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Champion RDJ7J OBS Spark Plug

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Rating
2.9 / 5
Overall
ChampionRDJ7J OBS
BrandCode
3.0 / 5
Materials
CopperCopper
Ground electrodeCenter electrode
2.8 / 5
Design
StandardStandard
Ground typeCenter type
Specifications
0.6mm (.024")7
GapHeat range
⌀14mm1.25mm
Thread diameterThread pitch
7.8mm (.307")16mm (5/8")
ReachHex size
TaperedSolid
SeatTerminal
1Non-Projected
Ground countProjection

Cross-reference and alternatives

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Same specs (2)

Products that have identical characteristics that impact interchangability
Copper-Iridium
3.8/ 5
.024"7.8mm, ⌀14x1.25HR 8
Copper
-
2.9/ 5
.024"7.8mm, ⌀14x1.25HR 7

One step colder (1)

Colder spark plugs with same characteristics for moderately tuned engines (75–100 hp increase)
Copper-Iridium
3.8/ 5
.024"7.8mm, ⌀14x1.25HR 6