel Filter Replacement
- Ensure the mower is turned off, the engine is cool, and the spark plug wire is disconnected.
- Locate the fuel filter, usually an inline filter between the fuel tank and the carburetor.
- Place a suitable container beneath the fuel filter to catch any spilled fuel.
- Use pliers to pinch the fuel lines on both sides of the filter to minimize fuel leakage.
- Loosen the clamps securing the fuel lines to the old filter and carefully remove the lines.
- Remove the old fuel filter.
- Install the new fuel filter, ensuring the arrow on the filter points in the direction of fuel flow (towards the engine).
- Reconnect the fuel lines and secure them with the clamps.
- Remove the pinching pliers from the fuel lines.
- Wipe up any spilled fuel and dispose of it properly.
5. Operating Instructions (Post-Installation)
After replacing the parts:
- Reconnect the spark plug wire.
- Start the mower and allow it to run for a few minutes.
- Check for any fuel leaks around the new fuel filter. If leaks are present, turn off the engine immediately and re-check connections.
- Listen for any unusual engine noises or observe any changes in performance. If issues persist, refer to the troubleshooting section or consult a qualified technician.
6. Maintenance
Regular maintenance of your mower's filters is crucial for optimal performance and engine longevity. Refer to your John Deere owner's manual for recommended service intervals. General guidelines include:
- Air Filter: Inspect the air filter regularly (e.g., every 25 operating hours or seasonally) and replace it if it appears dirty, clogged, or damaged. A dirty air filter can reduce engine power and increase fuel consumption.
- Fuel Filter: Replace the fuel filter annually or every 100 operating hours, or more frequently if fuel quality is poor or if you notice engine performance issues related to fuel delivery.
7. Troubleshooting
If you encounter issues after replacing the filters, consider the following:
- Engine not starting or running poorly:
- Ensure the fuel filter is installed with the correct flow direction.
- Check for any kinks or blockages in the fuel lines.
- Verify that the air filter housing is properly sealed.
- Confirm the spark plug wire is securely connected.
- Fuel leaks:
- Tighten all fuel line clamps around the fuel filter.
- Inspect fuel lines for cracks or damage.
If problems persist, it is recommended to consult a certified John Deere service technician.
8. Specifications
- Brand: 20 SECOND SOAP
- Compatible Mower Models: John Deere Z335E, John Deere Z355E Zero Turn Mowers
- Part Type: Air Filter, Fuel Filter
- ASIN: B0DPTJDZ5L
9. Warranty and Support
For information regarding product warranty or technical support, please contact the manufacturer, 20 SECOND SOAP, through the retailer where the product was purchased. Keep your purchase receipt as proof of purchase.





