2004 Chevrolet Trailblazer EXT Oxygen Sensors
Save up to 40% on original replacement 2004 Chevrolet Trailblazer EXT Oxygen Sensors. Navigate our online catalogue to find Oxygen Sensors and other parts designed specifically to fit a 2004 Chevrolet Trailblazer EXT.








Oxygen Sensor - Downstream
$129.92
$69.97
10+ In Stock
Ships: Monday Sep. 22nd
Pick-Up: Ready in 1 Hour Saturday Sep. 20th
Pick-Up: Ready in 1 Hour Saturday Sep. 20th
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 4.2L 256ci L6 (3.66x4.00; 93.0x102.0);
Engine Base: 4.2L 256ci L6 (3.66x4.00; 93.0x102.0);







Oxygen Sensor - Downstream
$129.92
$69.97
10+ In Stock
Ships: Monday Sep. 22nd
Pick-Up: Ready in 1 Hour Saturday Sep. 20th
Pick-Up: Ready in 1 Hour Saturday Sep. 20th
Condition: New
Required Per Vehicle: 2
Required Per Vehicle: 2
Made in USA
Vehicle fitment:
Engine Base: 5.3L 5328cc 325ci V8 (3.78x3.62; 96.0x92.0);
Engine Base: 5.3L 5328cc 325ci V8 (3.78x3.62; 96.0x92.0);







Oxygen Sensor - Upstream
$129.92
$69.97
10+ In Stock
Ships: Monday Sep. 22nd
Pick-Up: Ready in 1 Hour Saturday Sep. 20th
Pick-Up: Ready in 1 Hour Saturday Sep. 20th
Condition: New
Required Per Vehicle: 2
Required Per Vehicle: 2
Made in USA
Vehicle fitment:
Engine Base: 5.3L 5328cc 325ci V8 (3.78x3.62; 96.0x92.0);
Engine Base: 5.3L 5328cc 325ci V8 (3.78x3.62; 96.0x92.0);







Oxygen Sensor - Downstream
$85.55
$54.88
In Stock
Ships: Monday Sep. 22nd
Pick-Up: Ready in 1 Hour Saturday Sep. 20th
Pick-Up: Ready in 1 Hour Saturday Sep. 20th
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 4.2L 256ci L6 (3.66x4.00; 93.0x102.0);
Engine Base: 4.2L 256ci L6 (3.66x4.00; 93.0x102.0);







Oxygen Sensor - Downstream
$121.58
$66.76
10+ In Stock
Ships: Monday Sep. 22nd
Pick-Up: Ready in 1 Hour Saturday Sep. 20th
Pick-Up: Ready in 1 Hour Saturday Sep. 20th
Condition: New
Required Per Vehicle: 2
Required Per Vehicle: 2
Made in USA
Vehicle fitment:
Engine Base: 5.3L 5328cc 325ci V8 (3.78x3.62; 96.0x92.0);
Engine Base: 5.3L 5328cc 325ci V8 (3.78x3.62; 96.0x92.0);







Oxygen Sensor - Upstream
$94.48
$60.41
In Stock
Ships: Monday Sep. 22nd
Pick-Up: Ready in 1 Hour Saturday Sep. 20th
Pick-Up: Ready in 1 Hour Saturday Sep. 20th
Condition: New
Required Per Vehicle: 2
Required Per Vehicle: 2
Made in USA
Vehicle fitment:
Engine Base: 5.3L 5328cc 325ci V8 (3.78x3.62; 96.0x92.0);
Engine Base: 5.3L 5328cc 325ci V8 (3.78x3.62; 96.0x92.0);







Oxygen Sensor - Downstream
$110.25
$63.12
In Stock
Ships: Monday Sep. 22nd
Pick-Up: Ready in 1 Hour Saturday Sep. 20th
Pick-Up: Ready in 1 Hour Saturday Sep. 20th
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in Japan
Vehicle fitment:
Engine Base: 4.2L 256ci L6 (3.66x4.00; 93.0x102.0);
Engine Base: 4.2L 256ci L6 (3.66x4.00; 93.0x102.0);
Vehicle Fitment Notes:
B1S2 OE MFR: NTK
B1S2 OE MFR: NTK







Oxygen Sensor - Downstream Left
$124.25
$69.61
In Stock
Ships: Monday Sep. 22nd
Pick-Up: Ready in 1 Hour Saturday Sep. 20th
Pick-Up: Ready in 1 Hour Saturday Sep. 20th
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in Japan
Vehicle fitment:
Engine Base: 5.3L 5328cc 325ci V8 (3.78x3.62; 96.0x92.0);
Engine Base: 5.3L 5328cc 325ci V8 (3.78x3.62; 96.0x92.0);
Vehicle Fitment Notes:
B1S2 OE MFR: NTK
B1S2 OE MFR: NTK







Oxygen Sensor - Downstream Right
$124.25
$69.61
In Stock
Ships: Monday Sep. 22nd
Pick-Up: Ready in 1 Hour Saturday Sep. 20th
Pick-Up: Ready in 1 Hour Saturday Sep. 20th
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in Japan
Vehicle fitment:
Engine Base: 5.3L 5328cc 325ci V8 (3.78x3.62; 96.0x92.0);
Engine Base: 5.3L 5328cc 325ci V8 (3.78x3.62; 96.0x92.0);
Vehicle Fitment Notes:
B2S2 OE MFR: NTK
B2S2 OE MFR: NTK







Oxygen Sensor - Upstream
$120.95
$113.51
In Stock
Ships: Monday Sep. 22nd
Pick-Up: Ready in 1 Hour Saturday Sep. 20th
Pick-Up: Ready in 1 Hour Saturday Sep. 20th
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in Japan
Vehicle fitment:
Engine Base: 4.2L 256ci L6 (3.66x4.00; 93.0x102.0);
Engine Base: 4.2L 256ci L6 (3.66x4.00; 93.0x102.0);
Vehicle Fitment Notes:
B1S1 OE MFR: NTK
B1S1 OE MFR: NTK







Oxygen Sensor - Upstream Left
$124.42
$77.63
10+ In Stock
Ships: Monday Sep. 22nd
Pick-Up: Ready in 1 Hour Saturday Sep. 20th
Pick-Up: Ready in 1 Hour Saturday Sep. 20th
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 5.3L 5328cc 325ci V8 (3.78x3.62; 96.0x92.0);
Engine Base: 5.3L 5328cc 325ci V8 (3.78x3.62; 96.0x92.0);
Vehicle Fitment Notes:
B1S1 OE MFR: NTK
B1S1 OE MFR: NTK







Oxygen Sensor - Upstream Right
$124.42
$77.63
10+ In Stock
Ships: Monday Sep. 22nd
Pick-Up: Ready in 1 Hour Saturday Sep. 20th
Pick-Up: Ready in 1 Hour Saturday Sep. 20th
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 5.3L 5328cc 325ci V8 (3.78x3.62; 96.0x92.0);
Engine Base: 5.3L 5328cc 325ci V8 (3.78x3.62; 96.0x92.0);
Vehicle Fitment Notes:
B2S1 OE MFR: NTK
B2S1 OE MFR: NTK





Oxygen Sensor - Rear
$125.16
$100.04
In Stock
Ships: Monday Sep. 22nd
Pick-Up: Ready in 1 Hour Saturday Sep. 20th
Pick-Up: Ready in 1 Hour Saturday Sep. 20th
Condition: New
Required Per Vehicle: 2
Required Per Vehicle: 2
Vehicle fitment:
Engine Base: 5.3L 5328cc 325ci V8 (3.78x3.62; 96.0x92.0);
Engine Base: 5.3L 5328cc 325ci V8 (3.78x3.62; 96.0x92.0);





Oxygen Sensor - Rear
$125.16
$100.04
In Stock
Ships: Monday Sep. 22nd
Pick-Up: Ready in 1 Hour Saturday Sep. 20th
Pick-Up: Ready in 1 Hour Saturday Sep. 20th
Condition: New
Required Per Vehicle: 2
Required Per Vehicle: 2
Vehicle fitment:
Engine Base: 5.3L 5328cc 325ci V8 (3.78x3.62; 96.0x92.0); Region: Canada;
Engine Base: 5.3L 5328cc 325ci V8 (3.78x3.62; 96.0x92.0); Region: Canada;





Oxygen Sensor - Rear
$125.16
$100.04
In Stock
Ships: Monday Sep. 22nd
Pick-Up: Ready in 1 Hour Saturday Sep. 20th
Pick-Up: Ready in 1 Hour Saturday Sep. 20th
Condition: New
Required Per Vehicle: 2
Required Per Vehicle: 2
Vehicle fitment:
Engine Base: 5.3L 5328cc 325ci V8 (3.78x3.62; 96.0x92.0); Region: United States;
Engine Base: 5.3L 5328cc 325ci V8 (3.78x3.62; 96.0x92.0); Region: United States;





Oxygen Sensor - Rear
$113.86
$90.99
In Stock
Ships: Monday Sep. 22nd
Pick-Up: Ready in 1 Hour Saturday Sep. 20th
Pick-Up: Ready in 1 Hour Saturday Sep. 20th
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 4.2L 256ci L6 (3.66x4.00; 93.0x102.0);
Engine Base: 4.2L 256ci L6 (3.66x4.00; 93.0x102.0);





Oxygen Sensor - Rear
$113.86
$90.99
In Stock
Ships: Monday Sep. 22nd
Pick-Up: Ready in 1 Hour Saturday Sep. 20th
Pick-Up: Ready in 1 Hour Saturday Sep. 20th
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 4.2L 256ci L6 (3.66x4.00; 93.0x102.0); Region: Canada;
Engine Base: 4.2L 256ci L6 (3.66x4.00; 93.0x102.0); Region: Canada;





Oxygen Sensor - Rear
$113.86
$90.99
In Stock
Ships: Monday Sep. 22nd
Pick-Up: Ready in 1 Hour Saturday Sep. 20th
Pick-Up: Ready in 1 Hour Saturday Sep. 20th
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 4.2L 256ci L6 (3.66x4.00; 93.0x102.0); Region: United States;
Engine Base: 4.2L 256ci L6 (3.66x4.00; 93.0x102.0); Region: United States;

Oxygen Sensor - Upstream
$114.77
$73.75
In Stock
Ships: Monday Sep. 22nd
Pick-Up: Ready in 1 Hour Saturday Sep. 20th
Pick-Up: Ready in 1 Hour Saturday Sep. 20th
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 4.2L 256ci L6 (3.66x4.00; 93.0x102.0);
Engine Base: 4.2L 256ci L6 (3.66x4.00; 93.0x102.0);
Vehicle Fitment Notes:
O.E. Quality Direct Fit Replacement Sensor
O.E. Quality Direct Fit Replacement Sensor

Oxygen Sensor - Downstream
$72.45
$73.96
10+ In Stock
Ships: Monday Sep. 22nd
Pick-Up: Ready in 1 Hour Saturday Sep. 20th
Pick-Up: Ready in 1 Hour Saturday Sep. 20th
Condition: New
Required Per Vehicle: 2
Required Per Vehicle: 2
Made in USA
Vehicle fitment:
Engine Base: 5.3L 5328cc 325ci V8 (3.78x3.62; 96.0x92.0);
Engine Base: 5.3L 5328cc 325ci V8 (3.78x3.62; 96.0x92.0);
Vehicle Fitment Notes:
O.E. Quality Universal Replacement Sensor
O.E. Quality Universal Replacement Sensor

Oxygen Sensor - Upstream
$72.45
$73.96
10+ In Stock
Ships: Monday Sep. 22nd
Pick-Up: Ready in 1 Hour Saturday Sep. 20th
Pick-Up: Ready in 1 Hour Saturday Sep. 20th
Condition: New
Required Per Vehicle: 2
Required Per Vehicle: 2
Made in USA
Vehicle fitment:
Engine Base: 5.3L 5328cc 325ci V8 (3.78x3.62; 96.0x92.0);
Engine Base: 5.3L 5328cc 325ci V8 (3.78x3.62; 96.0x92.0);
Vehicle Fitment Notes:
O.E. Quality Universal Replacement Sensor
O.E. Quality Universal Replacement Sensor

Oxygen Sensor - Downstream
$64.54
$62.32
In Stock
Ships: Monday Sep. 22nd
Pick-Up: Ready in 1 Hour Saturday Sep. 20th
Pick-Up: Ready in 1 Hour Saturday Sep. 20th
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 4.2L 256ci L6 (3.66x4.00; 93.0x102.0);
Engine Base: 4.2L 256ci L6 (3.66x4.00; 93.0x102.0);
Vehicle Fitment Notes:
O.E. Quality Direct Fit Replacement Sensor
O.E. Quality Direct Fit Replacement Sensor

Oxygen Sensor - Downstream
$104.98
$66.02
In Stock
Ships: Monday Sep. 22nd
Pick-Up: Ready in 1 Hour Saturday Sep. 20th
Pick-Up: Ready in 1 Hour Saturday Sep. 20th
Condition: New
Required Per Vehicle: 2
Required Per Vehicle: 2
Made in USA
Vehicle fitment:
Engine Base: 5.3L 5328cc 325ci V8 (3.78x3.62; 96.0x92.0);
Engine Base: 5.3L 5328cc 325ci V8 (3.78x3.62; 96.0x92.0);
Vehicle Fitment Notes:
O.E. Quality Direct Fit Replacement Sensor OE
O.E. Quality Direct Fit Replacement Sensor OE

Oxygen Sensor - Upstream
$68.62
$68.73
In Stock
Ships: Monday Sep. 22nd
Pick-Up: Ready in 1 Hour Saturday Sep. 20th
Pick-Up: Ready in 1 Hour Saturday Sep. 20th
Condition: New
Required Per Vehicle: 2
Required Per Vehicle: 2
Made in USA
Vehicle fitment:
Engine Base: 5.3L 5328cc 325ci V8 (3.78x3.62; 96.0x92.0);
Engine Base: 5.3L 5328cc 325ci V8 (3.78x3.62; 96.0x92.0);
Vehicle Fitment Notes:
O.E. Quality Direct Fit Replacement Sensor OE
O.E. Quality Direct Fit Replacement Sensor OE




Oxygen Sensor - Upstream
$70.13
$37.62
Limited Stock
Ships: Monday Sep. 22nd
Pick-Up: Ready in 1 Hour Saturday Sep. 20th
Pick-Up: Ready in 1 Hour Saturday Sep. 20th
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 4.2L 256ci L6 (3.66x4.00; 93.0x102.0);
Engine Base: 4.2L 256ci L6 (3.66x4.00; 93.0x102.0);




Oxygen Sensor - Downstream
$65.13
$34.93
Limited Stock
Ships: Next Business Day
Pick-Up: Next Business Day
Pick-Up: Next Business Day
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 4.2L 256ci L6 (3.66x4.00; 93.0x102.0);
Engine Base: 4.2L 256ci L6 (3.66x4.00; 93.0x102.0);







Oxygen Sensor - Upstream
$101.47
$100.13
Out of Stock
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in Japan
Vehicle fitment:
Engine Base: 4.2L 256ci L6 (3.66x4.00; 93.0x102.0);
Engine Base: 4.2L 256ci L6 (3.66x4.00; 93.0x102.0);







Oxygen Sensor - Upstream Left
$124.42
$60.24
Out of Stock
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in Japan
Vehicle fitment:
Engine Base: 5.3L 5328cc 325ci V8 (3.78x3.62; 96.0x92.0);
Engine Base: 5.3L 5328cc 325ci V8 (3.78x3.62; 96.0x92.0);
Vehicle Fitment Notes:
B1S1 Sell Out & Reorder 21516 OE MFR: NTK
B1S1 Sell Out & Reorder 21516 OE MFR: NTK







Oxygen Sensor - Upstream Right
$124.42
$60.24
Out of Stock
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in Japan
Vehicle fitment:
Engine Base: 5.3L 5328cc 325ci V8 (3.78x3.62; 96.0x92.0);
Engine Base: 5.3L 5328cc 325ci V8 (3.78x3.62; 96.0x92.0);
Vehicle Fitment Notes:
B2S1 Sell Out & Reorder 21516 OE MFR: NTK
B2S1 Sell Out & Reorder 21516 OE MFR: NTK





Oxygen Sensor - Front
$129.81
$94.03
Out of Stock
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 4.2L 256ci L6 (3.66x4.00; 93.0x102.0);
Engine Base: 4.2L 256ci L6 (3.66x4.00; 93.0x102.0);





Oxygen Sensor - Front
$129.81
$94.03
Out of Stock
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 4.2L 256ci L6 (3.66x4.00; 93.0x102.0); Region: Canada;
Engine Base: 4.2L 256ci L6 (3.66x4.00; 93.0x102.0); Region: Canada;





Oxygen Sensor - Front
$129.81
$94.03
Out of Stock
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 4.2L 256ci L6 (3.66x4.00; 93.0x102.0); Region: United States;
Engine Base: 4.2L 256ci L6 (3.66x4.00; 93.0x102.0); Region: United States;




Oxygen Sensor - Front
$137.28
$99.44
Out of Stock
Condition: New
Required Per Vehicle: 2
Required Per Vehicle: 2
Vehicle fitment:
Engine Base: 5.3L 5328cc 325ci V8 (3.78x3.62; 96.0x92.0);
Engine Base: 5.3L 5328cc 325ci V8 (3.78x3.62; 96.0x92.0);




Oxygen Sensor - Front
$137.28
$99.44
Out of Stock
Condition: New
Required Per Vehicle: 2
Required Per Vehicle: 2
Vehicle fitment:
Engine Base: 5.3L 5328cc 325ci V8 (3.78x3.62; 96.0x92.0); Region: Canada;
Engine Base: 5.3L 5328cc 325ci V8 (3.78x3.62; 96.0x92.0); Region: Canada;




Oxygen Sensor - Front
$137.28
$99.44
Out of Stock
Condition: New
Required Per Vehicle: 2
Required Per Vehicle: 2
Vehicle fitment:
Engine Base: 5.3L 5328cc 325ci V8 (3.78x3.62; 96.0x92.0); Region: United States;
Engine Base: 5.3L 5328cc 325ci V8 (3.78x3.62; 96.0x92.0); Region: United States;




Oxygen Sensor - Downstream Left
$84.63
$45.40
Call For Availability
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 5.3L 5328cc 325ci V8 (3.78x3.62; 96.0x92.0);
Engine Base: 5.3L 5328cc 325ci V8 (3.78x3.62; 96.0x92.0);




Oxygen Sensor - Downstream Right
$84.63
$45.40
Call For Availability
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 5.3L 5328cc 325ci V8 (3.78x3.62; 96.0x92.0);
Engine Base: 5.3L 5328cc 325ci V8 (3.78x3.62; 96.0x92.0);




Oxygen Sensor - Upstream Left
$196.88
$117.33
Call For Availability
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 5.3L 5328cc 325ci V8 (3.78x3.62; 96.0x92.0);
Engine Base: 5.3L 5328cc 325ci V8 (3.78x3.62; 96.0x92.0);




Oxygen Sensor - Upstream Right
$196.88
$117.33
Call For Availability
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 5.3L 5328cc 325ci V8 (3.78x3.62; 96.0x92.0);
Engine Base: 5.3L 5328cc 325ci V8 (3.78x3.62; 96.0x92.0);