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Champion 991MX Spark Plug

HomeSpark PlugsChampion → 991MX
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Rating
2.9 / 5
Overall
Champion991MX
BrandCode
3.0 / 5
Materials
CopperCopper
Ground electrodeCenter electrode
2.8 / 5
Design
StandardStandard
Ground typeCenter type
Specifications
0.9mm (.035")8
GapHeat range
⌀12mm1.25mm
Thread diameterThread pitch
26.5mm (1.04")14mm (9/16")
ReachHex size
GasketSolid
SeatTerminal
1Non-Projected
Ground countProjection

Cross-reference and alternatives

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Same specs (1)

Products that have identical characteristics that impact interchangability
Copper
-
2.9/ 5
.035"26.5mm, ⌀12x1.25HR 8

Bigger gap (1)

0.1..0.3 mm gap increase for better performance given your ignition system can handle it
Copper-Platinum
3.5/ 5
.039"26.5mm, ⌀12x1.25HR 7