NGK AB-6 Spark Plug

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Rating

2.9 / 5 Overall
NGK	AB-6
Brand	Code
3.0 / 5 Materials
Copper	Copper
Ground electrode	Center electrode
2.8 / 5 Design
Standard	Standard
Ground type	Center type

Specifications

0.7mm (.028")	6
Gap	Heat range
⌀18mm	1.5mm
Thread diameter	Thread pitch
11mm (7/16")	21mm (13/16")
Reach	Hex size
Gasket	Removable Nut
Seat	Terminal
1	Non-Projected
Ground count	Projection

Cross-reference and alternatives

Cross-reference (13)

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

D16J

Copper

3.1/ 5

.030"12.7mm, ⌀18x1.5HR 16

386

Copper

-

2.9/ 5

.024"12.7mm, ⌀18x1.5HR 4

3116

Copper

-

2.9/ 5

.035"12.7mm, ⌀18x1.5HR 5

D21

Copper

-

2.9/ 5

.028"12.7mm, ⌀18x1.5HR 21

D23

Copper

-

2.9/ 5

.030"12.7mm, ⌀18x1.5HR 23

M17

Copper

-

2.9/ 5

.028"12mm, ⌀18x1.5HR 17

UD16

Copper

2.8/ 5

.026"12.7mm, ⌀18x1.5HR 16

D16

Copper

2.8/ 5

.026"12.7mm, ⌀18x1.5HR 16

D9

Copper

2.8/ 5

.026"12.7mm, ⌀18x1.5HR 9

RD16

Copper

2.8/ 5

.026"12.7mm, ⌀18x1.5HR 16

D-14

Copper

2.8/ 5

.026"12.7mm, ⌀18x1.5HR 14

D18Y

Copper

2.8/ 5

.028"12.7mm, ⌀18x1.5HR 18

D78Y

Copper

2.8/ 5

.016"12.7mm, ⌀18x1.5HR 78

Deep reference (31)

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

L14-U

Copper

3.3/ 5

.028"12mm, ⌀18x1.5HR 14

L14-U

Copper

3.3/ 5

.028"12mm, ⌀18x1.5HR 14

L14-U

Copper

3.3/ 5

.028"12mm, ⌀18x1.5HR 14

L14-U

Copper

3.3/ 5

.028"12mm, ⌀18x1.5HR 14

L14-U

Copper

3.3/ 5

.028"12mm, ⌀18x1.5HR 14

L14-U

Copper

3.3/ 5

.028"12mm, ⌀18x1.5HR 14

L14-U

Copper

3.3/ 5

.028"12mm, ⌀18x1.5HR 14

L14-U

Copper

3.3/ 5

.028"12mm, ⌀18x1.5HR 14

L14-U

Copper

3.3/ 5

.028"12mm, ⌀18x1.5HR 14

D16J

Copper

3.1/ 5

.030"12.7mm, ⌀18x1.5HR 16

386

Copper

-

2.9/ 5

.024"12.7mm, ⌀18x1.5HR 4

D21

Copper

-

2.9/ 5

.028"12.7mm, ⌀18x1.5HR 21

M14

Copper

-

2.9/ 5

.028"12mm, ⌀18x1.5HR 14

386

Copper

-

2.9/ 5

.024"12.7mm, ⌀18x1.5HR 4

388

Copper

-

2.9/ 5

.024"12.7mm, ⌀18x1.5HR 6

386

Copper

-

2.9/ 5

.024"12.7mm, ⌀18x1.5HR 4

386

Copper

-

2.9/ 5

.024"12.7mm, ⌀18x1.5HR 4

M22

Copper

-

2.9/ 5

.028"12mm, ⌀18x1.5HR 22

373

Copper

-

2.9/ 5

.024"12.7mm, ⌀18x1.5HR 1

386

Copper

-

2.9/ 5

.024"12.7mm, ⌀18x1.5HR 4

AB-7

Copper

-

2.9/ 5

.028"11mm, ⌀18x1.5HR 7

386

Copper

-

2.9/ 5

.024"12.7mm, ⌀18x1.5HR 4

3116

Copper

-

2.9/ 5

.035"12.7mm, ⌀18x1.5HR 5

D-14

Copper

2.8/ 5

.026"12.7mm, ⌀18x1.5HR 14

RD16

Copper

2.8/ 5

.026"12.7mm, ⌀18x1.5HR 16

UD16

Copper

2.8/ 5

.026"12.7mm, ⌀18x1.5HR 16

D16

Copper

2.8/ 5

.026"12.7mm, ⌀18x1.5HR 16

D18Y

Copper

2.8/ 5

.028"12.7mm, ⌀18x1.5HR 18

RD18Y

Copper

2.8/ 5

.035"12.7mm, ⌀18x1.5HR 18

D15Y

Copper

2.8/ 5

.028"12.7mm, ⌀18x1.5HR 15

RD15Y

Copper

2.8/ 5

.026"12.7mm, ⌀18x1.5HR 15

One step colder (1)

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

AB-7

Copper

-

2.9/ 5

.028"11mm, ⌀18x1.5HR 7

Two steps colder (1)

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

AB-8

Copper

-

2.9/ 5

.028"11mm, ⌀18x1.5HR 8