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  2. Auto Parts
  3. Ignition
  4. Secondary Ignition
  5. Spark Plug
  6. Autolite APP45 for 1973

Autolite APP45 Spark Plug
for 1973 (please select make/model)

Autolite APP45 Spark Plug - 1973 Image 1
Autolite APP45 Spark Plug - 1973 Image 2
Autolite APP45 Spark Plug - 1973

Autolite
Brand:Autolite
Part Number: APP45
UPC: 009100260123
Weight: 0.16 lbs
Condition:New



On Sale:

$8.96

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

Product Information

Description:

Get the Autolite APP45 Spark Plug for your 1973. Buy now and secure your purchase online!

Autolite Double Platinum spark plugs have a platinum-to-platinum design that decreases gap erosion, reduces misfires, and provides improved durability*, leading to longer service life. It provides superior performance over copper and platinum plugs primarily used in distributorless ignition system (DIS) engines.

Features and Benefits:

  • Engineered with a platinum-to-platinum design that prevents gap erosion, extending the life of the spark plug.
  • Its high alumina ceramic insulator provides optimum thermal conductivity and dielectric strength.
  • The multi-rib insulator prevents flash-over.
  • The yttrium-Enhanced Ground Electrode delivers superior heat transfer that delivers more durability under high temps and pressure for greater life.

Specifications:

Center Electrode Core Material:
Copper
Center Electrode Insulator Tip Projection:
0.178 in.
Center Electrode Insulator Tip Projection:
4.52 mm
Center Electrode Projection:
Long Projection
Center Electrode Tip Material:
Platinum
Core Nose Length:
0.715 in.
Core Nose Length:
18.16 mm
Electrical Terminal Type:
Non-Removable Nut
Grade Type:
Performance
Ground Electrode Quantity:
1
Ground Electrode Tip Design:
Standard
Ground Electrode Tip Material:
Platinum
Hex Size:
13/16 in.
Hex Type:
Hex
Indexed:
No
Insulator Height:
2.383 in.
Insulator Height:
60.53 mm
Insulator Material:
Ceramic
Manufacturer Heat Range:
8
Pre-Gap Size:
0.044 in.
Pre-Gap Size:
1.12 mm
Reach:
0.438 in.
Reach:
11.13 mm
Resistance:
4000 Ohm
Resistor Type:
Yes
Seat Type:
Tapered
Thread Diameter:
18 mm
Washer Included:
No
NGK #:
7510
NGK #:
WR5IX
Country of Origin:
MX

Manufacturer Warranty:

5 Years

Select a vehicle to narrow Autolite APP45 Spark Plug fitment info!

Last Updated: 10/05/2024

Years Vehicle Per Vehicle Fit NotesFitment Notes

1973

 

1972

 

1971

 

1970

 

1969

 

1968

 

1967

 

1973

 

1972

 

1971

 

1970

 

1969

 

1968

 

1967

 
AC 428

7.0L V8 Gas
8
 
Double Platinum
Gap .025 (in)
 

AC 428



7.0L V8 Gas Double Platinum
Gap .025 (in)

8 Per Vehicle

1973

 

1972

 

1971

 

1970

 

1969

 

1968

 

1967

 

1966

 

1973

 

1972

 

1971

 

1970

 

1969

 

1968

 

1967

 

1966

 
AC Shelby Cobra

7.0L V8 Gas OHV
8
 
Double Platinum
Gap .025 (in)
 

AC Shelby Cobra



7.0L V8 Gas OHV Double Platinum
Gap .025 (in)

8 Per Vehicle

1974

 

1973

 

1972

 

1974

 

1973

 

1972

 
Ford Bronco

5.0L V8 Gas OHV
8
 
Double Platinum
Gap .035 (in)
 

Ford Bronco



5.0L V8 Gas OHV Double Platinum
Gap .035 (in)

8 Per Vehicle

1974

 

1973

 

1972

 

1971

 

1970

 

1969

 

1968

 

1974

 

1973

 

1972

 

1971

 

1970

 

1969

 

1968

 
Ford Country Sedan

5.0L V8 Gas OHV
8
 
Double Platinum
Gap .035 (in)
 

Ford Country Sedan



5.0L V8 Gas OHV Double Platinum
Gap .035 (in)

8 Per Vehicle

1973

 

1972

 

1971

 

1970

 

1969

 

1973

 

1972

 

1971

 

1970

 

1969

 
Ford Country Sedan

5.8L V8 Gas OHV
8
 
Double Platinum
18 (mm) Thread Size
Gap .035 (in)
Eng Ver: Windsor
 

Ford Country Sedan



5.8L V8 Gas OHV Double Platinum
18 (mm) Thread Size
Gap .035 (in)
Eng Ver: Windsor

8 Per Vehicle

1974

 

1973

 

1972

 

1971

 

1970

 

1969

 

1968

 

1974

 

1973

 

1972

 

1971

 

1970

 

1969

 

1968

 
Ford Country Squire

5.0L V8 Gas OHV
8
 
Double Platinum
Gap .035 (in)
 

Ford Country Squire



5.0L V8 Gas OHV Double Platinum
Gap .035 (in)

8 Per Vehicle

1973

 

1972

 

1971

 

1970

 

1969

 

1973

 

1972

 

1971

 

1970

 

1969

 
Ford Country Squire

5.8L V8 Gas OHV
8
 
Double Platinum
18 (mm) Thread Size
Gap .035 (in)
Eng Ver: Windsor
 

Ford Country Squire



5.8L V8 Gas OHV Double Platinum
18 (mm) Thread Size
Gap .035 (in)
Eng Ver: Windsor

8 Per Vehicle

1974

 

1973

 

1972

 

1971

 

1970

 

1969

 

1968

 

1974

 

1973

 

1972

 

1971

 

1970

 

1969

 

1968

 
Ford Custom 500

5.0L V8 Gas OHV
8
 
Double Platinum
Gap .035 (in)
 

Ford Custom 500



5.0L V8 Gas OHV Double Platinum
Gap .035 (in)

8 Per Vehicle

1973

 

1972

 

1971

 

1970

 

1969

 

1973

 

1972

 

1971

 

1970

 

1969

 
Ford Custom 500

5.8L V8 Gas OHV
8
 
Double Platinum
18 (mm) Thread Size
Gap .035 (in)
Eng Ver: Windsor
 

Ford Custom 500



5.8L V8 Gas OHV Double Platinum
18 (mm) Thread Size
Gap .035 (in)
Eng Ver: Windsor

8 Per Vehicle

1974

 

1973

 

1974

 

1973

 
Ford E-100 Econoline

4.9L L6 Gas OHV
6
 
Double Platinum
Light Duty
Gap .035 (in)
 

Ford E-100 Econoline



4.9L L6 Gas OHV Double Platinum
Light Duty
Gap .035 (in)

6 Per Vehicle

1974

 

1973

 

1972

 

1974

 

1973

 

1972

 
Ford E-100 Econoline

5.0L V8 Gas OHV
8
 
Double Platinum
Gap .035 (in)
 

Ford E-100 Econoline



5.0L V8 Gas OHV Double Platinum
Gap .035 (in)

8 Per Vehicle

1973

 

1973

 
Ford E-100 Econoline

3.9L L6 Gas OHV
6
 
Double Platinum
Light Duty
Gap .035 (in)
 

Ford E-100 Econoline



3.9L L6 Gas OHV Double Platinum
Light Duty
Gap .035 (in)

6 Per Vehicle

1974

 

1973

 

1974

 

1973

 
Ford E-200 Econoline

4.9L L6 Gas OHV
6
 
Double Platinum
Light Duty
Gap .035 (in)
 

Ford E-200 Econoline



4.9L L6 Gas OHV Double Platinum
Light Duty
Gap .035 (in)

6 Per Vehicle

1974

 

1973

 

1972

 

1974

 

1973

 

1972

 
Ford E-200 Econoline

5.0L V8 Gas,
5.0L V8 Gas OHV
8
 
Double Platinum
Gap .035 (in)
 

Ford E-200 Econoline



5.0L V8 Gas,
5.0L V8 Gas OHV Double Platinum
Gap .035 (in)

8 Per Vehicle

1973

 

1973

 
Ford E-200 Econoline

3.9L L6 Gas
6
 
Double Platinum
Light Duty
Gap .035 (in)
 

Ford E-200 Econoline



3.9L L6 Gas Double Platinum
Light Duty
Gap .035 (in)

6 Per Vehicle

1974

 

1973

 

1974

 

1973

 
Ford E-300 Econoline

4.9L L6 Gas OHV
6
 
Double Platinum
Light Duty
Gap .035 (in)
 

Ford E-300 Econoline



4.9L L6 Gas OHV Double Platinum
Light Duty
Gap .035 (in)

6 Per Vehicle

1974

 

1973

 

1972

 

1974

 

1973

 

1972

 
Ford E-300 Econoline

5.0L V8 Gas,
5.0L V8 Gas OHV
8
 
Double Platinum
Gap .035 (in)
 

Ford E-300 Econoline



5.0L V8 Gas,
5.0L V8 Gas OHV Double Platinum
Gap .035 (in)

8 Per Vehicle

1973

 

1973

 
Ford E-300 Econoline

3.9L L6 Gas
6
 
Double Platinum
Light Duty
Gap .035 (in)
 

Ford E-300 Econoline



3.9L L6 Gas Double Platinum
Light Duty
Gap .035 (in)

6 Per Vehicle

1974

 

1973

 

1974

 

1973

 
Ford F-100

4.9L L6 Gas OHV
6
 
Double Platinum
Light Duty
Gap .035 (in)
 

Ford F-100



4.9L L6 Gas OHV Double Platinum
Light Duty
Gap .035 (in)

6 Per Vehicle

1974

 

1973

 

1972

 

1974

 

1973

 

1972

 
Ford F-100

5.0L V8 Gas OHV
8
 
Double Platinum
Gap .035 (in)
 

Ford F-100



5.0L V8 Gas OHV Double Platinum
Gap .035 (in)

8 Per Vehicle

1974

 

1973

 

1972

 

1971

 

1970

 

1974

 

1973

 

1972

 

1971

 

1970

 
Ford F-100

3.9L L6 Gas OHV
6
 
Double Platinum
Gap .035 (in)
 

Ford F-100



3.9L L6 Gas OHV Double Platinum
Gap .035 (in)

6 Per Vehicle

1973

 

1972

 

1971

 

1970

 

1969

 

1968

 

1973

 

1972

 

1971

 

1970

 

1969

 

1968

 
Ford F-100

5.9L V8 Gas OHV,
6.4L V8 Gas OHV
8
 
Double Platinum
Gap .035 (in)
 

Ford F-100



5.9L V8 Gas OHV,
6.4L V8 Gas OHV Double Platinum
Gap .035 (in)

8 Per Vehicle

1974

 

1973

 

1974

 

1973

 
Ford F-250

4.9L L6 Gas OHV
6
 
Double Platinum
Light Duty
Gap .035 (in)
 

Ford F-250



4.9L L6 Gas OHV Double Platinum
Light Duty
Gap .035 (in)

6 Per Vehicle

1974

 

1973

 

1972

 

1974

 

1973

 

1972

 
Ford F-250

5.0L V8 Gas OHV
8
 
Double Platinum
Gap .035 (in)
 

Ford F-250



5.0L V8 Gas OHV Double Platinum
Gap .035 (in)

8 Per Vehicle

1973

 

1973

 
Ford F-250

3.9L L6 Gas OHV
6
 
Double Platinum
High Performance
Light Duty
Gap .035 (in)
 

Ford F-250



3.9L L6 Gas OHV Double Platinum
High Performance
Light Duty
Gap .035 (in)

6 Per Vehicle

1973

 

1972

 

1971

 

1970

 

1969

 

1968

 

1973

 

1972

 

1971

 

1970

 

1969

 

1968

 
Ford F-250

5.9L V8 Gas OHV,
6.4L V8 Gas OHV
8
 
Double Platinum
Gap .035 (in)
 

Ford F-250



5.9L V8 Gas OHV,
6.4L V8 Gas OHV Double Platinum
Gap .035 (in)

8 Per Vehicle

1974

 

1973

 

1974

 

1973

 
Ford F-350

4.9L L6 Gas OHV
6
 
Double Platinum
Light Duty
Gap .035 (in)
 

Ford F-350



4.9L L6 Gas OHV Double Platinum
Light Duty
Gap .035 (in)

6 Per Vehicle

1974

 

1973

 

1972

 

1974

 

1973

 

1972

 
Ford F-350

5.0L V8 Gas OHV
8
 
Double Platinum
Gap .035 (in)
 

Ford F-350



5.0L V8 Gas OHV Double Platinum
Gap .035 (in)

8 Per Vehicle

1973

 

1973

 
Ford F-350

3.9L L6 Gas OHV
6
 
Double Platinum
High Performance
Light Duty
Gap .035 (in)
 

Ford F-350



3.9L L6 Gas OHV Double Platinum
High Performance
Light Duty
Gap .035 (in)

6 Per Vehicle

1973

 

1972

 

1971

 

1970

 

1969

 

1968

 

1973

 

1972

 

1971

 

1970

 

1969

 

1968

 
Ford F-350

5.9L V8 Gas OHV,
6.4L V8 Gas OHV
8
 
Double Platinum
Gap .035 (in)
 

Ford F-350



5.9L V8 Gas OHV,
6.4L V8 Gas OHV Double Platinum
Gap .035 (in)

8 Per Vehicle

1974

 

1973

 

1972

 

1971

 

1970

 

1969

 

1968

 

1974

 

1973

 

1972

 

1971

 

1970

 

1969

 

1968

 
Ford Galaxie 500

5.0L V8 Gas OHV
8
 
Double Platinum
Gap .035 (in)
 

Ford Galaxie 500



5.0L V8 Gas OHV Double Platinum
Gap .035 (in)

8 Per Vehicle

1973

 

1972

 

1971

 

1970

 

1969

 

1973

 

1972

 

1971

 

1970

 

1969

 
Ford Galaxie 500

5.8L V8 Gas OHV
8
 
Double Platinum
18 (mm) Thread Size
Gap .035 (in)
Eng Ver: Windsor
 

Ford Galaxie 500



5.8L V8 Gas OHV Double Platinum
18 (mm) Thread Size
Gap .035 (in)
Eng Ver: Windsor

8 Per Vehicle

1974

 

1973

 

1972

 

1974

 

1973

 

1972

 
Ford Gran Torino

5.0L V8 Gas OHV
8
 
Double Platinum
Gap .035 (in)
 

Ford Gran Torino



5.0L V8 Gas OHV Double Platinum
Gap .035 (in)

8 Per Vehicle

1973

 

1973

 
Ford Gran Torino

5.0L V8 Gas
8
 
Double Platinum
Gap .035 (in)
 

Ford Gran Torino



5.0L V8 Gas Double Platinum
Gap .035 (in)

8 Per Vehicle

1973

 

1972

 

1973

 

1972

 
Ford Gran Torino

5.8L V8 Gas OHV
8
 
Double Platinum
18 (mm) Thread Size
Gap .035 (in)
Eng Ver: Windsor
 

Ford Gran Torino



5.8L V8 Gas OHV Double Platinum
18 (mm) Thread Size
Gap .035 (in)
Eng Ver: Windsor

8 Per Vehicle

1974

 

1973

 

1972

 

1971

 

1970

 

1969

 

1968

 

1974

 

1973

 

1972

 

1971

 

1970

 

1969

 

1968

 
Ford LTD

5.0L V8 Gas OHV
8
 
Double Platinum
Gap .035 (in)
 

Ford LTD



5.0L V8 Gas OHV Double Platinum
Gap .035 (in)

8 Per Vehicle

1973

 

1972

 

1971

 

1970

 

1969

 

1973

 

1972

 

1971

 

1970

 

1969

 
Ford LTD

5.8L V8 Gas OHV
8
 
Double Platinum
18 (mm) Thread Size
Gap .035 (in)
Eng Ver: Windsor
 

Ford LTD



5.8L V8 Gas OHV Double Platinum
18 (mm) Thread Size
Gap .035 (in)
Eng Ver: Windsor

8 Per Vehicle

1973

 

1972

 

1971

 

1973

 

1972

 

1971

 
Ford M-400

5.9L V8 Gas OHV,
6.4L V8 Gas OHV
8
 
Double Platinum
Gap .035 (in)
 

Ford M-400



5.9L V8 Gas OHV,
6.4L V8 Gas OHV Double Platinum
Gap .035 (in)

8 Per Vehicle

1974

 

1973

 

1972

 

1971

 

1974

 

1973

 

1972

 

1971

 
Ford Maverick

5.0L V8 Gas OHV
8
 
Double Platinum
Gap .035 (in)
 

Ford Maverick



5.0L V8 Gas OHV Double Platinum
Gap .035 (in)

8 Per Vehicle

1973

 

1973

 
Ford Mustang

5.0L V8 Gas OHV
8
 
Double Platinum
Gap .035 (in)
 

Ford Mustang



5.0L V8 Gas OHV Double Platinum
Gap .035 (in)

8 Per Vehicle

1973

 

1972

 

1973

 

1972

 
Ford Mustang

5.8L V8 Gas OHV
8
 
Double Platinum
18 (mm) Thread Size
Gap .035 (in)
Eng Ver: Windsor
 

Ford Mustang



5.8L V8 Gas OHV Double Platinum
18 (mm) Thread Size
Gap .035 (in)
Eng Ver: Windsor

8 Per Vehicle

1973

 

1973

 
Ford P-100

3.9L L6 Gas OHV
6
 
Double Platinum
High Performance
Light Duty
Gap .035 (in)
 

Ford P-100



3.9L L6 Gas OHV Double Platinum
High Performance
Light Duty
Gap .035 (in)

6 Per Vehicle

1973

 

1972

 

1971

 

1970

 

1973

 

1972

 

1971

 

1970

 
Ford P-350

4.9L L6 Gas OHV
6
 
Double Platinum
Gap .035 (in)
 

Ford P-350



4.9L L6 Gas OHV Double Platinum
Gap .035 (in)

6 Per Vehicle

1973

 

1972

 

1971

 

1970

 

1969

 

1968

 

1973

 

1972

 

1971

 

1970

 

1969

 

1968

 
Ford P-350

5.9L V8 Gas OHV,
6.4L V8 Gas OHV
8
 
Double Platinum
Gap .035 (in)
 

Ford P-350



5.9L V8 Gas OHV,
6.4L V8 Gas OHV Double Platinum
Gap .035 (in)

8 Per Vehicle

1974

 

1973

 

1972

 

1971

 

1974

 

1973

 

1972

 

1971

 
Ford Pinto

2.0L L4 Gas,
2.0L L4 Gas SOHC
4
 
Double Platinum
Gap .035 (in)
 

Ford Pinto



2.0L L4 Gas,
2.0L L4 Gas SOHC Double Platinum
Gap .035 (in)

4 Per Vehicle

1974

 

1973

 

1972

 

1971

 

1970

 

1969

 

1968

 

1974

 

1973

 

1972

 

1971

 

1970

 

1969

 

1968

 
Ford Ranch Wagon

5.0L V8 Gas OHV
8
 
Double Platinum
Gap .035 (in)
 

Ford Ranch Wagon



5.0L V8 Gas OHV Double Platinum
Gap .035 (in)

8 Per Vehicle

1973

 

1972

 

1971

 

1970

 

1969

 

1973

 

1972

 

1971

 

1970

 

1969

 
Ford Ranch Wagon

5.8L V8 Gas OHV
8
 
Double Platinum
18 (mm) Thread Size
Gap .035 (in)
Eng Ver: Windsor
 

Ford Ranch Wagon



5.8L V8 Gas OHV Double Platinum
18 (mm) Thread Size
Gap .035 (in)
Eng Ver: Windsor

8 Per Vehicle

1974

 

1973

 

1972

 

1974

 

1973

 

1972

 
Ford Ranchero

5.0L V8 Gas OHV
8
 
Double Platinum
Gap .035 (in)
 

Ford Ranchero



5.0L V8 Gas OHV Double Platinum
Gap .035 (in)

8 Per Vehicle

1973

 

1972

 

1971

 

1970

 

1969

 

1973

 

1972

 

1971

 

1970

 

1969

 
Ford Ranchero

5.8L V8 Gas OHV
8
 
Double Platinum
18 (mm) Thread Size
Gap .035 (in)
Eng Ver: Windsor
 

Ford Ranchero



5.8L V8 Gas OHV Double Platinum
18 (mm) Thread Size
Gap .035 (in)
Eng Ver: Windsor

8 Per Vehicle

1974

 

1973

 

1972

 

1971

 

1970

 

1969

 

1968

 

1974

 

1973

 

1972

 

1971

 

1970

 

1969

 

1968

 
Ford Torino

5.0L V8 Gas OHV
8
 
Double Platinum
Gap .035 (in)
 

Ford Torino



5.0L V8 Gas OHV Double Platinum
Gap .035 (in)

8 Per Vehicle

1973

 

1972

 

1971

 

1970

 

1973

 

1972

 

1971

 

1970

 
Ford Torino

5.8L V8 Gas OHV
8
 
Double Platinum
18 (mm) Thread Size
Gap .035 (in)
Eng Ver: Windsor
 

Ford Torino



5.8L V8 Gas OHV Double Platinum
18 (mm) Thread Size
Gap .035 (in)
Eng Ver: Windsor

8 Per Vehicle

1974

 

1973

 

1974

 

1973

 
Mercury Capri

2.0L L4 Gas SOHC
4
 
Double Platinum
Gap .035 (in)
 

Mercury Capri



2.0L L4 Gas SOHC Double Platinum
Gap .035 (in)

4 Per Vehicle

1973

 

1972

 

1971

 

1970

 

1973

 

1972

 

1971

 

1970

 
Mercury Colony Park

5.8L V8 Gas OHV
8
 
Double Platinum
18 (mm) Thread Size
Gap .035 (in)
Eng Ver: Windsor
 

Mercury Colony Park



5.8L V8 Gas OHV Double Platinum
18 (mm) Thread Size
Gap .035 (in)
Eng Ver: Windsor

8 Per Vehicle

1973

 

1972

 

1971

 

1973

 

1972

 

1971

 
Mercury Comet

5.0L V8 Gas OHV
8
 
Double Platinum
Gap .035 (in)
 

Mercury Comet



5.0L V8 Gas OHV Double Platinum
Gap .035 (in)

8 Per Vehicle

1973

 

1972

 

1971

 

1970

 

1973

 

1972

 

1971

 

1970

 
Mercury Cougar

5.8L V8 Gas OHV
8
 
Double Platinum
18 (mm) Thread Size
Gap .035 (in)
Eng Ver: Windsor
 

Mercury Cougar



5.8L V8 Gas OHV Double Platinum
18 (mm) Thread Size
Gap .035 (in)
Eng Ver: Windsor

8 Per Vehicle

1973

 

1972

 

1971

 

1973

 

1972

 

1971

 
Mercury Marquis

5.8L V8 Gas OHV
8
 
Double Platinum
18 (mm) Thread Size
Gap .035 (in)
Eng Ver: Windsor
 

Mercury Marquis



5.8L V8 Gas OHV Double Platinum
18 (mm) Thread Size
Gap .035 (in)
Eng Ver: Windsor

8 Per Vehicle

1974

 

1973

 

1972

 

1971

 

1970

 

1969

 

1974

 

1973

 

1972

 

1971

 

1970

 

1969

 
Mercury Montego

5.8L V8 Gas OHV
8
 
Double Platinum
18 (mm) Thread Size
Gap .035 (in)
Eng Ver: Windsor
 

Mercury Montego



5.8L V8 Gas OHV Double Platinum
18 (mm) Thread Size
Gap .035 (in)
Eng Ver: Windsor

8 Per Vehicle

1974

 

1973

 

1972

 

1971

 

1970

 

1969

 

1968

 

1974

 

1973

 

1972

 

1971

 

1970

 

1969

 

1968

 
Mercury Montego

5.0L V8 Gas OHV
8
 
Double Platinum
Gap .035 (in)
 

Mercury Montego



5.0L V8 Gas OHV Double Platinum
Gap .035 (in)

8 Per Vehicle

1974

 

1973

 

1972

 

1971

 

1970

 

1974

 

1973

 

1972

 

1971

 

1970

 
Mercury Monterey

5.8L V8 Gas OHV
8
 
Double Platinum
18 (mm) Thread Size
Gap .035 (in)
Eng Ver: Windsor
 

Mercury Monterey



5.8L V8 Gas OHV Double Platinum
18 (mm) Thread Size
Gap .035 (in)
Eng Ver: Windsor

8 Per Vehicle

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