I have a mitsubishi and need a 22mm why does this say it in the title and not anywhere in the description.

Pretty much all of the O2 sensors are 22 mm (7/8"). From the description next to the picture: "Common 6 point, 7/8 in. (22mm) socket fits most oxygen sensors".

Would an equivalent-sized crowfoot wrench (using a ratchet plus an extension) work to install/remove an oxygen sensor? They're similarly shaped, and I already have them on hand. Thanks for your help.

The sensor would have to be very loose because you are engaging only two sides with a crowfoot wrench. I needed a 3/8" to 1/2" adaptor and a 20" 1/2" drive break-over bar to remove the old sensor. If you aren't going to reuse the sensor, you could cut the wires and use a 7/8" box wrench.

Why is this better than the ares 70039?

I don’t know why it’s better, but it is an amazing tool. Probably it is better because of its design. It’s perfect for changing sensors and very well made ✅

will it work for a 2011 xc90?

Yes it will. remember since it's 2011, it's going to be on tight. Get penetrating oil and apply at least 30 minutes before hand.

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TEKTON 3/8 Inch Drive x 7/8 Inch Offset 6-Point Oxygen Sensor Socket | 47749

TEKTON 3/8 Inch Drive x 7/8 Inch Offset 6-Point Oxygen Sensor Socket | 47749

Product ID: 269817114

Details

Brand
TEKTON
Finish type
Polished
Item length
2.2 Inches
Material
Chrome Steel
Number of pieces
1

🔧3/8" drive fits standard ratchets

⚙️7/8" 6-point socket for secure grip

🛠️Offset design protects sensor wires

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€ 18.41

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Sold byAmazon PortugalDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔩 Upgrade your toolkit with the socket that works as hard as you do!

BUILT TO LAST - Crafted from high-performance chrome molybdenum steel for unmatched durability and corrosion resistance.
TRUSTED BY THOUSANDS - Rated 4.7 stars by nearly 4,000 users—join the community of pros who rely on TEKTON.
UNIVERSAL COMPATIBILITY - Works seamlessly with any 3/8 inch drive ratchet or breaker bar for versatile use.
WIRE SAFE OFFSET DESIGN - Side access with offset drive prevents damage to delicate sensor wiring—work smarter, not harder.
PRECISION FIT FOR PRO MECHANICS - 7/8 inch 6-point socket ensures a snug, slip-free grip on oxygen sensors.

The TEKTON 3/8 Inch Drive x 7/8 Inch Offset 6-Point Oxygen Sensor Socket (Model 47749) is a durable, precision-engineered tool designed for easy removal and installation of oxygen sensors. Featuring a 6-point 7/8 inch socket and an offset drive with wire gate, it protects sensor wiring while providing a secure fit. Made from chrome molybdenum steel, it fits any 3/8 inch drive ratchet or breaker bar, making it a reliable choice for automotive professionals and enthusiasts alike.

Specifications

ASIN	B00GMN4D1Q
Bit Compatibilities	Breaker Bar, Ratchet
Bit Set Composition	Single Bit
Brand	TEKTON
Brand Name	TEKTON
Customer Reviews	4.7 out of 5 stars 3,961 Reviews
Drive Bit Application	automotive
Drive Bit Shank Style	External Hex
Drive End Style	Hex Shank
Drive System	3/8"
Drive system	3/8"
Finish Types	Polished
Finish type	Polished
Global Trade Identification Number	00020209477496
Included Components	(1) TEKTON 3/8 Inch Drive x 7/8 Inch Offset 6-Point Oxygen Sensor Socket \| 47749
Item Length	2.2 Inches
Item Type Name	Hand Drive Socket
Item Weight	0.34 Pounds
Item length	2.2 Inches
Manufacturer	TEKTON
Manufacturer Part Number	47749
Material	Chrome Molybdenum Steel
Material Type	Chrome Molybdenum Steel
Model Number	47749
Number of Pieces	1
Number of pieces	1
Set Name	Individual
UPC	020209477496
Unit Count	1 Count

Reviews

M**A

Strong,well made,good price

4.04.2021

A**R

Great tool

30.12.2025

A**A

Excelente

Buena herramienta

23.01.2026

S**N

Works fine for o2 sensor

1.07.2022

O**O

Works well

15.11.2025

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