NGK R6918B-8 Spark Plug

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Rating

3.8 / 5 Overall
NGK	R6918B-8
Brand	Code
3.5 / 5 Materials
Copper	Platinum
Ground electrode	Center electrode
4.5 / 5 Design
Slant	Fine Wire
Ground type	Center type

Specifications

0.6mm (.024")	8
Gap	Heat range
⌀14mm	1.25mm
Thread diameter	Thread pitch
19mm (3/4")	21mm (13/16")
Reach	Hex size
Gasket	Solid
Seat	Terminal
1	Non-Projected
Ground count	Projection

Cross-reference and alternatives

Cross-reference (1)

Alternative spark plugs found in cross-reference docs provided by manufacturers

4051

Copper

2.9/ 5

.024"19mm, ⌀14x1.25HR 1

Deep reference (13)

A second level of cross-reference: if A=B and B=C, then A=C

IW31

Copper-Iridium

4.3/ 5

.028"19mm, ⌀14x1.25HR 31

BR10HIX

Copper-Iridium

-

3.8/ 5

.031"12.7mm, ⌀14x1.25HR 10

BR10EIX

Copper-Iridium

-

3.8/ 5

.031"19mm, ⌀14x1.25HR 10

R7435-10

Copper-Iridium

-

3.8/ 5

.028"19mm, ⌀14x1.25HR 10

B10EGP

Copper-Platinum

3.7/ 5

.026"19mm, ⌀14x1.25HR 10

B95EGV

Copper-Gold-Palladium

3.4/ 5

.026"19mm, ⌀14x1.25HR 9

B10EGV

Copper-Gold-Palladium

3.4/ 5

.026"19mm, ⌀14x1.25HR 10

B10EG

Copper

3.2/ 5

.024"19mm, ⌀14x1.25HR 10

BR10EG

Copper

3.2/ 5

.024"19mm, ⌀14x1.25HR 10

BR10EYA

Copper

3.1/ 5

.031"19mm, ⌀14x1.25HR 10

BR10ECS

Copper

3.1/ 5

.031"19mm, ⌀14x1.25HR 10

B10ES

Copper

2.9/ 5

.020"19mm, ⌀14x1.25HR 10

BR10ES

Copper

2.9/ 5

.031"19mm, ⌀14x1.25HR 10

Same specs (2)

Products that have identical characteristics that impact interchangability

IW01-24

Iridium-Platinum

4.5/ 5

.024"19mm, ⌀14x1.25HR 24

R7376-8

Iridium-Platinum

4.5/ 5

.024"19mm, ⌀14x1.25HR 8

One step colder (5)

Colder spark plugs with same characteristics for moderately tuned engines (75–100 hp increase)

IW01-27

Iridium-Platinum

4.5/ 5

.024"19mm, ⌀14x1.25HR 27

R7376-9

Iridium-Platinum

4.5/ 5

.024"19mm, ⌀14x1.25HR 9

R6918B-9

Copper-Platinum

-

3.8/ 5

.024"19mm, ⌀14x1.25HR 9

R6918C-9

Copper-Platinum

-

3.8/ 5

.024"19mm, ⌀14x1.25HR 9

R6252E-9

Copper

3.3/ 5

.024"19mm, ⌀14x1.25HR 9

Two steps colder (3)

Two steps colder spark plugs with same characteristics for heavily modified engines (150-200 hp increase)

IW01-31

Iridium-Platinum

4.5/ 5

.024"19mm, ⌀14x1.25HR 31

IWM01-31

Iridium-Platinum

4.5/ 5

.024"19mm, ⌀14x1.25HR 31

R7376-10

Iridium-Platinum

4.5/ 5

.024"19mm, ⌀14x1.25HR 10