FALCON AU XR8 · WINDSOR METER IDENTIFICATION
The original air-flow meter, its housing and the vehicle’s actual engine specification belong in the same fitment check. For the early AU XR8 Windsor selection, a four-pin plug is one checkpoint. It does not turn every Falcon MAF or aftermarket intake assembly into an equivalent replacement.
Put the 5.0L and 4.9L descriptions in context
A different rounded capacity in a catalogue can create unnecessary doubt, but the full engine identity matters more than a single decimal. For this selection, the relevant engine is the Windsor V8 with 4942cc capacity. Retain that information alongside the AU XR8 designation, VIN and actual build month.
The linked AU XR8 meter selection is deliberately limited to 08/1998–04/2000. It does not cover every AU production date merely because a broader supplier heading says “AU Falcon”. Six-cylinder Falcons, 5.4L Boss engines and later supercharged 5.0L engines are outside this application.
Record the original reference without dropping its suffix
Photograph the original meter’s label and preserve the complete F57F-12B579-CA reference. Search results often shorten a number or combine many cross-references. Ask for a confirmed replacement relationship if another reference is proposed, rather than assuming every number on a comparison list has the same housing and application.
Tell the supplier if the engine or intake has been changed. On a modified vehicle, a VIN alone may describe the factory configuration while the presently fitted components differ. The original-reference and housing match still need to be resolved for the actual installation.
Check the four-pin socket and surrounding housing
The supplied meter has four visible connector pins. Compare the contacts, socket shape and locating features with the original plug. Contact count is a necessary comparison point, not proof that a four-pin meter from another Ford engine is suitable.
Continue to the round housing, mounting flange and position of the electronics cover. Photograph the original from comparable angles, including its surrounding intake connections. The gallery supports a physical comparison; it does not establish an unlisted bore diameter, mounting measurement or calibration.
Separate a replacement housing from an intake upgrade
The linked item is presented as an original-reference replacement selection. It is not a promise of increased power or a universal larger-bore upgrade. This guide makes no 90mm housing claim and does not establish tuning compatibility.
If a modified intake, different housing or engine-management change is involved, have the responsible workshop identify the correct specification for that configuration. Do not order a replacement on the assumption that a hose adaptor, wiring change or later adjustment will resolve an unidentified mismatch.
Confirm what arrives in the package
| Supplied | Excluded |
|---|---|
| One sensor-and-housing assembly, as shown in the actual gallery. | Intake hoses, air filter, wiring harness and vehicle mounting hardware. |
A sensor-only insert is therefore a different package comparison. Ask the installer whether the complete housing assembly is the required service item and what surrounding components are suitable to retain. The product photograph is not a complete intake-system repair kit.
Questions to settle before ordering
Does poor running prove the meter is faulty?
No. A symptom or fault code does not by itself establish a failed MAF. Have the cause assessed separately from confirming which replacement would fit.
What information makes the fitment enquiry useful?
Send the VIN, build month, AU XR8 Windsor identification, complete original reference and clear label, connector, housing and mounting-flange photos. Include details of any engine, intake or wiring changes.
Reference basis and current listing
The manufacturer’s meter record identifies the four-pin housing assembly and F57F-12B579-CA reference. The Australian vehicle catalogue provides the early AU XR8 Windsor vehicle description and build-range context; it is not used here as a claimed sensor-reference interchange record.
Review the current Windsor product page for its full boundaries and actual photographs. Resolve an original-reference, housing or plug mismatch before ordering.
Application details reviewed on 4 November 2026. The featured image is an original AI-generated generic sedan workshop scene, not a photograph of a Falcon or this meter. The in-article image shows the actual listed connector.