NGK MAR9A-J 6869 Spark Plug

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Rating

3.3 / 5 Overall
NGK	MAR9A-J
Brand	Code
3.0 / 5 Materials
Copper	Copper
Ground electrode	Center electrode
3.8 / 5 Design
Multi-Ground	Standard
Ground type	Center type

Specifications

0.8mm (.031")	9
Gap	Heat range
⌀10mm	1mm
Thread diameter	Thread pitch
19mm (3/4")	14mm (9/16")
Reach	Hex size
Gasket	Solid
Seat	Terminal
2	Non-Projected
Ground count	Projection

Cross-reference and alternatives

One step colder (1)

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

MAR10A-J

Copper

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3.3/ 5

.031"19mm, ⌀10x1HR 10