NGK IFR6B11 Spark Plug

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Rating

4.2 / 5 Overall
NGK	IFR6B11
Brand	Code
4.5 / 5 Materials
Platinum	Iridium
Ground electrode	Center electrode
3.5 / 5 Design
Standard	Fine Wire
Ground type	Center type

Specifications

1.1mm (.043")	6
Gap	Heat range
⌀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

Same specs (41)

Products that have identical characteristics that impact interchangability

IFR6E-11

Iridium-Platinum

-

4.2/ 5

.043"19mm, ⌀14x1.25HR 6

IFR6L-11

Iridium-Platinum

-

4.2/ 5

.043"19mm, ⌀14x1.25HR 6

IFR6T-11

Iridium-Platinum

-

4.2/ 5

.043"19mm, ⌀14x1.25HR 6

IFR6G-11K

Iridium-Platinum

-

4.2/ 5

.043"19mm, ⌀14x1.25HR 6

VK20G

Iridium-Platinum

-

4.2/ 5

.043"19mm, ⌀14x1.25HR 20

VK20PRZ-11

Iridium-Platinum

-

4.2/ 5

.043"19mm, ⌀14x1.25HR 20

VK20

Iridium-Platinum

-

4.2/ 5

.043"19mm, ⌀14x1.25HR 20

VQ20

Iridium-Platinum

-

4.2/ 5

.043"19mm, ⌀14x1.25HR 20

SK20PR-L11

Iridium-Platinum

-

4.2/ 5

.043"19mm, ⌀14x1.25HR 20

SK20BGR11

Iridium-Platinum

-

4.2/ 5

.043"19mm, ⌀14x1.25HR 20

SVK20RZ11

Iridium-Platinum

-

4.2/ 5

.043"19mm, ⌀14x1.25HR 20

SK20PR-A11

Iridium-Platinum

-

4.2/ 5

.043"19mm, ⌀14x1.25HR 20

SK20R11

Iridium-Platinum

-

4.2/ 5

.043"19mm, ⌀14x1.25HR 20

SK20R-P11

Iridium-Platinum

-

4.2/ 5

.043"19mm, ⌀14x1.25HR 20

IFR6J11

Iridium-Platinum

-

4.2/ 5

.043"19mm, ⌀14x1.25HR 6

BCPR6EIX-11

Copper-Iridium

3.8/ 5

.043"19mm, ⌀14x1.25HR 6

PFR6G-11

Platinum

3.8/ 5

.043"19mm, ⌀14x1.25HR 6

ZFR6AIX-11S

Copper-Iridium

3.8/ 5

.043"19mm, ⌀14x1.25HR 6

PFR6L-11

Platinum

3.8/ 5

.043"19mm, ⌀14x1.25HR 6

BCPR6EP-N-11

Platinum

3.8/ 5

.043"19mm, ⌀14x1.25HR 6

PFR6A-11

Platinum

3.8/ 5

.043"19mm, ⌀14x1.25HR 6

PFR6B-11

Platinum

3.8/ 5

.043"19mm, ⌀14x1.25HR 6

PK20PR-P11

Platinum

3.8/ 5

.043"19mm, ⌀14x1.25HR 20

BKR6EIX-11

Copper-Iridium

3.8/ 5

.043"19mm, ⌀14x1.25HR 6

PFR6N-11

Platinum

3.8/ 5

.043"19mm, ⌀14x1.25HR 6

BCPR6EP-11

Platinum

3.8/ 5

.043"19mm, ⌀14x1.25HR 6

PFR6J-11

Platinum

3.8/ 5

.043"19mm, ⌀14x1.25HR 6

K20PRTP11

Platinum

3.8/ 5

.043"19mm, ⌀14x1.25HR 20

PK20PR11

Platinum

3.8/ 5

.043"19mm, ⌀14x1.25HR 20

PK20R11

Platinum

3.8/ 5

.043"19mm, ⌀14x1.25HR 20

PK20PR-L11

Platinum

3.8/ 5

.043"19mm, ⌀14x1.25HR 20

BKR6EP-11

Copper-Platinum

3.5/ 5

.043"19mm, ⌀14x1.25HR 6

BCPR6EY-N-11

Copper

3.1/ 5

.043"19mm, ⌀14x1.25HR 6

BCPR6EY-11

Copper

3.1/ 5

.043"19mm, ⌀14x1.25HR 6

ZFR6K-11

Copper

3.1/ 5

.043"19mm, ⌀14x1.25HR 6

BKR6E-N-11

Copper

3.1/ 5

.043"19mm, ⌀14x1.25HR 6

BCPR6E-11

Copper

3.1/ 5

.043"19mm, ⌀14x1.25HR 6

BKR6E-11

Copper

3.1/ 5

.043"19mm, ⌀14x1.25HR 6

K20PR-L11

Copper

2.9/ 5

.043"19mm, ⌀14x1.25HR 20

BCPR6ES-11

Copper

2.9/ 5

.043"19mm, ⌀14x1.25HR 6

BKR6ES-11

Copper

2.9/ 5

.043"19mm, ⌀14x1.25HR 6

Bigger gap (5)

0.1..0.3 mm gap increase for better performance given your ignition system can handle it

PK20PR-L13

Platinum

3.8/ 5

.050"19mm, ⌀14x1.25HR 20

PK20R13

Platinum

3.8/ 5

.050"19mm, ⌀14x1.25HR 20

PFR6L-13

Platinum

3.8/ 5

.050"19mm, ⌀14x1.25HR 6

BCPR6EP-13

Platinum

3.8/ 5

.050"19mm, ⌀14x1.25HR 6

PFR6G-13

Platinum

3.8/ 5

.050"19mm, ⌀14x1.25HR 6

One step colder (13)

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

VK22PR-Z11

Iridium-Platinum

-

4.2/ 5

.043"19mm, ⌀14x1.25HR 22

IFR7L-11

Iridium-Platinum

-

4.2/ 5

.043"19mm, ⌀14x1.25HR 7

IFR7G-11KS

Iridium-Platinum

-

4.2/ 5

.043"19mm, ⌀14x1.25HR 7

PK22PR11

Platinum

3.8/ 5

.043"19mm, ⌀14x1.25HR 22

PK22PR-L11S

Platinum

3.8/ 5

.043"19mm, ⌀14x1.25HR 22

PFR7G11

Platinum

3.8/ 5

.043"19mm, ⌀14x1.25HR 7

BCPR7EIX-11

Copper-Iridium

3.8/ 5

.043"19mm, ⌀14x1.25HR 7

PFR7G-11S

Platinum

3.8/ 5

.043"19mm, ⌀14x1.25HR 7

BKR7EIX-11

Copper-Iridium

3.8/ 5

.043"19mm, ⌀14x1.25HR 7

BKR7E-11

Copper

3.1/ 5

.043"19mm, ⌀14x1.25HR 7

K22PRL11

Copper

2.9/ 5

.043"19mm, ⌀14x1.25HR 22

BCPR7ES-11

Copper

2.9/ 5

.043"19mm, ⌀14x1.25HR 7

BKR7ES-11

Copper

2.9/ 5

.043"19mm, ⌀14x1.25HR 7

Two steps colder (2)

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

VK24PR-Z11

Iridium-Platinum

-

4.2/ 5

.043"19mm, ⌀14x1.25HR 24

IFR8H-11

Iridium-Platinum

-

4.2/ 5

.043"19mm, ⌀14x1.25HR 8