Denso W20ESR-U Spark Plug

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Rating

3.3 / 5 Overall
Denso	W20ESR-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

0.8mm (.031")	20
Gap	Heat range
⌀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

Cross-reference (6)

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

WR7CC

Copper

2.9/ 5

.031"19mm, ⌀14x1.25HR 7

WR7CCX

Copper

2.9/ 5

.043"19mm, ⌀14x1.25HR 7

BR6ES

Copper

2.9/ 5

.035"19mm, ⌀14x1.25HR 6

404

Copper

2.9/ 5

.035"19mm, ⌀14x1.25HR 9

RN5C

Copper

2.9/ 5

.024"19mm, ⌀14x1.25HR 5

403

Copper

2.9/ 5

.035"19mm, ⌀14x1.25HR 7

Deep reference (52)

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

WR7CPX+

Copper-Platinum

-

3.3/ 5

.043"19mm, ⌀14x1.25HR 7

WR7CPX

Copper-Platinum

-

3.3/ 5

.043"19mm, ⌀14x1.25HR 7

W16ETR-S

Copper

-

3.3/ 5

.039"19mm, ⌀14x1.25HR 16

W16ESR-U

Copper

-

3.3/ 5

.031"19mm, ⌀14x1.25HR 16

W16ES-U

Copper

-

3.3/ 5

.031"19mm, ⌀14x1.25HR 16

W20ES-U11

Copper

-

3.3/ 5

.043"19mm, ⌀14x1.25HR 20

W20ETRL

Copper

-

3.3/ 5

.039"19mm, ⌀14x1.25HR 20

W20ETR-S

Copper

-

3.3/ 5

.039"19mm, ⌀14x1.25HR 20

W20ET-S

Copper

-

3.3/ 5

.039"19mm, ⌀14x1.25HR 20

W22ESR-U

Copper

-

3.3/ 5

.031"19mm, ⌀14x1.25HR 22

W22ES-U

Copper

-

3.3/ 5

.031"19mm, ⌀14x1.25HR 22

W24ESR-U

Copper

-

3.3/ 5

.031"19mm, ⌀14x1.25HR 24

R5671A-7

Copper

3.1/ 5

.031"19mm, ⌀14x1.25HR 7

404

Copper

2.9/ 5

.035"19mm, ⌀14x1.25HR 9

BR6ES

Copper

2.9/ 5

.035"19mm, ⌀14x1.25HR 6

404

Copper

2.9/ 5

.035"19mm, ⌀14x1.25HR 9

BR6ES-11

Copper

2.9/ 5

.043"19mm, ⌀14x1.25HR 6

403

Copper

2.9/ 5

.035"19mm, ⌀14x1.25HR 7

404

Copper

2.9/ 5

.035"19mm, ⌀14x1.25HR 9

WR7CC

Copper

2.9/ 5

.031"19mm, ⌀14x1.25HR 7

RN5C

Copper

2.9/ 5

.024"19mm, ⌀14x1.25HR 5

4055

Copper

2.9/ 5

.024"19mm, ⌀14x1.25HR 7

404BP

Copper

2.9/ 5

.035"19mm, ⌀14x1.25HR 9

WR7CC NS

Copper

2.9/ 5

.031"19mm, ⌀14x1.25HR 7

WR7CC+

Copper

2.9/ 5

.028"19mm, ⌀14x1.25HR 7

WR7CCX+

Copper

2.9/ 5

.043"19mm, ⌀14x1.25HR 7

4056

Copper

2.9/ 5

.031"19mm, ⌀14x1.25HR 9

WR7CC NS

Copper

2.9/ 5

.031"19mm, ⌀14x1.25HR 7

WR7CC+

Copper

2.9/ 5

.028"19mm, ⌀14x1.25HR 7

WR7CCX+

Copper

2.9/ 5

.043"19mm, ⌀14x1.25HR 7

WR7CC

Copper

2.9/ 5

.031"19mm, ⌀14x1.25HR 7

WR7CCX

Copper

2.9/ 5

.043"19mm, ⌀14x1.25HR 7

N5C

Copper

2.9/ 5

.026"19mm, ⌀14x1.25HR 5

RN5C

Copper

2.9/ 5

.024"19mm, ⌀14x1.25HR 5

W16EKR-S11

Copper

2.9/ 5

.043"19mm, ⌀14x1.25HR 16

B6EB-11

Copper

2.9/ 5

.043"19mm, ⌀14x1.25HR 6

B6ES-11

Copper

2.9/ 5

.043"19mm, ⌀14x1.25HR 6

BR6ES

Copper

2.9/ 5

.035"19mm, ⌀14x1.25HR 6

BR6ES-11

Copper

2.9/ 5

.043"19mm, ⌀14x1.25HR 6

BUR6EB-11

Copper

2.9/ 5

.043"19mm, ⌀14x1.25HR 6

404

Copper

2.9/ 5

.035"19mm, ⌀14x1.25HR 9

BR6ES

Copper

2.9/ 5

.035"19mm, ⌀14x1.25HR 6

W5CC

Copper

2.9/ 5

.020"19mm, ⌀14x1.25HR 5

N3C

Copper

2.9/ 5

.026"19mm, ⌀14x1.25HR 3

N4C

Copper

2.9/ 5

.026"19mm, ⌀14x1.25HR 4

RN4C

Copper

2.9/ 5

.024"19mm, ⌀14x1.25HR 4

W20EKR-S11

Copper

2.9/ 5

.043"19mm, ⌀14x1.25HR 20

B6EBL-11

Copper

2.9/ 5

.043"19mm, ⌀14x1.25HR 6

B7EB-11

Copper

2.9/ 5

.043"19mm, ⌀14x1.25HR 7

BR6EB-L-11

Copper

2.9/ 5

.043"19mm, ⌀14x1.25HR 6

BUR7EB-11

Copper

2.9/ 5

.043"19mm, ⌀14x1.25HR 7

BR6ES

Copper

2.9/ 5

.035"19mm, ⌀14x1.25HR 6

One step colder (2)

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

IW22

Copper-Iridium

4.3/ 5

.031"19mm, ⌀14x1.25HR 22

W22ESR-U

Copper

-

3.3/ 5

.031"19mm, ⌀14x1.25HR 22

Two steps colder (2)

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

IWM24

Copper-Iridium

4.3/ 5

.031"19mm, ⌀14x1.25HR 24

W24ESR-U

Copper

-

3.3/ 5

.031"19mm, ⌀14x1.25HR 24