Champion RC12WMPB4 9202 Spark Plug

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Rating

4.2 / 5 Overall
Champion	RC12WMPB4
Brand	Code
4.5 / 5 Materials
Platinum	Iridium
Ground electrode	Center electrode
3.5 / 5 Design
Standard	Fine Wire
Ground type	Center type

Specifications

1mm (.039")	12
Gap	Heat range
⌀14mm	1.25mm
Thread diameter	Thread pitch
19mm (3/4")	16mm (5/8")
Reach	Hex size
Gasket	Removable Nut
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

XP5224

Iridium-Platinum

-

4.2/ 5

.045"19mm, ⌀14x1.25HR 3

Deep reference (23)

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

SKJ20DR-M11

Iridium-Platinum

4.3/ 5

.043"19mm, ⌀14x1.25HR 20

SK22PR-M11S

Iridium-Platinum

4.3/ 5

.043"19mm, ⌀14x1.25HR 22

SKJ16DR-M11

Iridium-Platinum

4.3/ 5

.043"19mm, ⌀14x1.25HR 16

SKJ20DR-M11S

Iridium-Platinum

4.3/ 5

.043"19mm, ⌀14x1.25HR 20

SKJ20DR-M13

Iridium-Platinum

4.3/ 5

.050"19mm, ⌀14x1.25HR 20

RC12WLPB4

Iridium-Platinum

-

4.2/ 5

.039"19mm, ⌀14x1.25HR 12

SKJ16CR-L11

Iridium-Platinum

-

4.2/ 5

.043"19mm, ⌀14x1.25HR 16

IZFR5K11

Iridium-Platinum

-

4.2/ 5

.043"19mm, ⌀14x1.25HR 5

IZFR6F-11

Iridium-Platinum

-

4.2/ 5

.043"19mm, ⌀14x1.25HR 6

IZFR6N-E

Iridium-Platinum

-

4.2/ 5

.031"19mm, ⌀14x1.25HR 6

IFR7L-11

Iridium-Platinum

-

4.2/ 5

.043"19mm, ⌀14x1.25HR 7

IZFR5G

Iridium-Platinum

-

4.2/ 5

.031"19mm, ⌀14x1.25HR 5

IZFR5J

Iridium-Platinum

-

4.2/ 5

.031"19mm, ⌀14x1.25HR 5

IZFR6K-11

Iridium-Platinum

-

4.2/ 5

.043"19mm, ⌀14x1.25HR 6

IFR7G-11KS

Iridium-Platinum

-

4.2/ 5

.043"19mm, ⌀14x1.25HR 7

IZFR6H-11

Iridium-Platinum

-

4.2/ 5

.043"19mm, ⌀14x1.25HR 6

IZFR6K-11S

Iridium-Platinum

-

4.2/ 5

.043"19mm, ⌀14x1.25HR 6

IZFR6K-13

Iridium-Platinum

-

4.2/ 5

.050"19mm, ⌀14x1.25HR 6

242235776

Platinum

3.8/ 5

.039"19mm, ⌀14x1.25HR 7

ZFR5FIX-11

Copper-Iridium

3.8/ 5

.043"19mm, ⌀14x1.25HR 5

PZFR5Q-11

Platinum

3.8/ 5

.043"19mm, ⌀14x1.25HR 5

PZFR5J-11

Platinum

3.8/ 5

.043"19mm, ⌀14x1.25HR 5

ZFR6FIX-11

Copper-Iridium

3.8/ 5

.043"19mm, ⌀14x1.25HR 6

Same specs (11)

Products that have identical characteristics that impact interchangability

RC12WLPB4

Iridium-Platinum

-

4.2/ 5

.039"19mm, ⌀14x1.25HR 12

7318-2

Platinum

3.8/ 5

.039"19mm, ⌀14x1.25HR 12

RC12PMPB4

Platinum

3.8/ 5

.039"19mm, ⌀14x1.25HR 12

RC12PLC4

Copper-Platinum

3.3/ 5

.039"19mm, ⌀14x1.25HR 12

RC12PMC4

Copper-Platinum

3.3/ 5

.039"19mm, ⌀14x1.25HR 12

318CC

Copper

2.9/ 5

.039"19mm, ⌀14x1.25HR 12

318C2

Copper

2.9/ 5

.039"19mm, ⌀14x1.25HR 12

RC12MC-4

Copper

2.9/ 5

.039"19mm, ⌀14x1.25HR 12

RC12MCC4

Copper

2.9/ 5

.039"19mm, ⌀14x1.25HR 12

439C2

Copper

2.9/ 5

.039"19mm, ⌀14x1.25HR 12

QC12GMC MARINE

Copper

2.9/ 5

.039"19mm, ⌀14x1.25HR 12

Bigger gap (4)

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

RC12WEPB

Iridium-Platinum

-

4.2/ 5

.045"19mm, ⌀14x1.25HR 12

7034-2

Platinum

3.8/ 5

.049"19mm, ⌀14x1.25HR 12

RC12PEPB5

Platinum

3.8/ 5

.049"19mm, ⌀14x1.25HR 12

RC12PEC5

Copper-Platinum

3.3/ 5

.049"19mm, ⌀14x1.25HR 12

One step colder (9)

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

RC10WMPB4

Iridium-Platinum

-

4.2/ 5

.039"19mm, ⌀14x1.25HR 10

RC10PLPB4

Platinum

3.8/ 5

.039"19mm, ⌀14x1.25HR 10

434C2

Copper

2.9/ 5

.039"19mm, ⌀14x1.25HR 9

436C2

Copper

2.9/ 5

.039"19mm, ⌀14x1.25HR 9

436CC

Copper

2.9/ 5

.039"19mm, ⌀14x1.25HR 9

436S

Copper

2.9/ 5

.039"19mm, ⌀14x1.25HR 9

QC9MC4

Copper

2.9/ 5

.039"19mm, ⌀14x1.25HR 9

RC9MC4

Copper

2.9/ 5

.039"19mm, ⌀14x1.25HR 9

RC12LC4

Copper

2.9/ 5

.039"19mm, ⌀14x1.25HR 9

Two steps colder (3)

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

RC8WMPB4 PS

Iridium-Platinum

-

4.2/ 5

.039"19mm, ⌀14x1.25HR 8

9803S

Iridium-Platinum

-

4.2/ 5

.039"19mm, ⌀14x1.25HR 8

RC8WMPB4

Iridium-Platinum

-

4.2/ 5

.039"19mm, ⌀14x1.25HR 8