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








Oxygen Sensor - Downstream
$211.15
$126.78
Limited Stock
Ships: Monday Sep. 22nd
Pick-Up: Ready in 2-3 Hours Monday Sep. 22nd
Pick-Up: Ready in 2-3 Hours Monday Sep. 22nd
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Aspiration: Naturally Aspirated; Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);
Aspiration: Naturally Aspirated; Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);







Oxygen Sensor - Upstream
$325.90
$323.38
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
Made in Japan
Vehicle fitment:
Aspiration: Turbocharged; Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);
Aspiration: Turbocharged; Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);







Oxygen Sensor - Downstream
$188.83
$119.79
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
Made in USA
Vehicle fitment:
Aspiration: Turbocharged; Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);
Aspiration: Turbocharged; Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);







Oxygen Sensor - Downstream
$188.83
$119.79
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
Made in USA
Vehicle fitment:
Engine Base: 2.0L 1994cc H4 (3.62x2.95; 92.0x75.0); Transmission Control Type: Automatic;
Engine Base: 2.0L 1994cc H4 (3.62x2.95; 92.0x75.0); Transmission Control Type: Automatic;







Oxygen Sensor - Downstream
$188.83
$119.79
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
Made in USA
Vehicle fitment:
Engine Base: 2.0L 1994cc H4 (3.62x2.95; 92.0x75.0); Transmission Control Type: Manual;
Engine Base: 2.0L 1994cc H4 (3.62x2.95; 92.0x75.0); Transmission Control Type: Manual;







Oxygen Sensor - Upstream
$417.82
$392.35
Limited Stock
Ships: Monday Sep. 22nd
Pick-Up: Ready in 2-3 Hours Monday Sep. 22nd
Pick-Up: Ready in 2-3 Hours Monday Sep. 22nd
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in Japan
Vehicle fitment:
Engine Base: 2.0L 1994cc H4 (3.62x2.95; 92.0x75.0);
Engine Base: 2.0L 1994cc H4 (3.62x2.95; 92.0x75.0);







Oxygen Sensor - Downstream
$116.92
$66.63
10+ In Stock
Ships: Monday Sep. 22nd
Pick-Up: Ready in 1 Hour Monday Sep. 22nd
Pick-Up: Ready in 1 Hour Monday Sep. 22nd
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Aspiration: Turbocharged; Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);
Aspiration: Turbocharged; Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);







Oxygen Sensor - Downstream
$116.92
$66.63
10+ In Stock
Ships: Monday Sep. 22nd
Pick-Up: Ready in 1 Hour Monday Sep. 22nd
Pick-Up: Ready in 1 Hour Monday Sep. 22nd
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 2.0L 1994cc H4 (3.62x2.95; 92.0x75.0); Transmission Control Type: Automatic;
Engine Base: 2.0L 1994cc H4 (3.62x2.95; 92.0x75.0); Transmission Control Type: Automatic;







Oxygen Sensor - Downstream
$116.92
$66.63
10+ In Stock
Ships: Monday Sep. 22nd
Pick-Up: Ready in 1 Hour Monday Sep. 22nd
Pick-Up: Ready in 1 Hour Monday Sep. 22nd
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 2.0L 1994cc H4 (3.62x2.95; 92.0x75.0); Transmission Control Type: Manual;
Engine Base: 2.0L 1994cc H4 (3.62x2.95; 92.0x75.0); Transmission Control Type: Manual;







Oxygen Sensor - Downstream
$130.97
$61.46
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
Made in USA
Vehicle fitment:
Aspiration: Naturally Aspirated; Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);
Aspiration: Naturally Aspirated; Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);







Oxygen Sensor - Downstream
$209.88
$114.14
In Stock
Ships: Monday Sep. 22nd
Pick-Up: Ready in 2-3 Hours Monday Sep. 22nd
Pick-Up: Ready in 2-3 Hours Monday Sep. 22nd
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in Japan
Vehicle fitment:
Aspiration: Naturally Aspirated; Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);
Aspiration: Naturally Aspirated; Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);
Vehicle Fitment Notes:
B1S2 OE Equivalent Design
B1S2 OE Equivalent Design







Oxygen Sensor - Downstream
$181.92
$109.31
10+ In Stock
Ships: Monday Sep. 22nd
Pick-Up: Ready in 1 Hour Monday Sep. 22nd
Pick-Up: Ready in 1 Hour Monday Sep. 22nd
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Aspiration: Turbocharged; Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);
Aspiration: Turbocharged; Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);
Vehicle Fitment Notes:
B1S2 OE Equivalent Design
B1S2 OE Equivalent Design







Oxygen Sensor - Downstream
$181.92
$109.31
10+ In Stock
Ships: Monday Sep. 22nd
Pick-Up: Ready in 1 Hour Monday Sep. 22nd
Pick-Up: Ready in 1 Hour Monday Sep. 22nd
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 2.0L 1994cc H4 (3.62x2.95; 92.0x75.0);
Engine Base: 2.0L 1994cc H4 (3.62x2.95; 92.0x75.0);
Vehicle Fitment Notes:
B1S2 OE Equivalent Design
B1S2 OE Equivalent Design

Oxygen Sensor - Downstream
$130.04
$79.58
In Stock
Ships: Monday Sep. 22nd
Pick-Up: Ready in 1 Hour Monday Sep. 22nd
Pick-Up: Ready in 1 Hour Monday Sep. 22nd
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Aspiration: Naturally Aspirated; Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);
Aspiration: Naturally Aspirated; Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);
Vehicle Fitment Notes:
O.E. Quality Universal Replacement Sensor
O.E. Quality Universal Replacement Sensor

Oxygen Sensor - Downstream
$189.86
$116.86
Limited Stock
Ships: Monday Sep. 22nd
Pick-Up: Ready in 1 Hour Monday Sep. 22nd
Pick-Up: Ready in 1 Hour Monday Sep. 22nd
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Aspiration: Naturally Aspirated; Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);
Aspiration: Naturally Aspirated; Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);
Vehicle Fitment Notes:
O.E. Quality Direct Fit Replacement Sensor
O.E. Quality Direct Fit Replacement Sensor

Oxygen Sensor - Downstream
$172.88
$110.89
In Stock
Ships: Monday Sep. 22nd
Pick-Up: Ready in 1 Hour Monday Sep. 22nd
Pick-Up: Ready in 1 Hour Monday Sep. 22nd
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Aspiration: Turbocharged; Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);
Aspiration: Turbocharged; Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);
Vehicle Fitment Notes:
DENSO is the O.E. Manufacturer / Direct Fit Oxygen Sensor OE
DENSO is the O.E. Manufacturer / Direct Fit Oxygen Sensor OE

Oxygen Sensor - Downstream
$172.88
$110.89
In Stock
Ships: Monday Sep. 22nd
Pick-Up: Ready in 1 Hour Monday Sep. 22nd
Pick-Up: Ready in 1 Hour Monday Sep. 22nd
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 2.0L 1994cc H4 (3.62x2.95; 92.0x75.0);
Engine Base: 2.0L 1994cc H4 (3.62x2.95; 92.0x75.0);
Vehicle Fitment Notes:
DENSO is the O.E. Manufacturer / Direct Fit Oxygen Sensor OE
DENSO is the O.E. Manufacturer / Direct Fit Oxygen Sensor OE





Oxygen Sensor - Downstream
$138.34
$74.22
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:
Aspiration: Naturally Aspirated; Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);
Aspiration: Naturally Aspirated; Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);





Oxygen Sensor - Downstream
$115.06
$61.73
In Stock
Ships: Monday Sep. 22nd
Pick-Up: Ready in 1 Hour Monday Sep. 22nd
Pick-Up: Ready in 1 Hour Monday Sep. 22nd
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Aspiration: Turbocharged; Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);
Aspiration: Turbocharged; Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);





Oxygen Sensor - Downstream
$115.06
$61.73
In Stock
Ships: Monday Sep. 22nd
Pick-Up: Ready in 1 Hour Monday Sep. 22nd
Pick-Up: Ready in 1 Hour Monday Sep. 22nd
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 2.0L 1994cc H4 (3.62x2.95; 92.0x75.0);
Engine Base: 2.0L 1994cc H4 (3.62x2.95; 92.0x75.0);







Oxygen Sensor - Upstream
$448.88
$400.91
Out of Stock
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in Japan
Vehicle fitment:
Aspiration: Naturally Aspirated; Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);
Aspiration: Naturally Aspirated; Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);




Oxygen Sensor - Downstream
Call for Pricing
Call For Availability
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);
Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);





Oxygen Sensor - Front
$533.43
$386.40
Out of Stock
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0); Engine Designation: EJ251;
Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0); Engine Designation: EJ251;





Oxygen Sensor - Front
$565.52
$409.63
Out of Stock
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0); Engine Designation: EJ257;
Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0); Engine Designation: EJ257;





Oxygen Sensor - Rear
$226.93
$164.37
Out of Stock
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0); Engine Designation: EJ251;
Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0); Engine Designation: EJ251;





Oxygen Sensor - Rear
$162.86
$117.97
Out of Stock
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 2.0L 1994cc H4 (3.62x2.95; 92.0x75.0);
Engine Base: 2.0L 1994cc H4 (3.62x2.95; 92.0x75.0);





Oxygen Sensor - Rear
$162.86
$117.97
Out of Stock
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0); Engine Designation: EJ257;
Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0); Engine Designation: EJ257;




Oxygen Sensor - Upstream
$620.94
$333.08
Call For Availability
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Aspiration: Naturally Aspirated; Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);
Aspiration: Naturally Aspirated; Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);
Vehicle Fitment Notes:
w/ 4 Wires
w/ 4 Wires







Air / Fuel Ratio Sensor - Upstream
$466.58
$283.37
In Stock
Ships: Monday Sep. 22nd
Pick-Up: Ready in 1 Hour Monday Sep. 22nd
Pick-Up: Ready in 1 Hour Monday Sep. 22nd
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in Japan
Vehicle fitment:
Engine Base: 2.0L 1994cc H4 (3.62x2.95; 92.0x75.0);
Engine Base: 2.0L 1994cc H4 (3.62x2.95; 92.0x75.0);
Vehicle Fitment Notes:
B1S1 OE Equivalent Design
B1S1 OE Equivalent Design







Air / Fuel Ratio Sensor - Upstream
$447.92
$302.78
In Stock
Ships: Monday Sep. 22nd
Pick-Up: Ready in 1 Hour Monday Sep. 22nd
Pick-Up: Ready in 1 Hour Monday Sep. 22nd
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in Japan
Vehicle fitment:
Aspiration: Naturally Aspirated; Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);
Aspiration: Naturally Aspirated; Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);
Vehicle Fitment Notes:
B1S1 OE Equivalent Design
B1S1 OE Equivalent Design







Air / Fuel Ratio Sensor - Upstream
$366.08
$215.82
Limited Stock
Ships: Monday Sep. 22nd
Pick-Up: Ready in 1 Hour Monday Sep. 22nd
Pick-Up: Ready in 1 Hour Monday Sep. 22nd
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in Japan
Vehicle fitment:
Aspiration: Turbocharged; Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);
Aspiration: Turbocharged; Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);
Vehicle Fitment Notes:
B1S1 OE Equivalent Design
B1S1 OE Equivalent Design

Air / Fuel Ratio Sensor - Upstream
$445.95
$300.78
In Stock
Ships: Monday Sep. 22nd
Pick-Up: Available for 8:30am Monday Sep. 22nd
Pick-Up: Available for 8:30am Monday Sep. 22nd
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 2.0L 1994cc H4 (3.62x2.95; 92.0x75.0);
Engine Base: 2.0L 1994cc H4 (3.62x2.95; 92.0x75.0);
Vehicle Fitment Notes:
DENSO is the O.E. Manufacturer / Direct Fit Air Fuel Ratio Sensor OE
DENSO is the O.E. Manufacturer / Direct Fit Air Fuel Ratio Sensor OE

Air / Fuel Ratio Sensor - Upstream
$399.81
$283.08
10+ In Stock
Ships: Monday Sep. 22nd
Pick-Up: Ready in 1 Hour Monday Sep. 22nd
Pick-Up: Ready in 1 Hour Monday Sep. 22nd
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Aspiration: Naturally Aspirated; Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);
Aspiration: Naturally Aspirated; Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);
Vehicle Fitment Notes:
DENSO is the O.E. Manufacturer / Direct Fit Air Fuel Ratio Sensor OE
DENSO is the O.E. Manufacturer / Direct Fit Air Fuel Ratio Sensor OE

Air / Fuel Ratio Sensor - Upstream
$342.51
$244.51
In Stock
Ships: Monday Sep. 22nd
Pick-Up: Ready in 1 Hour Monday Sep. 22nd
Pick-Up: Ready in 1 Hour Monday Sep. 22nd
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in Japan
Vehicle fitment:
Aspiration: Turbocharged; Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);
Aspiration: Turbocharged; Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);
Vehicle Fitment Notes:
DENSO is the O.E. Manufacturer / Direct Fit Air Fuel Ratio Sensor OE
DENSO is the O.E. Manufacturer / Direct Fit Air Fuel Ratio Sensor OE