Denso W9EP Spark Plug

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Rating
Brand	Code
2.9 / 5 Overall
Denso	W9EP
3.0 / 5 Materials
Copper	Copper
Ground electrode	Center electrode
2.8 / 5 Design
Standard	Standard
Ground type	Center type

Specifications
Gap	Heat range
0.8mm (.031")	9
⌀14mm	1.25mm
Thread diameter	Thread pitch
19mm (3/4")	21mm (13/16")
Reach	Hex size
Gasket	Removable Nut
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 (2)

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

66

Copper

2.9/ 5

.035"19mm, ⌀14x1.25HR 12

BPR2ES

Copper

2.9/ 5

.031"19mm, ⌀14x1.25HR 2

Deep reference (13)

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

VW16

Iridium-Platinum

4.2/ 5

.043"19mm, ⌀14x1.25HR 16

W14EXR-U

Copper

3.3/ 5

.031"19mm, ⌀14x1.25HR 14

W14EXR-U11

Copper

3.3/ 5

.043"19mm, ⌀14x1.25HR 14

W14EX-U

Copper

3.3/ 5

.031"19mm, ⌀14x1.25HR 14

W14EX-U11

Copper

3.3/ 5

.043"19mm, ⌀14x1.25HR 14

W14EP-U

Copper

3.3/ 5

.031"19mm, ⌀14x1.25HR 14

WR9DCX

Copper

2.9/ 5

.043"19mm, ⌀14x1.25HR 9

WR9DC+

Copper

2.9/ 5

.031"19mm, ⌀14x1.25HR 9

BPR2ES

Copper

2.9/ 5

.031"19mm, ⌀14x1.25HR 2

BPR5ES

Copper

2.9/ 5

.035"19mm, ⌀14x1.25HR 5

66

Copper

2.9/ 5

.035"19mm, ⌀14x1.25HR 12

66BP

Copper

2.9/ 5

.035"19mm, ⌀14x1.25HR 12

66DP2

Copper

2.9/ 5

.035"19mm, ⌀14x1.25HR 12

Two steps colder (1)

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

WR9DC+ NS

Copper

2.9/ 5

.031"19mm, ⌀14x1.25HR 9