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Commercial Chassis DeVille Eldorado Fleetwood Seville

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1978 Cadillac Seville Spark Plug 8 Cyl 5.7L Autolite

Autolite 847 Copper Spark Plug
OE Style; Auto
Copper Spark Plug
Product Attributes:
- Center Electrode Insulator Tip Projection:
  - 0.133
  - 3.38
- Washer Included: Yes
- Electrical Terminal Type: Non-removable Nut
- Grade Type: Regular
- Core Nose Length:
  - 0.775
  - 19.69
- Washer Type: Flat
- Ground Electrode Tip Material: Nickel
- Skirt: Yes
- Center Electrode Core Material: Copper
- Hex Type: Hex
- Resistor Type: Yes
- Indexed: No
- Ground Electrode Tip Design: Standard
- Pre-Gap Size:
  - 0.07
  - 1.78
- Ground Electrode Core Material: Nickel
- Center Electrode Projection: Mid Projection
- Seat Type: Flat
- Ground Electrode Quantity: 1
- Insulator Material: Ceramic
- Hex Size: 13/16
- Reach:
  - 0.374
  - 9.5
- Center Electrode Tip Material: Nickel
- Skirt Length:
  - 0.514
  - 13.06
- Manufacturer Heat Range: 5
- Resistance: 5000
- Insulator Height:
  - 2.464
  - 62.59
Features:
- The copper core center electrode aids in thermal control and improves resistance to fouling.
- Its specially engineered high nickel alloy center and ground electrode provides extended life.
- The high alumina multi-rib ceramic insulator provides thermal conductivity and superior insulation for increased strength.
- Designed with a nickel-plated shell that is corrosion resistant to provide increased durability for extended periods.
Autolite® Copper spark plugs are engineered to deliver quick starts and the power your vehicle or applications needs to meet performance expectations.
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:

198, 498, 5613882, 66, 8129858, AR82-6, AR82-8, AS82-7, AS827, R46SZ, RJ18YC6, W9PR-U20, WR10FCY, WR10FCZ, WR10FCZ+

Additional Fitment Information:

Vehicle	Block	CC	Engine	Engine VIN	CID
1978 - Cadillac Seville	V	-	8 Cyl 5.7L	B	350

50 In Stock

Limited-Time Offer

$6.60 USD

$7.92 USD


Brand	Autolite
Part #	A77847
Condition	New
Warehouse	B

UPC: 009100008473

1978 Cadillac Seville Spark Plug 8 Cyl 5.7L Autolite

Autolite 847 Copper Spark Plug
Gap .060 (in); Auto
Copper Spark Plug
Product Attributes:
- Center Electrode Insulator Tip Projection:
  - 0.133
  - 3.38
- Washer Included: Yes
- Electrical Terminal Type: Non-removable Nut
- Grade Type: Regular
- Core Nose Length:
  - 0.775
  - 19.69
- Washer Type: Flat
- Ground Electrode Tip Material: Nickel
- Skirt: Yes
- Center Electrode Core Material: Copper
- Hex Type: Hex
- Resistor Type: Yes
- Indexed: No
- Ground Electrode Tip Design: Standard
- Pre-Gap Size:
  - 0.07
  - 1.78
- Ground Electrode Core Material: Nickel
- Center Electrode Projection: Mid Projection
- Seat Type: Flat
- Ground Electrode Quantity: 1
- Insulator Material: Ceramic
- Hex Size: 13/16
- Reach:
  - 0.374
  - 9.5
- Center Electrode Tip Material: Nickel
- Skirt Length:
  - 0.514
  - 13.06
- Manufacturer Heat Range: 5
- Resistance: 5000
- Insulator Height:
  - 2.464
  - 62.59
Features:
- The copper core center electrode aids in thermal control and improves resistance to fouling.
- Its specially engineered high nickel alloy center and ground electrode provides extended life.
- The high alumina multi-rib ceramic insulator provides thermal conductivity and superior insulation for increased strength.
- Designed with a nickel-plated shell that is corrosion resistant to provide increased durability for extended periods.
Autolite® Copper spark plugs are engineered to deliver quick starts and the power your vehicle or applications needs to meet performance expectations.
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	Engine VIN	CID
1978 - Cadillac Seville	V	-	8 Cyl 5.7L	B	350

50 In Stock

Limited-Time Offer

$6.60 USD

$7.92 USD


Brand	Autolite
Part #	A77847
Condition	New
Warehouse	B

UPC: 009100008473

1978 Cadillac Fleetwood Spark Plug 8 Cyl 7.0L Autolite

Autolite APP646 Double Platinum Spark Plug
Gap .060 (in)
Double Platinum Spark Plug
Product Attributes:
- Center Electrode Projection: Mid Projection
- Center Electrode Insulator Tip Projection:
  - 0.133
  - 3.38
- Seat Type: Flat
- Washer Included: Yes
- Electrical Terminal Type: Non-removable Nut
- Ground Electrode Quantity: 1
- Grade Type: Performance
- Core Nose Length:
  - 0.934
  - 23.72
- Washer Type: Crush
- Ground Electrode Tip Material: Platinum
- Center Electrode Core Material: Copper
- Hex Type: Hex
- Resistor Type: Yes
- Insulator Material: Ceramic
- Indexed: No
- Hex Size: 13/16
- Reach:
  - 0.75
  - 19.05
- Center Electrode Tip Material: Platinum
- Ground Electrode Tip Design: Standard
- Pre-Gap Size:
  - 0.05
  - 1.27
- Resistance: 4000
- Insulator Height:
  - 2.224
  - 56.49
Features:
- Engineered with a platinum-to-platinum design that prevents gap erosion, extending the life of the spark plug.
- The yttrium-Enhanced Ground Electrode delivers superior heat transfer that delivers more durability under high temps and pressure for greater life.
- Its high alumina ceramic insulator provides optimum thermal conductivity and dielectric strength.
- The multi-rib insulator prevents flash-over.
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.
Suggested Purchase Quantity: 6
- Most jobs typically require 6 of this item.
This item must be purchased in quantities of 4

This Part Fits the Following OEM/Substitute Numbers:

31, 41-819, 4727114, RN14PMP5, RN14PYP, SPRN14PMP5

Additional Fitment Information:

Vehicle	Block	CC	Engine	CID
1978 - Cadillac Fleetwood	V	-	8 Cyl 7.0L	425

4 In Stock

Limited-Time Offer

$9.65 USD

$11.58 USD


Brand	Autolite
Part #	A77APP646
Condition	New
Warehouse	B

UPC: 009100005397

1978 Cadillac Eldorado Spark Plug 8 Cyl 7.0L Autolite

Autolite 646 Copper Spark Plug
OE Style; Auto
Copper Spark Plug
Product Attributes:
- Center Electrode Projection: Mid Projection
- Center Electrode Insulator Tip Projection:
  - 0.133
  - 3.38
- Seat Type: Flat
- Washer Included: Yes
- Electrical Terminal Type: Non-removable Nut
- Ground Electrode Quantity: 1
- Grade Type: Regular
- Core Nose Length:
  - 0.934
  - 23.72
- Washer Type: Flat
- Ground Electrode Tip Material: Nickel
- Center Electrode Core Material: Copper
- Hex Type: Hex
- Resistor Type: Yes
- Insulator Material: Ceramic
- Indexed: No
- Hex Size: 13/16
- Reach:
  - 0.75
  - 19.05
- Center Electrode Tip Material: Nickel
- Ground Electrode Tip Design: Standard
- Pre-Gap Size:
  - 0.05
  - 1.27
- Resistance: 4000
- Insulator Height:
  - 2.224
  - 56.49
Features:
- The copper core center electrode aids in thermal control and improves resistance to fouling.
- Its specially engineered high nickel alloy center and ground electrode provides extended life.
- The high alumina multi-rib ceramic insulator provides thermal conductivity and superior insulation for increased strength.
- Designed with a nickel-plated shell that is corrosion resistant to provide increased durability for extended periods.
Autolite® Copper spark plugs are engineered to deliver quick starts and the power your vehicle or applications needs to meet performance expectations.
Suggested Purchase Quantity: 6
- Most jobs typically require 6 of this item.
This item must be purchased in quantities of 4

This Part Fits the Following OEM/Substitute Numbers:

117, 25312033, 3015, 31, 32721, 4012, 41-618, 4686083, 5613932, 5613946, 5614128, 7522, 7922, AGR52-6, AGS52C-6, AGS52C6, BP5ES-13, C95R6...VIEW MORE

Additional Fitment Information:

Vehicle	Block	CC	Engine	CID
1978 - Cadillac Eldorado	V	-	8 Cyl 7.0L	425

50 In Stock

Limited-Time Offer

$5.85 USD

$7.02 USD


Brand	Autolite
Part #	A77646
Condition	New
Warehouse	B

UPC: 009100006462

1978 Cadillac Fleetwood Spark Plug 8 Cyl 7.0L Autolite

Autolite 646 Copper Spark Plug
Gap .060 (in); Auto
Copper Spark Plug
Product Attributes:
- Center Electrode Projection: Mid Projection
- Center Electrode Insulator Tip Projection:
  - 0.133
  - 3.38
- Seat Type: Flat
- Washer Included: Yes
- Electrical Terminal Type: Non-removable Nut
- Ground Electrode Quantity: 1
- Grade Type: Regular
- Core Nose Length:
  - 0.934
  - 23.72
- Washer Type: Flat
- Ground Electrode Tip Material: Nickel
- Center Electrode Core Material: Copper
- Hex Type: Hex
- Resistor Type: Yes
- Insulator Material: Ceramic
- Indexed: No
- Hex Size: 13/16
- Reach:
  - 0.75
  - 19.05
- Center Electrode Tip Material: Nickel
- Ground Electrode Tip Design: Standard
- Pre-Gap Size:
  - 0.05
  - 1.27
- Resistance: 4000
- Insulator Height:
  - 2.224
  - 56.49
Features:
- The copper core center electrode aids in thermal control and improves resistance to fouling.
- Its specially engineered high nickel alloy center and ground electrode provides extended life.
- The high alumina multi-rib ceramic insulator provides thermal conductivity and superior insulation for increased strength.
- Designed with a nickel-plated shell that is corrosion resistant to provide increased durability for extended periods.
Autolite® Copper spark plugs are engineered to deliver quick starts and the power your vehicle or applications needs to meet performance expectations.
Suggested Purchase Quantity: 6
- Most jobs typically require 6 of this item.
This item must be purchased in quantities of 4

Additional Fitment Information:

Vehicle	Block	CC	Engine	CID
1978 - Cadillac Fleetwood	V	-	8 Cyl 7.0L	425

50 In Stock

Limited-Time Offer

$5.85 USD

$7.02 USD


Brand	Autolite
Part #	A77646
Condition	New
Warehouse	B

UPC: 009100006462

1978 Cadillac Eldorado Spark Plug 8 Cyl 7.0L Autolite

Autolite AP646 Platinum Spark Plug
Gap .060 (in)
Platinum Spark Plug
Product Attributes:
- Center Electrode Projection: Mid Projection
- Center Electrode Insulator Tip Projection:
  - 0.133
  - 3.38
- Seat Type: Flat
- Washer Included: Yes
- Electrical Terminal Type: Non-removable Nut
- Ground Electrode Quantity: 1
- Grade Type: Performance
- Core Nose Length:
  - 0.934
  - 23.72
- Washer Type: Crush
- Ground Electrode Tip Material: Nickel
- Center Electrode Core Material: Copper
- Hex Type: Hex
- Resistor Type: Yes
- Insulator Material: Ceramic
- Indexed: No
- Hex Size: 13/16
- Reach:
  - 0.75
  - 19.05
- Center Electrode Tip Material: Platinum
- Ground Electrode Tip Design: Standard
- Pre-Gap Size:
  - 0.05
  - 1.27
- Resistance: 4000
- Insulator Height:
  - 2.224
  - 56.49
Features:
- 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.
- Designed with a nickel-plated shell that is corrosion resistant to provide increased durability for extended life.
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.
Suggested Purchase Quantity: 6
- Most jobs typically require 6 of this item.
This item must be purchased in quantities of 4