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Mercury 4 Oxygen Sensor

About

An oxygen sensor is a device in the emission control system that measures the amount of oxygen in the exhaust pipe and then sends the information to the electronic control module. The information provided by the oxygen sensor is then used to determine the amount of oxygen needed to perform efficient combustion. Less oxygen will result to fuel left over after the combustion while too much oxygen supply will cause the fuel-oxygen mixture to produce greater amounts of nitrogen-oxide pollutants. Excess air is supplied in the mixture than needed may even cause damage to the engine. Defective oxygen sensor will provide inaccurate oxygen level reading and will result to decreased engine performance and poor fuel efficiency. Auto Parts Network carries all the parts you need in maintaining the efficiency of your vehicle. Hide

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$34.11
List Price:
$44.34
IN STOCK
OUT OF STOCK
Auto Part # ES20104 Delphi
  • Oxygen Sensor Notes:
    1. Position: Front
    2. Wrench Size: 7/8 in. Actual OE Part
  • Oxygen Sensor Specs:
    • Fitment: Vehicle Specific
    • Number of Wires: 4

Additional Features

2001 - 2003 Mercury Sable Oxygen Sensor - Front Delphi 4
- Additional Product Notes and Features:
  • Shipping Options:
    • Ships Ground, Two-Day, or Next-Day
    • This Product is eligible for International Shipping
  • Manufacturer:
    • Delphi
  • Also Known As:
    • O2 Sensor
  • Suggested Purchase Quantity: 2
    • Most jobs typically require 2 of this item.
View all Details for Delphi ES20104

 [-] Hide  [+] Show   Additional Mercury Fitment Information:
Vehicle Submodel Fuel Type Engine VIN Position Block Engine CID CC
2001 - Mercury Cougar S   G Front V 6 Cyl 2.5L 155 2450
2005 - Mercury Sable GS FLEX 2 Front        
2007 - Mercury Milan Premier   1 Front V 6 Cyl 3.0L 183 -
2003 - Mercury Sable LS Premium GAS S Front        
2003 - Mercury Grand Marquis       Front        
2004 - Mercury Sable GS FLEX 2 Front        
2005 - Mercury Grand Marquis       Front        
2008 - Mercury Mariner Base GAS 1 Front V 6 Cyl 3.0L 183 -
2004 - Mercury Grand Marquis       Front        
2001 - Mercury Cougar V6   L Front V 6 Cyl 2.5L 155 2450
2002 - Mercury Mountaineer   FLEX K Front V 6 Cyl 4.0L 245 -
2007 - Mercury Montego Luxury     Front        
2002 - Mercury Grand Marquis       Front        
2006 - Mercury Milan Base   1 Front V 6 Cyl 3.0L 183 -
2001 - Mercury Sable   FLEX 2 Front        
2000 - Mercury Sable     U Front        
2006 - Mercury Montego Luxury     Front        
2000 - Mercury Cougar V6   L Front V 6 Cyl 2.5L 155 2450
2002 - Mercury Mountaineer   GAS E Front V 6 Cyl 4.0L 245 -
2005 - Mercury Sable Platinum Edition GAS S Front        
2004 - Mercury Sable GS GAS U Front        
2006 - Mercury Montego Premier     Front        
2003 - Mercury Sable LS Premium GAS U Front        
2005 - Mercury Sable GS GAS U Front        
2004 - Mercury Sable LS Premium GAS S Front        
2007 - Mercury Montego Premier     Front        
2002 - Mercury Sable     U Front        
2001 - Mercury Grand Marquis       Front        
2000 - Mercury Sable     S Front        
2008 - Mercury Mariner Premier GAS 1 Front V 6 Cyl 3.0L 183 -
2004 - Mercury Marauder       Front        
2002 - Mercury Sable     S Front        
2003 - Mercury Marauder       Front        
2007 - Mercury Milan Base   1 Front V 6 Cyl 3.0L 183 -
2007 - Mercury Mariner Premier GAS 1 Front V 6 Cyl 3.0L 183 -
2001 - Mercury Sable   GAS U Front        
2007 - Mercury Mariner Luxury GAS 1 Front V 6 Cyl 3.0L 183 -
2006 - Mercury Milan Premier   1 Front V 6 Cyl 3.0L 183 -
2001 - Mercury Sable   GAS S Front        
2003 - Mercury Sable GS FLEX 2 Front        
$34.80
List Price:
$45.24
IN STOCK
OUT OF STOCK
Auto Part # ES20014 Delphi
  • Oxygen Sensor Notes:
    1. Position: Rear
    2. Wrench Size: 7/8 in. Actual OE Part
  • Oxygen Sensor Specs:
    • Fitment: Vehicle Specific
    • Number of Wires: 4

Additional Features

2005 - 2008 Mercury Grand Marquis Oxygen Sensor - Rear Delphi 4
- Additional Product Notes and Features:
  • Shipping Options:
    • Ships Ground, Two-Day, or Next-Day
    • This Product is eligible for International Shipping
  • Manufacturer:
    • Delphi
  • Also Known As:
    • O2 Sensor
  • Suggested Purchase Quantity: 2
    • Most jobs typically require 2 of this item.
View all Details for Delphi ES20014

 [-] Hide  [+] Show   Additional Mercury Fitment Information:
Vehicle Submodel Fuel Type Engine VIN Position Block Engine CID CC
2005 - Mercury Grand Marquis       Rear        
2007 - Mercury Grand Marquis LS GAS W Rear        
2002 - Mercury Mountaineer   GAS W Rear V 8 Cyl 4.6L 281 -
2007 - Mercury Grand Marquis GS FLEX V Rear        
2005 - Mercury Mountaineer   GAS W Rear V 8 Cyl 4.6L 281 -
2003 - Mercury Marauder       Rear        
2008 - Mercury Mountaineer Premier   E Rear V 6 Cyl 4.0L 245 -
2006 - Mercury Mountaineer Luxury   E Rear V 6 Cyl 4.0L 245 -
2006 - Mercury Grand Marquis LS FLEX V Rear        
2007 - Mercury Grand Marquis LS FLEX V Rear        
2000 - Mercury Grand Marquis       Rear        
2008 - Mercury Mountaineer Base   E Rear V 6 Cyl 4.0L 245 -
2008 - Mercury Grand Marquis GS GAS W Rear        
2006 - Mercury Grand Marquis LS GAS W Rear        
2008 - Mercury Grand Marquis GS FLEX V Rear        
2007 - Mercury Mountaineer Premier   8 Rear V 8 Cyl 4.6L 281 -
2004 - Mercury Grand Marquis       Rear        
2007 - Mercury Mountaineer Premier   E Rear V 6 Cyl 4.0L 245 -
2007 - Mercury Grand Marquis GS GAS W Rear        
2004 - Mercury Marauder       Rear        
2006 - Mercury Mountaineer Luxury   8 Rear V 8 Cyl 4.6L 281 -
2003 - Mercury Mountaineer   GAS W Rear V 8 Cyl 4.6L 281 -
2006 - Mercury Mountaineer Convenience   E Rear V 6 Cyl 4.0L 245 -
2008 - Mercury Grand Marquis LS GAS W Rear        
2008 - Mercury Mountaineer Premier   8 Rear V 8 Cyl 4.6L 281 -
2004 - Mercury Mountaineer Base GAS W Rear V 8 Cyl 4.6L 281 -
1998 - Mercury Grand Marquis       Rear        
2006 - Mercury Grand Marquis GS GAS W Rear        
1999 - Mercury Grand Marquis       Rear        
2004 - Mercury Mountaineer Premier GAS W Rear V 8 Cyl 4.6L 281 -
2002 - Mercury Grand Marquis       Rear        
2006 - Mercury Mountaineer Premier   8 Rear V 8 Cyl 4.6L 281 -
2003 - Mercury Grand Marquis       Rear        
2001 - Mercury Grand Marquis       Rear        
2007 - Mercury Mountaineer Base   E Rear V 6 Cyl 4.0L 245 -
2006 - Mercury Grand Marquis GS FLEX V Rear        
2008 - Mercury Grand Marquis LS FLEX V Rear        
$34.75
List Price:
$45.18
IN STOCK
OUT OF STOCK
Auto Part # ES20316 Delphi
  • Oxygen Sensor Notes:
    1. Position: N/A
    2. Wrench Size: 7/8 in. Actual OE Part
  • Oxygen Sensor Specs:
    • Fitment: Vehicle Specific
    • Number of Wires: 4

Additional Features

1998 - 1994 Mercury Cougar Oxygen Sensor - N/A Delphi 4
- Additional Product Notes and Features:
  • Shipping Options:
    • Ships Ground, Two-Day, or Next-Day
    • This Product is eligible for International Shipping
  • Manufacturer:
    • Delphi
  • Also Known As:
    • O2 Sensor
  • Suggested Purchase Quantity: 4
    • Most jobs typically require 4 of this item.
View all Details for Delphi ES20316

 [-] Hide  [+] Show   Additional Mercury Fitment Information:
Vehicle Engine VIN Position Block Engine CID CC
1998 - Mercury Mountaineer P N/A V 8 Cyl 5.0L 302 -
1997 - Mercury Mountaineer   N/A        
1994 - Mercury Cougar W N/A V 8 Cyl 4.6L 281 -
$35.48
List Price:
$44.70
IN STOCK
OUT OF STOCK
Auto Part # ES20039 Delphi
  • Oxygen Sensor Notes:
    1. Position: Rear
    2. Wrench Size: 7/8 in. Actual OE Part
  • Oxygen Sensor Specs:
    • Fitment: Vehicle Specific
    • Number of Wires: 4

Additional Features

1997 - 1998 Mercury Tracer Oxygen Sensor - Rear 4 Cyl 1.9L Delphi 4
- Additional Product Notes and Features:
  • Shipping Options:
    • Ships Ground, Two-Day, or Next-Day
    • This Product is eligible for International Shipping
  • Manufacturer:
    • Delphi
  • Also Known As:
    • O2 Sensor
  • Suggested Purchase Quantity: 1
    • Most jobs typically require 1 of this item.
View all Details for Delphi ES20039

 [-] Hide  [+] Show   Additional Mercury Fitment Information:
Vehicle Submodel Engine VIN Position Block Engine CID CC
1997 - Mercury Tracer LS   Rear        
1998 - Mercury Tracer LS   Rear        
1996 - Mercury Tracer LS J Rear L 4 Cyl 1.9L 116 -
1999 - Mercury Tracer     Rear        
1997 - Mercury Tracer Trio   Rear        
1998 - Mercury Tracer Trio   Rear        
$42.04
List Price:
$52.97
IN STOCK
OUT OF STOCK
Auto Part # ES20151 Delphi
  • Oxygen Sensor Notes:
    1. Position: Front
    2. Wrench Size: 7/8 in. Actual OE Part
  • Oxygen Sensor Specs:
    • Fitment: Vehicle Specific
    • Number of Wires: 4

Additional Features

1999 - 2000 Mercury Mountaineer Oxygen Sensor - Front 6 Cyl 4.0L Delphi 4
- Additional Product Notes and Features:
  • Shipping Options:
    • Ships Ground, Two-Day, or Next-Day
    • This Product is eligible for International Shipping
  • Manufacturer:
    • Delphi
  • Also Known As:
    • O2 Sensor
  • Suggested Purchase Quantity: 2
    • Most jobs typically require 2 of this item.
View all Details for Delphi ES20151

 [-] Hide  [+] Show   Additional Mercury Fitment Information:
Vehicle Engine VIN Position Block Engine CID CC
1999 - Mercury Mountaineer E Front V 6 Cyl 4.0L 245 -
2001 - Mercury Mountaineer E Front V 6 Cyl 4.0L 245 -
2000 - Mercury Mountaineer E Front V 6 Cyl 4.0L 245 -
$44.55
List Price:
$53.91
IN STOCK
OUT OF STOCK
Auto Part # ES20026 Delphi
  • Oxygen Sensor Notes:
    1. Position: Front
    2. Wrench Size: 7/8 in. Actual OE Part
  • Oxygen Sensor Specs:
    • Fitment: Vehicle Specific
    • Number of Wires: 4

Additional Features

1997 - 1996 Mercury Mystique Oxygen Sensor - Front 4 Cyl 2.0L Delphi 4
- Additional Product Notes and Features:
  • Shipping Options:
    • Ships Ground, Two-Day, or Next-Day
    • This Product is eligible for International Shipping
  • Manufacturer:
    • Delphi
  • Also Known As:
    • O2 Sensor
  • Suggested Purchase Quantity: 1
    • Most jobs typically require 1 of this item.
View all Details for Delphi ES20026

 [-] Hide  [+] Show   Additional Mercury Fitment Information:
Vehicle Submodel Engine VIN Position Block Engine CID CC
1997 - Mercury Mystique LS 3 Front L 4 Cyl 2.0L 121 1989
1996 - Mercury Mystique LS 3 Front L 4 Cyl 2.0L 121 1989
1999 - Mercury Mystique   3 Front L 4 Cyl 2.0L 121 1989
1995 - Mercury Mystique GS Spree 3 Front L 4 Cyl 2.0L 121 1989
1997 - Mercury Mystique GS 3 Front L 4 Cyl 2.0L 121 1989
1999 - Mercury Cougar Base 3 Front L 4 Cyl 2.0L 121 1989
1998 - Mercury Mystique GS 3 Front L 4 Cyl 2.0L 121 1989
1995 - Mercury Mystique LS 3 Front L 4 Cyl 2.0L 121 1989
1996 - Mercury Mystique GS 3 Front L 4 Cyl 2.0L 121 1989
$47.47
List Price:
$61.24
IN STOCK
OUT OF STOCK
Auto Part # ES20025 Delphi
  • Oxygen Sensor Notes:
    1. Position: Front
    2. Wrench Size: 7/8 in. Actual OE Part
  • Oxygen Sensor Specs:
    • Fitment: Vehicle Specific
    • Number of Wires: 4

Additional Features

1997 Mercury Mystique Oxygen Sensor - Front 6 Cyl 2.5L Delphi 4
- Additional Product Notes and Features:
  • Shipping Options:
    • Ships Ground, Two-Day, or Next-Day
    • This Product is eligible for International Shipping
  • Manufacturer:
    • Delphi
  • Also Known As:
    • O2 Sensor
  • Suggested Purchase Quantity: 1
    • Most jobs typically require 1 of this item.
View all Details for Delphi ES20025

 [-] Hide  [+] Show   Additional Mercury Fitment Information:
Vehicle Submodel Engine VIN Position Block Engine CID CC
1997 - Mercury Mystique GS L Front V 6 Cyl 2.5L 155 2450
1995 - Mercury Mystique GS Spree L Front V 6 Cyl 2.5L 155 2450
1995 - Mercury Mystique LS Young America L Front V 6 Cyl 2.5L 155 2450
1996 - Mercury Mystique LS L Front V 6 Cyl 2.5L 155 2450
1998 - Mercury Mystique LS L Front V 6 Cyl 2.5L 155 2450
1996 - Mercury Mystique GS L Front V 6 Cyl 2.5L 155 2450
1997 - Mercury Mystique LS L Front V 6 Cyl 2.5L 155 2450
$62.95
List Price:
$81.84
IN STOCK
OUT OF STOCK
Auto Part # ES20143 Delphi
  • Oxygen Sensor Notes:
    1. Position: Rear
    2. Wrench Size: 7/8 in. Actual OE Part
  • Oxygen Sensor Specs:
    • Fitment: Vehicle Specific
    • Number of Wires: 4

Additional Features

1998 - 1997 Mercury Villager Oxygen Sensor - Rear Delphi 4
- Additional Product Notes and Features:
  • Shipping Options:
    • Ships Ground, Two-Day, or Next-Day
    • This Product is eligible for International Shipping
  • Manufacturer:
    • Delphi
  • Also Known As:
    • O2 Sensor
  • Suggested Purchase Quantity: 1
    • Most jobs typically require 1 of this item.
View all Details for Delphi ES20143

 [-] Hide  [+] Show   Additional Mercury Fitment Information:
Vehicle Position
1998 - Mercury Villager Rear
1996 - Mercury Villager Rear
1997 - Mercury Villager Rear
$52.64
List Price:
$63.69
IN STOCK
OUT OF STOCK
Auto Part # ES20318 Delphi
  • Oxygen Sensor Notes:
    1. Position: Rear
    2. Wrench Size: 7/8 in. Actual OE Part
  • Oxygen Sensor Specs:
    • Fitment: Vehicle Specific
    • Number of Wires: 4

Additional Features

2002 Mercury Cougar Oxygen Sensor - Rear Delphi 4
- Additional Product Notes and Features:
  • Shipping Options:
    • Ships Ground, Two-Day, or Next-Day
    • This Product is eligible for International Shipping
  • Manufacturer:
    • Delphi
  • Also Known As:
    • O2 Sensor
  • Suggested Purchase Quantity: 1
    • Most jobs typically require 1 of this item.
View all Details for Delphi ES20318

 [-] Hide  [+] Show   Additional Mercury Fitment Information:
Vehicle Submodel Engine VIN Position Block Engine CID CC
2002 - Mercury Cougar   L Rear V 6 Cyl 2.5L 155 2450
2001 - Mercury Cougar S G Rear V 6 Cyl 2.5L 155 2450
2000 - Mercury Cougar   L Rear V 6 Cyl 2.5L 155 2450
2000 - Mercury Mystique   L Rear V 6 Cyl 2.5L 155 2450
1998 - Mercury Mystique LS L Rear V 6 Cyl 2.5L 155 2450
1999 - Mercury Mystique   L Rear V 6 Cyl 2.5L 155 2450
2008 - Mercury Sable Base   Rear        
2008 - Mercury Sable Premier   Rear        
2001 - Mercury Cougar V6 L Rear V 6 Cyl 2.5L 155 2450
2002 - Mercury Cougar   3 Rear L 4 Cyl 2.0L 121 1989
$34.75
List Price:
$45.18
IN STOCK
OUT OF STOCK
Auto Part # ES20316 Delphi
  • Oxygen Sensor Notes:
    1. Position: Rear
    2. Wrench Size: 7/8 in. Actual OE Part
  • Oxygen Sensor Specs:
    • Fitment: Vehicle Specific
    • Number of Wires: 4

Additional Features

2004 - 2000 Mercury Sable Oxygen Sensor - Rear Delphi 4
- Additional Product Notes and Features:
  • Shipping Options:
    • Ships Ground, Two-Day, or Next-Day
    • This Product is eligible for International Shipping
  • Manufacturer:
    • Delphi
  • Also Known As:
    • O2 Sensor
  • Suggested Purchase Quantity: 2
    • Most jobs typically require 2 of this item.
View all Details for Delphi ES20316

 [-] Hide  [+] Show   Additional Mercury Fitment Information:
Vehicle Submodel Fuel Type Engine VIN Position Block Engine CID CC
2004 - Mercury Monterey Base     Rear        
2004 - Mercury Sable GS GAS U Rear        
2004 - Mercury Sable LS Premium GAS S Rear        
2000 - Mercury Mountaineer     P Rear V 8 Cyl 5.0L 302 -
2001 - Mercury Sable   FLEX 2 Rear        
2000 - Mercury Sable     S Rear        
1999 - Mercury Mountaineer     P Rear V 8 Cyl 5.0L 302 -
2005 - Mercury Monterey       Rear        
2002 - Mercury Sable     U Rear        
2002 - Mercury Mountaineer   FLEX K Rear V 6 Cyl 4.0L 245 -
2004 - Mercury Monterey Premier     Rear        
2007 - Mercury Monterey       Rear        
2006 - Mercury Monterey       Rear        
2001 - Mercury Sable   GAS U Rear        
2001 - Mercury Sable   GAS S Rear        
2006 - Mercury Milan Base   1 Rear V 6 Cyl 3.0L 183 -
2002 - Mercury Mountaineer   GAS E Rear V 6 Cyl 4.0L 245 -
2005 - Mercury Sable Platinum Edition GAS S Rear        
2003 - Mercury Sable   FLEX 2 Rear        
2004 - Mercury Sable GS FLEX 2 Rear        
2005 - Mercury Sable GS FLEX 2 Rear        
2001 - Mercury Mountaineer     P Rear V 8 Cyl 5.0L 302 -
2002 - Mercury Sable     S Rear        
2003 - Mercury Sable   GAS S Rear        
2006 - Mercury Milan Premier   1 Rear V 6 Cyl 3.0L 183 -
2003 - Mercury Sable   GAS U Rear        
2005 - Mercury Sable GS GAS U Rear        
2000 - Mercury Sable     U Rear