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1977 GMC C25

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Autolite AP26 Spark Plug
for 1977 GMC C25

Autolite AP26 Spark Plug - 1977 GMC C25 Image 1
Autolite AP26 Spark Plug - 1977 GMC C25 Image 2
Autolite AP26 Spark Plug - 1977 GMC C25

Autolite
Brand:Autolite
Part Number: AP26
UPC: 009100252456
Weight: 0.11 lbs
Condition:New



On Sale:

$5.82

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

Product Information

Description:

Get the Autolite AP26 Spark Plug for your 1977 GMC C25. 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:
0.822 in.
Core Nose Length:
20.88 mm
Electrical Terminal Type:
Non-Removable Nut
Grade Type:
Performance
Ground Electrode Quantity:
1
Ground Electrode Tip Design:
Standard
Ground Electrode Tip Material:
Nickel
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:
0.045 in.
Pre-Gap Size:
1.14 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 #:
41-905
ACDelco #:
CR45TS
ACDelco #:
R45TS
Bosch #:
4112
Champion Spark Plug #:
25
Champion Spark Plug #:
RV19PMC
DENSO Auto Parts #:
5020
Motorcraft #:
AF52
Motorcraft #:
AF52C
Motorcraft #:
ARF52
Motorcraft #:
ARF62
Motorcraft #:
ASF52
Motorcraft #:
ASF52C
Motorcraft #:
SP425
NGK #:
BPR4FS
Splitfire #:
PP002F
Country of Origin:
MX

Manufacturer Warranty:

4 Years

Autolite AP26 Spark Plug compatibility with your 1977 GMC C25...

Last Updated: 10/05/2024

Years Vehicle Per Vehicle Fit NotesFitment Notes

1978

 

1977

 

1978

 

1977

 
GMC C25

4.1L L6 Gas OHV
6
 
Platinum
Gap .035 (in)
 

GMC C25



4.1L L6 Gas OHV Platinum
Gap .035 (in)

6 Per Vehicle

1978

 

1977

 

1978

 

1977

 
GMC C25

5.0L V8 Gas OHV,
7.4L V8 Gas OHV
8
 
Platinum
Light Duty
Gap .045 (in)
 

GMC C25



5.0L V8 Gas OHV,
7.4L V8 Gas OHV Platinum
Light Duty
Gap .045 (in)

8 Per Vehicle

1978

 

1977

 

1976

 

1978

 

1977

 

1976

 
GMC C25

5.7L V8 Gas OHV,
6.6L V8 Gas OHV
8
 
Platinum
Light Duty
Gap .045 (in)
 

GMC C25



5.7L V8 Gas OHV,
6.6L V8 Gas OHV Platinum
Light Duty
Gap .045 (in)

8 Per Vehicle

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