Autolite AR3931 Spark Plug

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Rating

3.3 / 5 Overall
Autolite	AR3931
Brand	Code
3.0 / 5 Materials
Copper	Copper
Ground electrode	Center electrode
3.8 / 5 Design
Cut Back	Standard
Ground type	Center type

Specifications

0.6mm (.024")	1
Gap	Heat range
⌀14mm	1.25mm
Thread diameter	Thread pitch
19mm (3/4")	16mm (5/8")
Reach	Hex size
Gasket	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

IK01-31

Iridium-Platinum

4.5/ 5

.028"19mm, ⌀14x1.25HR 31

IK02-31

Iridium-Platinum

4.3/ 5

.028"19mm, ⌀14x1.25HR 31

R5671A-11

Copper

3.1/ 5

.020"19mm, ⌀14x1.25HR 11

R5671A-10

Copper

3.1/ 5

.020"19mm, ⌀14x1.25HR 10

Deep reference (15)

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

R7434-10

Iridium-Platinum

4.5/ 5

.028"19mm, ⌀14x1.25HR 10

R7434-10

Iridium-Platinum

4.5/ 5

.028"19mm, ⌀14x1.25HR 10

IK34

Copper-Iridium

4.3/ 5

.031"19mm, ⌀14x1.25HR 34

IK31

Copper-Iridium

4.3/ 5

.031"19mm, ⌀14x1.25HR 31

C57

Copper

3.5/ 5

.026"19mm, ⌀14x1.25HR 57

C57

Copper

3.5/ 5

.026"19mm, ⌀14x1.25HR 57

C57A

Copper

-

3.3/ 5

.026"19mm, ⌀14x1.25HR 57

C53CX

Copper

-

3.3/ 5

.035"19mm, ⌀14x1.25HR 53

C55CX

Copper

-

3.3/ 5

.035"19mm, ⌀14x1.25HR 55

C57CX

Copper

-

3.3/ 5

.035"19mm, ⌀14x1.25HR 57

AR3932

Copper

-

3.3/ 5

.024"19mm, ⌀14x1.25HR 2

AR2592

Copper

-

3.3/ 5

.024"19mm, ⌀14x1.25HR 1

C55

Copper

3.2/ 5

.026"19mm, ⌀14x1.25HR 55

C53

Copper

2.9/ 5

.024"19mm, ⌀14x1.25HR 53

AR3932X

Copper

0.0/ 5

.031"19mm, ⌀14x1.25HR 2

Same specs (4)

Products that have identical characteristics that impact interchangability

AR3932

Copper

-

3.3/ 5

.024"19mm, ⌀14x1.25HR 2

AR3933

Copper

-

3.3/ 5

.024"19mm, ⌀14x1.25HR 3

AR3934

Copper

-

3.3/ 5

.024"19mm, ⌀14x1.25HR 4

AR3935

Copper

-

3.3/ 5

.024"19mm, ⌀14x1.25HR 5