NGK IZFR7M 4214 Spark Plug

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Rating
Brand	Code
4.2 / 5 Overall
NGK	IZFR7M
4.5 / 5 Materials
Platinum	Iridium
Ground electrode	Center electrode
3.5 / 5 Design
Standard	Fine Wire
Ground type	Center type

Specifications
Gap	Heat range
0.8mm (.031")	7
⌀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

How we find alternative spark plugs How we rate spark plugs

Cross-reference (1)

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

XP5405

Iridium-Platinum

4.2/ 5

.050"19mm, ⌀14x1.25HR 3

Deep reference (3)

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

IZFR6J

Iridium-Platinum

4.2/ 5

.031"19mm, ⌀14x1.25HR 6

RC12PEPB5

Platinum

3.8/ 5

.049"19mm, ⌀14x1.25HR 12

ZFR5FIX-11

Copper-Iridium

3.8/ 5

.043"19mm, ⌀14x1.25HR 5

Same specs (3)

Products that have identical characteristics that impact interchangability

PZFR7G-G

Platinum

3.8/ 5

.031"19mm, ⌀14x1.25HR 7

ZFR7F

Copper

3.1/ 5

.031"19mm, ⌀14x1.25HR 7

KJ22CRL8

Copper

2.8/ 5

.031"19mm, ⌀14x1.25HR 22

Bigger gap (2)

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

ZFR7F-11

Copper

3.1/ 5

.043"19mm, ⌀14x1.25HR 7

KJ22CR-L11

Copper

2.8/ 5

.043"19mm, ⌀14x1.25HR 22