
Bobcat Company provides detailed instructions on how to replace the fuel filter on a Bobcat zero-turn mower. The process involves several steps, including checking the water separator bowl, disconnecting the electrical connector, removing the separator bowl and filter, lubricating the new O-rings, and installing the new separator bowl and filter. Additionally, it's important to prime the pre-filter and remove air from the system, as well as ensure the arrow on the pre-filter is facing the correct direction. Bobcat also offers video tutorials and step-by-step guides for replacing R-Series fuel filters on Tier 4 engines and changing fuel filters on loaders and excavators. These resources provide valuable information for maintaining and servicing Bobcat zero-turn mowers.
| Characteristics | Values |
|---|---|
| Fuel filter replacement frequency | Every 1,000 hours or annually |
| Fuel filter replacement steps | 1. Check the water separator bowl and drain if necessary |
| 2. Disconnect the electrical connector and remove the separator bowl | |
| 3. Remove the old fuel filter | |
| 4. Lubricate the new O-rings and install the separator bowl | |
| 5. Install the new fuel filter and connect the electrical | |
| 6. Clean the pre-filter and the surrounding area | |
| 7. Move the hose clamps off and remove the fuel hoses | |
| 8. Loosen the filter clamp and remove the pre-filter, noting the orientation of the arrow | |
| 9. Install the new pre-filter with the arrow facing the correct direction | |
| 10. Prime the pre-filter and remove air from the system |
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What You'll Learn

When to change the fuel filter
It is important to perform routine maintenance on your Bobcat zero-turn mower to ensure optimal performance and a prolonged lifespan. While there is no fixed timeline for changing the fuel filter, there are several indicators that it needs replacement:
- Dirty Fuel Filter: If your fuel filter appears dirty, it may be clogged with debris, reducing fuel flow to the engine. This can lead to poor engine performance or difficulty starting the mower.
- Damaged Fuel Filter: Inspect the fuel filter for any signs of damage, such as cracks or leaks. A compromised fuel filter should be replaced immediately to prevent fuel leakage and potential safety hazards.
- Leaking Fuel Filter: If you notice fuel leaking from the fuel filter area, it indicates a malfunction, and the filter should be replaced to prevent fuel wastage and potential fire hazards.
- Water in the Fuel: Check the water separator bowl. If you notice water in the fuel, drain it, and replace the fuel filter to ensure no water contamination.
- Service Interval: Bobcat recommends servicing the fuel filter every 1,000 hours or annually, whichever comes first. Even if the fuel filter appears to be in good condition, preventive maintenance can help avoid unexpected issues.
Remember to refer to your Bobcat zero-turn mower's Operation, Maintenance, and Owner's Manual for specific recommendations and procedures. Regular maintenance checks will help you identify issues early on and ensure the optimal performance of your machine.
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How to remove the old filter
To remove the old fuel filter on your Bobcat Zero Turn Mower, you will need to perform the following steps:
Firstly, check the water separator bowl. Drain the bowl if there is visible water or if you see a 'water in fuel' warning. You should also drain the bowl every 1,000 hours of use or annually. Disconnect the electrical connector and remove the separator bowl.
Next, disconnect the fuel hoses. Loosen the filter clamp and remove the old fuel filter. Note that you should replace your fuel filter if it is dirty, damaged, or leaking.
If your machine has a pre-filter, you will need to clean the pre-filter and the surrounding area. Move the hose clamps off and remove the fuel hoses. Loosen the pre-filter clamp and remove the pre-filter, noting the orientation of the arrow before discarding it.
Once you have removed the old filter (or filters), you can install the new ones.
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How to install the new filter
To install the new filter, you must first ensure that you have purchased a genuine Bobcat fuel filter. You can do this by checking the part number (7336334) on the Bobcat website or by contacting an authorized dealer.
Once you have the correct filter, follow these steps:
- Clean the pre-filter and the surrounding area.
- Move the hose clamps off and remove each fuel hose.
- Loosen the filter clamp and remove the old filter. Note the orientation of the arrow on the pre-filter before removing it.
- Install the new pre-filter, ensuring that the arrow is facing the correct direction.
- Lubricate the new O-rings.
- Install the separator bowl before installing the new filter onto the filter housing.
- Connect the electrical connector.
- Prime the fuel system by removing any air from the system.
It is important to note that you should not pre-fill a new filter with fuel. Additionally, the fuel filter should be replaced every 1,000 hours or annually, or whenever it is found to be dirty, damaged, or leaking.
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Priming the pre-filter
To prime the pre-filter of your Bobcat zero-turn mower, you must first clean the area and move the hose clamps off. Remove each fuel hose and loosen the filter clamp. Note the orientation of the arrow on the pre-filter before removing and discarding it.
Next, install the new pre-filter, ensuring that the arrow is facing the correct direction. The fuel system will then need to be primed, and air must be removed from the system.
Your machine may also have a fuel tank vent or breather cap that vents excess pressure. If so, replace it with a new, genuine Bobcat part. You can purchase a genuine Bobcat pre-filter (part number 7348032) from your dealer or online.
Do not pre-fill a new filter with fuel. Instead, lubricate the new O-rings.
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Final clean-up
Once you have installed the new pre-filter, it is time for the final clean-up.
Firstly, you will need to prime the pre-filter and remove any air from the system. If your machine has a fuel tank vent or breather cap, you will need to replace it with a new genuine Bobcat part.
Next, you should clean the area. Move the hose clamps off and remove each fuel hose, loosening the filter clamp. Take note of the orientation of the arrow on the pre-filter before removing and discarding it.
Finally, you will need to install the new pre-filter, ensuring that the arrow is facing the correct direction.
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Frequently asked questions
Bobcat recommends replacing the fuel filter every 1,000 hours or annually.
You can buy a genuine Bobcat fuel filter (part number 7336334) from your local dealer or online.
No, you only need to drain the water separator bowl when water is visible, when you get a "water in fuel" code, or at every fuel filter replacement.











































