Denso P16PR8 Spark Plug

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Rating
Brand	Code
3.8 / 5 Overall
Denso	P16PR8
4.0 / 5 Materials
Platinum	Platinum
Ground electrode	Center electrode
3.5 / 5 Design
Standard	Fine Wire
Ground type	Center type

Specifications
Gap	Heat range
0.8mm (.031")	16
⌀14mm	1.25mm
Thread diameter	Thread pitch
19mm (3/4")	21mm (13/16")
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

PGR5A-11

Platinum

3.8/ 5

.043"19mm, ⌀14x1.25HR 5

Deep reference (3)

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

P16PR11

Platinum

3.8/ 5

.043"19mm, ⌀14x1.25HR 16

P16R13

Platinum

3.8/ 5

.050"19mm, ⌀14x1.25HR 16

RN10PYP4

Platinum

3.7/ 5

.039"19mm, ⌀14x1.25HR 10

Same specs (2)

Products that have identical characteristics that impact interchangability

BPR5EIX

Copper-Iridium

3.8/ 5

.031"19mm, ⌀14x1.25HR 5

BPR5EY

Copper

3.1/ 5

.031"19mm, ⌀14x1.25HR 5

Bigger gap (14)

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

VW16

Iridium-Platinum

4.2/ 5

.043"19mm, ⌀14x1.25HR 16

P16PR11

Platinum

3.8/ 5

.043"19mm, ⌀14x1.25HR 16

BPR5EIX-11

Copper-Iridium

3.8/ 5

.043"19mm, ⌀14x1.25HR 5

PGR5A-11

Platinum

3.8/ 5

.043"19mm, ⌀14x1.25HR 5

BPR5EP-11

Platinum

3.8/ 5

.043"19mm, ⌀14x1.25HR 5

PGR5C-11

Platinum

3.8/ 5

.043"19mm, ⌀14x1.25HR 5

GR5IX

Copper-Iridium

3.8/ 5

.039"19mm, ⌀14x1.25HR 5

GR5GP

Copper-Platinum

3.5/ 5

.039"19mm, ⌀14x1.25HR 5

BPR5EGP

Copper-Platinum

3.5/ 5

.039"19mm, ⌀14x1.25HR 5

GR5

Copper

3.1/ 5

.039"19mm, ⌀14x1.25HR 5

BPR5EY-11

Copper

3.1/ 5

.043"19mm, ⌀14x1.25HR 5

BPR5ES SOLID

Copper

2.9/ 5

.035"19mm, ⌀14x1.25HR 5

BPR5ES

Copper

2.9/ 5

.035"19mm, ⌀14x1.25HR 5

BPR5ES-11

Copper

2.9/ 5

.043"19mm, ⌀14x1.25HR 5

One step colder (4)

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

VW20T

Iridium-Platinum

4.2/ 5

.031"19mm, ⌀14x1.25HR 20

P20R8

Platinum

3.8/ 5

.031"19mm, ⌀14x1.25HR 20

P20PR8

Platinum

3.8/ 5

.031"19mm, ⌀14x1.25HR 20

BPR6EY

Copper

3.1/ 5

.031"19mm, ⌀14x1.25HR 6

Two steps colder (5)

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

VW22

Iridium-Platinum

4.2/ 5

.031"19mm, ⌀14x1.25HR 22

P22PR8

Platinum

3.8/ 5

.031"19mm, ⌀14x1.25HR 22

BPR7EIX

Copper-Iridium

3.8/ 5

.031"19mm, ⌀14x1.25HR 7

BPR7ES SOLID

Copper

2.9/ 5

.031"19mm, ⌀14x1.25HR 7

BPR7ES

Copper

2.9/ 5

.031"19mm, ⌀14x1.25HR 7