does this has 0.004 size difference? is it issue ? oem is 0.004

If you are driving a Mazda Skyactive engine newer than 2012, you should be o.k.. In 2012, the stock Skyactive 2.0 uses the OEM spark plug with 0.032 gap, then the Mazda revised the spec to 0.040 gap for the vehicle after 2013. The newest spec is 0.044. The older 4711 spark plug has 0.032 then I just notice it is now 0.040. As long as your car is updated with the latest Mazda software, you should be o.k.. Personal note, this Denso 4711 burns better in my opnion and it is cheaper too.

work to nissan versa 2009? engine 1.8

According to their website, yes.http://densoautoparts.com/find-my-part/vehicle-selectionAssuming it's the s-1.8L engine.

Would it fit corolla 1.6l 2011?

There was no 1.6L engine offered for a 2011 Toyota Corolla so I assume you have a 1.8L engine which would take Denso IXEH20TT or Denso SC20HR11 (Iridium Long Life).

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Iridium TT Spark Plug - IXEH20TT - Twin Tip - The Powerful Premium Quality Ultra-Efficient Replacement Plug

Product ID: 54614220

Details

Brand
Denso
Core material
Iridium
Thread size
12 millimeters
Top material type
Metal
Vehicle service type
Car Van

⚡φ0.4 mm Iridium center electrode

🔥Twin Tip design for max flame kernel

🔩17 Nm tightening torque

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€ 35.37

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Description

⚡ Ignite your drive with precision power and efficiency!

TWIN TIP TECHNOLOGY - Double needle electrode accelerates flame development, unlocking peak engine power.
LASER WELDED DURABILITY - All-around laser welding ensures unmatched reliability under extreme conditions.
OPTIMIZED FUEL EFFICIENCY - Advanced quenching reduction boosts fuel economy and smooth acceleration.
ELECTROMAGNETIC NOISE SUPPRESSION - Built-in monolithic resistor eliminates interference for flawless electronic performance.
PRECISION IRIDIUM CENTER ELECTRODE - Ultra-fine 0.4 mm tip reduces spark voltage for superior ignitability.

The DENSO Iridium TT IXEH20TT spark plug features a cutting-edge twin tip design with a 0.4 mm iridium center electrode and 0.7 mm platinum ground electrode, laser-welded for durability. It delivers improved acceleration, fuel economy, and longevity by enhancing flame kernel development and reducing spark voltage requirements. With a 17 Nm tightening torque and embedded resistor to prevent electromagnetic noise, it’s engineered for reliable, high-performance ignition in demanding driving conditions.

Specifications

ASIN	B00TPUAJIY
Automotive Fit Type	Universal Fit
Best Sellers Rank	52,256 in Automotive ( See Top 100 in Automotive ) 325 in Car Spark Plugs
Brand Name	Denso
Compatible with Vehicle Type	Car, Van
Core Material	Iridium
Country Of Origin	Japan
Customer Reviews	4.6 4.6 out of 5 stars (419)
Gap Size	0.3 Millimeters
Global Trade Identification Number	00042511047112
Included Components	Iridium TT Spark Plug x1
Item Type Name	Spark Plug
Item Weight	40 Grams
Manufacturer	Tetrosyl Express Limited
Manufacturer Part Number	IXEH20TT
Manufacturer Warranty Description	2 Year Manufacturer
Model Number	IXEH20TT
OEM Equivalent Part Number	DENS7
Thread Size	12 millimeters
Top Material Type	Metal
UPC	042511047112
Unit Count	1.0 count

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