Denso® 234-4071 - Oxygen Sensor

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$24.52
In Stock (2006) - Ships within 24 hrs
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Replaces Original (OE) Part #:88Z9F472AB
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Product Details

Oxygen Sensor (234-4071) by Denso®. Position: Downstream. Denso's light duty oxygen sensor started to appear on vehicles with the development of fuel injection systems. The basic job of the sensor is to monitor the air fuel mixture under idle, moderate acceleration and cruise conditions.

Specifications:

O2 Sensor Configuration: Direct Fit
Position: Downstream
Sensor Type: Heated
Connector Gender: Male
Wires Quantity: 4 Wire Leads
Installation Type: Screw
Wire Harness Length: 10.83" (275.1 mm)
Thread Diameter: 0.71" (18 mm)

Features:

  • Corrosion-resistant stainless steel construction
  • PTFE filter blocks efficiency-robbing contaminants
  • Refined zirconia element improves sensor response
  • Superior design maximizes engine performance and fuel efficiency while reducing fuel consumption and harmful emissions
  • Ensures smog test compliance

Under heavy acceleration the oxygen sensor goes into "open loop," which basically means that the engine management computer system ignores the oxygen sensor. Oxygen sensors have a smaller range of limits in detecting and adjusting the difference from an optimum air/fuel ratio.

As the automotive industry continues to improve on their standards Denso is keeping the pace with advancements in engineering to meet the demands from the industry. Also, as car owners are holding on to their vehicles for longer periods, Denso continues to make auto parts available for those critical replacement parts for all applications.

Oxygen sensors, also known as Lambda sensors or O2 sensors among some vehicle manufacturers, are among the most sensitive and critical components on your car's engine. Earlier fuel injection systems employed one oxygen sensor in the exhaust system to maintain closed-loop air/fuel mixture control. However, today's engines may use as many as four sensors, which monitor not only exhaust gas oxygen content but catalytic converter efficiency as well. In order to perform these functions properly, the sensors must adhere to OE standards within incredibly close tolerances. A malfunctioning or incorrectly calibrated oxygen sensor can hurt driveability and illuminate the malfunction indicator, resulting in costly and time-consuming repairs. Denso First Time Fit™ oxygen sensors are designed to meet those tolerances and more. The Denso oxygen sensor catalog offers one of the most complete product lines in the industry, from Acura to Volvo.

Denso® factories are QS9000 and ISO9000 certified worldwide, just one of the many reasons why zero defects for parts produced in the millions is a reality for DENSO. A recipient of the prestigious Deming Award for quality in 1961, Denso spent over five decades perfecting technology and processes, a claim that few automotive manufacturers can make. Denso First Time Fit™ products — including A/C compressors, starters, alternators, oxygen sensors, ignition wire sets, fuel pumps, cabin air, oil and air filters, wiper blades and more — are products built and tested to OE-standard offered for the aftermarket by DENSO. Each of these products is precision-built for exact replacement so you don't have to worry about doing the same job twice.

Brand:
Part Number:
234-4071
UPC:
042511140714
OE Numbers:
88Z9F472AB

Warranty

Limited warranty policy

For First Time Fit replacement light-duty automotive products

Denso Sales California, Inc. (“Denso”) warrants to the end user that the Denso First Time Fit brand aftermarket products, described below, shall be free of defects in materials and workmanship and will function in accordance with Denso’s published specifications, under ordinary intended use and service, for a period of twelve (12) months/unlimited miles after delivery to the end-user. Denso shall replace any defective product covered by this warranty. Such remedy shall be the end-user’s sole remedy with respect to any covered defect in the products.

This warranty does not cover defects or malfunctions, which result from causes beyond Denso’s control, including, without limitation, (1) unusual physical or electrical stress; (2) an accident, neglect, abuse, misuse or other abnormal use; (3) a failure to perform routine maintenance in accordance with specific vehicle manufacturer’s recommended procedures; (4) normal wear and tear; (5) product repairs or attempted product repairs by an unauthorized person; (6) alterations or modifications to the product; or (7) improper servicing. This warranty shall extend only to the original end-user.

The aforesaid warranty is the only warranty made by Denso with respect to the products and is in lieu of all obligations or liabilities on the part of Denso for damages arising out of or in connection with the sale, use or performance of the products, including, without limitation, any consequential, incidental, special or exemplary damages of any kind. Denso disclaims all other warranties with regard to the products, including all implied warranties of merchantability and fitness for use. There are no warranties that extend beyond the description contained herein.

This warranty supersedes any other warranty statement and may also give you specific legal rights which may vary from state to state.

Excluded from this warranty are products which are subject to normal wear and tear, such as filters, ignition wires, oxygen sensors, spark plugs, wiper blades, etc.

Warrantable products

  • Air conditioning system: evaporators, compressors, compressor clutches, condensers
  • Engine cooling system: radiators
  • Fuel delivery system: fuel injectors, fuel pump assemblies, fuel pumps, fuel sending units
  • Ignition system: direct ignition coils (C.O.P.)
  • Rotating electrical: alternators, starters
Magnuson-Moss Warranty Act:
Legally, a vehicle manufacturer cannot void the warranty on a vehicle due to an aftermarket part unless they can prove that the aftermarket part caused or contributed to the failure in the vehicle (per the Magnuson Moss Warranty Act (15 U.S.C. 2302(C)) Learn More

Vehicle Fitment

Ford Aerostar
1995 Ford Aerostar
  • 3.0L
1994 Ford Aerostar
  • 3.0L
1993 Ford Aerostar
  • 3.0L
1992 Ford Aerostar
  • 3.0L
Ford Bronco
1996 Ford Bronco
1995 Ford Bronco
  • 5.0L
  • 5.8L With Federal Emissions
1994 Ford Bronco
1993 Ford Bronco
1992 Ford Bronco
  • 5.0L / 5.8L
1991 Ford Bronco
  • 5.0L / 5.8L
Ford E-series
2001 Ford E-150 Econoline / E-150 Econoline Club Wagon / E-250 Econoline
  • 4.2L With Federal Emissions
2000 Ford E-150 Econoline / E-150 Econoline Club Wagon / E-250 Econoline
  • 4.2L With Federal Emissions
1999 Ford E-150 Econoline / E-150 Econoline Club Wagon
  • 5.4L
1999 Ford E-250 Econoline / E-350 Econoline Club Wagon / E-350 Super Duty
  • 5.4L Bi-Fuel / Gas
1999 Ford E-150 Econoline / E-150 Econoline Club Wagon / E-250 Econoline
  • 4.2L With California Emissions / With Federal Emissions
1999 Ford E-350 Econoline Club Wagon / E-350 Super Duty / Econoline Super Duty
  • 6.8L
1998 Ford E-150 Econoline / E-150 Econoline Club Wagon / E-250 Econoline
  • 4.2L
1998 Ford E-350 Econoline / E-350 Econoline Club Wagon / Econoline Super Duty
  • 6.8L
1998 Ford E-250 Econoline / E-350 Econoline / E-350 Econoline Club Wagon
  • 5.4L Bi-Fuel / Gas
1998 Ford E-150 Econoline / E-150 Econoline Club Wagon / Econoline Super Duty
  • 5.4L
1997 Ford E-series
  • 4.2L
1996 Ford E-series
  • 7.5L
1996 Ford E-250 Econoline / E-350 Econoline / E-350 Econoline Club Wagon / Econoline Super Duty
  • 5.8L
1996 Ford E-150 Econoline / E-150 Econoline Club Wagon
1996 Ford E-250 Econoline / E-350 Econoline / E-350 Econoline Club Wagon
  • 4.9L
1995 Ford E-series
  • 4.9L
1995 Ford E-150 Econoline / E-150 Econoline Club Wagon
  • 5.0L
1995 Ford E-150 Econoline / E-150 Econoline Club Wagon / E-250 Econoline
  • 5.8L With Federal Emissions
1994 Ford E-series
  • 4.9L
1994 Ford E-150 Econoline / E-150 Econoline Club Wagon
  • 5.0L / 5.8L
1994 Ford E-250 Econoline
  • 5.8L With Gross Vehicle Weight Under 8500 Lbs
1993 Ford E-series
  • 5.0L
1993 Ford E-150 Econoline / E-150 Econoline Club Wagon / E-350 Econoline / E-350 Econoline Club Wagon
  • 4.9L
1993 Ford E-250 Econoline
  • 5.8L With Gross Vehicle Weight Under 8500 Lbs
1993 Ford E-150 Econoline / E-150 Econoline Club Wagon
  • 5.8L
1992 Ford E-series
  • 5.0L
1992 Ford E-150 Econoline / E-150 Econoline Club Wagon / E-350 Econoline / E-350 Econoline Club Wagon
  • 4.9L
1992 Ford E-250 Econoline
  • 5.8L With Gross Vehicle Weight Under 8500 Lbs
1992 Ford E-150 Econoline / E-150 Econoline Club Wagon
  • 5.8L
1991 Ford E-series
  • 4.9L / 5.0L
1991 Ford E-150 Econoline / E-150 Econoline Club Wagon
  • 5.8L
1991 Ford E-250 Econoline / E-250 Econoline Club Wagon
  • 5.8L With Gross Vehicle Weight Under 8500 Lbs
Ford Expedition
1998 Ford Expedition
1997 Ford Expedition
Ford Explorer
2005 Ford Explorer
2004 Ford Explorer
2003 Ford Explorer
  • 4.0L Gas
2002 Ford Explorer
  • 4.0L Gas
2001 Ford Explorer
  • 5.0L
  • 4.0L
2000 Ford Explorer
  • 5.0L
  • E Engine VIN Character
1999 Ford Explorer
  • 5.0L
  • E Engine VIN Character
1998 Ford Explorer
  • E / P Engine VIN Character
  • P / X Engine VIN Character
1997 Ford Explorer
  • 5.0L
  • E Engine VIN Character
1996 Ford Explorer
  • 5.0L
Ford F-150
2000 Ford F-150
  • 2 / L Engine VIN Character With Federal Emissions
1999 Ford F-150
  • 2 / L / Z Engine VIN Character
  • Fits Models with Federal Emissions.
  • 2 / L / Z Engine VIN Character With Federal Emissions
1998 Ford F-150
  • Bi-Fuel / Gas
1997 Ford F-150
  • 4.2L / 4.6L / 5.4L
1996 Ford F-150
1995 Ford F-150
  • N Engine VIN Character
  • Y / Z Engine VIN Character Automatic Transmission With California Emissions
  • H Engine VIN Character With Federal Emissions
1994 Ford F-150
  • 5.0L
  • 5.8L H Engine VIN Character
1993 Ford F-150
  • 5.0L
  • 5.8L H Engine VIN Character
1992 Ford F-150
  • 5.0L / 5.8L
1991 Ford F-150
  • 5.0L / 5.8L
Ford F-250
1999 Ford F-250
  • 5.4L Bi-Fuel / Gas With Federal Emissions
1999 Ford F-250 Super Duty
  • 5.4L
1998 Ford F-250
  • Bi-Fuel / Gas
1997 Ford F-250
  • 4.6L
  • 5.4L Gas
1997 Ford F-250 HD
  • 7.5L Standard Transmission
1996 Ford F-250
  • 4.9L / 5.0L
  • 5.8L With Gross Vehicle Weight Under 8500 Lbs
  • 7.5L Standard Transmission With California Emissions
  • 5.8L Automatic Transmission With California Emissions With Gross Vehicle Weight Over 8500 Lbs
1995 Ford F-250
  • 5.0L
  • L6 4-Speed With California Emissions
  • 5.8L 4-Speed With Federal Emissions With Gross Vehicle Weight Under 8500 Lbs
1994 Ford F-250
  • 5.0L
  • 5.8L With Gross Vehicle Weight Under 8500 Lbs
1993 Ford F-250
  • 5.0L
  • 5.8L With Gross Vehicle Weight Under 8500 Lbs
1992 Ford F-250
  • 5.0L
  • 5.8L With Gross Vehicle Weight Under 8500 Lbs
1991 Ford F-250
  • 5.0L
  • 5.8L With Gross Vehicle Weight Under 8500 Lbs
Ford F-350
1999 Ford F-350 Super Duty
  • 5.4L
1997 Ford F-350
  • 5.8L
  • 7.5L Standard Transmission With California Emissions
1996 Ford F-350
  • 4.9L
  • 5.8L Automatic Transmission With California Emissions
  • 7.5L Standard Transmission With California Emissions
Ford Mustang
2001 Ford Mustang
  • 4 / V Engine VIN Character
1999 Ford Mustang
  • V Engine VIN Character
Ford Ranger
2011 Ford Ranger
  • 2.3L
  • 4.0L
2010 Ford Ranger
  • 2.3L
  • 4.0L
2009 Ford Ranger
  • 2.3L
  • 4.0L
2008 Ford Ranger
  • 2.3L
  • 3.0L / 4.0L
2007 Ford Ranger
  • 2.3L
  • 3.0L / 4.0L
2006 Ford Ranger
2005 Ford Ranger
2004 Ford Ranger
2003 Ford Ranger
2002 Ford Ranger
  • Flex / Gas
2001 Ford Ranger
  • Flex
  • 2.5L Gas
  • 2.3L / 3.0L / 4.0L Gas
2000 Ford Ranger
  • Flex
  • 2.5L Gas
  • 3.0L / 4.0L Gas
1999 Ford Ranger
  • Flex
  • 2.5L Gas
  • 3.0L / 4.0L Gas
1998 Ford Ranger
  • 3.0L / 4.0L Gas
1997 Ford Ranger
  • 3.0L / 4.0L
Ford Sport Trac
2003 Ford Sport Trac
2002 Ford Sport Trac
2001 Ford Sport Trac
Ford Windstar
2003 Ford Windstar
2002 Ford Windstar
2001 Ford Windstar
2000 Ford Windstar
  • 3.0L
1999 Ford Windstar
  • 3.0L
1998 Ford Windstar
1997 Ford Windstar
1996 Ford Windstar
1995 Ford Windstar
Jaguar S-Type
2002 Jaguar S-Type
  • 4.0L
2001 Jaguar S-Type
  • 4.0L
2000 Jaguar S-Type
  • 4.0L
Lincoln Navigator
1998 Lincoln Navigator
Mazda B-Series
2010 Mazda B-Series
  • 4.0L
2009 Mazda B-Series
  • 4.0L
2008 Mazda B-Series
  • 3.0L / 4.0L
2007 Mazda B-Series
  • 3.0L / 4.0L
2006 Mazda B-Series
  • 3.0L / 4.0L
2005 Mazda B-Series
  • 3.0L / 4.0L
2004 Mazda B-Series
  • 3.0L / 4.0L
2003 Mazda B-Series
  • 3.0L / 4.0L
2002 Mazda B-Series
  • 3.0L / 4.0L
2001 Mazda B-Series
  • 2.5L Gas
  • 3.0L / 4.0L
2000 Mazda B-Series
  • 2.5L Gas
  • 3.0L / 4.0L
1999 Mazda B-Series
  • 2.5L Gas
  • 3.0L / 4.0L
1998 Mazda B-Series
  • 3.0L / 4.0L
1997 Mazda B-Series
  • 4.0L
Mercury Mountaineer
2005 Mercury Mountaineer
2004 Mercury Mountaineer
2002 Mercury Mountaineer
  • 4.0L Gas
2001 Mercury Mountaineer
  • 5.0L
  • 4.0L
2000 Mercury Mountaineer
  • 5.0L
  • 4.0L
1999 Mercury Mountaineer
  • 5.0L
  • 4.0L
1998 Mercury Mountaineer
  • 5.0L
1997 Mercury Mountaineer

Reviews

(1)

Every Customer can leave a review about our service and the product that was purchased. In order to leave your review for your new product, please follow the link in the email you receive after completing your purchase. You can rate appearance, ease of installation, price/value and product quality.

Denso® - Oxygen Sensor
Denso® 234-4071 - Oxygen Sensor
Average Rating: 5 of 5
5 of 5
Oxygen Sensor
Denso® 234-4071 - Oxygen Sensor
Product quality and manufacturing was great, well packaged and boxes well marked with model. Materials are good quality and sturdy. Already installed and fitment was A 1 very easy.
Posted by (Madawaska, ME) / 2003 Ford Sport Trac
Was this review helpful for you? Yes
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