NGK LFR5AHX Spark Plug

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Rating

4.7 / 5 Overall
NGK	LFR5AHX
Brand	Code
4.5 / 5 Materials
Platinum	Ruthenium
Ground electrode	Center electrode
5.0 / 5 Design
Fine Wire	Fine Wire
Ground type	Center type

Specifications

1.1mm (.043")	5
Gap	Heat range
⌀14mm	1.25mm
Thread diameter	Thread pitch
26.5mm (1.04")	16mm (5/8")
Reach	Hex size
Gasket	Solid
Seat	Terminal
1	Non-Projected
Ground count	Projection

Cross-reference and alternatives

Same specs (6)

Products that have identical characteristics that impact interchangability

FK16HR-11

Iridium-Platinum

-

4.7/ 5

.043"26.5mm, ⌀14x1.25HR 16

FK16HQR11

Iridium-Platinum

-

4.7/ 5

.043"26.5mm, ⌀14x1.25HR 16

DILFR5A-11D

Iridium-Platinum

-

4.7/ 5

.043"26.5mm, ⌀14x1.25HR 5

DILFR5A11

Iridium-Platinum

-

4.7/ 5

.043"26.5mm, ⌀14x1.25HR 5

DILFR5E11

Iridium-Platinum

-

4.7/ 5

.043"26.5mm, ⌀14x1.25HR 5

DILFR5C11D

Iridium-Platinum

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4.7/ 5

.043"26.5mm, ⌀14x1.25HR 5

One step colder (4)

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

FK20HR-11

Iridium-Platinum

-

4.7/ 5

.043"26.5mm, ⌀14x1.25HR 20

LFR6AHX-S

Platinum-Ruthenium

-

4.7/ 5

.043"26.5mm, ⌀14x1.25HR 6

DILFR6J11

Iridium-Platinum

-

4.7/ 5

.043"26.5mm, ⌀14x1.25HR 6

DILFR6D11

Iridium-Platinum

-

4.7/ 5

.043"26.5mm, ⌀14x1.25HR 6