Denso W16PR-U Spark Plug

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Rating

3.3 / 5 Overall
Denso	W16PR-U
Brand	Code
3.0 / 5 Materials
Copper	Copper
Ground electrode	Center electrode
4.0 / 5 Design
U-Groove	Standard
Ground type	Center type

Specifications

0.7mm (.028")	16
Gap	Heat range
⌀14mm	1.25mm
Thread diameter	Thread pitch
9.5mm (3/8")	21mm (13/16")
Reach	Hex size
Gasket	Removable Nut
Seat	Terminal
1	Non-Projected
Ground count	Projection

Cross-reference and alternatives

Cross-reference (7)

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

XS85

Iridium-Platinum

4.2/ 5

.035"9.5mm, ⌀14x1.25HR 5

R5670-5

Copper

3.1/ 5

.031"9.5mm, ⌀14x1.25HR 5

XR4

Copper

3.1/ 5

.039"9.5mm, ⌀14x1.25HR 4

XR45

Copper

3.1/ 5

.059"9.5mm, ⌀14x1.25HR 4

4275

Copper

2.9/ 5

.035"9.5mm, ⌀14x1.25HR 5

J12YC

Copper

2.9/ 5

.035"9.5mm, ⌀14x1.25HR 12

BR5HS

Copper

2.9/ 5

.024"12.7mm, ⌀14x1.25HR 5

Deep reference (40)

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

XS85

Iridium-Platinum

4.2/ 5

.035"9.5mm, ⌀14x1.25HR 5

XS85

Iridium-Platinum

4.2/ 5

.035"9.5mm, ⌀14x1.25HR 5

XR5IX

Copper-Iridium

3.8/ 5

.039"9.5mm, ⌀14x1.25HR 5

W16P-U

Copper

-

3.3/ 5

.031"9.5mm, ⌀14x1.25HR 16

W14PR-U

Copper

-

3.3/ 5

.028"9.5mm, ⌀14x1.25HR 14

WR9FPZ+

Copper-Platinum

-

3.3/ 5

.079"9.5mm, ⌀14x1.25HR 9

WR9FPY

Copper-Platinum

-

3.3/ 5

.059"9.5mm, ⌀14x1.25HR 9

WR9FPZ

Copper-Platinum

-

3.3/ 5

.079"9.5mm, ⌀14x1.25HR 9

WR9FPY+

Copper-Platinum

-

3.3/ 5

.059"9.5mm, ⌀14x1.25HR 9

W14PR-U15

Copper

-

3.3/ 5

.059"9.5mm, ⌀14x1.25HR 14

W16P-U

Copper

-

3.3/ 5

.031"9.5mm, ⌀14x1.25HR 16

R5670-5

Copper

3.1/ 5

.031"9.5mm, ⌀14x1.25HR 5

R5670-5

Copper

3.1/ 5

.031"9.5mm, ⌀14x1.25HR 5

R5670-5

Copper

3.1/ 5

.031"9.5mm, ⌀14x1.25HR 5

J12YC

Copper

2.9/ 5

.035"9.5mm, ⌀14x1.25HR 12

RJ12YC

Copper

2.9/ 5

.035"9.5mm, ⌀14x1.25HR 12

4275

Copper

2.9/ 5

.035"9.5mm, ⌀14x1.25HR 5

J12YC

Copper

2.9/ 5

.035"9.5mm, ⌀14x1.25HR 12

86

Copper

2.9/ 5

.035"9.5mm, ⌀14x1.25HR 6

86BP

Copper

2.9/ 5

.035"9.5mm, ⌀14x1.25HR 6

58S

Copper

2.9/ 5

.035"9.5mm, ⌀14x1.25HR 18

RJ14YC

Copper

2.9/ 5

.035"9.5mm, ⌀14x1.25HR 14

RJ18YC

Copper

2.9/ 5

.035"9.5mm, ⌀14x1.25HR 18

847

Copper

2.9/ 5

.071"9.5mm, ⌀14x1.25HR 8

847BP

Copper

2.9/ 5

.071"9.5mm, ⌀14x1.25HR 8

847DP2

Copper

2.9/ 5

.071"9.5mm, ⌀14x1.25HR 8

WR9FCY

Copper

2.9/ 5

.059"9.5mm, ⌀14x1.25HR 9

66C2

Copper

2.9/ 5

.059"9.5mm, ⌀14x1.25HR 18

RJ18YC6

Copper

2.9/ 5

.059"9.5mm, ⌀14x1.25HR 18

J12YC

Copper

2.9/ 5

.035"9.5mm, ⌀14x1.25HR 12

RJ12YC

Copper

2.9/ 5

.035"9.5mm, ⌀14x1.25HR 12

4275

Copper

2.9/ 5

.035"9.5mm, ⌀14x1.25HR 5

425

Copper

2.9/ 5

.031"12.7mm, ⌀14x1.25HR 6

WR8AC

Copper

2.9/ 5

.024"12.7mm, ⌀14x1.25HR 8

5933

Copper

2.9/ 5

.030"12.7mm, ⌀14x1.25HR 86

W16FSR

Copper

2.9/ 5

.028"12.7mm, ⌀14x1.25HR 16

WR8AC+

Copper

2.9/ 5

.024"12.7mm, ⌀14x1.25HR 8

WR10FCY

Copper

2.7/ 5

.059"9.5mm, ⌀14x1.25HR 10

WR10FCY

Copper

2.7/ 5

.059"9.5mm, ⌀14x1.25HR 10

WR10FCZ

Copper

2.7/ 5

.079"9.5mm, ⌀14x1.25HR 10

One step colder (1)

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

W20PR-U

Copper

-

3.3/ 5

.028"9.5mm, ⌀14x1.25HR 20