Brands Vehicles
Lowest Prices
Free Returns
Online Since 2009
Shopping for

1977 Ford Custom 500

X

Autolite XP666 Spark Plug
for 1977 Ford Custom 500

Autolite XP666 Spark Plug - 1977 Ford Custom 500 Image 1
Autolite XP666 Spark Plug - 1977 Ford Custom 500 Image 2
Autolite XP666 Spark Plug - 1977 Ford Custom 500

Autolite
Brand:Autolite
Part Number: XP666
UPC: 009100267290
Weight: 0.11 lbs
Condition:New



Availability:
0 in Stock
 OUT OF STOCK

Product Information

Description:

Get the Autolite XP666 Spark Plug for your 1977 Ford Custom 500. Buy now and secure your purchase online!

Autolite Iridium XP spark plugs are engineered with an iridium-enhanced fine-wire and a proprietary, platinum ground electrode, to increase durability*, while its tapered ground wire maximizes engine efficiency, delivering improved engine performance, fuel efficiency, acceleration, and ignitability.

Features and Benefits:

  • Designed with a nickel-plated shell that is corrosion resistant to provide increased durability for extended periods.
  • Engineered with an Iridium-enhanced center electrode and fine-wire design that increases ignitability and provides a more focused ignition for improved engine performance.
  • Includes a lifetime limited warranty that guarantees optimum performance equal to OE designed plugs.
  • Its high alumina multi-rib ceramic insulator provides thermal conductivity and superior insulation for increased strength while preventing flash-over.
  • Its proprietary platinum ground electrode provides increased durability* and resistance to wear, extending the life of the plug.
  • The tapered ground wire improves engine ignitability.

Specifications:

Center Electrode Core Material:
Copper
Center Electrode Design:
Fine Wire
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:
Iridium
Core Nose Length:
0.822 in.
Core Nose Length:
20.88 mm
Electrical Terminal Type:
Non-Removable Nut
Grade Type:
Performance
Ground Electrode Quantity:
1
Ground Electrode Tip Design:
Taper Cut
Ground Electrode Tip Material:
Platinum
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:
0.07 in.
Pre-Gap Size:
1.78 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
Bosch #:
W2C
NGK #:
7559
NGK #:
UR45IX
NGK #:
UR55IX
Country of Origin:
MX

Autolite XP666 Spark Plug compatibility with your 1977 Ford Custom 500...

Last Updated: 10/05/2024

Years Vehicle Per Vehicle Fit NotesFitment Notes

1977

 

1977

 
Ford Custom 500

5.8L V8 Gas OHV
8
 
Iridium XP
with California Emissions System
Gap .060 (in)
Eng Ver: Modified
 

Ford Custom 500



5.8L V8 Gas OHV Iridium XP
with California Emissions System
Gap .060 (in)
Eng Ver: Modified

8 Per Vehicle

1977

 

1977

 
Ford Custom 500

6.6L V8 Gas OHV
8
 
Iridium XP
Gap .060 (in)
 

Ford Custom 500



6.6L V8 Gas OHV Iridium XP
Gap .060 (in)

8 Per Vehicle

Didn't find a match for your vehicle?

  See Other Choices