Parts and equipment for motorcycles, quads, scooters and bicycles

NGK Spark Plug Codification

Discover in the table below the meaning of the letters and numbers for NGK spark plugs. Among other things, obtain information concerning the diameter and the length of the thread, the thermal degree, the configuration and the characteristics, the spacing of the electrodes ...

Below an example with the candle NGK CPR9EA-9, compatible with certain motorcycles 125 and maxiscooters.

C

PR

9

E

A

9

Thread diameter

A : 18mm

B : 14mm

C : 10mm

D : 12mm

E : 8mm

BC : 14mm

(Hexagonal section diameter 16mm)

Configuration and features

P : Insulated nozzle type

R : Built-in resistance type

U : Type of superficial or semi-superficial discharge

Thermal degree

Hot type

(slow engine)

degrees candle NGK

Cold type

(fast engine)

Thread length

E : 19mm

H : 12.7mm

Configuration and features

S : Standard type

Y : V-groove center electrode type

V : Central electrode type made of metals

VX : Type VX

K : 2 type ground electrodes

M : 2 type ground electrodes (rotary motor)

Q : 4 type ground electrodes (rotary motor)

B : Type for CVCC engine

J : Type with two oblique ground electrodes

A : Special type

C : Type with oblique mass electrodes

Electrode spacing

9 : 0.9mm

10 : 1mm

11 : 1.1mm

13 : 1.3mm

-L : Intermediate thermal degree

-N : Special dimension ground electrode


HERE 100% OF THE PARTS INDICATED IN STOCK REALLY ARE!