NGK LZFR5C-11 Spark Plug

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Rating

2.9 / 5 Overall
NGK	LZFR5C-11
Brand	Code
3.0 / 5 Materials
Copper	Copper
Ground electrode	Center electrode
2.8 / 5 Design
Standard	Standard
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

Cross-reference (2)

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

6003

Copper

-

2.9/ 5

.039"26.5mm, ⌀14x1.25HR 1

REC12MCC4

Copper

-

2.9/ 5

.039"26.5mm, ⌀14x1.25HR 12

Same specs (2)

Products that have identical characteristics that impact interchangability

LZFR5BI-11

Iridium-Platinum

4.2/ 5

.043"26.5mm, ⌀14x1.25HR 5

LZFR5CI-11

Iridium-Platinum

4.2/ 5

.043"26.5mm, ⌀14x1.25HR 5

Bigger gap (1)

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

242229764

Iridium

4.5/ 5

.049"26.5mm, ⌀14x1.25HR 8

One step colder (2)

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

PLZFR6A-11S

Platinum

3.8/ 5

.043"26.5mm, ⌀14x1.25HR 6

LZFR6AP11GS

Copper-Platinum

3.5/ 5

.043"26.5mm, ⌀14x1.25HR 6