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Toyota 4Runner Replacement Air Fuel Ratio Sensor Information

Read Reviews for Toyota 4Runner Air Fuel Ratio Sensor -
5 stars - (41 Reviews)
Toyota 4Runner Air Fuel Ratio Sensor Reviews
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For powerful performance and effortless maneuverability consumers rely on vehicles engineered by Toyota. Because you own a well made vehicle with a fine lineage, you're after a Toyota. When an issue crops up or a component must be replaced, don't economize with a weak or unreliable part. A Toyota 4Runner will reward you for installing efficiency-optimized auto parts to come through with maximum power. Flexible trucks and SUVs such as the mountain-climbing Toyota 4Runner were meant to handle all weathers and terrains wherever they're taken but they really have to have timely maintenance and high-quality parts to keep on dominating the world's rough terrain features. The Toyota 4Runner is durable enough to conquer any mountain, but has got to have first-rate quality auto parts so it can get to where you need to be. The Toyota you chose was created using care and skill; it needs new replacement parts of a similar high level of value. An automobile's Toyota 4Runner Air Fuel Ratio Sensor calculates the air-fuel ratios in your engine, keeping them within the suggested parameters for perfect performance. Your air fuel ratio sensor operates in combination with a car or truck's central processing unit to decide whether or not your fuel vapor fed to the motor needs to be altered. If your car or truck's air-fuel mixture is too low, inadequate engine power will be the result; conversely, a fuel-heavy mixture causes damage to the motor and large quantities of unburned fuel from the car's tailpipe. You purchased that high-performance car or truck to take advantage of its excellent power and performance, support that investment and buy first rate aftermarket parts and accessories. Protect your car's systems by investing in the best top-notch parts and accessories. It doesn't matter which model you drive, we can get you the Toyota parts you are searching for. We completely understand your love for your Toyota, that's why we carry nothing but premium parts. Come to PartsGeek any time you need top quality car and truck parts and be rewarded by our world-class service and an honest price 24/7.


They are available for the following Toyota 4Runner years: 2009, 2008, 2007, 2006, 2005, 2004, 2003, 2002, 2001, 2000, 1999, 09, 08, 07, 06, 05, 04, 03, 02, 01, 00, 99. This part is also sometimes called Toyota 4Runner Wide Range Air Fuel Sensors. We stock air fuel ratio sensor parts for most Toyota models including Tacoma, Camry, Sienna, RAV4, Avalon, Highlander, Tundra, Solara, Corolla, Prius, FJ Cruiser, Sequoia, Matrix, Yaris, Venza and Land Cruiser.

We stock these Air Fuel Ratio Sensor brands for the Toyota 4Runner: Denso and NGK.


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Denso 234-9002
Air Fuel Ratio Sensor
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Our List Price: $115.10
with FREE Shipping
(>35) In Stock
Product SKU: 234-9002
Product Note: OE Style -- DENSO is the O.E. Manufacturer / Air Fuel Ratio Sensor
Features:
  • Manufactured to detect the amount of exhaust gas air fuel ratio
  • Constructed from durable material
  • Features zirconia solid electrolyte
  • Highly accurate
  • Easy installation
Position of Product: Upstream
Inventory: In Stock
Condition: New

Shipping Options:
Free Ground Shipping
Additional Fitment Information: Catalog: B
Vehicle Engine
• 2002 (02) Toyota 4Runner 3.4L V6 

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Denso 234-9002
Air Fuel Ratio Sensor
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Loading Reviews...
Our List Price: $115.10
with FREE Shipping
(>35) In Stock
Product SKU: 234-9002
Product Note: OE Style -- DENSO is the O.E. Manufacturer / Air Fuel Ratio Sensor
Features:
  • Manufactured to detect the amount of exhaust gas air fuel ratio
  • Constructed from durable material
  • Features zirconia solid electrolyte
  • Highly accurate
  • Easy installation
Position of Product: Upstream
Inventory: In Stock
Condition: New

Shipping Options:
Free Ground Shipping
Additional Fitment Information: Catalog: B
Vehicle Engine
• 2001 (01) Toyota 4Runner 3.4L V6 

Click to Enlarge
Denso 234-9002
Air Fuel Ratio Sensor
Close
Loading Reviews...
Our List Price: $115.10
with FREE Shipping
(>35) In Stock
Product SKU: 234-9002
Product Note: OE Style -- Calif.; DENSO is the O.E. Manufacturer / Air Fuel Ratio Sensor
Features:
  • Manufactured to detect the amount of exhaust gas air fuel ratio
  • Constructed from durable material
  • Features zirconia solid electrolyte
  • Highly accurate
  • Easy installation
Position of Product: Upstream
Inventory: In Stock
Condition: New

Shipping Options:
Free Ground Shipping
Additional Fitment Information: Catalog: B
Vehicle Sub Model Engine
• 2000 (00) Toyota 4Runner RWD  3.4L V6 

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(Read reviews)
Our List Price: $115.10
with FREE Shipping
(>35) In Stock
Product SKU: 234-9047
Product Note: OE Style -- DENSO is the O.E. Manufacturer / Air Fuel Ratio Sensor
Position of Product: Upstream Right
Inventory: In Stock
Condition: New

Shipping Options:
Free Ground Shipping
Additional Fitment Information: Catalog: B
Vehicle Engine
• 2003 (03) Toyota 4Runner 4.0L V6 

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Denso 234-9051
Air Fuel Ratio Sensor
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Our List Price: $109.19
with FREE Shipping
(>35) In Stock
Product SKU: 234-9051
Product Note: OE Style -- DENSO is the O.E. Manufacturer / Air Fuel Ratio Sensor
Position of Product: Upstream Left
Inventory: In Stock
Condition: New

Shipping Options:
Free Ground Shipping
Additional Fitment Information: Catalog: B
Vehicle Engine
• 2005 (05) Toyota 4Runner 4.0L V6 

Click to Enlarge
(Read reviews)
Our List Price: $115.10
with FREE Shipping
(>35) In Stock
Product SKU: 234-9047
Product Note: OE Style -- DENSO is the O.E. Manufacturer / Air Fuel Ratio Sensor
Position of Product: Upstream Right
Inventory: In Stock
Condition: New

Shipping Options:
Free Ground Shipping
Additional Fitment Information: Catalog: B
Vehicle Engine
• 2004 (04) Toyota 4Runner 4.0L V6 

Click to Enlarge
Denso 234-9002
Air Fuel Ratio Sensor
Close
Loading Reviews...
Our List Price: $115.10
with FREE Shipping
(>35) In Stock
Product SKU: 234-9002
Product Note: OE Style -- Calif.; DENSO is the O.E. Manufacturer / Air Fuel Ratio Sensor
Features:
  • Manufactured to detect the amount of exhaust gas air fuel ratio
  • Constructed from durable material
  • Features zirconia solid electrolyte
  • Highly accurate
  • Easy installation
Position of Product: Upstream
Inventory: In Stock
Condition: New

Shipping Options:
Free Ground Shipping
Additional Fitment Information: Catalog: B
Vehicle Sub Model Engine
• 1999 (99) Toyota 4Runner RWD  3.4L V6 

Click to Enlarge
Denso 234-9051
Air Fuel Ratio Sensor
Close
Loading Reviews...
Our List Price: $109.19
with FREE Shipping
(>35) In Stock
Product SKU: 234-9051
Product Note: OE Style -- DENSO is the O.E. Manufacturer / Air Fuel Ratio Sensor
Position of Product: Upstream Left
Inventory: In Stock
Condition: New

Shipping Options:
Free Ground Shipping
Additional Fitment Information: Catalog: B
Vehicle Engine
• 2006 (06) Toyota 4Runner 4.0L V6 

Click to Enlarge
(Read reviews)
Product List Price:
$222.96
Our List Price: $143.59
(>25) In Stock
Product SKU: W0133-1601095
Position of Product: Front
Inventory: In Stock
Condition: New

Made By: OEM
(Original Equipment Manufacturer) - a replacement part made by the manufacturer of the original part.

Shipping Options:
Ground, Overnight, 2 Day
Additional Fitment Information: Catalog: A
Vehicle
• 2002 (02) Toyota 4Runner

Click to Enlarge
(Read reviews)
Product List Price:
$222.96
Our List Price: $143.59
(>25) In Stock
Product SKU: W0133-1601095
Position of Product: Front
Inventory: In Stock
Condition: New

Made By: OEM
(Original Equipment Manufacturer) - a replacement part made by the manufacturer of the original part.

Shipping Options:
Ground, Overnight, 2 Day
Additional Fitment Information: Catalog: A
Vehicle
• 2001 (01) Toyota 4Runner

Click to Enlarge
Denso 234-9051
Air Fuel Ratio Sensor
Close
Loading Reviews...
Our List Price: $109.19
with FREE Shipping
(>35) In Stock
Product SKU: 234-9051
Product Note: OE Style -- DENSO is the O.E. Manufacturer / Air Fuel Ratio Sensor
Position of Product: Upstream
Inventory: In Stock
Condition: New

Shipping Options:
Free Ground Shipping
Additional Fitment Information: Catalog: B
Vehicle Engine
• 2007 (07) Toyota 4Runner 4.7L V8 

Click to Enlarge
(Read reviews)
Product List Price:
$253.30
Our List Price: $143.59
(>25) In Stock
Product SKU: W0133-1601095
Product Note: Production: 06/01/1999-07/31/2000, California Emissions
Inventory: In Stock
Condition: New

Made By: OEM
(Original Equipment Manufacturer) - a replacement part made by the manufacturer of the original part.

Shipping Options:
Ground, Overnight, 2 Day
Additional Fitment Information: Catalog: A
Vehicle Production Range Engine Transmission
• 2000 (00) Toyota 4Runner Fr:06-01-99 To:07-31-00  2.7L 4 Cyl  Automatic 

Click to Enlarge
Denso 234-9003
Air Fuel Ratio Sensor
Close
Loading Reviews...
Our List Price: $115.10
with FREE Shipping
(>35) In Stock
Product SKU: 234-9003
Product Note: OE Style -- Calif.; DENSO is the O.E. Manufacturer / Air Fuel Ratio Sensor
Features:
  • Manufactured to detect the amount of exhaust gas air fuel ratio
  • Constructed from durable material
  • Features zirconia solid electrolyte
  • Highly accurate
  • Easy installation
Position of Product: Upstream
Inventory: In Stock
Condition: New

Shipping Options:
Free Ground Shipping
Additional Fitment Information: Catalog: B
Vehicle Sub Model Engine Transmission
• 2000 (00) Toyota 4Runner 4WD  3.4L V6  Standard 

Click to Enlarge
(Read reviews)
Our List Price: $249.43
with FREE Shipping
(4) In Stock
Product SKU: 24669
Product Note: OE Type 4-Wire A/F Sensor -- B1S1; OE Equivalent
Position of Product: Upstream
Inventory: In Stock
Condition: New

Shipping Options:
Free Ground Shipping
Additional Fitment Information: Catalog: B
Vehicle Engine
• 2002 (02) Toyota 4Runner 3.4L V6 

Click to Enlarge
Denso 234-9001
Air Fuel Ratio Sensor
Close
Loading Reviews...
Our List Price: $115.10
with FREE Shipping
(>35) In Stock
Product SKU: 234-9001
Product Note: OE Style -- Calif.; DENSO is the O.E. Manufacturer / Air Fuel Ratio Sensor
Features:
  • Manufactured to detect the amount of exhaust gas air fuel ratio
  • Constructed from durable material
  • Features zirconia solid electrolyte
  • Highly accurate
  • Easy installation
Position of Product: Upstream
Inventory: In Stock
Condition: New

Shipping Options:
Free Ground Shipping
Additional Fitment Information: Catalog: B
Vehicle Engine Transmission
• 2000 (00) Toyota 4Runner 2.7L 4 Cyl  Standard 

Click to Enlarge
(Read reviews)
Our List Price: $138.26
(6) In Stock
Product SKU: 24669
Product Note: OE Type 4-Wire A/F Sensor -- B1S1; OE Equivalent
Position of Product: Upstream
Inventory: In Stock
Condition: New

Shipping Options:
Ground
Additional Fitment Information: Catalog: H
Vehicle Engine
• 2002 (02) Toyota 4Runner 3.4L V6 


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Research on Air Fuel Ratio Sensor for Toyota 4Runner

A little-known part can have a serious impact on your Toyota 4Runner's fuel economy. The air fuel ratio sensor helps your vehicle to burn fuel as cleanly and efficiently as possible. It is a type of oxygen sensor, and when it has a problem, you could experience any of several bad air fuel ratio sensor symptoms.

What Does a P1155 Toyota Code Mean?

If you have a check engine light and pull a P1155 code, you have a problem with your air fuel ratio sensor's heater receiving power. You may find a P1135 Toyota 4Runner 2001 code, which could indicate an issue with the sensor itself. These are just a couple of the error codes you could find. There are several others, and it's best to ask an expert or consult your owner's manual for more information on trouble codes. With a faulty air fuel ratio sensor, in addition to the check engine light, you may also notice that your gas mileage has fallen, the engine runs rough at an idle, or your truck has lost power.

What is the Air Fuel Ratio Sensor?

The air fuel ratio sensor's task is to determine what to tell the engine to do to improve fuel burning by gathering information from the composition of the exhaust leaving the engine. The amount of air and fuel in the engine needs constant adjustment to reach peak efficiency. If there is too much fuel being burned, the mixture creates pollutants that include some of the unburned fuel. This is termed "rich" because there is excess fuel after the burning. On the opposite end of the spectrum is "lean," which happens when too much oxygen is added to the fuel and air mixture. This leads to the production of nitrogen oxide, which is both harmful to your engine and to the environment.

Air Fuel Ratio Sensor Replacement Cost

Over time, your air fuel ratio sensor will wear out or become damaged, but like many other emissions components, replacing it can be pricy. To get a new 2001 Toyota 4Runner air fuel sensor from either your Toyota dealer or a mechanic could range in cost from $355 to $363. Both the parts and labor are included in this range, but many dealers charge more for labor rates than mechanics, and you may find yourself spending more for the part from either of these places than if you had purchased the sensor yourself.

Spend Less on Exhaust Components

Not only is it possible to save money on your air fuel sensor for your Toyota 4Runner but also is it possible for you to spend less on anything else for your vehicle. Don't let the mechanic pick the parts for you. Shop online for the air fuel ratio sensor and any other exhaust system components or other parts for your Toyota to get the best deals, and if you're wondering where to start, go to PartsGeek.com for a wide selection of parts at great prices. It's a fast, simple way to save money on getting your 4Runner back on the road.



Some of our Customer Reviews
Very Satisfied
Reviewer: Greg Bartolome, San Jose California

Fast and relaible company. Part was the correct replacement. Free shipping also. I will recommend to all my friends and relatives to buy all their auto parts they needed to this company. If in the near future requires my car for more parts replacement, I will buy from this company again. I give this company an A+. actually I will be buying a power window motor for my Toyota 4Runner after my message.

2000 Toyota 4Runner Air Fuel Ratio Sensor

Very Satisfied
Reviewer: Repeat customer

I own a 2006 toyota 4rumner purchased new. I now have 200,000 miles racked up and Parts Geek is my go to supplier for OEM. They are literally half the price for same part from dealer!!!

2006 Toyota 4Runner Air Fuel Ratio Sensor

Very Satisfied
Reviewer: Peter, age in determinant mechanic

Worked great, easy to install. Worth the money....

2001 Toyota 4Runner Air Fuel Ratio Sensor

Very Satisfied
Reviewer: Ben N.

This is the fwd sensor. It is the OEM part and identical in every way with original part. Superfast processing of order west coast to east in 2 days regular mail.

2002 Toyota 4Runner Air Fuel Ratio Sensor

Very Satisfied
Reviewer: Toyota man

Awesome product! Great price! Fast delivery! It was installed in 30 mins and all the necessary parts were included in the box.

2006 Toyota 4Runner Air Fuel Ratio Sensor

Very Satisfied
Reviewer: did the job

Fit perfect, and fixed "check engine light" codes P0125, P1130, and P1135

2000 Toyota 4Runner Air Fuel Ratio Sensor


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