Champion RC12ECC Spark Plug

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Rating

2.9 / 5 Overall
Champion	RC12ECC
Brand	Code
3.0 / 5 Materials
Copper	Copper
Ground electrode	Center electrode
2.8 / 5 Design
Standard	Standard
Ground type	Center type

Specifications

0.9mm (.035")	12
Gap	Heat range
⌀14mm	1.25mm
Thread diameter	Thread pitch
19mm (3/4")	16mm (5/8")
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

VK16

Iridium-Platinum

4.2/ 5

.043"19mm, ⌀14x1.25HR 16

ZFR5N

Copper

3.1/ 5

.035"19mm, ⌀14x1.25HR 5

985

Copper

-

2.9/ 5

.035"19mm, ⌀14x1.25HR 4

KJ16CR-L11

Copper

2.8/ 5

.043"19mm, ⌀14x1.25HR 16

Deep reference (73)

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

FR8VII33U

Iridium

4.5/ 5

.039"19mm, ⌀14x1.25HR 8

IT20

Copper-Iridium

4.3/ 5

.043"17.5mm, ⌀14x1.25HR 20

IFR5D10

Iridium-Platinum

4.2/ 5

.039"19mm, ⌀14x1.25HR 5

IFR5J11

Iridium-Platinum

4.2/ 5

.043"19mm, ⌀14x1.25HR 5

FR5EI

Iridium-Platinum

4.2/ 5

.031"19mm, ⌀14x1.25HR 5

IFR5G11

Iridium-Platinum

4.2/ 5

.043"19mm, ⌀14x1.25HR 5

IZFR5K11

Iridium-Platinum

4.2/ 5

.043"19mm, ⌀14x1.25HR 5

IZFR5L11

Iridium-Platinum

4.2/ 5

.043"19mm, ⌀14x1.25HR 5

VT20

Iridium-Platinum

4.2/ 5

.043"17.5mm, ⌀14x1.25HR 20

BKR4EIX

Copper-Iridium

3.8/ 5

.031"19mm, ⌀14x1.25HR 4

PFR5J11

Platinum

3.8/ 5

.043"19mm, ⌀14x1.25HR 5

PZFR5F

Platinum

3.8/ 5

.031"19mm, ⌀14x1.25HR 5

ZFR5AP

Platinum

3.8/ 5

.031"19mm, ⌀14x1.25HR 5

KC10PYPB4

Platinum

3.8/ 5

.039"19mm, ⌀14x1.25HR 10

RC10PYPB4

Platinum

3.8/ 5

.039"19mm, ⌀14x1.25HR 10

RC11PYPB4

Platinum

3.8/ 5

.039"19mm, ⌀14x1.25HR 11

RC10PYP4

Platinum

3.7/ 5

.039"19mm, ⌀14x1.25HR 10

FGR8DQP

Copper-Platinum

3.5/ 5

.063"19mm, ⌀14x1.25HR 8

FGR8LQP0

Copper-Platinum

3.5/ 5

.063"19mm, ⌀14x1.25HR 8

ZFR5FGP

Copper-Platinum

3.5/ 5

.039"19mm, ⌀14x1.25HR 5

RC10PYC

Copper-Platinum

3.5/ 5

.045"19mm, ⌀14x1.25HR 10

APP985

Platinum

3.5/ 5

.035"19mm, ⌀14x1.25HR 4

FR8DPX

Copper-Platinum

3.3/ 5

.043"19mm, ⌀14x1.25HR 8

242229598

Copper-Silver

3.3/ 5

.028"19mm, ⌀14x1.25HR 8

FR8LPX

Copper-Platinum

3.3/ 5

.043"19mm, ⌀14x1.25HR 8

RC12PEC5

Copper-Platinum

3.3/ 5

.049"19mm, ⌀14x1.25HR 12

RC10PEC

Copper-Platinum

3.3/ 5

.035"19mm, ⌀14x1.25HR 10

J16BR-U

Copper

3.3/ 5

.031"19mm, ⌀14x1.25HR 16

J16HR-U10

Copper

3.3/ 5

.039"20.6mm, ⌀14x1.25HR 16

QJ16HR-U

Copper

3.3/ 5

.035"19mm, ⌀14x1.25HR 16

T20EPR-U

Copper

3.3/ 5

.031"18mm, ⌀14x1.25HR 20

242225596

Copper

3.2/ 5

.039"19mm, ⌀14x1.25HR 9

AP985

Copper-Platinum

3.2/ 5

.035"19mm, ⌀14x1.25HR 4

BKR5E

Copper

3.1/ 5

.035"19mm, ⌀14x1.25HR 5

BKR5EY

Copper

3.1/ 5

.035"19mm, ⌀14x1.25HR 5

BKR5EYA

Copper

3.1/ 5

.031"19mm, ⌀14x1.25HR 5

FR4

Copper

3.1/ 5

.039"19mm, ⌀14x1.25HR 4

FR45

Copper

3.1/ 5

.059"19mm, ⌀14x1.25HR 4

ZFR5F

Copper

3.1/ 5

.031"19mm, ⌀14x1.25HR 5

ZGR5C

Copper

3.1/ 5

.035"19mm, ⌀14x1.25HR 5

ZFR5N

Copper

3.1/ 5

.035"19mm, ⌀14x1.25HR 5

ZFR4F-11

Copper

3.1/ 5

.043"19mm, ⌀14x1.25HR 4

ZFR5F-11

Copper

3.1/ 5

.043"19mm, ⌀14x1.25HR 5

ZFR5J-11

Copper

3.1/ 5

.043"19mm, ⌀14x1.25HR 5

241229713

Copper

-

2.9/ 5

.031"19mm, ⌀14x1.25HR 8

FR10DCX

Copper

-

2.9/ 5

.043"19mm, ⌀14x1.25HR 10

FR8DCY

Copper

-

2.9/ 5

.059"19mm, ⌀14x1.25HR 8

FR8LCX

Copper

-

2.9/ 5

.043"19mm, ⌀14x1.25HR 8

BKR5ES-11

Copper

-

2.9/ 5

.043"19mm, ⌀14x1.25HR 5

BKR5ESA-11

Copper

-

2.9/ 5

.043"19mm, ⌀14x1.25HR 5

3926

Copper

-

2.9/ 5

.035"19mm, ⌀14x1.25HR 5

5184

Copper

-

2.9/ 5

.059"19mm, ⌀14x1.25HR 3

RC10MCC

Copper

-

2.9/ 5

.033"19mm, ⌀14x1.25HR 10

RC10YC

Copper

-

2.9/ 5

.030"19mm, ⌀14x1.25HR 10

RC10YC4

Copper

-

2.9/ 5

.039"19mm, ⌀14x1.25HR 10

RC10YCC4

Copper

-

2.9/ 5

.039"19mm, ⌀14x1.25HR 10

RC12MCC4

Copper

-

2.9/ 5

.039"19mm, ⌀14x1.25HR 12

RC12YC5

Copper

-

2.9/ 5

.049"19mm, ⌀14x1.25HR 12

XC92YC

Copper

-

2.9/ 5

.030"19mm, ⌀14x1.25HR 92

RC12LYC

Copper

-

2.9/ 5

.035"19mm, ⌀14x1.25HR 12

FR9HC

Copper

-

2.9/ 5

.035"19mm, ⌀14x1.25HR 9

FR9HC+

Copper

-

2.9/ 5

.035"19mm, ⌀14x1.25HR 9

985

Copper

-

2.9/ 5

.035"19mm, ⌀14x1.25HR 4

FR9HC

Copper

-

2.9/ 5

.035"19mm, ⌀14x1.25HR 9

FR9HC+

Copper

-

2.9/ 5

.035"19mm, ⌀14x1.25HR 9

RC12LYC

Copper

-

2.9/ 5

.035"19mm, ⌀14x1.25HR 12

RFN14LY

Copper

-

2.9/ 5

.035"19mm, ⌀14x1.25HR 14

RN13LYC

Copper

-

2.9/ 5

.035"19mm, ⌀14x1.25HR 13

RC10MCC

Copper

-

2.9/ 5

.033"19mm, ⌀14x1.25HR 10

RC12LC4

Copper

-

2.9/ 5

.039"19mm, ⌀14x1.25HR 9

RC12LYC

Copper

-

2.9/ 5

.035"19mm, ⌀14x1.25HR 12

RC12MCC4

Copper

-

2.9/ 5

.039"19mm, ⌀14x1.25HR 12

5224

Copper

-

2.9/ 5

.045"19mm, ⌀14x1.25HR 3

Same specs (4)

Products that have identical characteristics that impact interchangability

412CC

Copper

-

2.9/ 5

.035"19mm, ⌀14x1.25HR 12

412C2

Copper

-

2.9/ 5

.035"19mm, ⌀14x1.25HR 12

438C2

Copper

-

2.9/ 5

.035"19mm, ⌀14x1.25HR 12

RC12LYC

Copper

-

2.9/ 5

.035"19mm, ⌀14x1.25HR 12

Bigger gap (13)

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

RC12WLPB4

Iridium-Platinum

4.2/ 5

.039"19mm, ⌀14x1.25HR 12

RC12WMPB4

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

One step colder (3)

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

RC10PEC

Copper-Platinum

3.3/ 5

.035"19mm, ⌀14x1.25HR 10

RC10ECC

Copper

-

2.9/ 5

.035"19mm, ⌀14x1.25HR 10

RC9MCC

Copper

-

2.9/ 5

.035"19mm, ⌀14x1.25HR 9