Denso IW01-27 Spark Plug

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Rating
Brand	Code
4.5 / 5 Overall
Denso	IW01-27
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")	27
⌀14mm	1.25mm
Thread diameter	Thread pitch
19mm (3/4")	21mm (13/16")
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 (5)

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

R7376-9

Iridium-Platinum

4.5/ 5

.024"19mm, ⌀14x1.25HR 9

R6850-9

Platinum

4.2/ 5

.035"19mm, ⌀14x1.25HR 9

BR9ECSIX

Copper-Iridium

4.0/ 5

.031"19mm, ⌀14x1.25HR 9

R6061-9

Copper

3.3/ 5

.031"19mm, ⌀14x1.25HR 9

R6254E-9

Copper

3.3/ 5

.024"19mm, ⌀14x1.25HR 9

Deep reference (8)

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

IW06-27

Iridium-Platinum

4.5/ 5

.024"19mm, ⌀14x1.25HR 27

IW06-27

Iridium-Platinum

4.5/ 5

.024"19mm, ⌀14x1.25HR 27

IW06-27

Iridium-Platinum

4.5/ 5

.024"19mm, ⌀14x1.25HR 27

IW06-27

Iridium-Platinum

4.5/ 5

.024"19mm, ⌀14x1.25HR 27

IW27

Copper-Iridium

4.3/ 5

.028"19mm, ⌀14x1.25HR 27

AR2593

Copper

3.3/ 5

.024"19mm, ⌀14x1.25HR 2

AR2594

Copper

3.3/ 5

.024"19mm, ⌀14x1.25HR 3

AR51

Copper

3.3/ 5

.024"19mm, ⌀14x1.25HR 3

Same specs (3)

Products that have identical characteristics that impact interchangability

R6918B-9

Copper-Platinum

3.8/ 5

.024"19mm, ⌀14x1.25HR 9

R6918C-9

Copper-Platinum

3.8/ 5

.024"19mm, ⌀14x1.25HR 9

R6252E-9

Copper

3.3/ 5

.024"19mm, ⌀14x1.25HR 9

One step colder (3)

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

IW01-31

Iridium-Platinum

4.5/ 5

.024"19mm, ⌀14x1.25HR 31

IWM01-31

Iridium-Platinum

4.5/ 5

.024"19mm, ⌀14x1.25HR 31

R7376-10

Iridium-Platinum

4.5/ 5

.024"19mm, ⌀14x1.25HR 10

Two steps colder (3)

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

IW01-34

Iridium-Platinum

4.5/ 5

.024"19mm, ⌀14x1.25HR 34

IWM01-34

Iridium-Platinum

4.5/ 5

.024"19mm, ⌀14x1.25HR 34

R6179A-11P

Platinum

4.2/ 5

.024"19mm, ⌀14x1.25HR 11