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NGK B4LMY Spark Plug

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Rating
3.1 / 5
Overall
NGKB4LMY
BrandCode
3.0 / 5
Materials
CopperCopper
Ground electrodeCenter electrode
3.3 / 5
Design
StandardV-Cut
Ground typeCenter type
Specifications
0.7mm (.028")4
GapHeat range
⌀14mm1.25mm
Thread diameterThread pitch
9.5mm (3/8")21mm (13/16")
ReachHex size
GasketRemovable Nut
SeatTerminal
1Non-Projected
Ground countProjection

Cross-reference and alternatives

How we find alternative spark plugs How we rate spark plugs

Cross-reference (3)

Alternative spark plugs found in cross-reference docs provided by manufacturers
Iridium-Platinum
4.2/ 5
.031"9.5mm, ⌀14x1.25HR 9
Copper
3.3/ 5
.028"11mm, ⌀14x1.25HR 14
Copper
2.9/ 5
.031"9.5mm, ⌀14x1.25HR 7

Deep reference (19)

A second level of cross-reference: if A=B and B=C, then A=C
Iridium-Platinum
4.2/ 5
.031"9.5mm, ⌀14x1.25HR 9
Copper
3.3/ 5
.028"11mm, ⌀14x1.25HR 14
Copper
3.3/ 5
.028"9.5mm, ⌀14x1.25HR 14
Copper
3.3/ 5
.028"9.5mm, ⌀14x1.25HR 14
Copper
3.3/ 5
.028"11mm, ⌀14x1.25HR 14
Copper
3.2/ 5
.030"9.5mm, ⌀14x1.25HR 19
Copper
2.9/ 5
.026"9.5mm, ⌀14x1.25HR 17
Copper
2.9/ 5
.030"9.5mm, ⌀14x1.25HR 19
Copper
2.9/ 5
.030"9.5mm, ⌀14x1.25HR 19
Copper
2.9/ 5
.030"9.5mm, ⌀14x1.25HR 17
Copper
2.9/ 5
.028"9.5mm, ⌀14x1.25HR 2
Copper
2.9/ 5
.031"9.5mm, ⌀14x1.25HR 7
Copper
2.9/ 5
.026"9.5mm, ⌀14x1.25HR 17
Copper
2.9/ 5
.030"9.5mm, ⌀14x1.25HR 17
Copper
2.9/ 5
.028"9.5mm, ⌀14x1.25HR 4
Copper
2.9/ 5
.026"9.5mm, ⌀14x1.25HR 17
Copper
2.9/ 5
.030"9.5mm, ⌀14x1.25HR 17
Copper
2.9/ 5
.028"9.5mm, ⌀14x1.25HR 4
Copper
2.9/ 5
.028"9.5mm, ⌀14x1.25HR 4

Same specs (2)

Products that have identical characteristics that impact interchangability
Copper
2.9/ 5
.028"9.5mm, ⌀14x1.25HR 4
Copper
2.9/ 5
.028"9.5mm, ⌀14x1.25HR 4

Two steps colder (1)

Two steps colder spark plugs with same characteristics for heavily modified engines (150-200 hp increase)
Copper
2.9/ 5
.028"9.5mm, ⌀14x1.25HR 6