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1956 GMC S300

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Autolite 303 Spark Plug
for 1956 GMC S300

Autolite 303 Spark Plug - 1956 GMC S300 Image 1
Autolite 303 Spark Plug - 1956 GMC S300 Image 2
Autolite 303 Spark Plug - 1956 GMC S300

Autolite
Brand:Autolite
Part Number: 303
UPC: 009100003034
Weight: 0.15 lbs
Condition:New



On Sale:

$4.07

Availability:
1 in Stock
Warehouse: US-7
Quantity:

Product Information

Description:

Get the Autolite 303 Spark Plug for your 1956 GMC S300. Buy now and secure your purchase online!

Autolite Copper spark plugs are engineered to deliver quick starts and the power your vehicle or applications needs to meet performance expectations.

Features and Benefits:

  • Designed with a nickel-plated shell that is corrosion resistant to provide increased durability for extended periods.
  • Its specially engineered high nickel alloy center and ground electrode provides extended life.
  • The copper core center electrode aids in thermal control and improves resistance to fouling.
  • The high alumina multi-rib ceramic insulator provides thermal conductivity and superior insulation for increased strength.

Specifications:

Center Electrode Core Material:
Copper
Center Electrode Insulator Tip Projection:
0.039 in.
Center Electrode Insulator Tip Projection:
0.99 mm
Center Electrode Projection:
Short Projection
Center Electrode Tip Material:
Nickel
Core Nose Length:
0.504 in.
Core Nose Length:
12.8 mm
Electrical Terminal Type:
Removable Nut
Grade Type:
Regular
Ground Electrode Core Material:
Nickel
Ground Electrode Quantity:
1
Ground Electrode Tip Design:
Standard
Ground Electrode Tip Material:
Nickel
Hex Size:
13/16 in.
Hex Type:
Hex
Indexed:
No
Insulator Height:
2.327 in.
Insulator Height:
59.11 mm
Insulator Material:
Ceramic
Manufacturer Heat Range:
8
Pre-Gap Size:
0.034 in.
Pre-Gap Size:
0.86 mm
Reach:
0.374 in.
Reach:
9.5 mm
Resistance:
5000 Ohm
Resistor Type:
Yes
Seat Type:
Flat
Skirt Length:
0.673 in.
Skirt Length:
17.09 mm
Skirt:
Yes
Thread Diameter:
14 mm
Washer Included:
Yes
Washer Type:
Flat
ACDelco #:
43
ACDelco #:
44
ACDelco #:
B4031
ACDelco #:
B43
ACDelco #:
B45
ACDelco #:
C43
ACDelco #:
C44
ACDelco #:
C45
ACDelco #:
CR43
ACDelco #:
CR43K
ACDelco #:
M44B
ACDelco #:
M44C
ACDelco #:
M45
ACDelco #:
MR44C
ACDelco #:
R43
ACDelco #:
R43C
ACDelco #:
S44
Accel #:
124
Bosch #:
W8EC
Caterpillar #:
9B-0444
Champion Spark Plug #:
102
Champion Spark Plug #:
823
Champion Spark Plug #:
8231
Champion Spark Plug #:
J6C
Champion Spark Plug #:
RJ6C
Chrysler #:
8129861
Chrysler #:
8129865
DENSO Auto Parts #:
3075
DENSO Auto Parts #:
W16S-U
DENSO Auto Parts #:
W20S-U
Ford #:
8U2J12405AYA
General Motors #:
5569992
General Motors #:
5612002
General Motors #:
5612567
General Motors #:
5612569
General Motors #:
5613865
Harley Davidson #:
HD5
Motorcraft #:
A3X
Motorcraft #:
A5
Motorcraft #:
A5X
Motorcraft #:
AR31
Motorcraft #:
AR41
Motorcraft #:
AR51
Motorcraft #:
AS4C
Motorcraft #:
AT3
Motorcraft #:
AT4
Motorcraft #:
AZ3
Motorcraft #:
SP476
NGK #:
742
NGK #:
B6S
NGK #:
B6Y
NGK #:
B7C
NGK #:
B7S
NGK #:
BR6S
Sears #:
STD361303
Splitfire #:
SF30C
Splitfire #:
SM30C
Stitt #:
407L
Country of Origin:
CN

Manufacturer Warranty:

2 Years

Autolite 303 Spark Plug compatibility with your 1956 GMC S300...

Last Updated: 10/05/2024

Years Vehicle Per Vehicle Fit NotesFitment Notes

1959

 

1958

 

1957

 

1956

 

1959

 

1958

 

1957

 

1956

 
GMC S300

4.4L L6 Gas OHV
6
 
Copper Resistor
OE Style
Gap .035 (in)
 

GMC S300



4.4L L6 Gas OHV Copper Resistor
OE Style
Gap .035 (in)

6 Per Vehicle

1956

 

1956

 
GMC S300

5.3L V8 Gas OHV
8
 
Copper Resistor
OE Style
Gap .035 (in)
 

GMC S300



5.3L V8 Gas OHV Copper Resistor
OE Style
Gap .035 (in)

8 Per Vehicle

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