Chevrolet Express 2500 Oxygen Sensor Replacement

Located In Exhaust Pipe Y Before Catalytic Converter

Bank 2 Sensor 1

2nd Design; w/ 12581346 Marked On Sensor

Oxygen Sensor; POST CONVERTER; 1st Design; USED ON VEHICLES With RIGHT HAND O2 SENSOR MARKED 25333812) (FOR 2ND DESIGN SEE 19209805; MATES WITH CONNECTOR PT1373

Bank 2 Sensor 2

2nd Design - Right OEM Sensor Length 12.25"

Over GVW 8,500 Lbs.

B2S2

Cutaway Van

Located in RH Manifold B2S1 OE Equivalent Design

1st Design - Right OEM Sensor Length 14.75"

O.E. Quality Direct Fit Replacement Sensor

B2S2

Second Production

1st Design - Right OEM Sensor Length 14.75"

2nd Design - Right OEM Sensor Length 12.25"

First Production

Over GVW 8,500 Lbs.

B2S1

B2S1

B2S2

B2S2 OE MFR: NTK

1st Design - Right OEM Sensor Length 14.75"

1st Design - Right OEM Sensor Length 14.75"

with14.8" Right Upstream & Downstream Sensors O.E. Quality Direct Fit Replacement Sensor OE

Located in LH Manifold B1S1 GVW Over 8,500 Lbs OE Equivalent Design

Cutaway Van

w/ Tier 2 Federal Emission (RPO NT8), and w/ California Level 2 Emission (RPO NU1), and w/ California Level 2 Plus Emission (RPO NU4)

B2S2

2nd Design

Located in Exhaust Pipe Y Before Catalyst B1S2 OE Equivalent Design

1st Design

B2S1

B2S1

w/o Diesel, Rear 6.6 Liter

B2S2 OE MFR: NTK

B2S2 2nd Design; Sensor Marked 12581346 OE Equivalent Design

B2S2 1st Design; Sensor Marked 25333812 OE Equivalent Design

w/ Tier 2 Federal Emission (RPO NT8), and w/ California Level 2 Emission (RPO NU1), and w/ California Level 2 Plus Emission (RPO NU4)

B2S1 OE Equivalent Design

O.E. Quality Direct Fit Replacement Sensor

Upstream Sensor in Y Pipe O.E. Quality Direct Fit Replacement Sensor

O.E. Quality Direct Fit Replacement Sensor

GVW Over 8,500 Lbs. O.E. Quality Direct Fit Replacement Sensor

O.E. Quality Direct Fit Replacement Sensor OE

O.E. Quality Direct Fit Replacement Sensor

O.E. Quality Universal Replacement Sensor

O.E. Quality Direct Fit Replacement Sensor OE

Over 8500 lb Gross Vehicle Weight (GVW)

Grade: Aftermarket Description: 3 Cables / 300 mm For Vehicles With Electric Reactor System Air Injection With OE No. 01997264

DENSO is the O.E. Manufacturer / Direct Fit Oxygen Sensor OE

with 375mm Overall Length Over 8,500lb Gross Vehicle Weight (GVW)

Oxygen Sensor; EMISSIONS SYSTEM (ABOVE 8500 LB GVW) (NA4); PRE CONVERTER

Oxygen Sensor; POST CONVERTER; 2nd Design; USED ON VEHICLES With RIGHT HAND O2 SENSOR MARKED 19209805) (FOR 1st DESIGN SEE 19209808

Oxygen Sensor; POST CONVERTER; MATING CONNECTOR WITH LEADS USE PT2786

Oxygen Sensor; PRE CONVERTER

Oxygen Sensor; PRE CONVERTER