NGK PLZTR4A-13 4997 Spark Plug

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Rating
Brand	Code
3.8 / 5 Overall
NGK	PLZTR4A-13
4.0 / 5 Materials
Platinum	Platinum
Ground electrode	Center electrode
3.5 / 5 Design
Standard	Fine Wire
Ground type	Center type

Specifications
Gap	Heat range
1.3mm (.050")	4
⌀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

How we find alternative spark plugs How we rate spark plugs

Cross-reference (2)

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

FR8KII332X

Iridium

4.5/ 5

.043"19mm, ⌀14x1.25HR 8

AP5263

Copper-Platinum

3.2/ 5

.039"25mm, ⌀14x1.25HR 1

Deep reference (12)

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

ZFR6FIX-11

Copper-Iridium

3.8/ 5

.043"19mm, ⌀14x1.25HR 6

PLZFR5B-13EG

Copper-Platinum

3.5/ 5

.050"26.5mm, ⌀14x1.25HR 5

LTR5GP

Copper-Platinum

3.5/ 5

.039"25mm, ⌀14x1.25HR 5

RE10PMC5

Copper-Platinum

3.3/ 5

.049"25mm, ⌀14x1.25HR 10

TE10PMC5

Copper-Platinum

3.3/ 5

.049"25mm, ⌀14x1.25HR 10

RE14PMC5

Copper-Platinum

3.3/ 5

.049"25mm, ⌀14x1.25HR 14

RE14PMC

Copper-Platinum

3.3/ 5

.045"25mm, ⌀14x1.25HR 14

RE10PM5

Copper-Platinum

3.3/ 5

.049"25mm, ⌀14x1.25HR 10

LZTR4A-11

Copper

3.1/ 5

.043"25mm, ⌀14x1.25HR 4

RE14MCC4

Copper

2.9/ 5

.039"25mm, ⌀14x1.25HR 14

RE14MCC5

Copper

2.9/ 5

.049"25mm, ⌀14x1.25HR 14

RE16MC

Copper

2.9/ 5

.041"25mm, ⌀14x1.25HR 16

One step colder (1)

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

PLZTR5A-13

Platinum

3.8/ 5

.050"25mm, ⌀14x1.25HR 5