Denso Q16RZU11 3154 Spark Plug

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Rating
Brand	Code
3.9 / 5 Overall
Denso	Q16RZU11
3.5 / 5 Materials
Copper	Platinum
Ground electrode	Center electrode
4.8 / 5 Design
U-Groove	Fine Wire
Ground type	Center type

Specifications
Gap	Heat range
1.1mm (.043")	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 (1)

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

BCPR5EIX-11

Copper-Iridium

3.8/ 5

.043"19mm, ⌀14x1.25HR 5

Deep reference (6)

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

IQ16TT

Iridium-Platinum

4.7/ 5

.039"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

Q16PR-ZU11

Copper-Platinum

3.9/ 5

.043"19mm, ⌀14x1.25HR 16

Q16PR-T11

Copper

2.9/ 5

.043"19mm, ⌀14x1.25HR 16

Same specs (6)

Products that have identical characteristics that impact interchangability

Q16ZU11

Copper-Platinum

3.9/ 5

.043"19mm, ⌀14x1.25HR 16

Q16PR-ZU11

Copper-Platinum

3.9/ 5

.043"19mm, ⌀14x1.25HR 16

K16PRZU-11

Copper-Platinum

3.9/ 5

.043"19mm, ⌀14x1.25HR 16

K16RZU11

Copper-Platinum

3.9/ 5

.043"19mm, ⌀14x1.25HR 16

Q16-U11

Copper

3.3/ 5

.043"19mm, ⌀14x1.25HR 16

Q16P-U11

Copper

3.3/ 5

.043"19mm, ⌀14x1.25HR 16

One step colder (6)

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

Q20ZU11

Copper-Platinum

3.9/ 5

.043"19mm, ⌀14x1.25HR 20

Q20PR-ZU11

Copper-Platinum

3.9/ 5

.043"19mm, ⌀14x1.25HR 20

K20RZU11

Copper-Platinum

3.9/ 5

.043"19mm, ⌀14x1.25HR 20

K20PRZU11

Copper-Platinum

3.9/ 5

.043"19mm, ⌀14x1.25HR 20

Q20P-U11

Copper

3.3/ 5

.043"19mm, ⌀14x1.25HR 20

Q20-U11

Copper

3.3/ 5

.043"19mm, ⌀14x1.25HR 20

Two steps colder (1)

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

Q22PRZ-U11

Copper-Platinum

3.9/ 5

.043"19mm, ⌀14x1.25HR 22