DENSO 2345712

Product Details Attribute

ANTIFREEZE POISONING
Common Causes: Cracked or warped cylinder head Leaking cylinder head gasket Leaking intake manifold gasket Antifreeze Poisoned O2 Sensor

SILICONE POISONING
Common Causes: Use of an improper silicone gasket sealant on the engine Silicone Poisoned O2 Sensor

CARBON BUILDUP
Common Causes: Clogged air filter Leaking or defective fuel injector Carbon Buildup O2 Sensor

Features & Benefits:

1
Robotic Laser Weld - Ensures proper fit

2
Porous PTFE Filter - Allows atmospheric oxygen to enter the sensor without permitting water or engine contaminants to seep into the casing.

3
Double Protection Cover - Maintains proper unit temperature for quicker response times and protects the ceramic element against silicone and lead poisoning.

4
Stainless Steel Housing - Resists corrosion and contamination with a rugged, watertight body and maximizes engine performance and fuel efficiency while reducing fuel consumption and harmful emissions

5
Aluminum-Oxide Trap Layer - Keeps silicone and lead outside the ceramic element through DENSO's exclusive design, preventing damage to the platinum electrode.

O2 Sensor Identification Guide
An OBD Scan Tool will usually identify Oxygen Sensors by the Bank Number (B1 = Bank 1) and Sensor Number (S1 = Sensor 1). Bank 1 will always contain Cylinder 1, which is located closest to the front of the engine.
Part manufacturers often use different terms than scan 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

SILICONE POISONING

Common Causes:

Use of an improper silicone gasket sealant on the engine

Silicone Poisoned O2 Sensor

CARBON BUILDUP

Common Causes:

Clogged air filter

Leaking or defective fuel injector

Carbon Buildup O2 Sensor

Alternate/OEM Part Number(s)

{Alternate Inventory Numbers: 234-5712}OEM / Interchange Numbers: 11788644371

Warranty Information

Warranty Information:30 Days

CAPA CERTIFIED or NSF CERTIFIED

CAPA Certified or NSF Certified parts bear the seal of independent, third party organizations guaranteeing fitment and quality equal to original equipment. These parts may be required if your insurance company is paying for the repair.

Specifications
Connector Gender	Male
Thread Diameter	0.701 IN
Wire Quantity	5
Wiring Harness Length	13.19 IN

1	Robotic Laser Weld - Ensures proper fit
2	Porous PTFE Filter - Allows atmospheric oxygen to enter the sensor without permitting water or engine contaminants to seep into the casing.
3	Double Protection Cover - Maintains proper unit temperature for quicker response times and protects the ceramic element against silicone and lead poisoning.
4	Stainless Steel Housing - Resists corrosion and contamination with a rugged, watertight body and maximizes engine performance and fuel efficiency while reducing fuel consumption and harmful emissions
5	Aluminum-Oxide Trap Layer - Keeps silicone and lead outside the ceramic element through DENSO's exclusive design, preventing damage to the platinum electrode.