How should oxygen sensors be handled and installed with 2-O2 and 4-O2 sensor systems on 2003 Dodge Ram 1500 Van?

For vehicles with a 2-O2 sensor system, sensors are at the catalytic converter's inlet and outlet, while 4-O2 systems have them before and after mini-cats. Avoid grease on connectors and ensure the engine cools before removal. Use a removal tool, install the new sensor with factory anti-seize, and tighten to 30 Nm.

OEM 2003 Dodge Ram 1500 Van Oxygen Sensor

Oxygen O2 Sensor

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2003 Dodge Ram 1500 Van Oxygen Sensor, Rear Passenger Side Part Number: 56041845AB
$156.10 MSRP: $236.00
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Product Specifications
- Other Name: Sensor - Oxygen; Oxygen Sensor, Rear, Rear Left, Rear Right; Rear Oxygen Sensor; Sensor Oxygen
- Position: Rear Passenger Side
- Replaces: 56030111AA
- Item Weight: 0.60 Pounds
- Item Dimensions: 4.1 x 1.1 x 1.2 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 56041845AB
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
More Info
Fits the following 2003 Dodge Ram 1500 Van Submodels:
- Base | 6 Cyl 3.9 L GAS, 8 Cyl 5.2 L GAS, 8 Cyl 5.9 L GAS

2003 Dodge Ram 1500 Van Oxygen Sensor Parts and Q&A

Q: How should oxygen sensors be handled and installed with 2-O2 and 4-O2 sensor systems on 2003 Dodge Ram 1500 Van?
A: For vehicles with a 2-O2 sensor system, sensors are at the catalytic converter's inlet and outlet, while 4-O2 systems have them before and after mini-cats. Avoid grease on connectors and ensure the engine cools before removal. Use a removal tool, install the new sensor with factory anti-seize, and tighten to 30 Nm.