Standard Ignition Fuel Filter and Pressure Regulator Assembly,Fuel Injection Pressure Regulator P/N:PR497
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Keep fuel pressure steady across the engine's operating range with the Standard Ignition Fuel Filter and Pressure Regulator Assembly / Fuel Injection Pressure Regulator PR497. It installs as a direct-fit replacement for the listed applications: the 2002-2005 Audi A4 Quattro (L4-1.8L), 2004 Audi S3 (L4-1.8L), 2004 Audi S4 (V8-4.2L), and 2004 Audi S6 (V8-4.2L). This part is cataloged under both names — a fuel filter and pressure regulator assembly and a fuel injection pressure regulator.
Regulates fuel pressure: holds the intended pressure at the fuel rail and returns excess fuel, so the injectors receive a controlled supply.
Integrated fuel filtration: strains contaminants out of the fuel as it passes through the assembly.
Combination design: pairs the filter and regulator functions in a single serviceable unit.
Signs this part may need replacing include hard starting, a rough or unstable idle, a fuel odor, or poor throttle response. Because these symptoms can have other causes, diagnose the fuel system first; if a failed regulator or clogged filter is the cause, this assembly replaces it.
Manufacturer part number PR497.
Frequently Asked Questions
What vehicles does the PR497 fit?
It's a direct-fit replacement for the 2002-2005 Audi A4 Quattro (L4-1.8L), 2004 Audi S3 (L4-1.8L), 2004 Audi S4 (V8-4.2L), and 2004 Audi S6 (V8-4.2L). See the Buyer's Guide tab to confirm your vehicle.
What does this part do?
It regulates fuel pressure at the rail and returns excess fuel to control the supply to the injectors, and it strains contaminants from the fuel through its integrated filter.
Why is it listed under two names?
It's cataloged as both a Fuel Filter and Pressure Regulator Assembly and a Fuel Injection Pressure Regulator because the unit combines both functions in one part.
How do I know if my regulator needs replacing?
Signs may include hard starting, a rough idle, a fuel odor, or poor throttle response. Diagnose the fuel system first, since these symptoms can have other causes.
Does replacing this guarantee my problem is solved?
No. It replaces the assembly if a failed regulator or clogged filter is the cause. Other components can produce similar symptoms, so verify the cause before ordering.
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WARNING:
These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to
www.P65Warnings.ca.gov.
