🔥 Ignitie

Bosch FR8DCX+ NS 7557 Spark Plug

HomeSpark PlugsBosch → FR8DCX+ NS
Bosch FR8DCX+ NS 7557 image
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Rating
2.9 / 5
Overall
BoschFR8DCX+ NS
BrandCode
3.0 / 5
Materials
CopperCopper
Ground electrodeCenter electrode
2.8 / 5
Design
StandardStandard
Ground typeCenter type
Specifications
1.1mm (.043")8
GapHeat range
⌀14mm1.25mm
Thread diameterThread pitch
19mm (3/4")16mm (5/8")
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 (1)

Alternative spark plugs found in cross-reference docs provided by manufacturers
Copper
3.1/ 5
.039"19mm, ⌀14x1.25HR 4

Deep reference (5)

A second level of cross-reference: if A=B and B=C, then A=C
Iridium-Platinum
4.2/ 5
.043"19mm, ⌀14x1.25HR 16
Copper
3.3/ 5
.031"19mm, ⌀14x1.25HR 16
Copper
3.3/ 5
.031"19mm, ⌀14x1.25HR 16
Copper
-
2.9/ 5
.039"19mm, ⌀14x1.25HR 14
Copper
-
2.9/ 5
.035"19mm, ⌀14x1.25HR 5

Same specs (5)

Products that have identical characteristics that impact interchangability
Copper-Iridium
3.8/ 5
.043"19mm, ⌀14x1.25HR 5
Copper-Platinum
3.3/ 5
.043"19mm, ⌀14x1.25HR 8
Copper-Platinum
3.3/ 5
.043"19mm, ⌀14x1.25HR 8
Copper-Platinum
3.3/ 5
.043"19mm, ⌀14x1.25HR 8
Copper-Platinum
3.3/ 5
.043"19mm, ⌀14x1.25HR 8

Bigger gap (3)

0.1..0.3 mm gap increase for better performance given your ignition system can handle it
Copper
-
2.9/ 5
.049"19mm, ⌀14x1.25HR 12
Copper
-
2.9/ 5
.049"19mm, ⌀14x1.25HR 12
Copper
-
2.9/ 5
.049"19mm, ⌀14x1.25HR 12

One step colder (4)

Colder spark plugs with same characteristics for moderately tuned engines (75–100 hp increase)
Copper-Platinum
3.5/ 5
.043"19mm, ⌀14x1.25HR 7
Copper-Platinum
3.3/ 5
.043"19mm, ⌀14x1.25HR 7
Copper
-
2.9/ 5
.043"19mm, ⌀14x1.25HR 6
Copper
-
2.9/ 5
.043"19mm, ⌀14x1.25HR 7