Denso Q14RU11 Spark Plug

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Rating

3.3 / 5 Overall
Denso	Q14RU11
Brand	Code
3.0 / 5 Materials
Copper	Copper
Ground electrode	Center electrode
4.0 / 5 Design
U-Groove	Standard
Ground type	Center type

Specifications

1.1mm (.043")	14
Gap	Heat range
⌀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

One step colder (6)

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

IQ16

Copper-Iridium

4.3/ 5

.043"19mm, ⌀14x1.25HR 16

IK16G

Copper-Iridium

4.3/ 5

.043"19mm, ⌀14x1.25HR 16

Q16R-U11

Copper

-

3.3/ 5

.043"19mm, ⌀14x1.25HR 16

K16R-U11

Copper

-

3.3/ 5

.043"19mm, ⌀14x1.25HR 16

K16PR-U11

Copper

-

3.3/ 5

.043"19mm, ⌀14x1.25HR 16

Q16PR-U11

Copper

-

3.3/ 5

.043"19mm, ⌀14x1.25HR 16

Two steps colder (6)

Two steps colder spark plugs with same characteristics for heavily modified engines (150-200 hp increase)

IQ20

Copper-Iridium

4.3/ 5

.043"19mm, ⌀14x1.25HR 20

IK20G

Copper-Iridium

4.3/ 5

.043"19mm, ⌀14x1.25HR 20

Q20R-U11

Copper

-

3.3/ 5

.043"19mm, ⌀14x1.25HR 20

Q20PR-U11

Copper

-

3.3/ 5

.043"19mm, ⌀14x1.25HR 20

K20PR-U11

Copper

-

3.3/ 5

.043"19mm, ⌀14x1.25HR 20

K20R-U11

Copper

-

3.3/ 5

.043"19mm, ⌀14x1.25HR 20