Denso RU01-31 Spark Plug

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Rating

3.8 / 5 Overall
Denso	RU01-31
Brand	Code
4.0 / 5 Materials
Copper	Iridium
Ground electrode	Center electrode
3.5 / 5 Design
Surface Discharge	Standard
Ground type	Center type

Specifications

1.1mm (.043")	31
Gap	Heat range
⌀10mm	1mm
Thread diameter	Thread pitch
19mm (3/4")	16mm (5/8")
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

G54V

Copper

3.4/ 5

.053"19mm, ⌀10x1HR 54

RG59V

Copper

3.4/ 5

.050"19mm, ⌀10x1HR 59

R0045J-10

Copper

3.2/ 5

.043"19mm, ⌀10x1HR 10

R0045Q-10

Copper

3.2/ 5

.012"19mm, ⌀10x1HR 10

Deep reference (2)

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

G54V

Copper

3.4/ 5

.053"19mm, ⌀10x1HR 54

R0045Q-10

Copper

3.2/ 5

.012"19mm, ⌀10x1HR 10

One step colder (1)

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

RU01-34

Copper-Iridium

-

3.8/ 5

.043"19mm, ⌀10x1HR 34