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BOSCH 13519  
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BOSCH 13519 Specifications
Automotive Color / FinishSteel
Connector GenderFemale
Connector ShapeFemale Spade
Heated (Oxygen Sensor)Yes
Housing MaterialMetal
Length (Sealing Surface To End Of Connector)9.842525 in
Mounting TypeFlange
Oxygen Sensor TypeNarrow-band heated
Sensor TypeHeated
Wire Quantity4
Wrench Size22 mm
Bosch Validated Oxygen Sensor
Bosch is the world's leading supplier and original equipment manufacturer of Oxygen Sensors. Bosch invented the automotive oxygen sensor and leads the way in sensor technology and innovation. From overall sensor design to the critical ceramic element, Bosch is known worldwide for quality and performance.

Features & Benefits:
  • Double laser-welded stainless steel body protects against contamination
  • Seared protection tube due to 100% functional quality test
  • Pre-coated threads with anti-seize compound right out of the box
  • True Direct-fit OE connectors and harness
Engine Bank Identification

An OBD Scan Tool will usually identify Oxygen (O2) Sensors by the Bank Number (B1 = Bank 1; B2 = Bank 2) and Sensor Number (S1 = Sensor 1; S2 = Sensor 2, etc.). Bank 1 is not on the same side of the engine for every vehicle.

  • Bank 1 will always contain Cylinder 1. To locate Cylinder 1,
    • Check for cylinder labels on spark plug wires
    • Look for the cylinder that is closest to the front of the engine
    • Refer to your Repair Manual (Found under 'Literature')
  • Bank 2 refers to the bank opposite Bank 1
  • Sensor 1 refers to the sensor before the catalytic converter (Other Terms: Upstream Sensor, Pre-Cat Sensor)
  • Sensor 2+ typically refers to the sensor(s) after the catalytic converter (Other Terms: Downstream Sensor, Post-Cat Sensor)
Engine Bank Identification
Engine Bank Identification
Common O2 Sensor Locations

Vehicle and part manufacturers sometimes use different terms than diagnostic tools to identify sensor positions. Regardless of the vehicle's engine orientation, the right or left bank is determined by viewing the engine from the rear (opposite the drive belts).

A
Upstream Sensor (Before Converter)
B
Downstream Sensor (After Converter)
C
Left or Front Upstream Sensor (Before Converter)
D
Right or Rear Upstream Sensor (Before Converter)


Common O2 Sensor Contaminants

Oxygen (O2) Sensors commonly fail due to contamination. When checking or replacing an O2 Sensor, visually inspect the sensor body to determine if it has been contaminated by a faulty part or substance upstream, and correct the fault before replacing the sensor.

ANTIFREEZE POISONING
Common Causes:
  • Cracked or warped cylinder head
  • Leaking cylinder head gasket
  • Leaking intake manifold gasket
Antifreeze Poisoned O2 Sensor
Antifreeze Poisoned O2 Sensor
SILICONE POISONING
Common Causes:
  • Use of an improper silicone gasket sealant on the engine

Silicone Poisoned O2 Sensor
Silicone Poisoned O2 Sensor
CARBON BUILDUP
Common Causes:
  • Clogged air filter
  • Leaking or defective fuel injector

Carbon Buildup O2 Sensor
Carbon Buildup O2 Sensor
Videos

Replacing a Bosch Oxygen Sensor

Additional Resources

Bosch Oxygen Sensor Tech Tips
Bosch Oxygen Sensor Technologies

Warranty Information:
12 Months
Warranty Details