NGK BM6A Spark Plug

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Rating

2.9 / 5 Overall
NGK	BM6A
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
⌀14mm	1.25mm
Thread diameter	Thread pitch
9.5mm (3/8")	19mm (3/4")
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

XST255

Iridium-Platinum

4.2/ 5

.030"9.5mm, ⌀14x1.25HR 6

843EZ

Copper-Iridium

3.8/ 5

.024"9.5mm, ⌀14x1.25HR 8

W20M-U

Copper

3.3/ 5

.028"9.5mm, ⌀14x1.25HR 20

5846

Copper

3.2/ 5

.024"9.5mm, ⌀14x1.25HR 14

SE254DPT

Copper

3.2/ 5

.024"9.5mm, ⌀14x1.25HR 3

254

Copper

-

2.9/ 5

.024"9.5mm, ⌀14x1.25HR 3

255

Copper

-

2.9/ 5

.030"9.5mm, ⌀14x1.25HR 6

WS7E

Copper

-

2.9/ 5

.020"9.5mm, ⌀14x1.25HR 7

843-1

Copper

-

2.9/ 5

.030"9.5mm, ⌀14x1.25HR 8

CJ8

Copper

-

2.9/ 5

.030"9.5mm, ⌀14x1.25HR 8

254DP

Copper

-

2.9/ 5

.024"9.5mm, ⌀14x1.25HR 3

WS7E OSN

Copper

-

2.9/ 5

.020"9.5mm, ⌀14x1.25HR 7

WS8E SE

Copper

-

2.9/ 5

.020"9.5mm, ⌀14x1.25HR 8

Deep reference (43)

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

XST255

Iridium-Platinum

4.2/ 5

.030"9.5mm, ⌀14x1.25HR 6

XST258

Iridium-Platinum

4.2/ 5

.024"9.5mm, ⌀14x1.25HR 9

XST254

Iridium-Platinum

4.2/ 5

.024"9.5mm, ⌀14x1.25HR 3

XST255

Iridium-Platinum

4.2/ 5

.030"9.5mm, ⌀14x1.25HR 6

XST254

Iridium-Platinum

4.2/ 5

.024"9.5mm, ⌀14x1.25HR 3

XST255

Iridium-Platinum

4.2/ 5

.030"9.5mm, ⌀14x1.25HR 6

W14MR-U

Copper

3.3/ 5

.028"9.5mm, ⌀14x1.25HR 14

W20MR-U

Copper

3.3/ 5

.028"9.5mm, ⌀14x1.25HR 20

W20M-U

Copper

3.3/ 5

.028"9.5mm, ⌀14x1.25HR 20

W22M-U

Copper

3.3/ 5

.028"9.5mm, ⌀14x1.25HR 22

W14MR-U

Copper

3.3/ 5

.028"9.5mm, ⌀14x1.25HR 14

W20MR-U

Copper

3.3/ 5

.028"9.5mm, ⌀14x1.25HR 20

W20M-U

Copper

3.3/ 5

.028"9.5mm, ⌀14x1.25HR 20

W20M-U

Copper

3.3/ 5

.028"9.5mm, ⌀14x1.25HR 20

W20M-U

Copper

3.3/ 5

.028"9.5mm, ⌀14x1.25HR 20

WS8E SE

Copper

-

2.9/ 5

.020"9.5mm, ⌀14x1.25HR 8

WS9EC

Copper

-

2.9/ 5

.024"9.5mm, ⌀14x1.25HR 9

CJ8

Copper

-

2.9/ 5

.030"9.5mm, ⌀14x1.25HR 8

RCJ8

Copper

-

2.9/ 5

.030"9.5mm, ⌀14x1.25HR 8

BMR6A

Copper

-

2.9/ 5

.028"9.5mm, ⌀14x1.25HR 6

BMR7A

Copper

-

2.9/ 5

.028"9.5mm, ⌀14x1.25HR 7

WS7E

Copper

-

2.9/ 5

.020"9.5mm, ⌀14x1.25HR 7

255

Copper

-

2.9/ 5

.030"9.5mm, ⌀14x1.25HR 6

CJ8

Copper

-

2.9/ 5

.030"9.5mm, ⌀14x1.25HR 8

BMR6A

Copper

-

2.9/ 5

.028"9.5mm, ⌀14x1.25HR 6

258

Copper

-

2.9/ 5

.024"9.5mm, ⌀14x1.25HR 9

WS7E OSN

Copper

-

2.9/ 5

.020"9.5mm, ⌀14x1.25HR 7

WS7E

Copper

-

2.9/ 5

.020"9.5mm, ⌀14x1.25HR 7

CJ4

Copper

-

2.9/ 5

.026"9.5mm, ⌀14x1.25HR 4

CJ6

Copper

-

2.9/ 5

.024"9.5mm, ⌀14x1.25HR 6

RCJ4

Copper

-

2.9/ 5

.026"9.5mm, ⌀14x1.25HR 4

BM7A

Copper

-

2.9/ 5

.028"9.5mm, ⌀14x1.25HR 7

WS8E SE

Copper

-

2.9/ 5

.020"9.5mm, ⌀14x1.25HR 8

WS9EC

Copper

-

2.9/ 5

.024"9.5mm, ⌀14x1.25HR 9

CJ8

Copper

-

2.9/ 5

.030"9.5mm, ⌀14x1.25HR 8

RCJ8

Copper

-

2.9/ 5

.030"9.5mm, ⌀14x1.25HR 8

BMR6A

Copper

-

2.9/ 5

.028"9.5mm, ⌀14x1.25HR 6

BMR7A

Copper

-

2.9/ 5

.028"9.5mm, ⌀14x1.25HR 7

B-4

Copper

-

2.9/ 5

.028"9.5mm, ⌀14x1.25HR 4

254

Copper

-

2.9/ 5

.024"9.5mm, ⌀14x1.25HR 3

255

Copper

-

2.9/ 5

.030"9.5mm, ⌀14x1.25HR 6

254

Copper

-

2.9/ 5

.024"9.5mm, ⌀14x1.25HR 3

255

Copper

-

2.9/ 5

.030"9.5mm, ⌀14x1.25HR 6

Same specs (1)

Products that have identical characteristics that impact interchangability

BM6A SOLID

Copper

-

2.9/ 5

.028"9.5mm, ⌀14x1.25HR 6

One step colder (1)

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

BM7A

Copper

-

2.9/ 5

.028"9.5mm, ⌀14x1.25HR 7