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Autolite 4275 Spark Plug
for 1973 (please select make/model) -L U/K

Autolite 4275 Spark Plug - 1973 Image 1
Autolite 4275 Spark Plug - 1973 Image 2
Autolite 4275 Spark Plug - 1973

Autolite
Brand:Autolite
Part Number: 4275
UPC: 009100255396
Weight: 0.15 lbs
Condition:New



Availability:
0 in Stock
 OUT OF STOCK

Product Information

Description:

SPARK PLUG

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:

  • 2 year limited warranty
  • 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 Design:
Standard
Center Electrode Projection:
Mid Projection
Center Electrode Tip Material:
Nickel
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 Material:
Ceramic
Manufacturer Heat Range:
8
Pre-Gap Size:
0.034 in.
Pre-Gap Size:
0.8636 mm
Reach:
0.374 in.
Reach:
9.4996 mm
Resistor Type:
No
Seat Type:
Flat
Skirt:
Yes
Thread Diameter:
14 mm
Washer Included:
Yes
ACDelco #:
M43S
Accel #:
137
Accel #:
437
Champion Spark Plug #:
10
Champion Spark Plug #:
J12YC
Champion Spark Plug #:
RJ12YC
DENSO Auto Parts #:
3036
DENSO Auto Parts #:
W16P-U
General Motors #:
5613482
NGK #:
2298
NGK #:
R5670-5
NGK #:
XR5
Country of Origin:
CN

Manufacturer Warranty:

2 Years

Select a vehicle to narrow Autolite 4275 Spark Plug fitment info!

Last Updated: 10/05/2024

Years Vehicle Per Vehicle Fit NotesFitment Notes

1974

 

1973

 

1972

 

1971

 

1970

 

1974

 

1973

 

1972

 

1971

 

1970

 
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1
 
Copper Non-Resistor
Shovel Head
Gap .025 (in)
 

Harley-Davidson FLH Electra Glide



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Shovel Head
Gap .025 (in)

1 Per Vehicle

1974

 

1973

 

1972

 

1971

 

1974

 

1973

 

1972

 

1971

 
Harley-Davidson FX Super Glide

-L U/K
1
 
Copper Non-Resistor
Shovel Head
Gap .025 (in)
 

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-L U/K Copper Non-Resistor
Shovel Head
Gap .025 (in)

1 Per Vehicle

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