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  • Denso 234-9011 Air Fuel Ratio Sensor
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Denso 234-9011 Air Fuel Ratio Sensor

by Denso

List Price: $162.05
Price: $122.15 & FREE Shipping. Details
You Save: $39.90 (25%)
In Stock.
Ships from and sold by Amazon.com.
  • Manufactured to detect the amount of exhaust gas air fuel ratio
  • Constructed from durable material
  • Features zirconia solid electrolyte
  • Highly accurate
  • Easy installation
See more product details
34 new from $121.33
Note: Denso partners with other manufacturers to supply the parts your car was originally built with. This product is in a Denso package, however the part may have been manufactured by an independent Denso supplier.

Frequently Bought Together

Denso 234-9011 Air Fuel Ratio Sensor + Powerbuilt 648691 Oxygen Sensor Offset Puller + Permatex 81343 Anti-Seize Lubricant, 1 oz. Tube
Price for all three: $135.33

These items are shipped from and sold by different sellers.

Buy the selected items together


Product Information

Technical Details
BrandDenso
Item Weight4.2 ounces
Product Dimensions5.8 x 1.9 x 2.2 inches
Item model number234-9011
Manufacturer Part Number234-9011
OEM Part Number 22641AA042, 22641 AA042
Position Front
  
Additional Information
ASINB000C5YD1A
Best Sellers Rank #21,542 in Automotive (See top 100)
Shipping Weight1 pounds (View shipping rates and policies)
ShippingThis item is also available for shipping to select countries outside the U.S.
Date First AvailableJanuary 2, 2007
  
Warranty & Support
Warranty, Parts: Parts

Warranty, Labor: Denso honors the manufacturer's warranties for the products purchased from Denso. Please note that shipping charges for all warranty items are the responsibility of the customer. Parts that are damaged due to incorrect installation or mistreatment are not covered under warranty. Denso does not express or imply any warranty as to the performance of any part sold. Denso is not liable for damages of any kind arising from incorrect part application. Denso is not liable for the use of parts purchasedRead more on this site, including but not limited to punitive, indirect, direct, incidental, and consequential damages.
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Product Description

Denso Air and Fuel Ratio sensor is designed to detect the amount of the exhaust gas air and fuel ratio. It is constructed from durable material that is corrosion and abrasion resistant. This sensor features zirconia solid electrolyte integrated with alumina heater substrate which precicely controls the amount of oxygen concentration that flows into the diffusion layer to limit current flow. This sensor can easily be installed and ensures longevity.


Customer Questions & Answers

Customer Reviews

4.8 out of 5 stars
5 star
49
4 star
3
3 star
1
2 star
0
1 star
1
See all 54 customer reviews
So far no more check engine light.
James T. Shissler
A torque wrench or a long socket wrench with a O2 socket is useful for removing the old one.
M Lee
Much cheaper than the OEM sensor or dealer repair.
Chris Knight

Most Helpful Customer Reviews

9 of 9 people found the following review helpful By David Wayland Dong on September 26, 2011
Verified Purchase
This is the OEM front oxygen sensor for an '02 Subaru WRX (among other models) at a really good price. Plugs right into wire harness.
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3 of 3 people found the following review helpful By scooter4483 on September 18, 2011
Verified Purchase
After having this for a month on my 05 wrx, the sensor is doing the job. No CEL anymore. I've read that this is a direct replacement on the car without the markup. If subaru puts its name on it, its $165 approximately. I strongly recommend this as a replacement. My stock sensor failed me after 106k miles. Hopefully this one will last just as long.
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2 of 2 people found the following review helpful By ThaCooLoser on December 4, 2013
Verified Purchase
Perfect fit. Took my check engine light off like I expected it to. Supposedly better than the oem and I believe it. Price was cheaper than any sauto store around here. Amazon has been my best source for shopping online. Thanks
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2 of 2 people found the following review helpful By JF on November 1, 2013
Verified Purchase
Threw P0031, new sensor fixed it. The dealer will sell you this DENSO sensor with Subaru written on it and charge twice as much.
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2 of 2 people found the following review helpful By BReal on October 30, 2013
Verified Purchase
I needed a new O2 sensor for bank 1 (pre turbo) on my 04 WRX, The brick & mortar shops wanted over $200 for this part, WELL above what I paid for the part + overnight shipping on Amazon! When I removed the old part from my car, lo and behold, it was the EXACT same part number as I had purchased on Amazon, so while it's not advertised as OEM, it is the same exact part as was put on my car in the factory. Installation took about 30 minutes.
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1 of 1 people found the following review helpful By Dakota J. Doerr on March 20, 2014
Verified Purchase
the best part about this sensor is its about 70 dollars cheaper since it doesnt say subaru on it,im all for saving money! on my 04 wrx i had a feeling my upstream sensor was going bad i was seeing about 200 miles to a tank where i used to get 300 prior,i had checked for boost leaks and fuel leaks prior,and finally determined this sensor was bad

i had no check engine light,but i replaced this sensor and my gas mileage shot up to 300 a tank,very satisfied great pricing great denso quality
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1 of 1 people found the following review helpful By Chris Knight on November 13, 2012
Verified Purchase
Replaced bad front O2 (air flow) sensor on a 2002 Subaru WRX Wagon. Total repair time 1 hour and I'm not a real mechanic. This sensor fit perfectly and now the check engine light is finally off. Much cheaper than the OEM sensor or dealer repair.
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Verified Purchase
Fit perfect on my 2004 WRX, and took care of my P0031 DTC. Like the other reviewers say, this is the correct OEM replacement.
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