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Bosch FR8HDC+ Spark Plug

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Rating
3.3 / 5
Overall
BoschFR8HDC+
BrandCode
3.0 / 5
Materials
CopperCopper
Ground electrodeCenter electrode
3.8 / 5
Design
Multi-GroundStandard
Ground typeCenter type
Specifications
1mm (.039")8
GapHeat range
⌀14mm1.25mm
Thread diameterThread pitch
19mm (3/4")16mm (5/8")
ReachHex size
GasketRemovable Nut
SeatTerminal
2Non-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
-
3.3/ 5
.043"19mm, ⌀14x1.25HR 5

Deep reference (2)

A second level of cross-reference: if A=B and B=C, then A=C
Copper
-
3.3/ 5
.043"19mm, ⌀14x1.25HR 16
Copper
2.9/ 5
.045"19mm, ⌀14x1.25HR 3

One step colder (2)

Colder spark plugs with same characteristics for moderately tuned engines (75–100 hp increase)
Copper
-
3.3/ 5
.039"19mm, ⌀14x1.25HR 7
Copper
-
3.3/ 5
.039"19mm, ⌀14x1.25HR 6