Spark plug question

Hello All,
It's been a couple of years since my last post and I have some questions regarding spark plugs.
My 2002 4.7 Tundra has 130K miles on it. I bought it used about 6 years ago with 80K miles on it. I decided to change the spark plugs but I've seen on the forum that there is some discrepancy with regards to type and gap.
I pulled the old one and they were Bosch Iridium with a gap of .044".
Went to the Napa parts store and got a new set of NGK that aren't Iridium and they are gapped to .032". It appears that different plugs have different gaps which has led to numerous discussions but in the forum no one has stated exactly which of the plugs they have been using.
I went to the NGK web site and put in the year, model and engine size. It gave me about 6 options, all are gapped to .032"
Then I saw a post from a member that is rebuilding his truck and he has a sticker on the valve cover that says "Use Iridium Plugs Only".
I looked at Denso and they have different gaps for different plugs, see below.

$4 K20R-U Denso 3122 Spark Plug

K20R-U
Engine:
V8 (4.7L)
CC:
4663
CID:
285
8
Note:
Gap 0.032
Label:
U-Groove Conventional
View
Buy
PK20R8
Engine:
V8 (4.7L)
CC:
4663
CID:
285
8
Note:
Gap 0.032
Label:
Double Platinum
View
Buy
SK20PR-A8
Engine:
V8 (4.7L)
CC:
4663
CID:
285
8
Note:
Gap 0.032
Label:
Iridium Long Life
View
Buy
PK20TT
Engine:
V8 (4.7L)
CC:
4663
CID:
285
8
Note:
Gap 0.040
Label:
Platinum TT
View
Buy
IK20TT
Engine:
V8 (4.7L)
CC:
4663
CID:
285
8
Note:
Gap 0.040
Label:
Iridium TT
View
Buy
IK20
Engine:
V8 (4.7L)
CC:
4663
CID:
285
8
Note:
Gap 0.044
Label:
Iridium Power

What are most of you guys using and what are you experiencing with regards to performance and fuel economy?
What is the reason for so many different choices?
What seems to be the consensus with the best plug for this engine?
I'm really confused.
Pete

 

First off, the proper heat range is important.

I have tried AC, Champion, Bosch and NGK. Hands down NGK, for my application is the best. That was the only plug I could run on the street, Time Trial the car (Corvette, not a Toyota), and still keep going on the same plugs. AC is also a good reliable plug.

Many people will like the Denso. But I have had such good luck with NGK, I see no reason to switch. Any plug change in my Toyota's have always been NGK.

 

What does your owner's manual say? @Roman parts guy give him your VIN# or call your dealer run #VIN they should tell you

 

When you decide on which plugs are correct make sure to buy from a reputable vendor. There are cheap Chinese counterfeit NGK spark plugs for sale on eBay and Amazon. There's a thread on here that goes into detail about this.

 

Here's a link to the OEM plugs:

https://parts.toyotaofcoolsprings.c...lug-9091901166?c=bD0xJm49U2VhcmNoIFJlc3VsdHM=

They come pre-gapped.

 

Please help fellas I’m getting conflicting info on correct Denso part number for plugs.

My VIN engine specs.



My manual specs


My questions are:

What engine do I have according to manual?

What Denso part number do I need?

Is .043 the correct gap?

 

The 5.7L is the 3UR-FE engine. The factory plug was Denso SK20HR11 according to my 2008 manual.