NGK UR45IX 7559 Spark Plug

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Rating

3.8 / 5 Overall
NGK	UR45IX
Brand	Code
4.0 / 5 Materials
Copper	Iridium
Ground electrode	Center electrode
3.5 / 5 Design
Standard	Fine Wire
Ground type	Center type

Specifications

1.5mm (.059")	4
Gap	Heat range
⌀14mm	1.25mm
Thread diameter	Thread pitch
11.6mm (.460")	16mm (5/8")
Reach	Hex size
Tapered	Solid
Seat	Terminal
1	Non-Projected
Ground count	Projection

Cross-reference and alternatives

Cross-reference (5)

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

XP26DP2

Iridium-Platinum

4.2/ 5

.045"11mm, ⌀14x1.25HR 5

XP666

Iridium-Platinum

4.2/ 5

.059"9.5mm, ⌀14x1.25HR 5

APP666

Platinum

3.5/ 5

.059"9.5mm, ⌀14x1.25HR 5

HR9BPY

Copper-Platinum

3.3/ 5

.059"11mm, ⌀14x1.25HR 9

HR9BPZ

Copper-Platinum

3.3/ 5

.079"11mm, ⌀14x1.25HR 9

Deep reference (8)

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

UR55IX

Copper-Iridium

-

3.8/ 5

.059"11.6mm, ⌀14x1.25HR 5

UR45GP

Copper-Platinum

3.5/ 5

.059"11.6mm, ⌀14x1.25HR 4

UR45GP

Copper-Platinum

3.5/ 5

.059"11.6mm, ⌀14x1.25HR 4

UR45GP

Copper-Platinum

3.5/ 5

.059"11.6mm, ⌀14x1.25HR 4

T16PR-U15

Copper

3.3/ 5

.059"11.6mm, ⌀14x1.25HR 16

T16PR-U15

Copper

3.3/ 5

.059"11.6mm, ⌀14x1.25HR 16

AP666

Copper-Platinum

3.2/ 5

.059"9.5mm, ⌀14x1.25HR 5

AP666

Copper-Platinum

3.2/ 5

.059"9.5mm, ⌀14x1.25HR 5

Same specs (2)

Products that have identical characteristics that impact interchangability

UR45GP

Copper-Platinum

3.5/ 5

.059"11.6mm, ⌀14x1.25HR 4

UR45

Copper

3.1/ 5

.059"11.6mm, ⌀14x1.25HR 4

One step colder (2)

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

UR55IX

Copper-Iridium

-

3.8/ 5

.059"11.6mm, ⌀14x1.25HR 5

UR55

Copper

3.1/ 5

.059"11.6mm, ⌀14x1.25HR 5