NGK CR9EK 4548 Spark Plug

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Rating

3.3 / 5 Overall
NGK	CR9EK
Brand	Code
3.0 / 5 Materials
Copper	Copper
Ground electrode	Center electrode
3.8 / 5 Design
Multi-Ground	Standard
Ground type	Center type

Specifications

0.7mm (.028")	9
Gap	Heat range
⌀10mm	1mm
Thread diameter	Thread pitch
19mm (3/4")	16mm (5/8")
Reach	Hex size
Gasket	Threaded Stud
Seat	Terminal
2	Non-Projected
Ground count	Projection

Cross-reference and alternatives

Cross-reference (4)

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

XS4302

Iridium-Platinum

4.2/ 5

.031"19mm, ⌀10x1HR 1

IU27A

Copper-Iridium

4.0/ 5

.035"19mm, ⌀10x1HR 27

U27ETR

Copper

-

3.3/ 5

.028"19mm, ⌀10x1HR 27

4302

Copper

2.9/ 5

.031"19mm, ⌀10x1HR 1

Deep reference (59)

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

IMR8C-9H

Iridium-Platinum

4.2/ 5

.035"19mm, ⌀10x1HR 8

IMR9C-9HES

Iridium-Platinum

4.2/ 5

.035"19mm, ⌀10x1HR 9

CR9EIA-9

Iridium-Platinum

4.2/ 5

.035"19mm, ⌀10x1HR 9

CR9EHI-9

Iridium-Platinum

4.2/ 5

.035"19mm, ⌀10x1HR 9

IMR9D-9H

Iridium-Platinum

4.2/ 5

.035"19mm, ⌀10x1HR 9

CR6EIA-9

Iridium-Platinum

4.2/ 5

.035"19mm, ⌀10x1HR 6

IMR9A-9H

Iridium-Platinum

4.2/ 5

.035"19mm, ⌀10x1HR 9

IMR9C-9H

Iridium-Platinum

4.2/ 5

.035"19mm, ⌀10x1HR 9

IMR9C-9HE

Iridium-Platinum

4.2/ 5

.035"19mm, ⌀10x1HR 9

XS4302

Iridium-Platinum

4.2/ 5

.031"19mm, ⌀10x1HR 1

XS4302

Iridium-Platinum

4.2/ 5

.031"19mm, ⌀10x1HR 1

IMR8C-9H

Iridium-Platinum

4.2/ 5

.035"19mm, ⌀10x1HR 8

IMR9C-9HES

Iridium-Platinum

4.2/ 5

.035"19mm, ⌀10x1HR 9

CR9EIA-9

Iridium-Platinum

4.2/ 5

.035"19mm, ⌀10x1HR 9

CR9EHI-9

Iridium-Platinum

4.2/ 5

.035"19mm, ⌀10x1HR 9

IMR9D-9H

Iridium-Platinum

4.2/ 5

.035"19mm, ⌀10x1HR 9

CR6EIA-9

Iridium-Platinum

4.2/ 5

.035"19mm, ⌀10x1HR 6

IMR9A-9H

Iridium-Platinum

4.2/ 5

.035"19mm, ⌀10x1HR 9

IMR9C-9H

Iridium-Platinum

4.2/ 5

.035"19mm, ⌀10x1HR 9

IMR9C-9HE

Iridium-Platinum

4.2/ 5

.035"19mm, ⌀10x1HR 9

IU27A

Copper-Iridium

4.0/ 5

.035"19mm, ⌀10x1HR 27

CR9EIX

Copper-Iridium

3.8/ 5

.031"19mm, ⌀10x1HR 9

CR9EHIX-9

Copper-Iridium

3.8/ 5

.035"19mm, ⌀10x1HR 9

PMR9B

Platinum

3.8/ 5

.028"19mm, ⌀10x1HR 9

CR8EIX

Copper-Iridium

3.8/ 5

.031"19mm, ⌀10x1HR 8

CR9EIX

Copper-Iridium

3.8/ 5

.031"19mm, ⌀10x1HR 9

CR9EHIX-9

Copper-Iridium

3.8/ 5

.035"19mm, ⌀10x1HR 9

PMR9B

Platinum

3.8/ 5

.028"19mm, ⌀10x1HR 9

CR9EKPA

Copper-Platinum

3.6/ 5

.031"19mm, ⌀10x1HR 9

CR9EKPA

Copper-Platinum

3.6/ 5

.031"19mm, ⌀10x1HR 9

CR9EKPA

Copper-Platinum

3.6/ 5

.031"19mm, ⌀10x1HR 9

C9EHVX-9

Copper-Platinum

3.5/ 5

.035"19mm, ⌀10x1HR 9

CR9EHVX-9

Copper-Platinum

3.5/ 5

.035"19mm, ⌀10x1HR 9

C9EHVX-9

Copper-Platinum

3.5/ 5

.035"19mm, ⌀10x1HR 9

CR9EHVX-9

Copper-Platinum

3.5/ 5

.035"19mm, ⌀10x1HR 9

U27ETR

Copper

-

3.3/ 5

.028"19mm, ⌀10x1HR 27

CR10EK

Copper

-

3.3/ 5

.028"19mm, ⌀10x1HR 10

CR9EKB

Copper

-

3.3/ 5

.031"19mm, ⌀10x1HR 9

CR9EKB

Copper

-

3.3/ 5

.031"19mm, ⌀10x1HR 9

U27ETR

Copper

-

3.3/ 5

.028"19mm, ⌀10x1HR 27

CR10EK

Copper

-

3.3/ 5

.028"19mm, ⌀10x1HR 10

CR9EKB

Copper

-

3.3/ 5

.031"19mm, ⌀10x1HR 9

G57C

Copper

2.9/ 5

.030"19mm, ⌀10x1HR 57

C9E

Copper

2.9/ 5

.031"19mm, ⌀10x1HR 9

CR10E

Copper

2.9/ 5

.031"19mm, ⌀10x1HR 10

CR6E

Copper

2.9/ 5

.031"19mm, ⌀10x1HR 6

CR9E

Copper

2.9/ 5

.031"19mm, ⌀10x1HR 9

CR9EB

Copper

2.9/ 5

.031"19mm, ⌀10x1HR 9

CR9EH-9

Copper

2.9/ 5

.035"19mm, ⌀10x1HR 9

4302

Copper

2.9/ 5

.031"19mm, ⌀10x1HR 1

G57C

Copper

2.9/ 5

.030"19mm, ⌀10x1HR 57

C9E

Copper

2.9/ 5

.031"19mm, ⌀10x1HR 9

CR10E

Copper

2.9/ 5

.031"19mm, ⌀10x1HR 10

CR6E

Copper

2.9/ 5

.031"19mm, ⌀10x1HR 6

CR9E

Copper

2.9/ 5

.031"19mm, ⌀10x1HR 9

CR9EB

Copper

2.9/ 5

.031"19mm, ⌀10x1HR 9

CR9EH-9

Copper

2.9/ 5

.035"19mm, ⌀10x1HR 9

CR8E

Copper

2.9/ 5

.031"19mm, ⌀10x1HR 8

R017-9

-Copper

0.0/ 5

.024"19mm, ⌀10x1HR 9

Same specs (1)

Products that have identical characteristics that impact interchangability

CR9EK BLYB

Copper

-

3.3/ 5

.028"19mm, ⌀10x1HR 9

Bigger gap (2)

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

CR9EKPA

Copper-Platinum

3.6/ 5

.031"19mm, ⌀10x1HR 9

CR9EKB

Copper

-

3.3/ 5

.031"19mm, ⌀10x1HR 9

One step colder (2)

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

U31ETR

Copper

-

3.3/ 5

.028"19mm, ⌀10x1HR 31

CR10EK

Copper

-

3.3/ 5

.028"19mm, ⌀10x1HR 10