Walker 350-84002 Oxygen Sensor Set

Brand	Walker 350-84002
11589	Metric
Heated	Yes
Sensor Type	Narrow-band
Universal Or Specific Fit	Specific
Grade Type	Standard replacement
Wrench Size	22
Thread Size	M18 - 1.5
Mounting Type	Threaded
Product line	OE Replacement
Fits	Ford, Lincoln, Mazda, and Mercury · 75 vehicles

OE replacement. Designed and tested to meet or exceed original equipment specifications.

Standard replacement. Threaded, narrow-band sensor with a heated design.

Helps maintain proper fuel-to-air ratio, engine performance, and emissions control.

$120.68Free shipping

In stock · usually ships same day before 1pm CST

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OE Replacement Oxygen Sensor Set

Walker OE Replacement Oxygen Sensor Set 350-84002 is a direct-fit emission control solution for vehicles that need accurate air-fuel feedback and stable engine management. This heated, narrow-band sensor set is built for specific applications and uses an M18 x 1.5 threaded mount with a 22 mm wrench size.

Walker Products designs these O2 sensor kits to meet or exceed original equipment specifications for gas and diesel engines. The OE Replacement line focuses on standard replacement fitment for domestic and import vehicles, making 350-84002 a practical choice for routine emissions service on Ford, Mazda, Lincoln, and Mercury applications.

Key Features

Brand: Walker OE Replacement
Part number: 350-84002
Heated narrow-band oxygen sensor design
Specific fitment for listed applications
Standard replacement grade
Threaded mounting type
M18 - 1.5 thread size
22 mm wrench size

Detailed Product Overview

This oxygen sensor set is engineered for vehicles that rely on precise exhaust feedback to manage fuel delivery and emissions performance. By replacing the oxygen sensors in the vehicle’s emission system, 350-84002 helps restore proper sensor response for drivability and fuel control. The Walker OE Replacement line is built for broad coverage across domestic platforms, including Ford E-150 Econoline, Ford F-150, Ford Windstar, Mazda B4000, and related applications listed below.

This part number, 350-84002, is a fitment-based replacement for vehicles such as the 1997-2001 Ford E-150 Econoline, 1999-2000 Ford F-150, and 2000-2003 Mazda B4000. It is also listed for 1996-1999 Ford Taurus and 1996-1999 Mercury Sable applications, along with additional Ford, Lincoln, and Mercury models in the same coverage range.

What It Helps Address

Incorrect air-fuel ratio readings from aging oxygen sensors
Check engine light concerns related to O2 sensor performance
Poor fuel economy caused by slow or inaccurate sensor response
Increased exhaust emissions from worn emission control sensors
Rough engine operation tied to degraded feedback signals

Installation Notes

Confirm the vehicle’s year, make, model, and emission configuration before ordering. This is a specific-fit oxygen sensor set with threaded mounting, so the correct application match is important for proper installation. Use the listed thread size, M18 - 1.5, and wrench size, 22 mm, when verifying service access and removal tools. Fits 1997-2001 Ford E-150 Econoline, N/A; Fits 1999-2000 Ford F-150, N/A; Fits 2000-2003 Mazda B4000, N/A.

Quality Assurance

Walker Products states that its oxygen sensor kits are tested to meet or exceed original equipment specifications. The OE Replacement line is intended to provide dependable emissions-system service for gas and diesel applications across domestic and import vehicles.

This part fits 75 vehicles

Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

Year	Make	Model	Liters	Cylinders	Fuel Type	Notes
2003	Mazda	B4000	4.0L	V6	—	Complete Set (Contains all required upstream and downstream oxygen sensors); OE Replacement
2002	Mazda	B4000	4.0L	V6	—	Complete Set (Contains all required upstream and downstream oxygen sensors); OE Replacement
2001	Ford	E-150 Econoline	5.4L	V8	—	Complete Set (Contains all required upstream and downstream oxygen sensors); OE Replacement
2001	Ford	E-150 Econoline Club Wagon	4.6L	V8	—	Complete Set (Contains all required upstream and downstream oxygen sensors); OE Replacement
2001	Ford	E-250 Econoline	5.4L	V8	—	Complete Set (Contains all required upstream and downstream oxygen sensors); OE Replacement
2001	Mazda	B4000	4.0L	V6	—	Complete Set (Contains all required upstream and downstream oxygen sensors); OE Replacement
2000	Ford	E-150 Econoline	5.4L	V8	—	Complete Set (Contains all required upstream and downstream oxygen sensors); OE Replacement
2000	Ford	E-150 Econoline Club Wagon	4.6L	V8	—	Complete Set (Contains all required upstream and downstream oxygen sensors); OE Replacement
2000	Ford	E-250 Econoline	5.4L	V8	—	Complete Set (Contains all required upstream and downstream oxygen sensors); OE Replacement
2000	Ford	F-150	5.4L	V8	—	Non Calif-ESV; Complete Set (Contains all required upstream and downstream oxygen sensors); OE Replacement
2000	Ford	Windstar	3.0L	V6	—	Complete Set (Contains all required upstream and downstream oxygen sensors); OE Replacement
2000	Mazda	B4000	4.0L	V6	—	Complete Set (Contains all required upstream and downstream oxygen sensors); OE Replacement
1999	Ford	E-150 Econoline	5.4L	V8	—	Complete Set (Contains all required upstream and downstream oxygen sensors); OE Replacement
1999	Ford	E-150 Econoline Club Wagon	5.4L	V8	—	Complete Set (Contains all required upstream and downstream oxygen sensors); OE Replacement
1999	Ford	E-250 Econoline	5.4L	V8	—	Complete Set (Contains all required upstream and downstream oxygen sensors); OE Replacement
1999	Ford	E-350 Econoline Club Wagon	6.8L	V10	—	Complete Set (Contains all required upstream and downstream oxygen sensors); OE Replacement
1999	Ford	E-350 Super Duty	6.8L	V10	—	Complete Set (Contains all required upstream and downstream oxygen sensors); OE Replacement
1999	Ford	F-150	5.4L	V8	BI-FUEL	Non Calif-ESV; Complete Set (Contains all required upstream and downstream oxygen sensors); OE Replacement
1999	Ford	F-250 Super Duty	6.8L	V10	—	Complete Set (Contains all required upstream and downstream oxygen sensors); OE Replacement
1999	Ford	F-350 Super Duty	6.8L	V10	—	Complete Set (Contains all required upstream and downstream oxygen sensors); OE Replacement
1999	Ford	Taurus	3.4L	V8	—	Complete Set (Contains all required upstream and downstream oxygen sensors); OE Replacement
1999	Ford	Windstar	3.0L	V6	—	Complete Set (Contains all required upstream and downstream oxygen sensors); OE Replacement
1999	Mercury	Sable	3.0L	V6	—	Complete Set (Contains all required upstream and downstream oxygen sensors); OE Replacement
1998	Ford	E-150 Econoline	5.4L	V8	—	Complete Set (Contains all required upstream and downstream oxygen sensors); OE Replacement
1998	Ford	E-150 Econoline Club Wagon	5.4L	V8	—	Complete Set (Contains all required upstream and downstream oxygen sensors); OE Replacement
1998	Ford	E-250 Econoline	5.4L	V8	—	Complete Set (Contains all required upstream and downstream oxygen sensors); OE Replacement
1998	Ford	E-350 Econoline	6.8L	V10	—	Complete Set (Contains all required upstream and downstream oxygen sensors); OE Replacement
1998	Ford	E-350 Econoline Club Wagon	6.8L	V10	—	Complete Set (Contains all required upstream and downstream oxygen sensors); OE Replacement
1998	Ford	Expedition	5.4L	V8	—	Complete Set (Contains all required upstream and downstream oxygen sensors); OE Replacement
1998	Ford	Explorer	5.0L	V8	—	Complete Set (Contains all required upstream and downstream oxygen sensors); OE Replacement
1998	Ford	F-150	5.4L	V8	—	Complete Set (Contains all required upstream and downstream oxygen sensors); OE Replacement
1998	Ford	Mustang	4.6L	V8	—	Complete Set (Contains all required upstream and downstream oxygen sensors); OE Replacement
1998	Ford	Taurus	3.4L	V8	—	Complete Set (Contains all required upstream and downstream oxygen sensors); OE Replacement
1998	Ford	Windstar	3.8L	V6	—	Complete Set (Contains all required upstream and downstream oxygen sensors); OE Replacement
1998	Lincoln	Mark VIII	4.6L	V8	—	Complete Set (Contains all required upstream and downstream oxygen sensors); OE Replacement
1998	Mercury	Mountaineer	5.0L	V8	—	Complete Set (Contains all required upstream and downstream oxygen sensors); OE Replacement
1998	Mercury	Sable	3.0L	V6	—	Complete Set (Contains all required upstream and downstream oxygen sensors); OE Replacement
1997	Ford	Crown Victoria	4.6L	V8	—	Complete Set (Contains all required upstream and downstream oxygen sensors); OE Replacement
1997	Ford	E-150 Econoline	5.4L	V8	—	Complete Set (Contains all required upstream and downstream oxygen sensors); OE Replacement
1997	Ford	E-150 Econoline Club Wagon	5.4L	V8	—	Complete Set (Contains all required upstream and downstream oxygen sensors); OE Replacement
1997	Ford	E-250 Econoline	5.4L	V8	—	Complete Set (Contains all required upstream and downstream oxygen sensors); OE Replacement
1997	Ford	E-350 Econoline	6.8L	V10	—	Complete Set (Contains all required upstream and downstream oxygen sensors); OE Replacement
1997	Ford	E-350 Econoline Club Wagon	5.4L	V8	—	Complete Set (Contains all required upstream and downstream oxygen sensors); OE Replacement
1997	Ford	Expedition	5.4L	V8	—	Complete Set (Contains all required upstream and downstream oxygen sensors); OE Replacement
1997	Ford	Explorer	5.0L	V8	—	Complete Set (Contains all required upstream and downstream oxygen sensors); OE Replacement
1997	Ford	F-150	5.4L	V8	—	Complete Set (Contains all required upstream and downstream oxygen sensors); OE Replacement
1997	Ford	F-350	7.5L	V8	—	Complete Set (Contains all required upstream and downstream oxygen sensors); OE Replacement
1997	Ford	Mustang	4.6L	V8	—	Complete Set (Contains all required upstream and downstream oxygen sensors); OE Replacement
1997	Ford	Taurus	3.4L	V8	—	Complete Set (Contains all required upstream and downstream oxygen sensors); OE Replacement
1997	Ford	Thunderbird	4.6L	V8	—	Complete Set (Contains all required upstream and downstream oxygen sensors); OE Replacement
1997	Ford	Windstar	3.8L	V6	—	Complete Set (Contains all required upstream and downstream oxygen sensors); OE Replacement
1997	Lincoln	Continental	4.6L	V8	—	Complete Set (Contains all required upstream and downstream oxygen sensors); OE Replacement
1997	Lincoln	Mark VIII	4.6L	V8	—	Complete Set (Contains all required upstream and downstream oxygen sensors); OE Replacement
1997	Lincoln	Town Car	4.6L	V8	—	Complete Set (Contains all required upstream and downstream oxygen sensors); OE Replacement
1997	Mercury	Cougar	4.6L	V8	—	Complete Set (Contains all required upstream and downstream oxygen sensors); OE Replacement
1997	Mercury	Grand Marquis	4.6L	V8	—	Complete Set (Contains all required upstream and downstream oxygen sensors); OE Replacement
1997	Mercury	Mountaineer	5.0L	V8	—	Complete Set (Contains all required upstream and downstream oxygen sensors); OE Replacement
1997	Mercury	Sable	3.0L	V6	—	Complete Set (Contains all required upstream and downstream oxygen sensors); OE Replacement
1996	Ford	Crown Victoria	4.6L	V8	—	Complete Set (Contains all required upstream and downstream oxygen sensors); OE Replacement
1996	Ford	Explorer	5.0L	V8	—	Complete Set (Contains all required upstream and downstream oxygen sensors); OE Replacement
1996	Ford	Mustang	4.6L	V8	—	Complete Set (Contains all required upstream and downstream oxygen sensors); OE Replacement
1996	Ford	Taurus	3.4L	V8	—	Complete Set (Contains all required upstream and downstream oxygen sensors); OE Replacement
1996	Ford	Thunderbird	4.6L	V8	—	Complete Set (Contains all required upstream and downstream oxygen sensors); OE Replacement
1996	Ford	Windstar	3.8L	V6	—	Complete Set (Contains all required upstream and downstream oxygen sensors); OE Replacement
1996	Lincoln	Continental	4.6L	V8	—	Complete Set (Contains all required upstream and downstream oxygen sensors); OE Replacement
1996	Lincoln	Mark VIII	4.6L	V8	—	Complete Set (Contains all required upstream and downstream oxygen sensors); OE Replacement
1996	Lincoln	Town Car	4.6L	V8	—	Complete Set (Contains all required upstream and downstream oxygen sensors); OE Replacement
1996	Mercury	Cougar	4.6L	V8	—	Complete Set (Contains all required upstream and downstream oxygen sensors); OE Replacement
1996	Mercury	Grand Marquis	4.6L	V8	—	Complete Set (Contains all required upstream and downstream oxygen sensors); OE Replacement
1996	Mercury	Sable	3.0L	V6	—	Complete Set (Contains all required upstream and downstream oxygen sensors); OE Replacement
1995	Ford	Mustang	5.8L	V8	—	Complete Set (Contains all required upstream and downstream oxygen sensors); OE Replacement
1995	Ford	Thunderbird	3.8L	V6	—	Complete Set (Contains all required upstream and downstream oxygen sensors); OE Replacement
1995	Ford	Windstar	3.8L	V6	—	Complete Set (Contains all required upstream and downstream oxygen sensors); OE Replacement
1995	Lincoln	Continental	4.6L	V8	—	Complete Set (Contains all required upstream and downstream oxygen sensors); OE Replacement
1994	Ford	Thunderbird	3.8L	V6	—	Complete Set (Contains all required upstream and downstream oxygen sensors); OE Replacement
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