Autolite 5243 Spark Plug

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Rating

2.9 / 5 Overall
Autolite	5243
Brand	Code
3.0 / 5 Materials
Copper	Copper
Ground electrode	Center electrode
2.8 / 5 Design
Standard	Standard
Ground type	Center type

Specifications

1.15mm (.045")	1
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 (1)

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

BPR6EFS

Copper

-

2.9/ 5

.031"18mm, ⌀14x1.25HR 6

Deep reference (11)

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

IT20

Copper-Iridium

4.3/ 5

.043"17.5mm, ⌀14x1.25HR 20

VT20

Iridium-Platinum

4.2/ 5

.043"17.5mm, ⌀14x1.25HR 20

242240519

Copper-Silver

3.3/ 5

.024"17.5mm, ⌀14x1.25HR 6

T20EPR-U

Copper

3.3/ 5

.031"18mm, ⌀14x1.25HR 20

AR103

Copper

3.3/ 5

.033"17.5mm, ⌀14x1.25HR 1

S9YC

Copper

3.3/ 5

.026"17.5mm, ⌀14x1.25HR 9

103

Copper

-

2.9/ 5

.050"17.5mm, ⌀14x1.25HR 1

104

Copper

-

2.9/ 5

.050"17.5mm, ⌀14x1.25HR 2

764

Copper

-

2.9/ 5

.045"17.5mm, ⌀14x1.25HR 2

RS9YC

Copper

-

2.9/ 5

.035"17.5mm, ⌀14x1.25HR 9

HR7DC+ 7918

Copper

-

2.9/ 5

.031"17.5mm, ⌀14x1.25HR 7

Same specs (13)

Products that have identical characteristics that impact interchangability

XP5243

Iridium-Platinum

4.2/ 5

.045"18mm, ⌀14x1.25HR 1

XP5243DP2

Iridium-Platinum

4.2/ 5

.045"18mm, ⌀14x1.25HR 1

XP5245

Iridium-Platinum

4.2/ 5

.045"18mm, ⌀14x1.25HR 3

XP5245DP2

Iridium-Platinum

4.2/ 5

.045"18mm, ⌀14x1.25HR 3

APP5243

Platinum

3.5/ 5

.045"18mm, ⌀14x1.25HR 1

APP5245

Platinum

3.5/ 5

.045"18mm, ⌀14x1.25HR 3

APP5245DP2

Platinum

3.5/ 5

.045"18mm, ⌀14x1.25HR 3

AP5243

Copper-Platinum

3.2/ 5

.045"18mm, ⌀14x1.25HR 1

AP5245

Copper-Platinum

3.2/ 5

.045"18mm, ⌀14x1.25HR 3

AP5245DP2

Copper-Platinum

3.2/ 5

.045"18mm, ⌀14x1.25HR 3

5245

Copper

-

2.9/ 5

.045"18mm, ⌀14x1.25HR 3

5245BP

Copper

-

2.9/ 5

.045"18mm, ⌀14x1.25HR 3

5245DP2

Copper

-

2.9/ 5

.045"18mm, ⌀14x1.25HR 3

Bigger gap (20)

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

XP5145DP2

Iridium-Platinum

4.2/ 5

.055"18mm, ⌀14x1.25HR 3

XP5145

Iridium-Platinum

4.2/ 5

.055"18mm, ⌀14x1.25HR 3

XP5144DP2

Iridium-Platinum

4.2/ 5

.055"18mm, ⌀14x1.25HR 2

XP5144

Iridium-Platinum

4.2/ 5

.055"18mm, ⌀14x1.25HR 2

XP5143

Iridium-Platinum

4.2/ 5

.055"18mm, ⌀14x1.25HR 1

APP5145

Platinum

3.5/ 5

.055"18mm, ⌀14x1.25HR 3

APP5144DP2

Platinum

3.5/ 5

.055"18mm, ⌀14x1.25HR 2

APP5144

Platinum

3.5/ 5

.055"18mm, ⌀14x1.25HR 2

APP5143

Platinum

3.5/ 5

.055"18mm, ⌀14x1.25HR 1

AP5145DP2

Copper-Platinum

3.2/ 5

.055"18mm, ⌀14x1.25HR 3

AP5145

Copper-Platinum

3.2/ 5

.055"18mm, ⌀14x1.25HR 3

AP5144DP2

Copper-Platinum

3.2/ 5

.055"18mm, ⌀14x1.25HR 2

AP5144

Copper-Platinum

3.2/ 5

.055"18mm, ⌀14x1.25HR 2

AP5143DP2

Copper-Platinum

3.2/ 5

.055"18mm, ⌀14x1.25HR 1

AP5143

Copper-Platinum

3.2/ 5

.055"18mm, ⌀14x1.25HR 1

5143

Copper

-

2.9/ 5

.055"18mm, ⌀14x1.25HR 1

5144DP2

Copper

-

2.9/ 5

.055"18mm, ⌀14x1.25HR 2

5144BP

Copper

-

2.9/ 5

.055"18mm, ⌀14x1.25HR 2

5144

Copper

-

2.9/ 5

.055"18mm, ⌀14x1.25HR 2

5143BP

Copper

-

2.9/ 5

.055"18mm, ⌀14x1.25HR 1