2017 highlander v6 manual says i need (denso 3491) 0.031 gap, but amazon & rock auto says this denso 4705, 0.040 gap fits?

I can't honestly answer your question. I bought for a 2006 Lexis IS350. I've had no issues.

Are these legit products?

Yes, very good original equipment plug in the Tacoma. Had mine in for over 45K now. No problems.

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R$487

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Description

⚡ Ignite your drive with precision and power!

NOISE FREE DRIVE - Built-in monolithic resistor eliminates electromagnetic interference for smooth electronics.
OPTIMIZED FUEL ECONOMY - Reduced spark voltage requirements improve ignitability, boosting MPG and throttle response.
SEAMLESS COMPATIBILITY - Designed with 14mm diameter and 26.5mm thread length for perfect OEM fit.
PRECISION IGNITION POWER - Twin Tip electrodes ignite fuel faster, unlocking peak engine performance.
DURABILITY MEETS EFFICIENCY - Iridium and platinum alloys ensure long-lasting spark reliability under extreme conditions.

The Denso Iridium TT 4705 spark plug features a cutting-edge twin tip design with ultra-fine φ0.4mm iridium and 0.7mm platinum electrodes, delivering faster flame development and improved acceleration. Engineered with high melting point alloys and all-around laser welding, it guarantees durability and consistent performance. Its built-in resistor minimizes electronic noise, ensuring smooth operation and enhanced fuel efficiency, making it a top choice for professional-grade engine tuning.

Specifications

ASIN	B00TPU9BWO
Automotive Fit Type	Vehicle Specific Fit
Best Sellers Rank	#112,105 in Automotive ( See Top 100 in Automotive ) #654 in Automotive Performance Spark Plugs
Brand	Denso
Brand Name	Denso
Compatible with Vehicle Type	UTV
Core Material	Iridium
Core material	Iridium
Customer Reviews	4.7 out of 5 stars 216 Reviews
Gap Size	1 Millimeters
Global Trade Identification Number	00042511047051
Included Components	Spark Plug Iridium TT
Item Type Name	Spark Plug
Item Weight	52 Grams
Manufacturer	Denso
Manufacturer Part Number	IKBH20TT
Model Number	IKBH20TT
OEM Equivalent Part Number	DENS7
Thread Size	14mm
Thread size	14mm
Top Material Type	Iridium
Top material type	Iridium
UPC	042511047051
Unit Count	1 Count
Vehicle service type	UTV

Reviews

H**Y

Original. Great buy.

16.02.2026

G**M

Great Spark Plugs!

9.02.2026

V**A

Better than Bosch.

6.03.2026

B**O

Amazing (3.5 3nd gen Tacoma)

19.05.2024

P**G

Oem for sure!

13.04.2026

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R$487

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In stock

Sold byAmazon BrazilDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Brazil.

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