NGK LZTR4AGP 5017 Spark Plug

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Rating

3.5 / 5 Overall
NGK	LZTR4AGP
Brand	Code
3.5 / 5 Materials
Copper	Platinum
Ground electrode	Center electrode
3.5 / 5 Design
Standard	Fine Wire
Ground type	Center type

Specifications

1mm (.039")	4
Gap	Heat range
⌀14mm	1.25mm
Thread diameter	Thread pitch
25mm (1")	16mm (5/8")
Reach	Hex size
Tapered	Solid
Seat	Terminal
1	Non-Projected
Ground count	Projection

Cross-reference and alternatives

Cross-reference (2)

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

RE14PMC

Copper-Platinum

3.3/ 5

.045"25mm, ⌀14x1.25HR 14

RE14PMC5

Copper-Platinum

3.3/ 5

.049"25mm, ⌀14x1.25HR 14

Deep reference (5)

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

LZTR5AGP

Copper-Platinum

-

3.5/ 5

.039"25mm, ⌀14x1.25HR 5

LZTR5AGP

Copper-Platinum

-

3.5/ 5

.039"25mm, ⌀14x1.25HR 5

AP5263

Copper-Platinum

3.2/ 5

.039"25mm, ⌀14x1.25HR 1

AP5263

Copper-Platinum

3.2/ 5

.039"25mm, ⌀14x1.25HR 1

LZTR5A-13

Copper

3.1/ 5

.050"25mm, ⌀14x1.25HR 5

Bigger gap (2)

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

LZTR4AIX-11

Copper-Iridium

3.8/ 5

.043"25mm, ⌀14x1.25HR 4

LZTR4A-11

Copper

3.1/ 5

.043"25mm, ⌀14x1.25HR 4

One step colder (1)

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

LZTR5AGP

Copper-Platinum

-

3.5/ 5

.039"25mm, ⌀14x1.25HR 5