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20 Best 2004 Toyota Sienna O2 Sensor Diagram of 2023 – Romance University

After hours researching and comparing all models on the market, Romance University finds out the Best 2004 Toyota Sienna O2 Sensor Diagram of 2023. Check our ranking below.

2,853 Reviews Scanned

Rank No. #1

HiSport Oxygen Sensor 250-24420 Replacement - 4-Wire Direct Fit, Heated O2 Sensor Downstream Located, Replaces 234-4149 1 Pack

🚗 [ Fitment ] - This oxygen sensor is a replacement for Lexus GS450h: 2013 - 2018, HS250h: 2010 - 2012, LS460: 2009 - 2017, RX330: 2004 - 2006, RX350: 2007 - 2014, RX400h: 2006 - 2008, RX450h: 2010; Scion iQ: 2012 - 2015, tC: 2005 - 2010, xB: 2008 - 2015; Toyota Camry: 2002 - 2003, Corolla iM: 2017 - 2018, Highlander: 2004 - 2013, Sienna: 2004 - 2015, Solara: 2002 - 2003, Venza: 2009 - 2015
🚗 [ PART NUMBER FITS ] - Please check your vehicle's parts Number, It must in our fitment OEM number: 234-4149 250-24420
🚗 [ Meet or Exceed OE Standard ] - HiSport oxygen sensors are manufactured under the highest standards, with anti-oxidant coating, durable and resistant to oxidation and high temperatures, ensuring long-term stable performance. All oxygen sensors are tested by our QA department before the packing. It may cause the test solution to remain on the sensor surface, does not affect the use
🚗 [ EASY TO INSTALL ] - Direct Plug-In installation, All HiSport oxygen sensors are easy to be replaced in your vehicle, and all parts are pre-installed to assist installation
🚗 [ REMINDERS ] - Please must read our description and pictures carefully to check details about our sensors, especially the plug, it must be completely the same, Or it will not fit your vehicle. Please carefully confirm the fitment with our description, if you can not make sure about your vehicle's fitment, you can contact us to get more information you need.

SaleRank No. #2

Denso 234-4209 Universal Oxygen Sensor with 11.5” 4-Wire Harness (connectors not included)

Manufactured to the highest O.E. quality, guaranteed to fit right
Does NOT include the connectors
Aluminum oxide trap, this extra layer helps to protect from silicone and lead poisoning
Stainless steel housing and porous Teflon filter all contribute to make a long life
Improved engine performance and greater fuel efficiency

Rank No. #3

Marsflex Air Fuel Ratio O2 Oxygen Sensor Upstream 234-9042 Compatible with Toyota Camry Sienna Solara Highlander Lexus RX350 RX400h ES330 ES300 Replacement 89467-06040 89467-0E030

🔧Cautions: Please check your vehicle fitment carefully in the product description to avoid any wrong purchase. Please check your part pictures with our pictures, especially the plug, it must be completely same. Or it will not fit your car
🔧Application: Marsflex Oxygen Sensor 234-9042 fit for 2004-2008 Solara V6 3.3L, 2004-2007 Highlander V6 3.3L, 2002-2006 Camry Camry LE V6 3.0L, 2006. 2002-2003 Camry SE V6 3.0L, 2004-2005 Camry SE V6 3.3L, 2002-2006 Camry XLE V6 3.0L, 2004-2005 Sienna V6 3.3L. Fit for Lexus 2010-2011 RX350 Base V6 3.5L, 2007 RX350 Base V6 3.5L, 2004-2006 RX330 Base V6 3.3L, 2006-2008 RX400h Base V6 3.3L, 2002-2006 ES330 Base V6 3.3L, 2002-2004 ES300 Base V6 3.0L
🔧Advantage: Made of high-quality materials, strong durability, to ensure service life, Marsflex O2 Sensor can improve engine performance and fuel economy,extend Catalytic Converter life
🔧Easy Installation: Total length 14.1 inch. Manufactured to OE specification fit form and function, durable and easy installation
🔧Warranty: 1-YEAR WARRANTY. ALL Marsflex oxygen sensors are extensively tested during manufacturing to guarantee quality, reliability, and above all, always meet or exceed the original equipment specifications

SaleRank No. #4

Denso 234-9047 Air Fuel Ratio Sensor

Efficient Fuel Consumption
Highly accurate
Easy installation
Constructed from durable material

Rank No. #5

higherbro 4x Oxygen Sensor For 2004 2005 2006 Toyota Sienna 3.3L Upper Lower Upstream + Downstream

Fit 2004-2006 Toyota Sienna 3.3L;
Installation: 4pcs; 2x Upstream(Air Fuel Ratio Sensor) + 2x Downstream
One Year Quality Guarantee
Before buying, check the “Select Your Vehicle” check (Make, model, year, engine, Note,The engine and Note in particular) at the top of the link to see if your car can be used.

SaleRank No. #6

Denso 234-4168 Downstream Oxygen Sensor with 4-Wire 13.7” Harness

Efficient Fuel Consumption
Easy installation
Constructed from high quality material
Manufactured with precision to meet OE standards

Rank No. #7

Vinrold Oxygen o2 Sensor Downstream for Toyota 2004-2013 Highlander 2004-15 Sienna 09-15 Venza Lexus RX350 05-10 Scion TC 08-15 XB

Important Note: Before buying, note the length of wires, type of connectors, and number of wires. Also, check instructions and compatibility charts (Year, Make, Model, Engine and other notes)
Downstream sensor for Lexus gs450h hs250h ls460 rx330 rx350 rx400h rx450h Scion IQ TC XB Toyota camry highlander sienna solara venza
Coated threads are easy to install, this design provides double protection and the wires are very strong
Intall-These O2 Sensor sets are designed for quick and easy installation and perfect replacement
This comes with 30 days hassle-free return & 1 year unlimited replacement promise

Rank No. #8

Downstream Rear Oxygen Sensor Replacement for Toyota Sienna 2004-2006 3.3L 2007-2010 3.5L

Direct Fit: Manufactured to OE Specification Fit Form and Function. Please Check the Plug, Fitment, Notes and Description for Accurate Information
Fitment: Replacement for Toyota Sienna 2004-2006 V6 3.3L 3MZFE, Sienna 2007-2010 V6 3.5L 2GRFE, Sienna 2015 V6 3.5L 2GRFE (From 09/2014), Sienna 2016 V6 3.5L 2GRFE
Location: Downstream Rear; Note: 2015-2016 Toyota Sienna Exc. Base/CE Model
Replace OE Number: 8946508030, 8946508070, 250-24645, 25024645
Warranty: One-year Warranty. All YHTAUTO Oxygen Sensors are Easy to Install on Your Vehicle, And Come with Pre-coated Threads to Assist Installation

SaleRank No. #9

Denso 234-4516 OE Heated 4-Wire Downstream Oxygen Sensor 15.75”

Designed to detect the amount of oxygen in the exhaust system
Constructed from high quality material
Features double protection layer, aluminum oxide trap layer, PTFE filter and stainless steel housing
Manufactured with precision to meet OE standards
Easy installation

SaleRank No. #10

Denso 234-4512 Oxygen Sensor

Designed to detect the amount of oxygen in the exhaust system
Constructed from high quality material
Features double protection layer, aluminum oxide trap layer, PTFE filter and stainless steel housing
Manufactured with precision to meet OE standards
Easy installation

Rank No. #11

Vinrold Oxygen o2 Sensor Upstream for 2004-2006 Toyota Camry 3.3L/08-11 Camry 3.5L/04-10 Highlander 3.3L 3.5L /08-12 Rav4 4 cyl 2.5L 3.5L for Lexus 4 Wire-Heated

IMPORTANT NOTE: Before buying, note the length of wires, type of connectors, and number of wires. Also, check instructions and compatibility charts (Year, Make, Model, Engine and other notes)
375 MM overall length. REPLACEMENT FOR Nissan Armada Titan oxygen sensor
GUARRANTED FIT: Direct-fit OE connectors and harness
HIGH QUALITY: Premium sensor design increases sensor longevity
INTERCHANGE NUMBER: 234-9022, 234-9042, 234-9089

Rank No. #12

Upstream Oxygen o2 Sensor for 2004-10 Toyota Sienna 3.3/3.5L Rear 09-13 Highlander 2.7L 15-19 Subaru Outback Legacy 3.6L Assessed Auto

PRODUCT ENGINEERING: Based on OE expertise, and specifically engineered for the aftermarket, Assessed Oxygen Sensors offer superior OE fit, form, function
ASSESSED ADVANTAGE: Superior dual-coated platinum interface and thinner ceramic element produces fastest light off and response times with Better durability
OE TECHNOLOGY: Upgraded to the latest OE technologies, Assessed Oxygen Sensors are designed to reduce failures, enhance durability and performance
EXTENSIVE TESTING: OE development includes vibration and thermal shock testing. Testing during manufacturing guarantees quality and reliability
EXTENSIVE TESTING: OE development includes vibration and thermal shock testing. Testing during manufacturing guarantees quality and reliability

Rank No. #13

A-Premium O2 Oxygen Sensor Compatible with Toyota Camry, Highlander, Sienna, Solara & Lexus LS460, RX330, RX350, RX400H, RX450H & Scion IQ, TC, XB, Replace# 89465-68050, 89465-0E020

[Vehicle Fitment]: "Downstream Left": Compatible with Lexus GS450H 2013-2018 V6 3.5L, LS460 2009-2017 V8 4.6L (AWD); "Downstream Front ": Compatible with Lexus RX330 2004-2006 V6 3.3L, RX350 2007-2014 V6 3.5L(To 03/2014), RX400H 2006-2008 V6 3.3L, RX450H 2010 V6 3.5L; Compatible with Toyota Highlander 2004-2010 V6 3.3L, Highlander 2008-2013 V6 3.5L, Sienna 2004-2006 V6 3.3L, Sienna 2007-2010 V6 3.5L, Sienna 2012-2015 V6 3.5L(To 09/2014)
[Vehicle Fitment]: "Downstream": Compatible with Scion iQ 2012-2015 L4 1.3L, iM 2016 L4 1.8L, tC 2005-2010 L4 2.4L, xB 2008-2015 L4 2.4L; Compatible with Toyota Camry 2002 L4 2.4L, Camry 2003 L4 2.4L(Non Calif-ESV), Corolla iM 2017-2018 L4 1.8L, Solara 2002-2003 L4 2.4L, Venza 2009-2015 L4 2.7L(To 08/2014); "Downstream Rear": Compatible with Toyota Sienna 2011 V6 3.5L
[Reference Number]: 250-24420, 25024420, 2344149, 89465-68050, 89465-0E020, 89465-08090, 8946568050, 894650E020, 8946508090 --- To ensure the correct purchase, please be sure to click on "amazonconfirmedfit" in the top left corner of the page, carefully verify the vehicle compatibility information, and read through the related precautions.
[Specification]: ① Wire Quantity: 4; ② Overall Length: 360 mm; ③ Mounting Type: Threaded; ④ Sensor Type: Heated; ⑤ Connector Gender: Male; ⑥ Package Quantity: 1x Oxygen Sensor; ⑦ Packaging Type: Box
[Buy with Confidence]: A-Premium offers a one-year unlimited-mileage guarantee on our meticulously crafted O2 Oxygen Sensor. We offer a wide variety of automotive accessory categories, ensuring that you can hit the road with peace of mind.

Rank No. #14

MOSTPLUS Air Fuel Ratio Oxygen Sensor Upstream 234-9007 234-9001 Compatible for Toyota Camry

Fitment(1): Compatible for 1998 1999 2002 2003 Lexus ES300 3.0L;Compatible for 2005-2006 Lexus ES330 3.3L;Compatible for 2004-2006 Lexus RX330 3.3L;Compatible for 2007 2010-2011 Lexus RX350 3.5L;Compatible for 2006-2007 Lexus RX400h 3.3L;Compatible for 2000 Toyota 4Runner 2.7L;Compatible for 1997-1999 Toyota Avalon 3.0L;Compatible for 1998-2000 2002-2006 Toyota Camry 3.0L;Compatible for 2004-2006 Toyota Camry 3.3L;Compatible for 2004-2007 Toyota Highlander 3.3L
Fitment(2): Compatible for 1998-2000 Toyota RAV4 2.0L;Compatible for 1999-2000 Toyota Sienna 3.0L;Compatible for 2004-2006 Toyota Sienna 3.3L;Compatible for 1999-2000 Toyota Solara 3.0L;Compatible for 2004-2008 Toyota Solara 3.3L;Compatible for 2001-2004 Toyota Tacoma 2.4L;Compatible for 2000-2004 Toyota Tacoma 2.7L;Compatible for 2000-2004 Toyota Tacoma 3.4L;Compatible for 2000-2004 Toyota Tundra 3.4L
Interchange Part Number: 234-9007 234-9001 234-9042 (Please check your car information with Compatibility Garage or OEM number before purchase.
Package Includes--1 x Oxygen Sensor; Terminal Gender--Male; Pin Quantity--4
Feature: Quicker response times; test before shipment; Direct replacement

SaleRank No. #15

Denso 234-9042 Air Fuel Ratio Sensor

Manufactured to detect the amount of exhaust gas air fuel ratio
Constructed from durable material
Features zirconia solid electrolyte
Highly accurate
Easy installation. The thread diameter is 18mm and the wire length is 302mm

Rank No. #16

Sangyue 4x Oxygen O2 Sensor For 2004 2005 2006 Toyota Sienna 3.3L Upper Lower Upstream + Downstream

One Year Unlimited Mileage Quality Guarantee
Fit 2004-2006 Toyota Sienna 3.3L;
4pcs; Upstream + Downstream
Before buying, check the “Select Your Vehicle” check (Make, model, year, engine, Note,The engine and Note in particular) at the top of the link to see if your car can be used.

Rank No. #17

NewYall Upstream and Downstream Air Fuel Ratio Oxygen Sensor Set

For Toyota Sienna 3.3L 2004-2006

Rank No. #18

Walker Products 350-34501 Oxygen Sensor, Original Equipment Replacement Downstream O2 Sensor, Direct Fit

100% OE Replacement
Dual lower shield design, ceramic element
Laser welded body and shield
Plasma sprayed protective coating, and High Temperature Sleeving
Industry proven performance - approved by professional technicians nationwide

Rank No. #19

MAXFAVOR Oxygen Sensor Replacement for Lexus ES300 ES330 RX330 RX350 RX400H Upstream O2 Sensor 234-9042 02 sensor

➤【Interchange Number】234-9042
➤【Applications】Replacement for Replacement for Lexus ES300 ES330 RX330 RX350 RX400H Upstream O2 Sensor 234-9042 02 sensor
➤【Fuction】High-quality material for long-lasting durability. Perfect match for the original car and easy to install
➤【Cautions】Pls carefully check your vehicle year & make & model with the fitment of Amazon and our description. You must read our description carefully, and it will tell you more about the fitment. Pls check your part pictures with our pictures, it must be completely same. Or it will not fit your car. Pls check your parts No. It must be among our fitment OEM No.
➤【Warranty】: 1-Year Unlimited Miles Warranty. If the oxygen sensor doesn not fit your vehicle, we accept return. Please make the item clean and package in good condition.

Rank No. #20

A-Premium O2 Oxygen Sensor Compatible with Toyota Sienna 2004 2005 2006 2007 2008 2009 2010 2015 2016, Downstream Rear, Replace# 8946508030, 8946508070

[Vehicle Fitment]: Compatible with Toyota Sienna 2004-2006 V6 3.3L, Sienna 2007-2010 V6 3.5L, Sienna 2015-2016 V6 3.5L (From 09/2014)---Downstream Rear
[Reference Number]: 250-24645, 25024645, 8946508030, 8946508070
[Specification]: ① Wire Quantity: 4; ② Sensor Type: Heated; ③ Mounting Type: Threaded; ④ Connector Gender: Male; ⑤ Package Quantity: 1x Oxygen Sensor; ⑥ Packaging Type: Box
[Quality Construction]: Manufactured from premium materials for a long lifespan; Quick and easy installation, requiring no special tools
[Buy with Confidence]: A-Premium offers a one-year unlimited-mileage guarantee on our meticulously crafted O2 Oxygen Sensor. We offer a wide variety of automotive accessory categories, ensuring that you can hit the road with peace of mind.

Last update on 2023-08-04 / Affiliate links / Product Titles, Images, Descriptions from Amazon Product Advertising API

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FAQ:

Q: When should I replace my O2 sensor?

A: Car manufacturers recommend replacing the O2 sensor about every five years (one- and two-wire sensors) or ten years (three- and four-wire sensors). However, silicon or carbon soot may cover an oxygen sensor due to a car repair or engine performance problems.

Q: How can I tell if my O2 sensors are bad?

A: Several of the most obvious signs that the oxygen sensor is failing include: Reduced gas mileage A bad smell like rotten eggs coming from the exhaust The check engine light comes on You notice that your engine idles roughly The car is suddenly hard to start

Q: Which O2 sensor is bad?

A: If it is, there’s a fairly good chance that a bad O2 sensor is causing the problem. These sensors go bad all the time. Some experts say that new fuels with higher ethanol content are causing parts of our cars, including the O2 sensors, to go bad prematurely.

Q: Where is the oxygen sensor on a Toyota?

A: On pre 1996 TOYOTA Camry vehicles the oxygen is located in the exhaust manifold or front exhaust pipe near the exhaust manifold. Four cylinder has one oxygen sensor and V6 and V8 may has two, one for each engine bank. On 1996 “MAKE MODEL” and later OBDII equipped vehicles will have a least two oxygen sensors.