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Land Rover Discovery Oxygen Sensor

We have 7 Items In-stock. Select a year to continue.
$35.34 List Price $41.70 Save $6.36 Availability: In Stock
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UNIVERSAL TYPE OXYGEN SENSOR, HEATED, 4-WIRE, SOLD INDIVIDUALLY

This REPLACEMENT oxygen sensor is crafted from high quality materials - stainless steel shell, hex nut, shield, Teflon-covered insulated wires, high-temperature rubber internal and external seals, and threaded tube coated with anti-seize compound.

Tested to ensure highest level of quality and reliability; it helps to reduce harmful emissions and extends catalyst life.

Notes: May not be compatible with flanges. May require minor modifications

View Installation Instruction

Replacement brand parts are the most affordable solution for your replacement needs! Replacement specializes in a wide range of OE replacement auto parts including body parts, lighting, electrical, brakes, suspension, intake, exhaust, cooling and heating parts. All Replacement brand items are backed by 1-year, unlimited-mileage warranty.

  • SKU#: USOS-4000
  • Brand: Replacement
  • Quantity Sold: Sold Individually
  • Recommended Use: OE Replacement
  • Anticipated Ship Out Time: 1-2 Business Days
  • Includes: Butt type connectors, without plug
  • Mounting Style: Threaded-in
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Fits the following Land Rover Discovery Years:
  • 1996-2004 | All Engines | All Submodels
Rating: (see review/s)

"This is an excellent product at a really good price. Just be careful with the connectors they are delicate." posted by: Master Jedi on January 6, 2015

"I ll recommend your product to all my friends and families. and I ll probably order for more parts from you very soon.I ll recommend your product to all my friends and families. and I ll probably order for more parts from you very soon." posted by: Bakish on November 3, 2014 view all 136 reviews

$70.73 List Price $83.46 Save $12.73 Availability: In Stock
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BOSCH SUPER CLASS OXYGEN SENSOR

Bosch Super Class Oxygen Sensor provides patented catalytically activated fine particle filter that prevents contamination for extended life and ensures precise voltage to the engine's emission control computer, while a second filter doubles protection against exhaust gas contamination that increase sensors life.

Specifications:
  • 4-wire
  • Conical design
  • 13.8 in. wire length
  • Heated
Features:
  • Constructed of premium ceramic technology that incorporates Zirconium or Titania and Yttrium for superior protection against mechanical and thermal shock
  • Patented catalytically activated fine particle filter prevents contamination for extended life and ensures precise voltage to the engine's emission control computer, while a second filter doubles protection against exhaust gas contamination, thereby increasing sensor life
  • Prevents premature failure of the catalytic converter
  • Snug fitting OE-style silicone boots ensure proper fit, function, and appearance
  • Rigorously tested for perfect performance while saving money in fuel costs
  • Direct plug-in, no cutting or splicing required.
  • SKU#: BS15175
  • Brand: Bosch
  • Quantity Sold: Sold Individually
  • Recommended Use: OE Replacement
  • Anticipated Ship Out Time: Same day - 1 business day
  • Warranty: 1 year or unlimited-mileage Bosch limited warranty
  • Wire Length: 13.8 in.
 
Fits the following Land Rover Discovery Years:
  • 2003-2004 | 8 Cyl 4.6L | HSE, S, SE
  • 2001-2002 | 8 Cyl 4.0L | Series II SD, Series II SE
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$90.22 List Price $106.46 Save $16.24 Availability: In Stock
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DENSO REGULAR CLASS OXYGEN SENSOR

Denso Regular Class Oxygen Sensors are specifically designed to meet the challenging demands of today's engines. Each of Denso's Oxygen Sensor is constructed from the highest quality materials available. Manufactured to the OE standards and subjected to rigorous safety and performance tests.

Specifications:
  • 4-wire
  • 11.7 in. lead wire

Features:
  • Constructed from high quality stainless steel, porous polytetrafluoroethylene, fluorine rubber, aluminum oxide, high-grade platinum, and ceramics
  • Double protection layer
  • Aluminum oxide trap layer
  • Porous PTFE filter
  • Stainless steel housing
1 required per vehicle. Requires wire splicing and electrical installation. Reuse your old connector.

  • SKU#: NP2344201
  • Brand: Denso
  • Quantity Sold: Sold Individually
  • Recommended Use: OE Replacement
  • Anticipated Ship Out Time: Same day - 1 business day
  • Replaces OE Number: 9202721
  • Warranty: 1 year Denso limited warranty
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Fits the following Land Rover Discovery Years:
  • 2003-2004 | 8 Cyl 4.6L | HSE, S, SE
  • 2001-2002 | 8 Cyl 4.0L | Series II SD, Series II SE
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$97.56 List Price $115.12 Save $17.56 Availability: In Stock
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WALKER PRODUCTS OXYGEN SENSOR

Walker Products Oxygen Sensors are made to improve engine response and performance. Their typical life expectancy ranges from 30,000 to 60,000 miles if accompanied with regular preventive maintenance while heated oxygen sensors can last 100,000 miles or more.

Specifications:
  • 3-wire

Features:
  • Improves car's engine response and gas mileage
  • Effectively lowers emissions upon replacing its tired old oxygen sensor
  • Exceeds OE specifications and test requirements


  • SKU#: 25023802
  • Brand: Walker Products
  • Fit Note: FI, Naturally Aspirated, GAS
  • Quantity Sold: Sold Individually
  • Recommended Use: OE Replacement
  • Anticipated Ship Out Time: 1-2 Business Days
 
Fits the following Land Rover Discovery Years:
  • 1994-1995 | 8 Cyl 3.9L | Base
$90.37 List Price $312.89 Save $222.52 Availability: In Stock
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NTK SUPER CLASS OE IDENTICAL OXYGEN SENSOR

NTK Oxygen Sensor combines expertise with innovation in order to control the fuel and ignition systems to optimize a car's performance in the areas of emissions and fuel economy.

Specifications:
  • 4-wire
  • 20.47 in. wire length
  • Non-flanged
  • Heated
Features:
  • Precision manufactured with a sensing element incorporating NTK's premier technical ceramics
  • Delivers superior fit, form, and function
  • Extensively tested to guarantee quality and reliability
Supplied with a factory-fitted OEM connector for easy installation. Direct plug-in, no cutting or splicing required.
  • SKU#: NG25017
  • Brand: NTK
  • Fit Note: Without AELS
  • Quantity Sold: Sold Individually
  • Recommended Use: OE Replacement
  • Anticipated Ship Out Time: Same day - 1 business day
  • Mounting Style: Non-flanged
  • Notes: Ships to U.S. addresses only. Cannot be shipped internationally.
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Fits the following Land Rover Discovery Years:
  • 1999 | All Engines | SD, Series II
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$69.32 List Price $81.80 Save $12.48 Availability: In Stock
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DELPHI OXYGEN SENSORS, 4-WIRE -- 18.50 in. overall length, 18 x 1.5 mm thread size, 0.88 in. wrench size, square-4 blade connector type, 100,000 miles inspection interval, heated; OE connectors and wire length are within 3 inches of OE specifications; Unique sensor coatings to resist contamination and ensures long lasting reliable operation; With 1-year or 12,000-mile Delphi warranty.
  • SKU#: DELES10895
  • Brand: Delphi
  • Quantity Sold: Sold Individually
  • Recommended Use: OE Replacement
  • Anticipated Ship Out Time: 1-2 Business Days
  • Thread Size: 18 x 1.5 mm
  • Warranty: 1-year or 12,000-mile Delphi limited warranty
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Fits the following Land Rover Discovery Years:
  • 2003-2004 | 8 Cyl 4.6L | HSE, S, SE
  • 2001-2002 | 8 Cyl 4.0L | Series II SD, Series II SE
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$52.37 List Price $61.80 Save $9.43 Availability: In Stock
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Standard Oxygen Sensor

Standard have been renowned in engineering and distributing an across-the-board line of quality replacement parts. Standard continue their dedication in keeping incomparable service and manufacturing innovative merchandises for numerous vehicle applications.

Standard Oxygen Sensors are constructed from strict manufacturing courses and test equipments that guarantee proper function and durability. These Oxygen Sensors are built to operate along with the other components in the vehicle system for your utmost road experience.

Specifications:

  • 4 Terminal wire
  • SKU#: SISG300
  • Brand: Standard
  • Quantity Sold: Sold Individually
  • Recommended Use: OE Replacement
  • Anticipated Ship Out Time: 1-2 Business Days
  • Connector Gender: Female
  • Warranty: 3-year or 36,000-mile Standard limited warranty
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Fits the following Land Rover Discovery Years:
  • 2003-2004 | 8 Cyl 4.6L | HSE, S, SE
  • 2001-2002 | 8 Cyl 4.0L | Series II SD, Series II SE
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Thanks to its outstanding engine, the Land Rover Discovery is one of the first choices of English royals when it comes to off-road SUVs. This, however, will not be possible without the Land Rover Discovery oxygen sensor. This small device found in different parts of the exhaust system detects rich and lean oxygen-fuel mixture. Through this function, the engine runs more efficiently and only the right amount of fuel is used. A faulty oxygen sensor will make the Land Rover Discovery computer guessing, leading to poor engine performance and increased fuel consumption. With this, a damaged oxygen sensor should be replaced the soonest.

Frequently Asked Questions

Ask APW
  • How long does the Land Rover Discovery oxygen sensor replacement normally take place?
    Answer: Because there are four or more oxygen sensors inside the Land Rover Discovery, replacing these can last from 30 minutes to an hour depending on the DIY skill level of the owner. The replacement involves working under the Land Rover Discovery. Tools to be used include screwdrivers, a ratchet wrench, and an anti-seize compound. Almost anyone can do it as long as guided properly.
  • What is wrong when trouble code P0174 continues to flash even after replacing the oxygen sensor?
    Answer: The P0174 code generally means that an oxygen sensor in the Land Rover Discovery has been detecting a lean mixture in the exhaust system. The initial thing to do is check the engine and exhaust system because the fault may not be with the new oxygen sensor. A probable cause of this issue is through a leak in the exhaust system. This leak can bring in more air for the oxygen sensor to detect, resulting in a lean mixture.
  • How difficult is cleaning an oxygen sensor in the Land Rover Discovery?
    Answer: Varnish, gums, and other contaminants in the exhaust system can cover the oxygen sensor and keep it from working. A dirty Land Rover Discovery oxygen sensor can lead into more serious problems from the catalytic converter and the engine. To make sure that the oxygen sensor is working properly, it is recommended to constantly clean it. Good news is that cleaning the oxygen sensor is fairly easier than cleaning most parts in an automobile. The best way is by adding an auto marine motor treatment to the fuel tank and driving the Land Rover Discovery. The strong solution will break down the build-up in the oxygen sensor. However, the solution contains petroleum distillates that can harm eyes and skin and damage the vehicle's paint. With this, appropriate care should be applied when using the auto marine motor treatment.
  • What are the tools needed in testing the Land Rover Discovery oxygen sensor?
    Answer: The only thing needed in testing the oxygen sensor is an oscilloscope. This is basically a device that measures the changes in signal voltages in electronic devices such as the oxygen sensor. Testing the device involves attaching the oscilloscope to it and driving the Land Rover Discovery for up to 2000 rpm. An oxygen sensor should be replaced if the oscilloscope shows no change or slow response time.