Denso W20S-U Spark Plug

View on

Verify with Amazon ConfirmedFit before buying

Rating

3.3 / 5 Overall
Denso	W20S-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")	20
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 (3)

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

B6S

Copper

2.9/ 5

.028"9.5mm, ⌀14x1.25HR 6

303

Copper

2.9/ 5

.035"9.5mm, ⌀14x1.25HR 4

J6C

Copper

2.9/ 5

.030"9.5mm, ⌀14x1.25HR 6

Deep reference (12)

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

W16S-U

Copper

-

3.3/ 5

.028"9.5mm, ⌀14x1.25HR 16

823-1

Copper

2.9/ 5

.030"9.5mm, ⌀14x1.25HR 6

841-1

Copper

2.9/ 5

.030"9.5mm, ⌀14x1.25HR 8

J11C

Copper

2.9/ 5

.030"9.5mm, ⌀14x1.25HR 11

J6C

Copper

2.9/ 5

.030"9.5mm, ⌀14x1.25HR 6

295

Copper

2.9/ 5

.030"9.5mm, ⌀14x1.25HR 7

J6C

Copper

2.9/ 5

.030"9.5mm, ⌀14x1.25HR 6

RJ6C

Copper

2.9/ 5

.030"9.5mm, ⌀14x1.25HR 6

B7S

Copper

2.9/ 5

.028"9.5mm, ⌀14x1.25HR 7

BR6S

Copper

2.9/ 5

.028"9.5mm, ⌀14x1.25HR 6

303

Copper

2.9/ 5

.035"9.5mm, ⌀14x1.25HR 4

B6S

Copper

2.9/ 5

.028"9.5mm, ⌀14x1.25HR 6

Same specs (1)

Products that have identical characteristics that impact interchangability

W20M-U

Copper

-

3.3/ 5

.028"9.5mm, ⌀14x1.25HR 20

One step colder (2)

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

W22S-U

Copper

-

3.3/ 5

.028"9.5mm, ⌀14x1.25HR 22

W22M-U

Copper

-

3.3/ 5

.028"9.5mm, ⌀14x1.25HR 22

Two steps colder (1)

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

W24S-U

Copper

-

3.3/ 5

.028"9.5mm, ⌀14x1.25HR 24