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1991 GMC Sonoma

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Autolite APP25 Spark Plug
for 1991 GMC Sonoma

Autolite APP25 Spark Plug - 1991 GMC Sonoma Image 1
Autolite APP25 Spark Plug - 1991 GMC Sonoma Image 2
Autolite APP25 Spark Plug - 1991 GMC Sonoma

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 1991 GMC Sonoma. 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:
0.133 in.
Center Electrode Insulator Tip Projection:
3.38 mm
Center Electrode Projection:
Mid Projection
Center Electrode Tip Material:
Platinum
Core Nose Length:
0.726 in.
Core Nose Length:
18.44 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:
5/8 in.
Hex Type:
Hex
Indexed:
No
Insulator Height:
2.374 in.
Insulator Height:
60.3 mm
Insulator Material:
Ceramic
Manufacturer Heat Range:
8
Pre-Gap Size:
0.044 in.
Pre-Gap Size:
1.12 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 #:
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 1991 GMC Sonoma...

Last Updated: 10/05/2024

Years Vehicle Per Vehicle Fit NotesFitment Notes

1992

 

1991

 

1992

 

1991

 
GMC Sonoma

2.8L V6 Gas OHV
6
 
Double Platinum
Gap .045 (in)
 

GMC Sonoma



2.8L V6 Gas OHV Double Platinum
Gap .045 (in)

6 Per Vehicle

1991

 

1991

 
GMC Sonoma

4.3L V6 Gas OHV
6
 
Double Platinum
Gap .035 (in)
 

GMC Sonoma



4.3L V6 Gas OHV Double Platinum
Gap .035 (in)

6 Per Vehicle

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