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2023 TOYOTA TUNDRA : Fuel, Exhaust and Emissions
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Oxygen Sensor (Upper)

Part Number: 8946734021
Supersession(s): 8946734020; 8946735070; 89467-34021; 8946734021
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Sensor. Oxygen.
Air-Fuel Ratio Sensor. Calif. Oxygen Sensor. Air Fuel RAT. Ratio. Ft bracket. Snsr.

Fits 4RUNNER, TUNDRA

2.7 LITER, fuel ratio, California, manual trans. 3.4 LITER, CALIFORNIA EMISSIONS, auto trans. 3.4 LITER, FEDERAL EMISSIONS, auto trans. Tundra; 3.4L; Front; California; Auto Trans.
Oxygen Sensor - Repair or Replace
A failed Oxygen Sensor will often have no noticeable symptoms beyond a check engine light, but it does cause your 2023 TOYOTA TUNDRA to operate inefficiently and produce higher emissions. Our technicians have access to manufacturer-approved repair processes and TOYOTA genuine parts.

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Full Diagram
Diagram SWITCH & RELAY for your 2023 TOYOTA TUNDRA
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(9511- )RZN18# ENGINE & TRANSMISSION ILLUST NO. 1 OF 7 from 199511.
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SWITCH & RELAY
Full Diagram
Diagram SWITCH & RELAY for your 2023 TOYOTA TUNDRA
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(0008- ) ENGINE & TRANSMISSION ILLUST NO. 1 OF 7 from 200008.
RZN18#; 5F
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Full Diagram
Diagram SWITCH & RELAY for your 2023 TOYOTA TUNDRA
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SWITCH & RELAY
Full Diagram
Diagram SWITCH & RELAY for your 2023 TOYOTA TUNDRA
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(9902-0408)VCK30,40 ENGINE & TRANSMISSION ILLUST NO. 1 OF 8 from 199902 to 200408.
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SWITCH & RELAY
Full Diagram
Diagram SWITCH & RELAY for your 2023 TOYOTA TUNDRA
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(9807-0008)VZN18# ENGINE & TRANSMISSION ILLUST NO. 1 OF 7 from 199807 to 200008.
RZN18#; 5F
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Full Diagram
Diagram SWITCH & RELAY for your 2023 TOYOTA TUNDRA
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(0408- )GSK30 ENGINE & TRANSMISSION ILLUST NO. 1 OF 8 from 200408.
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EMISSION SYSTEM. EMISSION COMPONENTS.
Full Diagram
Diagram EMISSION SYSTEM. EMISSION COMPONENTS. for your 2023 TOYOTA TUNDRA
#9
2. 7 liter. 2WD. 4WD. Auto TRANS. California. Front. Fuel ratio. Manual TRANS. Rear.
2.7 LITER. California. fuel ratio. manual trans.
EMISSION SYSTEM. EMISSION COMPONENTS.
Full Diagram
Diagram EMISSION SYSTEM. EMISSION COMPONENTS. for your 2023 TOYOTA TUNDRA
#3
California emissions. 3. 4 liter. Auto TRANS. Manual TRANS.
3.4 LITER. auto trans. CALIFORNIA EMISSIONS.
EMISSION SYSTEM. EMISSION COMPONENTS.
Full Diagram
Diagram EMISSION SYSTEM. EMISSION COMPONENTS. for your 2023 TOYOTA TUNDRA
#3
3. 4 liter. Auto TRANS. Federal emissions. Manual TRANS.
3.4 LITER. auto trans. FEDERAL EMISSIONS.

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MSRP: $ 285.41

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