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1975 GMC K25

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1975 GMC K25 Autolite Parts

Choose your Engine for your 1975 GMC K25

6 Cyl 4.8L 8 Cyl 5.7L 8 Cyl 6.6L

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1975 GMC K25 Spark Plug 8 Cyl 6.6L Autolite

Autolite 145 Copper Resistor Spark Plug
OE Style; .035 Gap
Copper Resistor Spark Plug
Product Attributes:
- Center Electrode Design: Standard / Regular
- Seat Type: Tapered
- Electrical Terminal Type: Stud
- Ground Electrode Tip Material: Nickel
- Center Electrode Core Material: Copper
- Resistor Type: Yes
- Insulator Material: Ceramic
- Hex Size: 5/8"
- Reach:
  - 0.431
  - 11.0
- Center Electrode Tip Material: Nickel
- Ground Electrode Tip Design: Tapered
- Insulator Type: Short
- Pre-Gap Size:
  - 0.040
  - 1.00
- Resistance: 4000
- Ground Electrode Core Material: Nickel
Autolite® Copper Spark Plugs are manufactured to deliver quick starts, improved fuel economy and smooth acceleration. Autolite® spark plugs are the best alternative to OE spark plugs, offering OE form, fit and function for all makes and models, both foreign and domestic, at a value price. Autolite provides the automotive aftermarket and Original Equipment manufacturers with the highest quality ignition products and is the leading supplier of spark plugs.
Suggested Purchase Quantity: 8
- Most jobs typically require 8 of this item.
This item must be purchased in quantities of 4

This Part Fits the Following OEM/Substitute Numbers:

121, 44T, 5029, 711, ARF4

Additional Fitment Information:

Vehicle	Block	CC	Engine	CID
1975 - GMC K25	V	-	8 Cyl 6.6L	400

25 In Stock

$7.86 USD

$9.43 USD


Brand	Autolite
Part #	A77145
Condition	New
Warehouse	B

UPC: 009100001450

1975 GMC K25 Spark Plug 6 Cyl 4.8L Autolite

Autolite 145 Copper Resistor Spark Plug
Heavy Duty OE Style ; Except High Energy Ignition .035 Gap
Copper Resistor Spark Plug
Product Attributes:
- Center Electrode Design: Standard / Regular
- Seat Type: Tapered
- Electrical Terminal Type: Stud
- Ground Electrode Tip Material: Nickel
- Center Electrode Core Material: Copper
- Resistor Type: Yes
- Insulator Material: Ceramic
- Hex Size: 5/8"
- Reach:
  - 0.431
  - 11.0
- Center Electrode Tip Material: Nickel
- Ground Electrode Tip Design: Tapered
- Insulator Type: Short
- Pre-Gap Size:
  - 0.040
  - 1.00
- Resistance: 4000
- Ground Electrode Core Material: Nickel
Autolite® Copper Spark Plugs are manufactured to deliver quick starts, improved fuel economy and smooth acceleration. Autolite® spark plugs are the best alternative to OE spark plugs, offering OE form, fit and function for all makes and models, both foreign and domestic, at a value price. Autolite provides the automotive aftermarket and Original Equipment manufacturers with the highest quality ignition products and is the leading supplier of spark plugs.
Suggested Purchase Quantity: 8
- Most jobs typically require 8 of this item.
This item must be purchased in quantities of 4

Additional Fitment Information:

Vehicle	Block	CC	Engine	CID
1975 - GMC K25	L	-	6 Cyl 4.8L	292

25 In Stock

$7.86 USD

$9.43 USD


Brand	Autolite
Part #	A77145
Condition	New
Warehouse	B

UPC: 009100001450

1975 GMC K25 Spark Plug 8 Cyl 5.7L Autolite

Autolite 145 Copper Resistor Spark Plug
OE Style; Except High Energy Ignition .035 Gap
Copper Resistor Spark Plug
Product Attributes:
- Center Electrode Design: Standard / Regular
- Seat Type: Tapered
- Electrical Terminal Type: Stud
- Ground Electrode Tip Material: Nickel
- Center Electrode Core Material: Copper
- Resistor Type: Yes
- Insulator Material: Ceramic
- Hex Size: 5/8"
- Reach:
  - 0.431
  - 11.0
- Center Electrode Tip Material: Nickel
- Ground Electrode Tip Design: Tapered
- Insulator Type: Short
- Pre-Gap Size:
  - 0.040
  - 1.00
- Resistance: 4000
- Ground Electrode Core Material: Nickel
Autolite® Copper Spark Plugs are manufactured to deliver quick starts, improved fuel economy and smooth acceleration. Autolite® spark plugs are the best alternative to OE spark plugs, offering OE form, fit and function for all makes and models, both foreign and domestic, at a value price. Autolite provides the automotive aftermarket and Original Equipment manufacturers with the highest quality ignition products and is the leading supplier of spark plugs.
Suggested Purchase Quantity: 8
- Most jobs typically require 8 of this item.
This item must be purchased in quantities of 4

Additional Fitment Information:

Vehicle	Block	CC	Engine	CID
1975 - GMC K25	V	-	8 Cyl 5.7L	350

25 In Stock

$7.86 USD

$9.43 USD


Brand	Autolite
Part #	A77145
Condition	New
Warehouse	B

UPC: 009100001450

1975 GMC K25 Spark Plug 8 Cyl 6.6L Autolite

Autolite AP145 Platinum Spark Plug
.035 Gap
Platinum Spark Plug
Product Attributes:
- Center Electrode Design: Standard / Regular
- Seat Type: Tapered
- Electrical Terminal Type: Stud
- Ground Electrode Tip Material: Nickel
- Center Electrode Core Material: Platinum
- Resistor Type: Yes
- Insulator Material: Ceramic
- Hex Size: 5/8"
- Reach:
  - 0.433
  - 11.0
- Center Electrode Tip Material: Platinum
- Ground Electrode Tip Design: Tapered
- Insulator Type: Short
- Pre-Gap Size:
  - 0.040
  - 1.00
- Resistance: 4000
- Ground Electrode Core Material: Nickel
Autolite® Platinum Spark Plugs are manufactured to deliver greater durability compared to standard copper plugs. Autolite® Platinum Spark Plugs provide easier starts, quicker acceleration, and improved fuel economy. Autolite® spark plugs are the best alternative to OE spark plugs, offering OE form, fit and function for all makes and models, both foreign and domestic, at a value price. Autolite provides the automotive aftermarket and original equipment manufacturers with the highest quality ignition products and is the leading supplier of spark plugs.
Suggested Purchase Quantity: 8
- Most jobs typically require 8 of this item.
This item must be purchased in quantities of 4

Additional Fitment Information:

Vehicle	Block	CC	Engine	CID
1975 - GMC K25	V	-	8 Cyl 6.6L	400

50 In Stock

$9.48 USD

$11.38 USD


Brand	Autolite
Part #	A77AP145
Condition	New
Warehouse	B

UPC: 009100256300

1975 GMC K25 Spark Plug 8 Cyl 5.7L Autolite

Autolite AP145 Platinum Spark Plug
Without high energy ignition .035 Gap
Platinum Spark Plug
Product Attributes:
- Center Electrode Design: Standard / Regular
- Seat Type: Tapered
- Electrical Terminal Type: Stud
- Ground Electrode Tip Material: Nickel
- Center Electrode Core Material: Platinum
- Resistor Type: Yes
- Insulator Material: Ceramic
- Hex Size: 5/8"
- Reach:
  - 0.433
  - 11.0
- Center Electrode Tip Material: Platinum
- Ground Electrode Tip Design: Tapered
- Insulator Type: Short
- Pre-Gap Size:
  - 0.040
  - 1.00
- Resistance: 4000
- Ground Electrode Core Material: Nickel
Autolite® Platinum Spark Plugs are manufactured to deliver greater durability compared to standard copper plugs. Autolite® Platinum Spark Plugs provide easier starts, quicker acceleration, and improved fuel economy. Autolite® spark plugs are the best alternative to OE spark plugs, offering OE form, fit and function for all makes and models, both foreign and domestic, at a value price. Autolite provides the automotive aftermarket and original equipment manufacturers with the highest quality ignition products and is the leading supplier of spark plugs.
Suggested Purchase Quantity: 8
- Most jobs typically require 8 of this item.
This item must be purchased in quantities of 4

Additional Fitment Information:

Vehicle	Block	CC	Engine	CID
1975 - GMC K25	V	-	8 Cyl 5.7L	350

50 In Stock

$9.48 USD

$11.38 USD


Brand	Autolite
Part #	A77AP145
Condition	New
Warehouse	B

UPC: 009100256300

1975 GMC K25 Spark Plug 6 Cyl 4.8L Autolite

Autolite 685 Copper Resistor Spark Plug
Light Duty OE Style with High Energy Ignition (HEI) ; .060 Gap
Copper Resistor Spark Plug
Product Attributes:
- Center Electrode Design: Standard / Regular
- Seat Type: Tapered
- Electrical Terminal Type: Stud
- Ground Electrode Tip Material: Nickel
- Center Electrode Core Material: Copper
- Resistor Type: Yes
- Insulator Material: Ceramic
- Hex Size: 5/8"
- Reach:
  - 0.433
  - 11.0
- Center Electrode Tip Material: Nickel
- Ground Electrode Tip Design: Tapered
- Insulator Type: Short
- Pre-Gap Size:
  - 0.060
  - 1.50
- Resistance: 5000
- Ground Electrode Core Material: Nickel
Autolite® Copper Spark Plugs are manufactured to deliver quick starts, improved fuel economy and smooth acceleration. Autolite® spark plugs are the best alternative to OE spark plugs, offering OE form, fit and function for all makes and models, both foreign and domestic, at a value price. Autolite provides the automotive aftermarket and Original Equipment manufacturers with the highest quality ignition products and is the leading supplier of spark plugs.
Suggested Purchase Quantity: 8
- Most jobs typically require 8 of this item.
This item must be purchased in quantities of 4

This Part Fits the Following OEM/Substitute Numbers:

108, 41-830, 5030, 7240, ARF2-6

Additional Fitment Information:

Vehicle	Block	CC	Engine	CID
1975 - GMC K25	L	-	6 Cyl 4.8L	292

1 In Stock

$7.86 USD

$9.43 USD


Brand	Autolite
Part #	A77685
Condition	New
Warehouse	B

UPC: 009100006851

1975 GMC K25 Spark Plug 6 Cyl 4.8L Autolite

Autolite AP145 Platinum Spark Plug
Heavy Duty; Without high energy ignition .035 Gap
Platinum Spark Plug
Product Attributes:
- Center Electrode Design: Standard / Regular
- Seat Type: Tapered
- Electrical Terminal Type: Stud
- Ground Electrode Tip Material: Nickel
- Center Electrode Core Material: Platinum
- Resistor Type: Yes
- Insulator Material: Ceramic
- Hex Size: 5/8"
- Reach:
  - 0.433
  - 11.0
- Center Electrode Tip Material: Platinum
- Ground Electrode Tip Design: Tapered
- Insulator Type: Short
- Pre-Gap Size:
  - 0.040
  - 1.00
- Resistance: 4000
- Ground Electrode Core Material: Nickel
Autolite® Platinum Spark Plugs are manufactured to deliver greater durability compared to standard copper plugs. Autolite® Platinum Spark Plugs provide easier starts, quicker acceleration, and improved fuel economy. Autolite® spark plugs are the best alternative to OE spark plugs, offering OE form, fit and function for all makes and models, both foreign and domestic, at a value price. Autolite provides the automotive aftermarket and original equipment manufacturers with the highest quality ignition products and is the leading supplier of spark plugs.
Suggested Purchase Quantity: 8
- Most jobs typically require 8 of this item.
This item must be purchased in quantities of 4

This Part Fits the Following OEM/Substitute Numbers:

10, 121, 4000, 4323, 5029, ARF4

Additional Fitment Information:

Vehicle	Block	CC	Engine	CID
1975 - GMC K25	L	-	6 Cyl 4.8L	292

50 In Stock

$9.48 USD

$11.38 USD


Brand	Autolite
Part #	A77AP145
Condition	New
Warehouse	B

UPC: 009100256300

1975 GMC K25 Spark Plug 8 Cyl 5.7L Autolite

Autolite 685 Copper Resistor Spark Plug
OE Style with High Energy Ignition (HEI) ; .060 Gap
Copper Resistor Spark Plug
Product Attributes:
- Center Electrode Design: Standard / Regular
- Seat Type: Tapered
- Electrical Terminal Type: Stud
- Ground Electrode Tip Material: Nickel
- Center Electrode Core Material: Copper
- Resistor Type: Yes
- Insulator Material: Ceramic
- Hex Size: 5/8"
- Reach:
  - 0.433
  - 11.0
- Center Electrode Tip Material: Nickel
- Ground Electrode Tip Design: Tapered
- Insulator Type: Short
- Pre-Gap Size:
  - 0.060
  - 1.50
- Resistance: 5000
- Ground Electrode Core Material: Nickel
Autolite® Copper Spark Plugs are manufactured to deliver quick starts, improved fuel economy and smooth acceleration. Autolite® spark plugs are the best alternative to OE spark plugs, offering OE form, fit and function for all makes and models, both foreign and domestic, at a value price. Autolite provides the automotive aftermarket and Original Equipment manufacturers with the highest quality ignition products and is the leading supplier of spark plugs.
Suggested Purchase Quantity: 8
- Most jobs typically require 8 of this item.
This item must be purchased in quantities of 4