Autolite XST258 XST258DP Spark Plug

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Rating

4.2 / 5 Overall
Autolite	XST258
Brand	Code
4.5 / 5 Materials
Platinum	Iridium-Platinum
Ground electrode	Center electrode
3.5 / 5 Design
Standard	Fine Wire
Ground type	Center type

Specifications

0.6mm (.024")	9
Gap	Heat range
⌀14mm	1.25mm
Thread diameter	Thread pitch
9.5mm (3/8")	19mm (3/4")
Reach	Hex size
Gasket	Solid
Seat	Terminal
1	Non-Projected
Ground count	Projection

Cross-reference and alternatives

Cross-reference (9)

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

W14M-U

Copper

3.3/ 5

.028"9.5mm, ⌀14x1.25HR 14

5846

Copper

3.2/ 5

.024"9.5mm, ⌀14x1.25HR 14

BM4Y

Copper

3.1/ 5

.028"9.5mm, ⌀14x1.25HR 4

CJ14

Copper

2.9/ 5

.030"9.5mm, ⌀14x1.25HR 14

RJ12C

Copper

2.9/ 5

.030"9.5mm, ⌀14x1.25HR 12

BM4A

Copper

2.9/ 5

.028"9.5mm, ⌀14x1.25HR 4

BMR2A

Copper

2.9/ 5

.028"9.5mm, ⌀14x1.25HR 2

BMR2A-10

Copper

2.9/ 5

.039"9.5mm, ⌀14x1.25HR 2

BMR4A

Copper

2.9/ 5

.028"9.5mm, ⌀14x1.25HR 4

Deep reference (27)

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

846EZ

Copper-Iridium

3.8/ 5

.024"9.5mm, ⌀14x1.25HR 14

W14M-U

Copper

3.3/ 5

.028"9.5mm, ⌀14x1.25HR 14

W14M-U

Copper

3.3/ 5

.028"9.5mm, ⌀14x1.25HR 14

W14MU10

Copper

3.3/ 5

.039"8.5mm, ⌀14x1.25HR 14

W14MR-U

Copper

3.3/ 5

.028"9.5mm, ⌀14x1.25HR 14

SE258DPT

Copper

3.2/ 5

.024"9.5mm, ⌀14x1.25HR 9

W9LMR-US

Copper

3.1/ 5

.028"11mm, ⌀14x1.25HR 9

W9LMR-US

Copper

3.1/ 5

.028"11mm, ⌀14x1.25HR 9

WS9EC

Copper

2.9/ 5

.024"9.5mm, ⌀14x1.25HR 9

BM4A

Copper

2.9/ 5

.028"9.5mm, ⌀14x1.25HR 4

258

Copper

2.9/ 5

.024"9.5mm, ⌀14x1.25HR 9

CJ14

Copper

2.9/ 5

.030"9.5mm, ⌀14x1.25HR 14

258

Copper

2.9/ 5

.024"9.5mm, ⌀14x1.25HR 9

BM6A

Copper

2.9/ 5

.028"9.5mm, ⌀14x1.25HR 6

258

Copper

2.9/ 5

.024"9.5mm, ⌀14x1.25HR 9

258

Copper

2.9/ 5

.024"9.5mm, ⌀14x1.25HR 9

BM4A

Copper

2.9/ 5

.028"9.5mm, ⌀14x1.25HR 4

258

Copper

2.9/ 5

.024"9.5mm, ⌀14x1.25HR 9

308

Copper

2.9/ 5

.035"9.5mm, ⌀14x1.25HR 9

BR6S

Copper

2.9/ 5

.028"9.5mm, ⌀14x1.25HR 6

258

Copper

2.9/ 5

.024"9.5mm, ⌀14x1.25HR 9

846-1

Copper

2.9/ 5

.030"9.5mm, ⌀14x1.25HR 14

CJ14

Copper

2.9/ 5

.030"9.5mm, ⌀14x1.25HR 14

258

Copper

2.9/ 5

.024"9.5mm, ⌀14x1.25HR 9

258

Copper

2.9/ 5

.024"9.5mm, ⌀14x1.25HR 9

258

Copper

2.9/ 5

.024"9.5mm, ⌀14x1.25HR 9

WS9EC

Copper

2.9/ 5

.024"9.5mm, ⌀14x1.25HR 9

Same specs (8)

Products that have identical characteristics that impact interchangability

XST254

Iridium-Platinum

-

4.2/ 5

.024"9.5mm, ⌀14x1.25HR 3

SE254DPT

Copper

3.2/ 5

.024"9.5mm, ⌀14x1.25HR 3

SE258

Copper

3.2/ 5

.024"9.5mm, ⌀14x1.25HR 9

SE258DPT

Copper

3.2/ 5

.024"9.5mm, ⌀14x1.25HR 9

254

Copper

2.9/ 5

.024"9.5mm, ⌀14x1.25HR 3

254DP

Copper

2.9/ 5

.024"9.5mm, ⌀14x1.25HR 3

258

Copper

2.9/ 5

.024"9.5mm, ⌀14x1.25HR 9

258DP

Copper

2.9/ 5

.024"9.5mm, ⌀14x1.25HR 9

Bigger gap (5)

0.1..0.3 mm gap increase for better performance given your ignition system can handle it

XST255

Iridium-Platinum

-

4.2/ 5

.030"9.5mm, ⌀14x1.25HR 6

SE255DPT

Copper

3.2/ 5

.030"9.5mm, ⌀14x1.25HR 6

255

Copper

2.9/ 5

.030"9.5mm, ⌀14x1.25HR 6

255BP

Copper

2.9/ 5

.030"9.5mm, ⌀14x1.25HR 6

255DP

Copper

2.9/ 5

.030"9.5mm, ⌀14x1.25HR 6