Denso IU01-31 Spark Plug

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Denso IU01-31 image

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Rating
Brand	Code
4.5 / 5 Overall
Denso	IU01-31
4.5 / 5 Materials
Platinum	Iridium
Ground electrode	Center electrode
4.5 / 5 Design
Slant	Fine Wire
Ground type	Center type

Specifications
Gap	Heat range
0.6mm (.024")	31
⌀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

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

R0373A-10

Iridium-Platinum

-

4.5/ 5

.024"19mm, ⌀10x1HR 10

G55R

Copper

3.2/ 5

.020"19mm, ⌀10x1HR 55

Deep reference (3)

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

R0373A-10

Iridium-Platinum

-

4.5/ 5

.024"19mm, ⌀10x1HR 10

G55R

Copper

3.2/ 5

.020"19mm, ⌀10x1HR 55

G57C

Copper

2.9/ 5

.030"19mm, ⌀10x1HR 57

One step colder (2)

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

IU01-34

Iridium-Platinum

-

4.5/ 5

.024"19mm, ⌀10x1HR 34

R0373A-11

Iridium-Platinum

-

4.5/ 5

.024"19mm, ⌀10x1HR 11