Autolite AR3911 Spark Plug

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Rating
Brand	Code
3.3 / 5 Overall
Autolite	AR3911
3.0 / 5 Materials
Copper	Copper
Ground electrode	Center electrode
3.8 / 5 Design
Cut Back	Standard
Ground type	Center type

Specifications
Gap	Heat range
0.6mm (.024")	4
⌀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

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

R5672A-8

Copper

3.1/ 5

.031"19mm, ⌀14x1.25HR 8

C61YC

Copper

2.9/ 5

.026"19mm, ⌀14x1.25HR 61

Deep reference (8)

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

IK24

Copper-Iridium

4.3/ 5

.031"19mm, ⌀14x1.25HR 24

IK27

Copper-Iridium

4.3/ 5

.031"19mm, ⌀14x1.25HR 27

C61Y

Copper

3.5/ 5

.030"19mm, ⌀14x1.25HR 61

C61HCX

Copper

3.3/ 5

.035"19mm, ⌀14x1.25HR 61

W24EP-U

Copper

3.3/ 5

.031"19mm, ⌀14x1.25HR 24

AR52

Copper

3.3/ 5

.024"19mm, ⌀14x1.25HR 4

R5672A-8

Copper

3.1/ 5

.031"19mm, ⌀14x1.25HR 8

C61YC

Copper

2.9/ 5

.026"19mm, ⌀14x1.25HR 61

Same specs (1)

Products that have identical characteristics that impact interchangability

AR3910

Copper

3.3/ 5

.024"19mm, ⌀14x1.25HR 3