Champion C63 Spark Plug

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Rating

3.5 / 5 Overall
Champion	C63
Brand	Code
3.0 / 5 Materials
Copper	Copper
Ground electrode	Center electrode
4.5 / 5 Design
Cut Back	Fine Wire
Ground type	Center type

Specifications

0.65mm (.026")	63
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

Same specs (1)

Products that have identical characteristics that impact interchangability

C61

Copper

-

3.5/ 5

.026"19mm, ⌀14x1.25HR 61

Bigger gap (5)

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

C61HCX

Copper

3.3/ 5

.035"19mm, ⌀14x1.25HR 61

C61HX

Copper

3.3/ 5

.030"19mm, ⌀14x1.25HR 61

C63HX

Copper

3.3/ 5

.030"19mm, ⌀14x1.25HR 63

C63CX

Copper

3.3/ 5

.035"19mm, ⌀14x1.25HR 63

C61CX

Copper

3.3/ 5

.035"19mm, ⌀14x1.25HR 61

One step colder (2)

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

C59

Copper

-

3.5/ 5

.026"19mm, ⌀14x1.25HR 59

QC59C

Copper

3.3/ 5

.026"19mm, ⌀14x1.25HR 59