Share on (1600906282137):








Heat Ramge | CNR | BOSCH | NGK | CHAMPION | DENSO |
1 | 1 | 10 | 2 | 18/19 | 9 |
2 | 2 | 9 | 4 | 14/16 | 14 |
3 | 3 | 8 | 5 | 11/12 | 16 |
4 | 4 | 6/7 | 6 | 9/10 | 20 |
5 | 5 | 5 | 7 | 7/8 | 22 |
6 | 6 | 4 | 8 | 6/61/63 | 24 |
7 | 7 | 3 | 9 | 4/59 | 27 |
9.5 | 57 | 29 | |||
8 | 8 | 2 | 10 | 55 | 31 |
10.5 | 53 | 32 | |||
9 | 9 | 11 | 34 | ||
11.5 | 35 | ||||
10 | 10 | 12 | 37 |
Letter | Thread Diameter | Reach | Insulator Type | Seat Type |
F | 14mm (Hex 15.8mm) | 19.0mm | Projected | Flat Seat |
Fa | 14mm (Hex 15.8mm) | 22.0mm | Projected | Flat Seat |
Fb | 14mm | 19.0mm | Projected | Flat Seat |
Fc | 14mm | 9.5mm | Projected | Flat Seat |
T | 14mm (Hex 15.8mm) | 18.0mm | Projected | Taper Seat |
Ta | 14mm (Hex 15.8mm) | 20.5mm | Projected | Taper Seat |
Tb | 14mm | 11.7mm | Projected | Taper Seat |
Tc | 14mm | 11.7mm | Non-Projected | Taper Seat |
Td | 18mm | 11.7mm | Projected | Taper Seat |
Construction | ||
M | Compact Type | |
P | Projected Insulator Type | |
R | Resistor TypeR | |
U | Surface or Semi-SurfaceU Discharge Type | |
Z | Inductive Resistor | |
Thread Reach (Flat Seat) | ||
A | 8.5mm | |
B | 9.5mm | |
C | 11.2mm | |
D | 12.0mm | |
E | 12.7mm | |
H | 19.0mm | |
K | 22.5mm | |
HE | Part Threaded Total reach=19.0mm Thread=12.7mm | |
Thread Reach (Taper Seat) | ||
T | H---T 7.8mm | |
K---HT 17.5mm | ||
HP---T 7.8mm | ||
K---T 11.2mm | ||
M---T 10.9mm | ||
Threaded Diameter | Hex | ||
A | 8mm | 13.0mm | |
B | 10mm | 16.0mm | |
C | 12mm | 16.0mm | |
D | 12mm | 18.0mm | |
E | 14mm | 16.0mm | |
F | 14mm | 16.0mm | |
H | 14mm | 19.0mm | |
K | 14mm | 20.8mm | |
L | 18mm | 20.8mm | |
M | 18mm | 25.4mm | |
G | PF 1/2 | 23.8mm | |
E type is made by ISO standard, it's 2.5mm shorter than F type | |||
Taper Seat Types | ||
Serial NO. | Hex | |
H---T | 16.0mm | |
H---HT | 16.0mm | |
K---T | 16.0mm | |
M---T | 20.8mm | |
Spark Gap | ||
6 | 0.6mm | |
7 | 0.7mm | |
8 | 0.8mm | |
9 | 0.9mm | |
10 | 1.0mm | |
11 | 1.1mm | |
13 | 1.3mm | |
14 | 1.4mm | |
15 | 1.5mm | |
20 | 2.0mm | |
No umber=Standard gap | ||
Firing End Construction | ||||||
A: | 2-ground electrode | H: | Booster gap | |||
B: | 3-ground electrode | I: | HHigh performance iridium | |||
C: | 4-ground electrode | P: | High performance platinum | |||
CH: | Compact type low angle ground electrode | PP: | Platinum on ground electrode | |||
D: | V-groove center electrode(14mm only), D:1.5mm out of insulator | Q: | Semi-surface discharge | |||
E: | V-groove center electrode(14mm only), 2.5mm out of insulator | S: | Standard Φ2.5mm center electrode | |||
F: | Special ground electrode | T: | Tapered seat (no gasket) | |||
G: | Nickel alloy center electrode | U: | Thick Φ2.9mm center electrode | |||
GG:V | Copper core ground electrode | W: | Tungsten electrode | |||

CNR | BOSCH | NGK | DENSO | CHAMPION |
JCPR5H | Y5DDC | DCPR7E | XU22EPR-U | RA8HC |
JCPR5Ha-9 | DCPR7EA-9 | XU22PR9 | ||
JEBR5a | ZKR7AP-Q | |||
JEER3a-11 | ZFR5LP-13G | |||
JEER3f | F8LCR | ZFR5F | KJ16CR8 | C9MCC |
JEER3f-11 | FR8HP | ZFR5F-11 | KJ16CR-L11 | RC12MC5 |
JEER3p | F7HER2 | ZFR5P-G | KJ20DR-M11 | |
JEER41-11 | F7LCOR2 | ZFR6F-11 | KJ20CR-L11 | RC10ECC |
JEER4i | ZFR6P-G | |||
JEER4k-11 | ZFR6K-11 | 9807B-5615P | ||
JER3H | F8DCOR | BKR5E | K16PR-U | |
JER3H-11 | BKR5E-11 | K14P-U11 | OE152/t10 | |
JER3HA | FLR8LDCU | BKR5EK | OE019/r04 | |
JER3HAFb-11 | FR8KDC | BKR5EKB-11 | K16TR11 | |
JER3HAFPb-11 | BKR5EKPB-11 | PK16TR11 | ||
JER3HE | BKR5EY | |||
JER3HEa | BKR5EYA | K16R-U | ||
JER3HEa-11 | FR8KCU | BKR5EYA-11 | K16R-U11 | |
JER3HIp | BKR5EIX-P | |||
JER3HP-11 | PGR8DQP | BKR5EP-11 | PK16R11 | |
JER3HS | FR8DC/FR8DCO | BKR5ES | OE013/T10 | |
JER3HS-11 | FR8DCX/FR8DPX | BKR5ES-11 | ||
JER3HU | BKR5EZ | OE093/110 | ||
JER3i | FR5Ei | |||
JER4H | F6DCOR | BKR6E | K20PR-U | OE002/r04/t10 |
JER4H-11 | BKR6E-11 | K20PR-U11 | ||
JER4HA | FR6LDC | BKR6EKC | OE030/t10/RC8BYC | |
JER4HAU | FGR7DQEO | BKR6EKUB | ||
JER4HCUP | F04DAR | BKR6EQUP | OE026/r04/t10 | |
JER4HEa | FR7KC | BKR6EYA | K20R-U | |
JER4HEa-11 | FGR7DQP | BKR6EYA-11 | K20R-U11 | |
JER4HE-11 | BKR6EY-11 | K20R-U11 | ||
JER4HP | F6DSR | BKR6EVX | ||
JER4HP-11 | FGR7DQP | BKR6EP-11 | PK20R11 | |
JER4HS | BKR6ES | OE034/t10 | ||
JER4HU | FR6KDC | BKR6EZ | OE033/t10/RC87YCL | |
JEUR3HB-10 | F8KTCR | BKUR5ET-10 | K16PBR-S10 | RC89PYC |
JEUR4HAQ | BKR6EKUB | |||
JEUR4HB-10 | F7KTCR | BBKUR6ET-10 | K20PBR-S10 |









New products from manufacturers at wholesale prices