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Standard Ignition PR446 Fuel Injection Pressure Regulator
Fuel Pressure Control for Select Honda and Acura Models
The Standard Ignition PR446 is a new fuel injection pressure regulator for gas returnless systems. It features an adjustable design, screw-in mounting, a straight nipple orientation, and a steel body with a silver/chrome finish for service on select Honda and Acura applications.
- Adjustable fuel injection pressure regulator
- Returnless gas system design
- Screw-in mounting type
- Straight nipple orientation
- Steel regulator body with silver/chrome finish
- Includes caution sheet
- Standard Ignition PR446 replacement part
Fitment and Application Details
Compatible with select fuel injection system applications on 2007-2013 Acura MDX, 2010-2013 Acura ZDX, 2010-2011 Honda Pilot, and 2014-2015 Honda Pilot. Use the PR446 when servicing a returnless fuel delivery setup that requires a screw-in regulator with one inlet and one outlet.
This part cross-references Four Seasons 24154 for the same application.
What This Part Helps Address
- Fuel pressure that is outside the specified range
- Hard starting related to inconsistent fuel delivery
- Rough idle caused by unstable injector pressure
- Fuel system drivability concerns on returnless setups
- Replacement needs for a worn or leaking regulator
Installation Notes and Tips
Confirm the vehicle uses a gas returnless fuel system before installation. Match the screw-in mounting style, port count, and nipple orientation to the original regulator. Verify fitment by year, make, and model before service on Acura MDX, Acura ZDX, or Honda Pilot applications.
Quality Assurance
Standard Ignition supplies this PR446 as a new replacement fuel injection pressure regulator built for direct service use in the listed applications.
| Brand | Standard Ignition |
|---|---|
| Part Number | PR446 |
| Adjustable | Yes |
| Automotive Performance Item | No |
| Contents | Includes caution sheet |
| Functions | Regulator |
| Inlet Quantity | 1 |
| Mounting Type | Screw-in |
| New or Reman | New |
| Nipple Orientation | Straight |
| Number of outlets | 1 |
| Part Finish | Chrome |
| Port Quantity | 1 |
| Reference Port Included | No |
| Regulator Finish | Silver |
| Regulator Material | Steel |
| System Type | Gas |
| Type | Returnless |
This part fits 15 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2015 | Honda | Pilot | N/A | |||
| 2014 | Honda | Pilot | N/A | |||
| 2013 | Acura | MDX | N/A | |||
| 2013 | Acura | ZDX | 3.7L | V6 | N/A | |
| 2012 | Acura | MDX | N/A | |||
| 2012 | Acura | ZDX | 3.7L | V6 | N/A | |
| 2011 | Acura | MDX | N/A | |||
| 2011 | Acura | ZDX | 3.7L | V6 | N/A | |
| 2011 | Honda | Pilot | N/A | |||
| 2010 | Acura | MDX | N/A | |||
| 2010 | Acura | ZDX | 3.7L | V6 | N/A | |
| 2010 | Honda | Pilot | N/A | |||
| 2009 | Acura | MDX | N/A | |||
| 2008 | Acura | MDX | N/A | |||
| 2007 | Acura | MDX | N/A |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.