Denso W24S-U Spark Plug

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Rating

3.3 / 5 Overall
Denso	W24S-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")	24
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 (4)

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

R5670-8

Copper

3.1/ 5

.031"9.5mm, ⌀14x1.25HR 8

B8S

Copper

2.9/ 5

.028"9.5mm, ⌀14x1.25HR 8

353

Copper

2.9/ 5

.031"9.5mm, ⌀14x1.25HR 2

J4C

Copper

2.9/ 5

.030"9.5mm, ⌀14x1.25HR 4

Deep reference (9)

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

J61

Copper

3.5/ 5

.026"9.5mm, ⌀14x1.25HR 61

W22S-U

Copper

-

3.3/ 5

.028"9.5mm, ⌀14x1.25HR 22

292

Copper

2.9/ 5

.024"9.5mm, ⌀14x1.25HR 1

353

Copper

2.9/ 5

.031"9.5mm, ⌀14x1.25HR 2

353DP

Copper

2.9/ 5

.031"9.5mm, ⌀14x1.25HR 2

J4C

Copper

2.9/ 5

.030"9.5mm, ⌀14x1.25HR 4

B8S

Copper

2.9/ 5

.028"9.5mm, ⌀14x1.25HR 8

353

Copper

2.9/ 5

.031"9.5mm, ⌀14x1.25HR 2

B7S

Copper

2.9/ 5

.028"9.5mm, ⌀14x1.25HR 7

One step colder (1)

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

W27SU

Copper

-

3.3/ 5

.028"9.5mm, ⌀14x1.25HR 27

Two steps colder (1)

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

W31SU

Copper

-

3.3/ 5

.028"9.5mm, ⌀14x1.25HR 31