NGK TR5AI-13 90813 Spark Plug

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Rating

4.2 / 5 Overall
NGK	TR5AI-13
Brand	Code
4.5 / 5 Materials
Platinum	Iridium
Ground electrode	Center electrode
3.5 / 5 Design
Standard	Fine Wire
Ground type	Center type

Specifications

1.3mm (.050")	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 (4)

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

HR7DII33V

Iridium

4.5/ 5

.050"17.5mm, ⌀14x1.25HR 7

HR6KII33X

Iridium

4.5/ 5

.043"17.5mm, ⌀14x1.25HR 6

HR7KII33V

Iridium

4.5/ 5

.050"17.5mm, ⌀14x1.25HR 7

VT16

Iridium-Platinum

-

4.2/ 5

.043"17.5mm, ⌀14x1.25HR 16

Deep reference (26)

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

TR65IX

Copper-Iridium

3.8/ 5

.059"18mm, ⌀14x1.25HR 6

TR6IX

Copper-Iridium

3.8/ 5

.039"18mm, ⌀14x1.25HR 6

TR65IX

Copper-Iridium

3.8/ 5

.059"18mm, ⌀14x1.25HR 6

TR4IX

Copper-Iridium

3.8/ 5

.039"18mm, ⌀14x1.25HR 4

RS12PYP

Platinum

3.7/ 5

.049"17.5mm, ⌀14x1.25HR 12

HGR9DQP

Copper-Platinum

3.5/ 5

.063"17.5mm, ⌀14x1.25HR 9

RS17YX

Copper

3.5/ 5

.024"17.5mm, ⌀14x1.25HR 17

HR8DPX

Copper-Platinum

3.3/ 5

.043"17.5mm, ⌀14x1.25HR 8

HR9DPX

Copper-Platinum

3.3/ 5

.043"17.5mm, ⌀14x1.25HR 9

RS14PMC4

Copper-Platinum

3.3/ 5

.039"17.5mm, ⌀14x1.25HR 14

TR4

Copper

3.1/ 5

.039"18mm, ⌀14x1.25HR 4

HR8LPX

Copper-Platinum

3.0/ 5

.043"17.5mm, ⌀14x1.25HR 8

HR9DPY

Copper-Platinum

3.0/ 5

.059"17.5mm, ⌀14x1.25HR 9

HR9LPX

Copper-Platinum

3.0/ 5

.043"17.5mm, ⌀14x1.25HR 9

H9DC

Copper

2.9/ 5

.031"17.5mm, ⌀14x1.5HR 9

HR10DCX

Copper

2.9/ 5

.043"17.5mm, ⌀14x1.25HR 10

HR8DCX

Copper

2.9/ 5

.043"17.5mm, ⌀14x1.25HR 8

106

Copper

2.9/ 5

.050"17.5mm, ⌀14x1.25HR 4

2545

Copper

2.9/ 5

.045"18mm, ⌀14x1.25HR 3

2546

Copper

2.9/ 5

.055"18mm, ⌀14x1.25HR 4

605

Copper

2.9/ 5

.059"17.5mm, ⌀14x1.25HR 3

765

Copper

2.9/ 5

.045"17.5mm, ⌀14x1.25HR 3

766

Copper

2.9/ 5

.045"17.5mm, ⌀14x1.25HR 4

RS14LC

Copper

2.9/ 5

.043"18mm, ⌀14x1.25HR 14

RS14YC

Copper

2.9/ 5

.045"17.5mm, ⌀14x1.25HR 14

RS15LYC

Copper

2.9/ 5

.039"17.5mm, ⌀14x1.25HR 15

Same specs (3)

Products that have identical characteristics that impact interchangability

PTR5C-13

Platinum

3.8/ 5

.050"18mm, ⌀14x1.25HR 5

PTR5D-13

Platinum

3.8/ 5

.050"18mm, ⌀14x1.25HR 5

BPR5EFS-13

Copper

2.9/ 5

.050"18mm, ⌀14x1.25HR 5

Bigger gap (4)

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

PTJ16R15

Platinum

3.8/ 5

.059"18mm, ⌀14x1.25HR 16

TR55-1IX

Copper-Iridium

3.8/ 5

.059"18mm, ⌀14x1.25HR 5

TR55-1GP

Copper-Platinum

3.5/ 5

.059"18mm, ⌀14x1.25HR 5

TR55-1

Copper

3.1/ 5

.059"18mm, ⌀14x1.25HR 5

One step colder (2)

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

PTR6D-13

Platinum

3.8/ 5

.050"18mm, ⌀14x1.25HR 6

TR6AP-13

Platinum

3.8/ 5

.050"18mm, ⌀14x1.25HR 6