Standard Ignition Fuel Injector P/N:FJ310

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$81.99
MPN: FJ310
Item Package Quantity: 1
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Standard Ignition Fuel Injector P/N:FJ310
Standard Ignition Fuel Injector P/N:FJ310
$81.99

Meter a clean, precise spray of fuel with the Standard Ignition Fuel Injector FJ310. It installs as a direct-fit replacement for the 1998-2000 Ford Contour, the 1999 Mercury Cougar, and the 1998-2000 Mercury Mystique, restoring the electronically controlled fuel delivery your engine's management system relies on.

A fuel injector is a solenoid-operated valve: when the ECU energizes it, the pintle lifts and atomizes pressurized fuel into the intake tract on each pulse. A worn or clogged injector can disturb that spray pattern and upset the air-fuel ratio.

  • Mechanical job: opens on command from the engine controller to spray metered fuel, then seals shut between pulses to hold rail pressure.
  • Signs this part may need replacing: rough idle, hesitation, misfire, or a fuel odor that traces back to a leaking or restricted injector — diagnose the cause before replacing.
  • Service tip: if a failed injector is the confirmed cause of your driveability issue, this unit replaces it; inspect and reuse or renew the seals as directed by the service procedure.

Interchange: 57833 · 2-18340 · 218340 · F73E9F593B5A · F7RZ9F539BA · F7RZ9F593BA · 800-1313N · 8001313N
Manufacturer part number FJ310.

This part cross-references / interchanges with the following part numbers:

57833, 2-18340, F73E9F593B5A, F7RZ9F539BA, F7RZ9F593BA, 800-1313N

Frequently Asked Questions

What does the FJ310 fuel injector do?

It is a solenoid-operated valve that opens when the engine controller signals it, spraying atomized, metered fuel into the intake, then seals shut between pulses to maintain rail pressure.

Which vehicles does this injector fit?

It is a direct-fit replacement for the 1998-2000 Ford Contour, 1999 Mercury Cougar, and 1998-2000 Mercury Mystique. Confirm fitment for your vehicle in the Buyer's Guide tab.

What are signs an injector may need replacing?

Rough idle, hesitation, misfire, or a fuel smell can point to a leaking or clogged injector. These symptoms have other causes, so diagnose the fault before replacing the part.

Should I replace more than one injector?

Not required. Some technicians choose to service related injectors together, but replace only what your diagnosis confirms as faulty for your engine.

What interchange numbers does the FJ310 cross to?

It cross-references 57833, 2-18340 (218340), F73E9F593B5A, F7RZ9F539BA, F7RZ9F593BA, and 800-1313N (8001313N).