Denso IQ16TT 4706 Spark Plug

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Rating
Brand	Code
4.7 / 5 Overall
Denso	IQ16TT
4.5 / 5 Materials
Platinum	Iridium
Ground electrode	Center electrode
5.0 / 5 Design
Fine Wire	Fine Wire
Ground type	Center type

Specifications
Gap	Heat range
1mm (.039")	16
⌀14mm	1.25mm
Thread diameter	Thread pitch
19mm (3/4")	16mm (5/8")
Reach	Hex size
Gasket	Solid
Seat	Terminal
1	Non-Projected
Ground count	Projection

Cross-reference and alternatives

How we find alternative spark plugs How we rate spark plugs

Cross-reference (5)

Alternative spark plugs found in cross-reference docs provided by manufacturers

BCPR5EP-11

Platinum

3.8/ 5

.043"19mm, ⌀14x1.25HR 5

BCPR5EP-8

Platinum

3.8/ 5

.031"19mm, ⌀14x1.25HR 5

BCPR5EIX-11

Copper-Iridium

3.8/ 5

.043"19mm, ⌀14x1.25HR 5

BCPR5EIX

Copper-Iridium

3.8/ 5

.031"19mm, ⌀14x1.25HR 5

BCPR5EGP

Copper-Platinum

3.5/ 5

.039"19mm, ⌀14x1.25HR 5

Deep reference (17)

A second level of cross-reference: if A=B and B=C, then A=C

IQ16

Copper-Iridium

4.3/ 5

.043"19mm, ⌀14x1.25HR 16

IQ16

Copper-Iridium

4.3/ 5

.043"19mm, ⌀14x1.25HR 16

VQ16

Iridium-Platinum

4.2/ 5

.043"19mm, ⌀14x1.25HR 16

XP5503

Iridium-Platinum

4.2/ 5

.045"19mm, ⌀14x1.25HR 2

XP5503

Iridium-Platinum

4.2/ 5

.045"19mm, ⌀14x1.25HR 2

Q16PR-ZU11

Copper-Platinum

3.9/ 5

.043"19mm, ⌀14x1.25HR 16

Q16RZU11

Copper-Platinum

3.9/ 5

.043"19mm, ⌀14x1.25HR 16

PQ16R

Platinum

3.8/ 5

.043"19mm, ⌀14x1.25HR 16

PQ16R8

Platinum

3.8/ 5

.031"19mm, ⌀14x1.25HR 16

PQ16TT

Platinum-Titanium

3.7/ 5

.039"19mm, ⌀14x1.25HR 16

PQ16TT

Platinum-Titanium

3.7/ 5

.039"19mm, ⌀14x1.25HR 16

PQ16TT

Platinum-Titanium

3.7/ 5

.039"19mm, ⌀14x1.25HR 16

APP5503

Platinum

3.5/ 5

.045"19mm, ⌀14x1.25HR 2

APP5503

Platinum

3.5/ 5

.045"19mm, ⌀14x1.25HR 2

AP5503

Copper-Platinum

3.2/ 5

.045"19mm, ⌀14x1.25HR 2

AP5503

Copper-Platinum

3.2/ 5

.045"19mm, ⌀14x1.25HR 2

Q16PR-T11

Copper

2.9/ 5

.043"19mm, ⌀14x1.25HR 16

Same specs (1)

Products that have identical characteristics that impact interchangability

PQ16TT

Platinum-Titanium

3.7/ 5

.039"19mm, ⌀14x1.25HR 16

Bigger gap (3)

0.1..0.3 mm gap increase for better performance given your ignition system can handle it

FK16R11

Iridium-Platinum

4.7/ 5

.043"19mm, ⌀14x1.25HR 16

DIFR5C11

Iridium-Platinum

4.7/ 5

.043"19mm, ⌀14x1.25HR 5

FR5AHX

Platinum-Ruthenium

4.7/ 5

.043"19mm, ⌀14x1.25HR 5

One step colder (2)

Colder spark plugs with same characteristics for moderately tuned engines (75–100 hp increase)

IQ20TT

Iridium-Platinum

4.7/ 5

.039"19mm, ⌀14x1.25HR 20

PQ20TT

Platinum-Titanium

3.7/ 5

.039"19mm, ⌀14x1.25HR 20