Name: O2 Sensor Ford Falcon AU BA BF FG Territory SX SY SZ BA9F472A 1998-2016
Brand: Aftermarket OEM Replacement
SKU: 0258986603
Price: 65.45 AUD
Availability: InStock

BRAND NEW *OEM Quality* O2 sensor to suit Ford Falcon AU / BA / BF / FG / Territory SX / SY / SZ and many other Ford models.

A failed oxygen sensor on the Barra 4.0L or Windsor V8 forces the ECU into open-loop fuelling - increasing fuel consumption and triggering fault codes P0136 / P0141 or P0420. This 4-wire narrowband sensor fits both the pre-cat and post-cat positions on all listed models. Same-day dispatch from Victoria before 12pm.

TO SUIT

Suits Ford Falcon AU / BA / BF / FG / FG X (1998-2016) with Intech 4.0L / Barra 182-195 / Windsor 5.0L V8 and Boss/Barra 5.4L V8 engines. Also suits Territory SX / SY / SZ (2004-2016) and FPV F6 / GT / Pursuit models. Suits many Explorer / Transit / Fiesta / Focus / Mondeo variants - verify using OEM number BA9F472A or 5W6Z9G444BA. Full vehicle list in the suitability section below.

FITMENT CHECK

This is a 4-wire narrowband sensor with a round 4-pin plug. Verify your connector type before ordering. Suits both upstream (pre-cat) and downstream (post-cat) positions on all listed Falcon and Territory models.

OEM PART NUMBERS

5W6Z9G444BA
BA9F472A
BE5Z9G444A

OTHER PART NUMBERS

BOSCH: 0258986603

PACKAGE INCLUDES

1 x oxygen sensor (4-wire narrowband / round 4-pin connector) - suits both pre-cat and post-cat positions

ABOUT THIS SENSOR

The 4-wire narrowband O2 sensor fitted across Ford Barra 4.0L and Windsor / Barra 5.4L V8 engines monitors exhaust oxygen content both upstream and downstream of the catalytic converter. On Falcon FG and Territory SZ models the ECU uses two sensors per bank - a degraded post-cat sensor is frequently the source of false P0420 catalyst efficiency codes on otherwise healthy Barra engines.

On AU Falcon Intech models the single pre-cat sensor directly controls fuel trims. Failure causes rich running and increased fuel consumption before the Check Engine light illuminates. On LPG bi-fuel variants a degraded sensor disrupts the petrol-to-LPG switchover and causes rough running on both fuels.

COMMON SYMPTOMS OF FAILURE

Check Engine light - fault codes P0136 / P0141 / P0420 / P0430
Increased fuel consumption on Barra 4.0L and V8 models
Rough idle or poor throttle response after warmup
Failed emissions test - elevated HC or CO readings
LPG-petrol switchover issues on bi-fuel Falcon and Territory
Engine running rich - black sooty exhaust or fuel smell at tailpipe

FORD 4.0 BARRA & IN-TECH ENGINES
[09/98 - 03/00] FORD FAIRLANE AU I 4.0L 6cyl Intech VCT
[04/00 - 06/03] FORD FAIRLANE AU II 4.0L 6cyl Intech VCT
[09/98 - 03/00] FORD FAIRMONT AU I 4.0L 6cyl Intech
[04/00 - 09/01] FORD FAIRMONT AU II 4.0L 6cyl Intech VCT
[10/01 - 09/02] FORD FAIRMONT AU III 4.0L 6cyl Intech VCT
[09/98 - 03/00] FORD FALCON AU I 4.0L 6cyl Intech
[06/99 - 03/00] FORD FALCON AU I XR6 4.0L 6cyl Intech VCT
[04/00 - 01/02] FORD FALCON AU II 4.0L 6cyl Intech E-Gas 143kW
[04/00 - 01/02] FORD FALCON AU II 4.0L 6cyl Intech
[04/00 - 01/02] FORD FALCON AU II XR6 4.0L 6cyl Intech VCT
[02/02 - 09/02] FORD FALCON AU III 4.0L 6cyl Intech E-Gas 143kW
[02/02 - 09/02] FORD FALCON AU III 4.0L 6cyl Intech
[02/02 - 09/02] FORD FALCON AU III XR6 4.0L 6cyl Intech VCT
[05/99 - 05/00] FORD LTD AU I 4.0L 6cyl Intech VCT
[06/00 - 06/03] FORD LTD AU II 4.0L 6cyl Intech VCT
[07/03 - 02/05] FORD FAIRLANE BA I 4.0L 6cyl Barra 182 182kW
[03/05 - 09/05] FORD FAIRLANE BA II 4.0L 6cyl Barra 182 182kW
[10/02 - 09/04] FORD FALCON BA I 4.0L 6cyl Barra 182 182kW
[10/02 - 09/04] FORD FALCON BA I XR6 4.0L 6cyl Barra 182 182kW
[10/04 - 09/05] FORD FALCON BA II 4.0L 6cyl Barra 182 182kW
[10/04 - 09/05] FPV F6 TORNADO BA II 4.0L 6cyl Barra 270 270kW
[10/05 - 12/07] FORD FAIRLANE BF 4.0L 6cyl Barra 190 190kW
[10/05 - 09/06] FORD FALCON BF I 4.0L 6cyl Barra 190 190kW
[10/05 - 09/06] FORD FALCON BF I XR6 4.0L 6cyl Barra 190 190kW
[10/06 - 04/08] FORD FALCON BF II 4.0L 6cyl Barra 190 190kW
[10/06 - 04/08] FORD FALCON BF II XR6 4.0L 6cyl Barra 190 190kW
[10/05 - 09/06] FPV F6 TYPHOON BF I 4.0L 6cyl Barra 270 270kW
[10/06 - 04/08] FPV FORCE 6 BF II 4.0L 6cyl Barra 270 270kW
[05/08 - 04/10] FORD FALCON FG I 4.0L 6cyl Barra 195 195kW
[05/08 - 11/11] FORD FALCON FG I XR6 4.0L 6cyl Barra 195 195kW
[12/11 - 10/14] FORD FALCON FG II 4.0L 6cyl Barra 195 195kW
[11/14 - 10/16] FORD FALCON FG X 4.0L 6cyl Barra 195 195kW
[05/08 - 11/11] FPV F6 / F6E FG I 4.0L 6cyl Barra 310 310kW
[12/11 - 12/14] FPV F6 / F6E FG II 4.0L 6cyl Barra 310 310kW
FORD TERRITORY
[01/04 - 12/05] FORD TERRITORY SX 4.0L 6cyl Barra 182 182kW
[01/05 - 12/09] FORD TERRITORY SY 4.0L 6cyl Barra 190 190kW
[01/09 - 12/11] FORD TERRITORY SY II 4.0L 6cyl Barra 190 190kW
[01/11 - 12/14] FORD TERRITORY SZ 4.0L 6cyl Barra 195 195kW
[01/14 - 12/16] FORD TERRITORY SZ II 4.0L 6cyl Barra 195 195kW
FORD V8 (Windsor / Boss / Barra)
[09/98 - 09/02] FORD FALCON AU I-III 5.0L V8 302 cu.in Windsor
[09/98 - 09/02] FORD FALCON AU I-III XR8 5.0L V8 Windsor
[10/02 - 09/05] FORD FALCON BA I-II 5.4L V8 Barra 220 220kW
[10/02 - 09/05] FORD FALCON BA I-II XR8 5.4L V8 Boss 260 260kW
[02/03 - 09/05] FPV GT BA I-II 5.4L V8 Boss 290 290kW
[10/05 - 04/08] FORD FALCON BF I-II 5.4L V8 Barra 230 230kW
[10/05 - 04/08] FORD FALCON BF I-II XR8 5.4L V8 Boss 260 260kW
[10/05 - 04/08] FPV GT BF I-II 5.4L V8 Boss 290-302kW
[05/08 - 11/11] FORD FALCON FG I XR8 5.4L V8 Boss 290 290kW
[05/08 - 12/14] FPV GT FG I-II 5.0L V8 Coyote / 5.4L Boss
FORD EXPLORER / TRANSIT / TRUCKS
[01/96 - 12/05] FORD EXPLORER UN-UZ 4.0L V6 Cologne / 4.6L V8 Modular
[01/00 - 12/06] FORD TRANSIT VH-VJ 2.3L 4cyl E5FA E5FC 103kW
[01/90 - 12/06] FORD F150 / F250 / F350 5.4L-5.8L V8
FORD DURATEC / ZETEC MODELS
[01/99 - 12/02] FORD COUGAR SW / SX 2.5L V6 Duratec
[01/01 - 12/08] FORD ESCAPE BA-ZC 3.0L V6 Duratec AJ
[01/03 - 12/11] FORD FIESTA WP / WQ / WS 1.4-1.6L Duratec
[01/02 - 12/05] FORD FOCUS LR 1.8-2.0L Zetec / ST170
[01/99 - 12/02] FORD KA TA / TB 1.3L Endura E
[01/96 - 12/00] FORD MONDEO HC-HE 2.0L Zetec / 2.5L V6 Duratec
[01/96 - 12/98] FORD TAURUS DN/DP 3.0L V6 Duratec

How do I replace an oxygen sensor?

Most O2 sensors thread directly into the exhaust pipe or manifold. You will need an O2 sensor socket (22mm with a slot for the wire) and penetrating oil if the sensor is seized. Allow the exhaust to cool completely before starting. Some sensors also require a wiring harness connector to be unplugged. Always clear fault codes with an OBD2 scanner after replacement.

What fault codes does a faulty O2 sensor trigger?

A faulty O2 sensor typically triggers codes P0130 to P0167. The specific code indicates which sensor has failed - P0130 to P0138 relate to Bank 1 sensors and P0150 to P0158 relate to Bank 2 sensors. An OBD2 scanner will identify the exact sensor location.

Can I use a universal O2 sensor on my vehicle?

Universal sensors can work but require splicing the wiring harness which introduces risk of connection faults. A direct-fit aftermarket OEM replacement sensor with the correct connector plugs directly in with no cutting or splicing required. SensorGal stocks direct-fit sensors cross-referenced to OEM part numbers for most Australian vehicles.

How do I know if my O2 sensor is bad?

Common signs include poor fuel economy, rough idle, failed emissions test, rotten egg smell from the exhaust, and a Check Engine light with codes P0130-P0167. An OBD2 scanner showing a flat or sluggish O2 sensor waveform on live data also indicates a faulty sensor.

What is the difference between upstream and downstream O2 sensors?

The upstream (pre-cat) sensor monitors exhaust gases to help the ECU calculate fuel trim. The downstream (post-cat) sensor monitors catalytic converter efficiency. They serve different functions and are not interchangeable even if they look identical.

Can a bad O2 sensor damage my catalytic converter?

Yes. A faulty upstream O2 sensor can cause the engine to run rich, sending unburnt fuel into the catalytic converter. Over time this overheats and destroys the catalyst. Replacing the O2 sensor promptly protects your catalytic converter.

How many O2 sensors does my vehicle have?

Most 4-cylinder vehicles have two O2 sensors (one upstream, one downstream). V6 and V8 engines typically have four - one upstream and one downstream per bank. Contact us with your vehicle details and we will confirm the correct quantity and part numbers.

Identification
SKU	0258986603
Barcode #	9341554010949
Brand	Aftermarket OEM Replacement
Part Numbers
Part Number	0258986603
Reference OEM Number	BA9F472A
Other OEM Numbers	5W6Z9G444BA, BA9F472A, BE5Z9G444A
Related Part Numbers	COS802, EGO-006, ES20014, OX243
Trade Part Numbers	BOSCH: 0258986603
Product Specifics
Sensor Type	Oxygen Sensor
Placement On Vehicle	PRE-CAT
Type	Sensor
Features	Direct Fit
Manufacturer Warranty	1 Year
Other Details
Note	4-wire round plug - suits both pre and post cat
Unit Of Measure	ea