NGK ZFR6FIX-11 Spark Plug

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Rating

3.8 / 5 Overall
NGK	ZFR6FIX-11
Brand	Code
4.0 / 5 Materials
Copper	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

Cross-reference (6)

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

FR7KII33X

Iridium

4.5/ 5

.043"19mm, ⌀14x1.25HR 7

FR7LII33X

Iridium

4.5/ 5

.043"19mm, ⌀14x1.25HR 7

FR8KII332X

Iridium

4.5/ 5

.043"19mm, ⌀14x1.25HR 8

IK20L

Copper-Iridium

4.3/ 5

.043"19mm, ⌀14x1.25HR 20

IK16L

Copper-Iridium

4.3/ 5

.043"19mm, ⌀14x1.25HR 16

XP5224

Iridium-Platinum

4.2/ 5

.045"19mm, ⌀14x1.25HR 3

Deep reference (24)

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

SKJ20DR-M11

Iridium-Platinum

4.3/ 5

.043"19mm, ⌀14x1.25HR 20

SK22PR-M11S

Iridium-Platinum

4.3/ 5

.043"19mm, ⌀14x1.25HR 22

SKJ16DR-M11

Iridium-Platinum

4.3/ 5

.043"19mm, ⌀14x1.25HR 16

SKJ20DR-M11S

Iridium-Platinum

4.3/ 5

.043"19mm, ⌀14x1.25HR 20

SKJ20DR-M13

Iridium-Platinum

4.3/ 5

.050"19mm, ⌀14x1.25HR 20

RC12WMPB4

Iridium-Platinum

4.2/ 5

.039"19mm, ⌀14x1.25HR 12

RC12WLPB4

Iridium-Platinum

4.2/ 5

.039"19mm, ⌀14x1.25HR 12

SKJ16CR-L11

Iridium-Platinum

4.2/ 5

.043"19mm, ⌀14x1.25HR 16

IZFR5K11

Iridium-Platinum

4.2/ 5

.043"19mm, ⌀14x1.25HR 5

IZFR6F-11

Iridium-Platinum

4.2/ 5

.043"19mm, ⌀14x1.25HR 6

IZFR6N-E

Iridium-Platinum

4.2/ 5

.031"19mm, ⌀14x1.25HR 6

IFR7L-11

Iridium-Platinum

4.2/ 5

.043"19mm, ⌀14x1.25HR 7

IZFR5G

Iridium-Platinum

4.2/ 5

.031"19mm, ⌀14x1.25HR 5

IZFR5J

Iridium-Platinum

4.2/ 5

.031"19mm, ⌀14x1.25HR 5

IZFR6K-11

Iridium-Platinum

4.2/ 5

.043"19mm, ⌀14x1.25HR 6

IFR7G-11KS

Iridium-Platinum

4.2/ 5

.043"19mm, ⌀14x1.25HR 7

IZFR6H-11

Iridium-Platinum

4.2/ 5

.043"19mm, ⌀14x1.25HR 6

IZFR6K-11S

Iridium-Platinum

4.2/ 5

.043"19mm, ⌀14x1.25HR 6

IZFR6K-13

Iridium-Platinum

4.2/ 5

.050"19mm, ⌀14x1.25HR 6

PLZTR4A-13

Platinum

-

3.8/ 5

.050"25mm, ⌀14x1.25HR 4

242235776

Platinum

-

3.8/ 5

.039"19mm, ⌀14x1.25HR 7

ZFR5FIX-11

Copper-Iridium

-

3.8/ 5

.043"19mm, ⌀14x1.25HR 5

PZFR5Q-11

Platinum

-

3.8/ 5

.043"19mm, ⌀14x1.25HR 5

PZFR5J-11

Platinum

-

3.8/ 5

.043"19mm, ⌀14x1.25HR 5

Same specs (17)

Products that have identical characteristics that impact interchangability

IZFR6F-11

Iridium-Platinum

4.2/ 5

.043"19mm, ⌀14x1.25HR 6

IZFR6K-11

Iridium-Platinum

4.2/ 5

.043"19mm, ⌀14x1.25HR 6

IZFR6K-11S

Iridium-Platinum

4.2/ 5

.043"19mm, ⌀14x1.25HR 6

IZFR6H-11

Iridium-Platinum

4.2/ 5

.043"19mm, ⌀14x1.25HR 6

PKJ20CR-L11

Platinum

-

3.8/ 5

.043"19mm, ⌀14x1.25HR 20

PQ20R-P11

Platinum

-

3.8/ 5

.043"19mm, ⌀14x1.25HR 20

PZFR6F-11

Platinum

-

3.8/ 5

.043"19mm, ⌀14x1.25HR 6

PZFR6E-11

Platinum

-

3.8/ 5

.043"19mm, ⌀14x1.25HR 6

PQ20R

Platinum

-

3.8/ 5

.043"19mm, ⌀14x1.25HR 20

ZFR6A-11

Copper

3.1/ 5

.043"19mm, ⌀14x1.25HR 6

ZFR6F-11

Copper

3.1/ 5

.043"19mm, ⌀14x1.25HR 6

ZFR6J-11

Copper

3.1/ 5

.043"19mm, ⌀14x1.25HR 6

ZFR6F-11 BLYB

Copper

3.1/ 5

.043"19mm, ⌀14x1.25HR 6

ZFR6F-11G

Copper

3.1/ 5

.043"19mm, ⌀14x1.25HR 6

QJ20CR11

Copper

2.9/ 5

.043"19mm, ⌀14x1.25HR 20

KJ20CR11

Copper

2.9/ 5

.043"19mm, ⌀14x1.25HR 20

KJ20CR-L11

Copper

2.8/ 5

.043"19mm, ⌀14x1.25HR 20

Bigger gap (2)

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

IZFR6K-13

Iridium-Platinum

4.2/ 5

.050"19mm, ⌀14x1.25HR 6

PQ20R13

Platinum

-

3.8/ 5

.050"19mm, ⌀14x1.25HR 20

One step colder (2)

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

ZFR7F-11

Copper

3.1/ 5

.043"19mm, ⌀14x1.25HR 7

KJ22CR-L11

Copper

2.8/ 5

.043"19mm, ⌀14x1.25HR 22