Autolite XP646DP2 Spark Plug

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Rating

4.2 / 5 Overall
Autolite	XP646DP2
Brand	Code
4.5 / 5 Materials
Platinum	Iridium-Platinum
Ground electrode	Center electrode
3.5 / 5 Design
Standard	Fine Wire
Ground type	Center type

Specifications

1.3mm (.050")	12
Gap	Heat range
⌀14mm	1.25mm
Thread diameter	Thread pitch
19mm (3/4")	21mm (13/16")
Reach	Hex size
Gasket	Solid
Seat	Terminal
1	Non-Projected
Ground count	Projection

Cross-reference and alternatives

Cross-reference (1)

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

BPR5EIX-11

Copper-Iridium

3.8/ 5

.043"19mm, ⌀14x1.25HR 5

Deep reference (7)

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

XP646

Iridium-Platinum

-

4.2/ 5

.050"19mm, ⌀14x1.25HR 12

RN10WYPB5

Iridium-Platinum

-

4.2/ 5

.049"19mm, ⌀14x1.25HR 10

XS985

Iridium-Platinum

-

4.2/ 5

.035"19mm, ⌀14x1.25HR 4

RN14PMC3

Copper-Platinum

3.3/ 5

.030"19mm, ⌀14x1.25HR 14

W16ETR-S

Copper

3.3/ 5

.039"19mm, ⌀14x1.25HR 16

WR8DPX

Copper-Platinum

3.3/ 5

.043"19mm, ⌀14x1.25HR 8

WR9DPX

Copper-Platinum

3.3/ 5

.043"19mm, ⌀14x1.25HR 9

Same specs (7)

Products that have identical characteristics that impact interchangability

XP646

Iridium-Platinum

-

4.2/ 5

.050"19mm, ⌀14x1.25HR 12

APP646

Platinum

3.5/ 5

.050"19mm, ⌀14x1.25HR 12

AP646

Copper-Platinum

3.2/ 5

.050"19mm, ⌀14x1.25HR 12

AP646DP2

Copper-Platinum

3.2/ 5

.050"19mm, ⌀14x1.25HR 12

646

Copper

2.9/ 5

.050"19mm, ⌀14x1.25HR 12

646BP

Copper

2.9/ 5

.050"19mm, ⌀14x1.25HR 12

646DP2

Copper

2.9/ 5

.050"19mm, ⌀14x1.25HR 12

Two steps colder (1)

Two steps colder spark plugs with same characteristics for heavily modified engines (150-200 hp increase)

WR10LCV

Copper

2.9/ 5

.050"19mm, ⌀14x1.25HR 10