Standard Ignition PR273 fuel injection pressure regulator for the 1998-2001 Nissan Altima 4-cylinder 2.4L and other vehicles holds fuel pressure steady at the injectors.
Hard starting, a rough idle or a fuel smell can mean the regulator is worn or leaking, and a fuel smell is worth having a shop look at promptly. These signs alone do not prove the regulator is the problem; a clogged fuel filter is another common source.
This regulator fits the 1998-2001 Nissan Altima 4-cylinder 2.4L and the 1997-2001 Infiniti Q45 V8 4.1L.
Fit and size
Build and materials
One regulator and a caution sheet. Both cars take one regulator.
Interchange: 2-19684 · 800-385
23035 · 226702J200
This part cross-references / interchanges with the following part numbers:
Does the Standard Ignition PR273 fit the 1997-2001 Infiniti Q45 V8 4.1L?
Yes. Standard Ignition PR273 fits the 1997-2001 Infiniti Q45 V8 4.1L, as well as the 1998-2001 Nissan Altima 4-cylinder 2.4L.
Is the Standard Ignition fuel injection pressure regulator tested for vibration and heat?
Yes. The design is validated with 200+ hours of vibration testing, 1000+ hours of extreme heat and cold operational testing and on-vehicle testing.
Does the PR273 regulator come with a caution sheet?
Yes. The PR273 includes a caution sheet. This listing is one regulator, and the vehicle takes one.
What is the operating pressure of this regulator?
The operating pressure is 43 psi, and the nipple orientation is straight. The system type is listed as gas.
Does 800-385 interchange with the Standard Ignition PR273?
Yes. 800-385 is among the numbers that Standard Ignition PR273 replaces.
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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.
