Champion RC14YC4 Spark Plug

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Rating

2.9 / 5 Overall
Champion	RC14YC4
Brand	Code
3.0 / 5 Materials
Copper	Copper
Ground electrode	Center electrode
2.8 / 5 Design
Standard	Standard
Ground type	Center type

Specifications

1mm (.039")	14
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 (1)

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

3926

Copper

-

2.9/ 5

.035"19mm, ⌀14x1.25HR 5

Deep reference (14)

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

VK16

Iridium-Platinum

4.2/ 5

.043"19mm, ⌀14x1.25HR 16

FR5DTC

Copper

3.3/ 5

.031"19mm, ⌀14x1.25HR 5

K16PR-U11

Copper

3.3/ 5

.043"19mm, ⌀14x1.25HR 16

K16R-U11

Copper

3.3/ 5

.043"19mm, ⌀14x1.25HR 16

BKR4E-11

Copper

3.1/ 5

.043"19mm, ⌀14x1.25HR 4

BKR4E

Copper

3.1/ 5

.035"19mm, ⌀14x1.25HR 4

FR4

Copper

3.1/ 5

.039"19mm, ⌀14x1.25HR 4

BKR5E

Copper

3.1/ 5

.035"19mm, ⌀14x1.25HR 5

FR10DCX

Copper

-

2.9/ 5

.043"19mm, ⌀14x1.25HR 10

RC14YC

Copper

-

2.9/ 5

.039"19mm, ⌀14x1.25HR 14

XC92YC

Copper

-

2.9/ 5

.030"19mm, ⌀14x1.25HR 92

BCP4ES-11

Copper

-

2.9/ 5

.043"19mm, ⌀14x1.25HR 4

BKR4ESA-11

Copper

-

2.9/ 5

.043"19mm, ⌀14x1.25HR 4

BKR5ES-11

Copper

-

2.9/ 5

.043"19mm, ⌀14x1.25HR 5

Same specs (5)

Products that have identical characteristics that impact interchangability

431-1

Copper

-

2.9/ 5

.039"19mm, ⌀14x1.25HR 14

431C2

Copper

-

2.9/ 5

.039"19mm, ⌀14x1.25HR 14

431CC

Copper

-

2.9/ 5

.039"19mm, ⌀14x1.25HR 14

431S

Copper

-

2.9/ 5

.039"19mm, ⌀14x1.25HR 14

RC14YC

Copper

-

2.9/ 5

.039"19mm, ⌀14x1.25HR 14

Bigger gap (2)

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

FR9LCX

Copper

-

2.9/ 5

.043"19mm, ⌀14x1.25HR 9

FR9LCX+

Copper

-

2.9/ 5

.043"19mm, ⌀14x1.25HR 9

One step colder (4)

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

FR8DPP33+

Platinum

3.8/ 5

.039"19mm, ⌀14x1.25HR 8

RC11PYPB4

Platinum

3.8/ 5

.039"19mm, ⌀14x1.25HR 11

ZFR5BGP

Copper-Platinum

3.5/ 5

.039"19mm, ⌀14x1.25HR 5

RC11ZYC4

Copper

-

2.9/ 5

.039"19mm, ⌀14x1.25HR 11

Two steps colder (12)

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

RC10WYPB4

Iridium-Platinum

4.2/ 5

.039"19mm, ⌀14x1.25HR 10

FR6DPP22U

Platinum

3.8/ 5

.039"19mm, ⌀14x1.25HR 6

FR7DPP22U

Platinum

3.8/ 5

.039"19mm, ⌀14x1.25HR 7

RC10PYPB4

Platinum

3.8/ 5

.039"19mm, ⌀14x1.25HR 10

RC10PYP4

Platinum

3.7/ 5

.039"19mm, ⌀14x1.25HR 10

346C2

Copper

-

2.9/ 5

.039"19mm, ⌀14x1.25HR 10

RC10YC4

Copper

-

2.9/ 5

.039"19mm, ⌀14x1.25HR 10

418CC

Copper

-

2.9/ 5

.039"19mm, ⌀14x1.25HR 9

430C2

Copper

-

2.9/ 5

.039"19mm, ⌀14x1.25HR 9

RC9YCN4

Copper

-

2.9/ 5

.039"19mm, ⌀14x1.25HR 9

RC9YC4

Copper

-

2.9/ 5

.039"19mm, ⌀14x1.25HR 9

RC10YCC4

Copper

-

2.9/ 5

.039"19mm, ⌀14x1.25HR 10