Denso® - Oxygen Sensor

0 reviews|Item # mpn472993 View Similar Products
In Stock (75) - Ships within 24 hrs
1985 Volkswagen Quantum
Fits Following Model(s):
  • Please Select Vehicle Below
Select Vehicle
Add To Cart
Add to Wishlist
Authorized Dealer

Have a Question? Ask a Specialist

888.577.6964Live Chat
Low Prices. Price match guarantee
Guaranteed Fitment. Always the correct part
In-House Experts. We know our products
Easy Returns. Quick & Hassle Free
Select VehicleSelected Vehicle
Do not see your vehicle here?   View similar products

Product Details

Volkswagen Quantum 1985, Oxygen Sensor (234-1011) by Denso®. Position: Upstream. 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.


O2 Sensor Configuration: Direct Fit
Position: Upstream
Sensor Type: Non Heated
Connector Gender: Female
Wires Quantity: 1 Wire Lead
Installation Type: Screw
Wire Harness Length: 21.81" (554 mm)
Thread Diameter: 0.71" (18 mm)


  • 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.

Part Number:


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

Audi Quattro
1986 Audi Quattro
1985 Audi Quattro
1984 Audi Quattro
1983 Audi Quattro
Audi 4000
1987 Audi 4000 Quattro
1986 Audi 4000 Quattro
1985 Audi 4000 Quattro
1984 Audi 4000 Quattro
Audi 5000
1985 Audi 5000
  • C Engine VIN Character
1984 Audi 5000
  • C Engine VIN Character
1983 Audi 5000
  • C Engine VIN Character
1982 Audi 5000
  • C Engine VIN Character
DeLorean DMC 12
1983 DeLorean DMC 12
1982 DeLorean DMC 12
1981 DeLorean DMC 12
Eagle Medallion
1989 Eagle Medallion
1988 Eagle Medallion
Nissan 200SX
1988 Nissan 200SX
  • 2.0L
1987 Nissan 200SX
  • 2.0L
1986 Nissan 200SX
  • 2.0L
Nissan Axxess
1991 Nissan Axxess
  • FWD Manufactured Before May
1990 Nissan Axxess
  • FWD
Nissan Micra
1991 Nissan Micra
  • 1.2L
1990 Nissan Micra
  • 1.2L
1989 Nissan Micra
  • 1.2L
1988 Nissan Micra
  • 1.2L
1987 Nissan Micra
  • 1.2L
1986 Nissan Micra
  • 1.2L
Nissan Multi
1988 Nissan Multi
1987 Nissan Multi
1986 Nissan Multi
Nissan Pick Up
1996 Nissan Pick Up
  • 2.4L Manufactured Before January
1995 Nissan Pick Up
  • 2.4L
1994 Nissan D21
  • 2.4L
1993 Nissan D21
  • 2.4L
1992 Nissan D21
  • 2.4L
1991 Nissan D21
  • 2.4L
1990 Nissan D21
  • 2.4L
1986 Nissan D21
  • 2.4L Manufactured After May
Nissan Pulsar
1989 Nissan Pulsar NX
  • 1.8L
1988 Nissan Pulsar NX
Nissan Sentra
1988 Nissan Sentra
1987 Nissan Sentra
  • FI 1.6L
Nissan Stanza
1991 Nissan Stanza
1990 Nissan Stanza
1989 Nissan Stanza
1988 Nissan Stanza
  • Sedan
1987 Nissan Stanza
  • Sedan
1986 Nissan Stanza
  • 4WD 2.0L
Renault Fuego
1985 Renault Fuego
  • 2.2L
1984 Renault Fuego
  • 1.6L / 2.2L
1983 Renault Fuego
  • 1.6L
1982 Renault Fuego
  • 1.6L
Renault Le Car
1983 Renault Le Car
1982 Renault Le Car
1981 Renault Le Car
1980 Renault Le Car
Renault R-Series
1986 Renault R18i
1985 Renault R-Series
  • 2.2L
1984 Renault R-Series
  • 2.2L
1983 Renault R18i
1982 Renault R18i
1981 Renault R18i
1981 Renault R18
Saab 99
1980 Saab 99
1979 Saab 99
1978 Saab 99
1977 Saab 99
Saab 900
1994 Saab 900
  • 2.3L
1985 Saab 900
1984 Saab 900
1983 Saab 900
1982 Saab 900
1981 Saab 900
1980 Saab 900
1979 Saab 900
Subaru Brat
1987 Subaru Brat
1986 Subaru Brat
1985 Subaru Brat
1984 Subaru Brat
1983 Subaru Brat
1982 Subaru Brat
1981 Subaru Brat
Subaru Justy
1987 Subaru Justy
Subaru L-Series
1989 Subaru L-Series
  • CARB
1988 Subaru L-Series
  • CARB
1987 Subaru L-Series
1986 Subaru L-Series
1985 Subaru L-Series
1984 Subaru L-Series
1983 Subaru L-Series
1982 Subaru L-Series
1981 Subaru L-Series
1980 Subaru L-Series
Subaru Standard
1987 Subaru Standard
1986 Subaru Standard
1985 Subaru Standard
1984 Subaru Standard
1983 Subaru Standard
1982 Subaru Standard
1981 Subaru Standard
1980 Subaru Standard
Subaru XT
1987 Subaru XT
1986 Subaru XT
1985 Subaru XT
Volkswagen Golf
1987 Volkswagen Golf
  • 1.8L
1986 Volkswagen Golf
  • 1.8L
1985 Volkswagen Golf
  • 1.8L
Volkswagen Jetta
1986 Volkswagen Jetta
  • GL 1.8L
1985 Volkswagen Jetta
  • 1.8L GX Engine
Volkswagen Quantum
1985 Volkswagen Quantum
  • 2.2L
Volvo 240 Series
1985 Volvo 244 / 245
  • 2.1L
1984 Volvo 242 / 244 / 245
  • 2.1L / 2.3L
1983 Volvo 242 / 244 / 245
  • 2.1L / 2.3L
1982 Volvo 242 / 244 / 245
  • 2.1L
1981 Volvo 240 Series
  • 2.1L
1980 Volvo 240 Series
1979 Volvo 240 Series
1978 Volvo 240 Series
1977 Volvo 240 Series
Volvo 260 Series
1982 Volvo 264
1981 Volvo 260 Series
  • 2.1L / 2.8L
1980 Volvo 260 Series
  • 2.1L / 2.8L
Volvo DL
1984 Volvo DL
Volvo 760
1984 Volvo 760
  • 2.8L
1983 Volvo 760
  • 2.8L
Low Prices Price match guarantee
Guaranteed Fitment Always the correct part
In-House Experts We know our products
Easy Returns Quick & Hassle Free

All manufacturer names, symbols, and descriptions, used in our images and text are used solely for identification purposes only. It is neither inferred nor implied that any item sold by is a product authorized by or in any way connected with any vehicle manufacturers displayed on this page.