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1981 GMC K1500 Suburban

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Autolite APP25 Spark Plug
for 1981 GMC K1500 Suburban 5.7L V8 Gas OHV

Autolite APP25 Spark Plug - 1981 GMC K1500 Suburban Image 1
Autolite APP25 Spark Plug - 1981 GMC K1500 Suburban Image 2
Autolite APP25 Spark Plug - 1981 GMC K1500 Suburban

Autolite
Brand:Autolite
Part Number: APP25
UPC: 009100260086
Weight: 0.11 lbs
Condition:New



On Sale:

$8.81

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

Product Information

Description:

Get the Autolite APP25 Spark Plug for your 1981 GMC K1500 Suburban. 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 Design:
Standard
Center Electrode Projection:
Mid Projection
Center Electrode Tip Material:
Platinum in.
Electrical Terminal Type:
NonRemovable Nut
Ground Electrode Tip Design:
Not Tapered
Ground Electrode Tip Material:
Platinum in.
Hex Size:
5/8 in.
Manufacturer Heat Range:
8
Pre-Gap Size:
0.044 in.
Reach:
0.431 in.
Resistance:
4000 Ohm
Seat Type:
Tapered
Terminal Type:
Non Removable Nut
Thread Diameter:
14 mm
ACDelco #:
41-803
ACDelco #:
CR43TSM
ACDelco #:
R43TS
ACDelco #:
R44TS
Champion Spark Plug #:
7018
Champion Spark Plug #:
RV17PMP4
Motorcraft #:
AF42C
Motorcraft #:
SP450
Country of Origin:
MX

Manufacturer Warranty:

5 Years

Autolite APP25 Spark Plug compatibility with your 1981 GMC K1500 Suburban...

Last Updated: 10/05/2024

Years Vehicle Per Vehicle Fit NotesFitment Notes

1986

 

1985

 

1984

 

1983

 

1982

 

1981

 

1980

 

1986

 

1985

 

1984

 

1983

 

1982

 

1981

 

1980

 
GMC K1500 Suburban

5.7L V8 Gas OHV
8
 
Double Platinum
Gap .035 (in)
 

GMC K1500 Suburban



5.7L V8 Gas OHV Double Platinum
Gap .035 (in)

8 Per Vehicle

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