NGK TR55-1GP 7159 Spark Plug

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Rating

3.5 / 5 Overall
NGK	TR55-1GP
Brand	Code
3.5 / 5 Materials
Copper	Platinum
Ground electrode	Center electrode
3.5 / 5 Design
Standard	Fine Wire
Ground type	Center type

Specifications

1.5mm (.059")	5
Gap	Heat range
⌀14mm	1.25mm
Thread diameter	Thread pitch
18mm (.709")	16mm (5/8")
Reach	Hex size
Tapered	Solid
Seat	Terminal
1	Non-Projected
Ground count	Projection

Cross-reference and alternatives

Cross-reference (7)

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

APP5143

Platinum

-

3.5/ 5

.055"18mm, ⌀14x1.25HR 1

APP5144

Platinum

-

3.5/ 5

.055"18mm, ⌀14x1.25HR 2

HR8JPP302V

Copper-Platinum

-

3.5/ 5

.050"17.5mm, ⌀14x1.25HR 8

AP5143

Copper-Platinum

3.2/ 5

.055"18mm, ⌀14x1.25HR 1

AP5144

Copper-Platinum

3.2/ 5

.055"18mm, ⌀14x1.25HR 2

AP5145

Copper-Platinum

3.2/ 5

.055"18mm, ⌀14x1.25HR 3

AP605

Copper-Platinum

3.2/ 5

.059"17.5mm, ⌀14x1.25HR 3

Deep reference (20)

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

IT20

Copper-Iridium

4.3/ 5

.043"17.5mm, ⌀14x1.25HR 20

IT20

Copper-Iridium

4.3/ 5

.043"17.5mm, ⌀14x1.25HR 20

VT20

Iridium-Platinum

4.2/ 5

.043"17.5mm, ⌀14x1.25HR 20

VT20

Iridium-Platinum

4.2/ 5

.043"17.5mm, ⌀14x1.25HR 20

RS14PLP

Platinum

3.8/ 5

.053"18mm, ⌀14x1.25HR 14

PTJ16R15

Platinum

3.8/ 5

.059"18mm, ⌀14x1.25HR 16

TR5-1IX

Copper-Iridium

3.8/ 5

.039"18mm, ⌀14x1.25HR 5

TR5-1IX

Copper-Iridium

3.8/ 5

.039"18mm, ⌀14x1.25HR 5

TR5-1GP

Copper-Platinum

-

3.5/ 5

.039"18mm, ⌀14x1.25HR 5

TR5-1GP

Copper-Platinum

-

3.5/ 5

.039"18mm, ⌀14x1.25HR 5

TR5-1GP

Copper-Platinum

-

3.5/ 5

.039"18mm, ⌀14x1.25HR 5

TR5-1GP

Copper-Platinum

-

3.5/ 5

.039"18mm, ⌀14x1.25HR 5

TR55-1VX

Copper-Platinum

-

3.5/ 5

.059"18mm, ⌀14x1.25HR 5

TR55VX

Copper-Platinum

-

3.5/ 5

.059"18mm, ⌀14x1.25HR 5

HR9DPX+

Copper-Platinum

3.3/ 5

.043"19mm, ⌀14x1.25HR 9

HR9DPY+

Copper-Platinum

3.3/ 5

.059"19mm, ⌀14x1.25HR 9

HR9DPX

Copper-Platinum

3.3/ 5

.043"17.5mm, ⌀14x1.25HR 9

HR9LPX

Copper-Platinum

3.0/ 5

.043"17.5mm, ⌀14x1.25HR 9

HR9LPX

Copper-Platinum

3.0/ 5

.043"17.5mm, ⌀14x1.25HR 9

HR9DPY

Copper-Platinum

3.0/ 5

.059"17.5mm, ⌀14x1.25HR 9

Same specs (3)

Products that have identical characteristics that impact interchangability

PTJ16R15

Platinum

3.8/ 5

.059"18mm, ⌀14x1.25HR 16

TR55-1IX

Copper-Iridium

3.8/ 5

.059"18mm, ⌀14x1.25HR 5

TR55-1

Copper

3.1/ 5

.059"18mm, ⌀14x1.25HR 5

One step colder (1)

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

TR65IX

Copper-Iridium

3.8/ 5

.059"18mm, ⌀14x1.25HR 6