Denso IK01-31 Spark Plug

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Rating
Brand	Code
4.5 / 5 Overall
Denso	IK01-31
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
0.7mm (.028")	31
⌀14mm	1.25mm
Thread diameter	Thread pitch
19mm (3/4")	16mm (5/8")
Reach	Hex size
Gasket	Solid
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 (4)

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

R7434-10

Iridium-Platinum

4.5/ 5

.028"19mm, ⌀14x1.25HR 10

C57

Copper

3.5/ 5

.026"19mm, ⌀14x1.25HR 57

C57A

Copper

3.3/ 5

.026"19mm, ⌀14x1.25HR 57

AR3931

Copper

3.3/ 5

.024"19mm, ⌀14x1.25HR 1

Deep reference (6)

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

IK02-31

Iridium-Platinum

4.3/ 5

.028"19mm, ⌀14x1.25HR 31

IK02-31

Iridium-Platinum

4.3/ 5

.028"19mm, ⌀14x1.25HR 31

AR3932

Copper

3.3/ 5

.024"19mm, ⌀14x1.25HR 2

R5671A-10

Copper

3.1/ 5

.020"19mm, ⌀14x1.25HR 10

R5671A-11

Copper

3.1/ 5

.020"19mm, ⌀14x1.25HR 11

R5671A-10

Copper

3.1/ 5

.020"19mm, ⌀14x1.25HR 10

Same specs (2)

Products that have identical characteristics that impact interchangability

IQ01-31

Iridium-Platinum

4.5/ 5

.028"19mm, ⌀14x1.25HR 31

R7436-10

Iridium-Platinum

4.5/ 5

.028"19mm, ⌀14x1.25HR 10

One step colder (2)

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

IK01-34

Iridium-Platinum

4.5/ 5

.028"19mm, ⌀14x1.25HR 34

IQ01-34

Iridium-Platinum

4.5/ 5

.028"19mm, ⌀14x1.25HR 34