Keep clean fuel flowing to the engine with the Wix Fuel Filter 33697, a replacement filter cataloged for a wide range of heavy-duty trucks, buses, and motorhomes — including the 2023-2025 American Coach American Dream, the 1997-2006 and 2015-2016 Blue Bird All American RE, the 1987-2014 Crane Carrier Low Entry, the 1998-2006 Kenworth T300, the 1999-2004 Kenworth T800, and the 2001-2005 Freightliner XC. With 104 applications in all, see the Buyer's Guide tab for the complete list.
- Contaminant filtration: captures dirt, rust, and other debris carried in the fuel so it doesn't reach the engine.
- Fuel-system protection: helps shield injectors, pumps, and other downstream components from particulate wear.
- Direct-fit replacement: installs on the listed applications as a routine service filter.
- Serviceable wear item: intended to be swapped at the interval in the vehicle's maintenance schedule.
A fuel filter loads up over time with the contaminants it captures, which can gradually restrict flow. If a clogged filter is the cause of hard starting, hesitation, or a loss of power under load, replacing it with the 33697 helps restore an unobstructed path for clean fuel. Diagnose the underlying cause before replacing, since these symptoms can have other sources.
Manufacturer part number 33697.
Frequently Asked Questions
What does the Wix 33697 do?
It filters the fuel supplied to the engine, trapping dirt, rust, and other debris before they can reach the injectors and pump.
Will this filter fit my vehicle?
It is cataloged for 104 applications across trucks, buses, and motorhomes. Check the Buyer's Guide tab to confirm your exact year, make, and model.
What is the part number?
This is Wix manufacturer part number 33697.
What are signs the fuel filter may need replacing?
Hard starting, hesitation, stalling, or a loss of power under load can be signs the filter is restricted. Diagnose the cause, since these symptoms can have other sources.
How often should I replace it?
Replace it at the interval listed in your vehicle's maintenance schedule, or sooner if a restricted filter is diagnosed.
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