6668639 Fuel Filter is a replacement fuel filter for Bobcat skid steer loaders, including 963. The fuel filter removes dirt, rust and other contaminants from diesel before the fuel reaches the pump and injectors. Supplied by LIONKITS.
6668639 Fuel Filter Specifications
- Product Type: Fuel Filter
- Part Number: 6668639, 6670995
- Compatible Brand: Bobcat
- Machine Type: Skid Steer Loader
Bobcat Models Compatible with the 6668639 Fuel Filter
- Bobcat Skid Steer Loader: 963
Your model is not listed? Contact LIONKITS via live chat or email with your machine model and nameplate photo, and we will confirm compatibility.
What Does a Fuel Filter Do?
The fuel filter removes dirt, rust and other contaminants from diesel before the fuel reaches the pump and injectors. Where the filter includes a water separator, it also separates water from the fuel, which protects the injection system from corrosion and wear.
Signs the Filters or Parts Need Replacing
- Hard starting or long cranking: a clogged filter starves the injection system of fuel.
- Loss of power under load: restricted fuel flow shows up when the engine demands more fuel.
- Rough running or stalling: unstable fuel supply upsets combustion.
- Water in the fuel or a full separator bowl: drain the water and replace the filter if it keeps returning.
These symptoms overlap with other fuel, hydraulic and air system problems, so check the basics first.
How to Order and Install the 6668639 Fuel Filter
- Confirm your machine model, engine and the part number before ordering.
- Change the fuel filter at the interval in the operator manual, and use clean fuel.
- Fill the new filter with clean fuel if the design allows, and bleed air from the fuel system after installation.
- Check for fuel leaks with the engine running.
Frequently Asked Questions
What is the 6668639 Fuel Filter?
The 6668639 Fuel Filter is a replacement fuel filter for Bobcat skid steer loaders under part numbers 6668639, 6670995.
Which Bobcat models does the 6668639 Fuel Filter fit?
It is listed for 963. If you are unsure, send your machine nameplate to LIONKITS for confirmation.
How often should the fuel filter be replaced?
Follow the service interval in the operator manual for your model; many Bobcat service schedules call for new fuel filters at the 500-hour service.
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