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1981 Cadillac DeVille

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Autolite AP646 Spark Plug
for 1981 Cadillac DeVille 6.0L V8 Gas OHV

Autolite AP646 Spark Plug - 1981 Cadillac DeVille Image 1
Autolite AP646 Spark Plug - 1981 Cadillac DeVille Image 2
Autolite AP646 Spark Plug - 1981 Cadillac DeVille

Autolite
Brand:Autolite
Part Number: AP646
UPC: 009100252531
Weight: 0.14 lbs
Condition:New



On Sale:

$5.88

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

Product Information

Description:

Get the Autolite AP646 Spark Plug for your 1981 Cadillac DeVille. Buy now and secure your purchase online!

Autolite Platinum spark plugs are engineered with a platinum center electrode firing tip that provides improved performance and increased durability, making it a reliable choice for all older engine applications and designs. Its platinum design delivers quicker firing, smoother starts, for better acceleration, and improved fuel efficiency.

Features and Benefits:

  • Designed with a nickel-plated shell that is corrosion resistant to provide increased durability for extended life.
  • Engineered with a platinum firing tip that prevents gap erosion for longer service life.
  • Its high alumina ceramic insulator provides thermal conductivity and superior insulation for increased strength.
  • The multi-rib insulator prevents flash-over.

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:
Platinum
Core Nose Length:
0.934 in.
Core Nose Length:
23.72 mm
Electrical Terminal Type:
Non-Removable Nut
Grade Type:
Performance
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:
2.224 in.
Insulator Height:
56.49 mm
Insulator Material:
Ceramic
Manufacturer Heat Range:
8
Pre-Gap Size:
0.05 in.
Pre-Gap Size:
1.27 mm
Reach:
0.75 in.
Reach:
19.05 mm
Resistance:
4000 Ohm
Resistor Type:
Yes
Seat Type:
Flat
Thread Diameter:
14 mm
Washer Included:
Yes
Washer Type:
Crush
Bosch #:
6729
Bosch #:
WR8LPP30V
Champion Spark Plug #:
105
Champion Spark Plug #:
RN14PMC5
DENSO Auto Parts #:
W14EXR-U15
Motorcraft #:
AGR52-6
Motorcraft #:
AGS52C-6
Motorcraft #:
AGS52C6
NGK #:
3142
NGK #:
GR45GP
Splitfire #:
PP064F
Country of Origin:
MX

Manufacturer Warranty:

4 Years

Autolite AP646 Spark Plug compatibility with your 1981 Cadillac DeVille...

Last Updated: 10/05/2024

Years Vehicle Per Vehicle Fit NotesFitment Notes

1981

 

1980

 

1981

 

1980

 
Cadillac DeVille

6.0L V8 Gas OHV
8
 
Platinum
Gap .060 (in)
 

Cadillac DeVille



6.0L V8 Gas OHV Platinum
Gap .060 (in)

8 Per Vehicle

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