Brands Vehicles
Lowest Prices
Free Returns
Online Since 2009
Shopping for

1985 Buick Century

X

ACDelco AFS21 Oxygen Sensor
for 1985 Buick Century

ACDelco AFS21 Oxygen Sensor - 1985 Buick Century Image 1
ACDelco AFS21 Oxygen Sensor - 1985 Buick Century Image 2
ACDelco AFS21 Oxygen Sensor - 1985 Buick Century Image 3
ACDelco AFS21 Oxygen Sensor - 1985 Buick Century

ACDelco
Brand:ACDelco
Part Number: AFS21
UPC: 00707773489673
Weight: 0.2 lbs
Condition:New



Availability:
0 in Stock
 OUT OF STOCK

Product Information

Description:

Get the ACDelco AFS21 Oxygen Sensor for your 1985 Buick Century. Buy now and secure your purchase online!

GM Genuine Parts Oxygen (O2) Sensors are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These sensors are special feedback sensors on your vehicle's exhaust system and measure the proportion of oxygen in exhaust gases. Using this measurement, the engine control module (ECM) can adjust the air/fuel ratio to near the optimal value of 14.7:1. At this ratio, engine performance, emissions, and fuel economy are all optimized. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE). ⚠ WARNING: Cancer and Reproductive Harm - https://www.P65Warnings.ca.gov

Features and Benefits:

  • Detects oxygen content in the exhaust gases to help optimize emissions
  • GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
  • GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
  • GM regularly updates production and service part designs to integrate new materials and technologies
  • Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)

Specifications:

Connector Gender:
Female
Connector Shape:
Round
Height (in):
3 in
Length (in):
16.91 in
Length (mm):
429.7 mm
Mounting Type:
POSN 1
Programming Required:
No
Sensor Type:
Non Heated
Thread Diameter:
18 mm
Universal Or Specific Fit:
Specific
Weight (lb):
0.2 lb
Width (in):
3 in
Wire Gauge Measurement:
18 Gauge
Wire Quantity:
1
Wiring Harness Length:
343.4 mm
Country of Origin:
US

ACDelco AFS21 Oxygen Sensor compatibility with your 1985 Buick Century...

Last Updated: 03/02/2024

Years Vehicle Per Vehicle Position Fit NotesFitment Notes

1987

 

1986

 

1985

 

1984

 

1987

 

1986

 

1985

 

1984

 
Buick Century

3.8L V6 Gas OHV
1
 
Upstream
 
MATING CONN USE 12117385
IN EXH MANIFOLD/CROSSOVER)(TYPE #20)(1 WIRE
 

Buick Century



3.8L V6 Gas OHV

Upstream MATING CONN USE 12117385
IN EXH MANIFOLD/CROSSOVER)(TYPE #20)(1 WIRE

1 Per Vehicle

1987

 

1986

 

1985

 

1984

 

1983

 

1982

 

1987

 

1986

 

1985

 

1984

 

1983

 

1982

 
Buick Century

2.5L L4 Gas OHV
1
 
Upstream
 
MATING CONN USE 12117385
IN EXH MANIFOLD/CROSSOVER)(TYPE #20)(1 WIRE
 

Buick Century



2.5L L4 Gas OHV

Upstream MATING CONN USE 12117385
IN EXH MANIFOLD/CROSSOVER)(TYPE #20)(1 WIRE

1 Per Vehicle

1985

 

1984

 

1983

 

1982

 

1985

 

1984

 

1983

 

1982

 
Buick Century

3.0L V6 Gas OHV,
4.3L V6 Diesel OHV
1
 
Upstream
 
MATING CONN USE 12117385
IN EXH MANIFOLD/CROSSOVER)(TYPE #20)(1 WIRE
 

Buick Century



3.0L V6 Gas OHV,
4.3L V6 Diesel OHV

Upstream MATING CONN USE 12117385
IN EXH MANIFOLD/CROSSOVER)(TYPE #20)(1 WIRE

1 Per Vehicle

Didn't find a match for your vehicle?

  See Other Choices



Customers who bought ACDelco AFS21 Oxygen Sensor also purchased