Denso IRE01-27 Spark Plug

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Rating

4.3 / 5 Overall
Denso	IRE01-27
Brand	Code
4.5 / 5 Materials
Platinum	Iridium
Ground electrode	Center electrode
4.0 / 5 Design
Flat	Fine Wire
Ground type	Center type

Specifications

0.7mm (.028")	27
Gap	Heat range
⌀14mm	1.25mm
Thread diameter	Thread pitch
21.5mm (.846")	21mm (13/16")
Reach	Hex size
Gasket	Removable Nut
Seat	Terminal
1	Non-Projected
Ground count	Projection

Cross-reference and alternatives

Cross-reference (10)

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

R7420-9

Iridium-Platinum

4.5/ 5

.028"21mm, ⌀14x1.25HR 9

R6725-9

Platinum

4.0/ 5

.028"21.5mm, ⌀14x1.25HR 9

BR8EQ

Copper

3.3/ 5

.049"19mm, ⌀14x1.25HR 8

BR8ET

Copper

3.3/ 5

.041"19mm, ⌀14x1.25HR 8

2526

Copper

2.9/ 5

.055"19mm, ⌀14x1.25HR 5

BUR7EQ

Copper

0.0/ 5

.055"19mm, ⌀14x1.25HR 7

BUR7EQP

Copper-Platinum

0.0/ 5

.055"19mm, ⌀14x1.25HR 7

BUR8EQP

Copper-Platinum

0.0/ 5

.055"19mm, ⌀14x1.25HR 8

BUR9EQ

Copper

0.0/ 5

.055"19mm, ⌀14x1.25HR 9

BUR9EQP

Copper-Platinum

0.0/ 5

.055"19mm, ⌀14x1.25HR 9

Deep reference (24)

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

W25EDR14

Copper

3.3/ 5

.055"20mm, ⌀14x1.25HR 25

W25EBR

Copper

3.3/ 5

.043"20mm, ⌀14x1.25HR 25

W20EAR

Copper

3.3/ 5

.028"20mm, ⌀14x1.25HR 20

W25EBR

Copper

3.3/ 5

.043"20mm, ⌀14x1.25HR 25

W27EDR14

Copper

3.3/ 5

.055"20mm, ⌀14x1.25HR 27

W22EBR

Copper

3.3/ 5

.043"20mm, ⌀14x1.25HR 22

W25EAR

Copper

3.3/ 5

.028"20mm, ⌀14x1.25HR 25

W25EDR14

Copper

3.3/ 5

.055"20mm, ⌀14x1.25HR 25

BR8EQ-14

Copper

3.3/ 5

.055"19mm, ⌀14x1.25HR 8

BR7EQ-14

Copper

3.3/ 5

.055"19mm, ⌀14x1.25HR 7

BR9EQ-14

Copper

3.3/ 5

.055"19mm, ⌀14x1.25HR 9

BR8EQ

Copper

3.3/ 5

.049"19mm, ⌀14x1.25HR 8

BR8ET

Copper

3.3/ 5

.041"19mm, ⌀14x1.25HR 8

W27EDR14

Copper

3.3/ 5

.055"20mm, ⌀14x1.25HR 27

S29A

Copper

3.2/ 5

.031"21.5mm, ⌀14x1.25HR 29

S31A

Copper

3.2/ 5

.055"21.5mm, ⌀14x1.25HR 31

2526

Copper

2.9/ 5

.055"19mm, ⌀14x1.25HR 5

2526

Copper

2.9/ 5

.055"19mm, ⌀14x1.25HR 5

2526

Copper

2.9/ 5

.055"19mm, ⌀14x1.25HR 5

2526

Copper

2.9/ 5

.055"19mm, ⌀14x1.25HR 5

2526

Copper

2.9/ 5

.055"19mm, ⌀14x1.25HR 5

BUR8EQP

Copper-Platinum

0.0/ 5

.055"19mm, ⌀14x1.25HR 8

BUR7EQP

Copper-Platinum

0.0/ 5

.055"19mm, ⌀14x1.25HR 7

BUR9EQP

Copper-Platinum

0.0/ 5

.055"19mm, ⌀14x1.25HR 9

One step colder (1)

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

IRE01-31

Iridium-Platinum

-

4.3/ 5

.028"21.5mm, ⌀14x1.25HR 31

Two steps colder (2)

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

IRE01-34

Iridium-Platinum

-

4.3/ 5

.028"21.5mm, ⌀14x1.25HR 34

R6725-11

Platinum

4.0/ 5

.028"21.5mm, ⌀14x1.25HR 11