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1978 GMC C15

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Autolite 685 Spark Plug
for 1978 GMC C15 5.7L V8 Gas OHV

Autolite 685 Spark Plug - 1978 GMC C15 Image 1
Autolite 685 Spark Plug - 1978 GMC C15 Image 2
Autolite 685 Spark Plug - 1978 GMC C15

Autolite
Brand:Autolite
Part Number: 685
UPC: 009100006851
Weight: 0.11 lbs
Condition:New



On Sale:

$3.24

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

Product Information

Description:

Get the Autolite 685 Spark Plug for your 1978 GMC C15. 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:
0.041 in.
Center Electrode Insulator Tip Projection:
1.04 mm
Center Electrode Projection:
Short Projection
Center Electrode Tip Material:
Nickel
Electrical Terminal Type:
Non-Removable Nut
Grade Type:
Regular
Ground Electrode Quantity:
1
Ground Electrode Tip Design:
Standard
Ground Electrode Tip Material:
Nickel
Hex Size:
5/8 in.
Hex Type:
Hex
Indexed:
No
Insulator Height:
2.274 in.
Insulator Height:
57.76 mm
Insulator Material:
Ceramic
Manufacturer Heat Range:
8
Pre-Gap Size:
0.06 in.
Pre-Gap Size:
1.52 mm
Reach:
0.431 in.
Reach:
10.95 mm
Resistance:
5000 Ohm
Resistor Type:
Yes
Seat Type:
Tapered
Thread Diameter:
14 mm
Washer Included:
No
ACDelco #:
41-830
ACDelco #:
R45TX
Bosch #:
HR9ACY+
Champion Spark Plug #:
108
Champion Spark Plug #:
RV8C6
Chrysler #:
8129844
DENSO Auto Parts #:
5030
DENSO Auto Parts #:
T16R-U15
General Motors #:
19157989
General Motors #:
5613846
General Motors #:
5613857
General Motors #:
5613869
General Motors #:
5614252
Motorcraft #:
ARF2-6
Motorcraft #:
ARF3-6
Motorcraft #:
ARF4-6
Motorcraft #:
ASF3C-6
Motorcraft #:
ASF4C-6
NGK #:
7240
NGK #:
BR6FS-15
NGK #:
YR55
NGK #:
YR55IX
Country of Origin:
CN

Manufacturer Warranty:

2 Years

Autolite 685 Spark Plug compatibility with your 1978 GMC C15...

Last Updated: 10/05/2024

Years Vehicle Per Vehicle Fit NotesFitment Notes

1978

 

1977

 

1978

 

1977

 
GMC C15

5.7L V8 Gas OHV
8
 
Copper Resistor
with California Emissions System
Gap .060 (in)
 

GMC C15



5.7L V8 Gas OHV Copper Resistor
with California Emissions System
Gap .060 (in)

8 Per Vehicle

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