Champion RCJ4 Spark Plug

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Rating

2.9 / 5 Overall
Champion	RCJ4
Brand	Code
3.0 / 5 Materials
Copper	Copper
Ground electrode	Center electrode
2.8 / 5 Design
Standard	Standard
Ground type	Center type

Specifications

0.65mm (.026")	4
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 (4)

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

XST254

Iridium-Platinum

4.2/ 5

.024"9.5mm, ⌀14x1.25HR 3

W22M-U

Copper

3.3/ 5

.028"9.5mm, ⌀14x1.25HR 22

254

Copper

-

2.9/ 5

.024"9.5mm, ⌀14x1.25HR 3

BMR7A

Copper

-

2.9/ 5

.028"9.5mm, ⌀14x1.25HR 7

Deep reference (22)

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

XST254

Iridium-Platinum

4.2/ 5

.024"9.5mm, ⌀14x1.25HR 3

XST255

Iridium-Platinum

4.2/ 5

.030"9.5mm, ⌀14x1.25HR 6

W22M-U

Copper

3.3/ 5

.028"9.5mm, ⌀14x1.25HR 22

W22M-U

Copper

3.3/ 5

.028"9.5mm, ⌀14x1.25HR 22

W22M-U

Copper

3.3/ 5

.028"9.5mm, ⌀14x1.25HR 22

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

BM7A

Copper

-

2.9/ 5

.028"9.5mm, ⌀14x1.25HR 7

BM7A

Copper

-

2.9/ 5

.028"9.5mm, ⌀14x1.25HR 7

BMR7A

Copper

-

2.9/ 5

.028"9.5mm, ⌀14x1.25HR 7

254

Copper

-

2.9/ 5

.024"9.5mm, ⌀14x1.25HR 3

CJ4

Copper

-

2.9/ 5

.026"9.5mm, ⌀14x1.25HR 4

CJ6

Copper

-

2.9/ 5

.024"9.5mm, ⌀14x1.25HR 6

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

BM7A

Copper

-

2.9/ 5

.028"9.5mm, ⌀14x1.25HR 7

BM6A

Copper

-

2.9/ 5

.028"9.5mm, ⌀14x1.25HR 6

255

Copper

-

2.9/ 5

.030"9.5mm, ⌀14x1.25HR 6

Same specs (2)

Products that have identical characteristics that impact interchangability

862C

Copper

-

2.9/ 5

.026"9.5mm, ⌀14x1.25HR 4

CJ4

Copper

-

2.9/ 5

.026"9.5mm, ⌀14x1.25HR 4