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1979 Ford Mustang

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Autolite 666 Spark Plug
for 1979 Ford Mustang 5.0L V8 Gas OHV

Autolite 666 Spark Plug - 1979 Ford Mustang Image 1
Autolite 666 Spark Plug - 1979 Ford Mustang Image 2
Autolite 666 Spark Plug - 1979 Ford Mustang

Autolite
Brand:Autolite
Part Number: 666
UPC: 009100006660
Weight: 0.12 lbs
Condition:New



On Sale:

$3.49

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

Product Information

Description:

Get the Autolite 666 Spark Plug for your 1979 Ford Mustang. 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:
0.133 in.
Center Electrode Insulator Tip Projection:
3.38 mm
Center Electrode Projection:
Mid Projection
Center Electrode Tip Material:
Nickel
Core Nose Length:
0.822 in.
Core Nose Length:
20.88 mm
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:
2.47 in.
Insulator Height:
62.74 mm
Insulator Material:
Ceramic
Manufacturer Heat Range:
7
Pre-Gap Size:
0.06 in.
Pre-Gap Size:
1.52 mm
Reach:
0.431 in.
Reach:
10.95 mm
Resistance:
4000 Ohm
Resistor Type:
Yes
Seat Type:
Tapered
Thread Diameter:
14 mm
Washer Included:
No
ACDelco #:
R43CTS6
ACDelco #:
R43TS6
ACDelco #:
R43TSX
ACDelco #:
R44TS6
ACDelco #:
R44TS8
ACDelco #:
R44TSX
ACDelco #:
R45TS6
ACDelco #:
R45TS6K
ACDelco #:
R45TS8
ACDelco #:
R45TSX
ACDelco #:
R46TSX
Accel #:
586
Bosch #:
7976
Bosch #:
HR9BC+
Bosch #:
HR9BCY+
Bosch #:
HR9BPZ
Bosch #:
HS5E
Champion Spark Plug #:
17
Champion Spark Plug #:
586
Champion Spark Plug #:
RV15YC6
Champion Spark Plug #:
RV17YC6
Champion Spark Plug #:
RV19YC6
Chrysler #:
8129848
Chrysler #:
8129859
DENSO Auto Parts #:
5021
DENSO Auto Parts #:
T14PR-U15
DENSO Auto Parts #:
T16PR-U15
Delphi #:
222316
Delphi #:
222516
Delphi #:
32221
Ford #:
8U2J12405MA
General Motors #:
19157991
General Motors #:
19157993
General Motors #:
19157997
General Motors #:
5613794
General Motors #:
5613833
General Motors #:
5613841
General Motors #:
5613844
General Motors #:
5613848
General Motors #:
5613851
General Motors #:
5613858
General Motors #:
5613877
General Motors #:
5613883
General Motors #:
5613935
General Motors #:
5614046
Mopar #:
SP0RV15YC6
Mopar #:
SP0RV17YC6
Motorcraft #:
ARF32-6
Motorcraft #:
ARF32C6
Motorcraft #:
ARF42-6
Motorcraft #:
ARF52-6
Motorcraft #:
ARF52-8
Motorcraft #:
ARF62-6
Motorcraft #:
ASF32C-6
Motorcraft #:
ASF32C6
Motorcraft #:
ASF42-6
Motorcraft #:
ASF42C-6
Motorcraft #:
ASF42C-7
Motorcraft #:
ASF42C7
Motorcraft #:
ASF52-6
Motorcraft #:
ASF52C-7
Motorcraft #:
ASF52C7
Motorcraft #:
SP426
Motorcraft #:
SP443
Motorcraft #:
SP626
NGK #:
2096
NGK #:
BPR4FS-15
NGK #:
BPR4FS-20
NGK #:
BPR5FS-15
NGK #:
BPR6FS
NGK #:
BR5FS-15
NGK #:
UR40
NGK #:
UR45
NGK #:
UR55
Splitfire #:
SF2D6
Splitfire #:
SF2E6
Country of Origin:
MX

Manufacturer Warranty:

2 Years

Autolite 666 Spark Plug compatibility with your 1979 Ford Mustang...

Last Updated: 10/05/2024

Years Vehicle Per Vehicle Fit NotesFitment Notes

1979

 

1979

 
Ford Mustang

5.0L V8 Gas OHV
8
 
Copper Resistor
Replaces 664 and 665
Replaces AP664
From 02/02/1979
OE Style
Gap .060 (in)
 

Ford Mustang



5.0L V8 Gas OHV Copper Resistor
Replaces 664 and 665
Replaces AP664
From 02/02/1979
OE Style
Gap .060 (in)

8 Per Vehicle

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