1991 Infiniti Q45 Oxygen Sensor
Navigate our online catalogue to find original replacement Oxygen Sensors specifically designed to fit a 1991 Infiniti Q45.








Oxygen Sensor
$118.62
$88.24
Limited Stock
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 12pm)
Pick-Up: Same Business Day (Order before 12pm)
Upstream Left
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 4.5L 4494cc (-CID) V8 Bore 93.0cm (3.66in.) Stroke 82.7cm (3.26in.);
Engine Base: 4.5L 4494cc (-CID) V8 Bore 93.0cm (3.66in.) Stroke 82.7cm (3.26in.);
Vehicle Fitment Notes:
Alternative Fit 1
Alternative Fit 1







Oxygen Sensor
$118.62
$88.24
Limited Stock
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 12pm)
Pick-Up: Same Business Day (Order before 12pm)
Upstream Right
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 4.5L 4494cc (-CID) V8 Bore 93.0cm (3.66in.) Stroke 82.7cm (3.26in.);
Engine Base: 4.5L 4494cc (-CID) V8 Bore 93.0cm (3.66in.) Stroke 82.7cm (3.26in.);







Oxygen Sensor
$156.18
$114.34
Limited Stock
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 12pm)
Pick-Up: Same Business Day (Order before 12pm)
Upstream Left
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 4.5L 4494cc (-CID) V8 Bore 93.0cm (3.66in.) Stroke 82.7cm (3.26in.);
Engine Base: 4.5L 4494cc (-CID) V8 Bore 93.0cm (3.66in.) Stroke 82.7cm (3.26in.);
Vehicle Fitment Notes:
Exact Fit
Exact Fit







Oxygen Sensor
$124.75
$84.80
Limited Stock
Ships: in 3-4 Business Days
Pick-Up: in 3-4 Business Days
Pick-Up: in 3-4 Business Days
Upstream Left
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 4.5L 4494cc (-CID) V8 Bore 93.0cm (3.66in.) Stroke 82.7cm (3.26in.);
Engine Base: 4.5L 4494cc (-CID) V8 Bore 93.0cm (3.66in.) Stroke 82.7cm (3.26in.);







Oxygen Sensor
$124.75
$84.80
Limited Stock
Ships: in 3-4 Business Days
Pick-Up: in 3-4 Business Days
Pick-Up: in 3-4 Business Days
Upstream Right
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 4.5L 4494cc (-CID) V8 Bore 93.0cm (3.66in.) Stroke 82.7cm (3.26in.);
Engine Base: 4.5L 4494cc (-CID) V8 Bore 93.0cm (3.66in.) Stroke 82.7cm (3.26in.);







Oxygen Sensor
$131.42
$74.70
Limited Stock
Ships: Next Business Day
Pick-Up: Next Business Day
Pick-Up: Next Business Day
Upstream Right
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in Japan
Vehicle fitment:
Engine Base: 4.5L 4494cc (-CID) V8 Bore 93.0cm (3.66in.) Stroke 82.7cm (3.26in.);
Engine Base: 4.5L 4494cc (-CID) V8 Bore 93.0cm (3.66in.) Stroke 82.7cm (3.26in.);
Vehicle Fitment Notes:
B2S1 OE Equivalent Design
B2S1 OE Equivalent Design







Oxygen Sensor
$131.33
$81.13
In Stock
Ships: Today, Oct. 2nd
Pick-Up: Ready in 2-3 Hours (Order before 3:30 PM)
Pick-Up: Ready in 2-3 Hours (Order before 3:30 PM)
Upstream Left
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in Japan
Vehicle fitment:
Engine Base: 4.5L 4494cc (-CID) V8 Bore 93.0cm (3.66in.) Stroke 82.7cm (3.26in.);
Engine Base: 4.5L 4494cc (-CID) V8 Bore 93.0cm (3.66in.) Stroke 82.7cm (3.26in.);
Vehicle Fitment Notes:
B1S1 OE Equivalent Design
B1S1 OE Equivalent Design

Oxygen Sensor
$139.90
$81.19
Limited Stock
Ships: Today, Oct. 2nd
Pick-Up: Ready in 1 Hour (Order before 4:30 PM)
Pick-Up: Ready in 1 Hour (Order before 4:30 PM)
Upstream
Condition: New
Required Per Vehicle: 2
Required Per Vehicle: 2
Made in USA
Vehicle fitment:
Engine Base: 4.5L 4494cc (-CID) V8 Bore 93.0cm (3.66in.) Stroke 82.7cm (3.26in.);
Engine Base: 4.5L 4494cc (-CID) V8 Bore 93.0cm (3.66in.) Stroke 82.7cm (3.26in.);
Vehicle Fitment Notes:
O.E. Quality Direct Fit Replacement Sensor
O.E. Quality Direct Fit Replacement Sensor

Oxygen Sensor
$152.45
$93.31
In Stock
Ships: Today, Oct. 2nd
Pick-Up: Ready in 1 Hour (Order before 4:30 PM)
Pick-Up: Ready in 1 Hour (Order before 4:30 PM)
Upstream
Condition: New
Required Per Vehicle: 2
Required Per Vehicle: 2
Made in USA
Vehicle fitment:
Engine Base: 4.5L 4494cc (-CID) V8 Bore 93.0cm (3.66in.) Stroke 82.7cm (3.26in.);
Engine Base: 4.5L 4494cc (-CID) V8 Bore 93.0cm (3.66in.) Stroke 82.7cm (3.26in.);
Vehicle Fitment Notes:
O.E. Quality Universal Replacement Sensor
O.E. Quality Universal Replacement Sensor





Oxygen Sensor
$154.50
$111.93
Out of Stock
Right (Passenger Side)
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 4.5L 4494cc (-CID) V8 Bore 93.0cm (3.66in.) Stroke 82.7cm (3.26in.);
Engine Base: 4.5L 4494cc (-CID) V8 Bore 93.0cm (3.66in.) Stroke 82.7cm (3.26in.);




Oxygen Sensor
$129.13
$93.53
Out of Stock
Left (Driver Side)
Condition: New
Required Per Vehicle: 2
Required Per Vehicle: 2
Vehicle fitment:
Engine Base: 4.5L 4494cc (-CID) V8 Bore 93.0cm (3.66in.) Stroke 82.7cm (3.26in.);
Engine Base: 4.5L 4494cc (-CID) V8 Bore 93.0cm (3.66in.) Stroke 82.7cm (3.26in.);





Oxygen Sensor
$81.08
$48.85
Call For Availability
Upstream Left
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 4.5L 4494cc (-CID) V8 Bore 93.0cm (3.66in.) Stroke 82.7cm (3.26in.);
Engine Base: 4.5L 4494cc (-CID) V8 Bore 93.0cm (3.66in.) Stroke 82.7cm (3.26in.);




Oxygen Sensor
$100.77
$54.07
Call For Availability
Upstream Right
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 4.5L 4494cc (-CID) V8 Bore 93.0cm (3.66in.) Stroke 82.7cm (3.26in.);
Engine Base: 4.5L 4494cc (-CID) V8 Bore 93.0cm (3.66in.) Stroke 82.7cm (3.26in.);