Home / Shop / Champion Copper Plus Spark Plugs 404 Plug, RN12YC, Plus, 14mm Thread, .750 in. Reach, Projected Tip, Resistor, Each

Champion Copper Plus Spark Plugs 404 Plug, RN12YC, Plus, 14mm Thread, .750 in. Reach, Projected Tip, Resistor, Each

SKU: CPN404

Spark Plugs

Champion Spark Plugs

Champion Copper Plus Spark Plugs 404 Plug, RN12YC, Plus, 14mm Thread, .750 in. Reach, Projected Tip, Resistor, Each

SKU: CPN404

Spark Plugs

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Description

Champion Copper Plus spark plugs have been original equipment on a wide variety of engines for many years. They feature nickel alloy centers and ground electrodes with efficient wear characteristics. In addition, the spark plugs' extrusion of copper into the center electrode allows for increased conductivity and heat control. Manufacturers have used them in non-automotive applications, such as lawn and garden and other power equipment. Replace your old plugs with Champion Copper Plus spark plugs for maximum reliability.

Part Type

404 Spark Plug

Data: v4.2 - Upd: 2026-10-11 21:36:53

Specifications

Product Attributes - Brand: Champion Spark Plugs
Product Attributes - Manufacturer's Part Number: 404
Product Attributes - Part Type: Spark Plugs
Product Attributes - Product Line: Champion Copper Plus Spark Plugs
Product Attributes - UPC: 037551000180
Product Attributes - Spark Plug Thread Size: 14mm
Product Attributes - Spark Plug Reach (in.): 0.750 in.
Product Attributes - Spark Plug Reach (mm): 19.05mm
Product Attributes - Shorty Spark Plug: No
Product Attributes - Resistor: Yes
Product Attributes - Electrode Tip Material: Nickel copper alloy
Product Attributes - Electrode Core Material: Nickel copper alloy
Product Attributes - Center Electrode Type: Projected
Product Attributes - Spark Plug Seat Style: Gasket
Product Attributes - Wrench Diameter: 13/16 in.
Product Attributes - Ground Strap Quantity: One
Product Attributes - Quantity: Sold individually.

Reference Information

Brand Name/s	Champion Spark Plugs
StreetFX SKU	cpn404
SFX Item ID	5208501
Supplier Item Code	5208501
Manufacturer SKU	404
Manufacturer UPC	37551000180
Alternative References	CHPRN12YC, RN12YC, 14mm

Compatibility

Application Data

Make	AC
Model	ACE
Submodel	BASE
Beginning Year	1962
Ending Year	1963
Engine Type	L6
Liter	2.6
CID	156
CC	2553
Engine Family	FORD EUROPE L6 GAS
Engine Size	2.6L/156
Extended Application Information	Gap 0.020 (in)
Application Notes	Copper Plus
Fuel Type	GAS
Region	USA

Make	AC
Model	ACECA
Submodel	BASE
Beginning Year	1962
Ending Year	1963
Engine Type	L6
Liter	2.6
CID	156
CC	2553
Engine Family	FORD EUROPE L6 GAS
Engine Size	2.6L/156
Extended Application Information	Gap 0.020 (in)
Application Notes	Copper Plus
Fuel Type	GAS
Region	USA

Make	AMERICAN MOTORS
Model	AMERICAN
Submodel	220
Beginning Year	1966
Ending Year	1966
Engine Type	V8
Liter	4.7
CID	290
CC	4753
Engine Family	AMC V8 GAS
Engine Size	4.7L/290
Extended Application Information	Gap 0.035 (in)
Application Notes	Copper Plus
Engine VIN Code	C
Fuel Type	GAS
Region	USA

Make	AMERICAN MOTORS
Model	AMERICAN
Submodel	220
Beginning Year	1966
Ending Year	1966
Engine Type	V8
Liter	4.7
CID	290
CC	4753
Engine Family	AMC V8 GAS
Engine Size	4.7L/290
Extended Application Information	Gap 0.035 (in)
Application Notes	Copper Plus
Engine VIN Code	D
Fuel Type	GAS
Region	USA

Make	AMERICAN MOTORS
Model	AMERICAN
Submodel	ROGUE
Beginning Year	1966
Ending Year	1966
Engine Type	V8
Liter	4.7
CID	290
CC	4753
Engine Family	AMC V8 GAS
Engine Size	4.7L/290
Extended Application Information	Gap 0.035 (in)
Application Notes	Copper Plus
Engine VIN Code	C
Fuel Type	GAS
Region	USA

Make	AMERICAN MOTORS
Model	AMERICAN
Submodel	ROGUE
Beginning Year	1966
Ending Year	1966
Engine Type	V8
Liter	4.7
CID	290
CC	4753
Engine Family	AMC V8 GAS
Engine Size	4.7L/290
Extended Application Information	Gap 0.035 (in)
Application Notes	Copper Plus
Engine VIN Code	D
Fuel Type	GAS
Region	USA

Make	AMERICAN MOTORS
Model	ROGUE
Submodel	BASE
Beginning Year	1966
Ending Year	1966
Engine Type	V8
Liter	4.7
CID	290
CC	4753
Engine Family	AMC V8 GAS
Engine Size	4.7L/290
Extended Application Information	Gap 0.035 (in)
Application Notes	Copper Plus
Engine VIN Code	H
Fuel Type	GAS
Region	USA

Make	AMERICAN MOTORS
Model	ROGUE
Submodel	BASE
Beginning Year	1966
Ending Year	1966
Engine Type	V8
Liter	4.7
CID	290
CC	4753
Engine Family	AMC V8 GAS
Engine Size	4.7L/290
Extended Application Information	Gap 0.035 (in)
Application Notes	Copper Plus
Engine VIN Code	N
Fuel Type	GAS
Region	USA

Make	ASTON MARTIN
Model	LAGONDA
Submodel	BASE
Beginning Year	1979
Ending Year	1982
Engine Type	V8
Liter	5.3
CID	326
CC	5340
Engine Family	Aston Martin V8
Engine Size	5.3L/326
Extended Application Information	Gap 0.035 (in)
Application Notes	CARB; Copper Plus
Fuel Type	GAS
Region	USA

Make	ASTON MARTIN
Model	V-8
Submodel	BASE
Beginning Year	1979
Ending Year	1982
Engine Type	V8
Liter	5.3
CID	326
CC	5340
Engine Family	Aston Martin V8
Engine Size	5.3L/326
Extended Application Information	Gap 0.035 (in)
Application Notes	CARB; Copper Plus
Fuel Type	GAS
Region	USA

Make	ASTON MARTIN
Model	V-8
Submodel	VANTAGE
Beginning Year	1979
Ending Year	1982
Engine Type	V8
Liter	5.3
CID	326
CC	5340
Engine Family	Aston Martin V8
Engine Size	5.3L/326
Extended Application Information	Gap 0.035 (in)
Application Notes	CARB; Copper Plus
Fuel Type	GAS
Region	USA

Make	ASTON MARTIN
Model	V-8
Submodel	VOLANTE
Beginning Year	1979
Ending Year	1982
Engine Type	V8
Liter	5.3
CID	326
CC	5340
Engine Family	Aston Martin V8
Engine Size	5.3L/326
Extended Application Information	Gap 0.035 (in)
Application Notes	CARB; Copper Plus
Fuel Type	GAS
Region	USA

Make	AUDI
Model	4000
Submodel	BASE
Beginning Year	1980
Ending Year	1980
Engine Type	L4
Liter	1.6
CID	97
CC	1588
Engine Family	VOLKSWAGEN L4 GAS
Engine Size	1.6L/97
Extended Application Information	Gap 0.028 (in)
Application Notes	GAS; Copper Plus
Fuel Type	GAS
Region	USA

Make	AUDI
Model	4000
Submodel	BASE
Beginning Year	1980
Ending Year	1980
Engine Type	L4
Liter	1.6
CID	97
CC	1588
Engine Family	VOLKSWAGEN L4 GAS
Engine Size	1.6L/97
Extended Application Information	Gap 0.028 (in)
Application Notes	GAS; Copper Plus
Fuel Type	GAS
Region	USA

Make	AUDI
Model	FOX
Submodel	BASE
Beginning Year	1973
Ending Year	1973
Engine Type	L4
Liter	1.5
CID	90
CC	1471
Engine Family	VOLKSWAGEN L4 GAS
Engine Size	1.5L/90
Extended Application Information	Gap 0.028 (in)
Application Notes	Copper Plus
Fuel Type	GAS
Region	USA

Make	AUDI
Model	FOX
Submodel	BASE
Beginning Year	1973
Ending Year	1973
Engine Type	L4
Liter	1.5
CID	90
CC	1471
Engine Family	VOLKSWAGEN L4 GAS
Engine Size	1.5L/90
Extended Application Information	Gap 0.028 (in)
Application Notes	Copper Plus
Fuel Type	GAS
Region	USA

Make	AUDI
Model	FOX
Submodel	BASE
Beginning Year	1974
Ending Year	1974
Engine Type	L4
Liter	1.5
CID	90
CC	1471
Engine Family	VOLKSWAGEN L4 GAS
Engine Size	1.5L/90
Extended Application Information	Gap 0.028 (in)
Application Notes	Copper Plus
Fuel Type	GAS
Region	USA

Make	AUDI
Model	FOX
Submodel	BASE
Beginning Year	1974
Ending Year	1974
Engine Type	L4
Liter	1.5
CID	90
CC	1471
Engine Family	VOLKSWAGEN L4 GAS
Engine Size	1.5L/90
Extended Application Information	Gap 0.028 (in)
Application Notes	Copper Plus
Fuel Type	GAS
Region	USA

Make	AUDI
Model	FOX
Submodel	BASE
Beginning Year	1974
Ending Year	1974
Engine Type	L4
Liter	1.5
CID	90
CC	1471
Engine Family	VOLKSWAGEN L4 GAS
Engine Size	1.5L/90
Extended Application Information	Gap 0.028 (in)
Application Notes	Copper Plus
Fuel Type	GAS
Region	USA

Make	AUDI
Model	FOX
Submodel	BASE
Beginning Year	1974
Ending Year	1974
Engine Type	L4
Liter	1.5
CID	90
CC	1471
Engine Family	VOLKSWAGEN L4 GAS
Engine Size	1.5L/90
Extended Application Information	Gap 0.028 (in)
Application Notes	Copper Plus
Fuel Type	GAS
Region	USA

Make	AUDI
Model	FOX
Submodel	BASE
Beginning Year	1975
Ending Year	1979
Engine Type	L4
Liter	1.6
CID	97
CC	1588
Engine Family	VOLKSWAGEN L4 GAS
Engine Size	1.6L/97
Extended Application Information	Gap 0.028 (in)
Application Notes	Copper Plus
Fuel Type	GAS
Region	USA

Make	AUDI
Model	FOX
Submodel	BASE
Beginning Year	1975
Ending Year	1979
Engine Type	L4
Liter	1.6
CID	97
CC	1588
Engine Family	VOLKSWAGEN L4 GAS
Engine Size	1.6L/97
Extended Application Information	Gap 0.028 (in)
Application Notes	Copper Plus
Fuel Type	GAS
Region	USA

Make	AUDI
Model	FOX
Submodel	BASE
Beginning Year	1976
Ending Year	1976
Engine Type	L4
Liter	1.6
CID	97
CC	1588
Engine Family	VOLKSWAGEN L4 GAS
Engine Size	1.6L/97
Extended Application Information	Gap 0.028 (in)
Application Notes	Copper Plus
Fuel Type	GAS
Region	USA

Make	AUSTIN HEALEY
Model	3000
Submodel	BASE
Beginning Year	1959
Ending Year	1961
Engine Type	L6
Liter	2.9
CID	178
CC	2912
Engine Family	BMC L6 GAS
Engine Size	2.9L/178
Extended Application Information	Gap 0.028 (in)
Application Notes	Copper Plus
Fuel Type	GAS
Region	USA

Make	AUSTIN HEALEY
Model	3000
Submodel	BASE
Beginning Year	1959
Ending Year	1967
Engine Type	L6
Liter	2.9
CID	178
CC	2912
Engine Family	BMC L6 GAS
Engine Size	2.9L/178
Extended Application Information	Gap 0.028 (in)
Application Notes	Copper Plus
Fuel Type	GAS
Region	USA

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Champion Copper Plus Spark Plugs 404 Plug, RN12YC, Plus, 14mm Thread, .750 in. Reach, Projected Tip, Resistor, Each

Champion Copper Plus Spark Plugs 404 Plug, RN12YC, Plus, 14mm Thread, .750 in. Reach, Projected Tip, Resistor, Each

Description

Part Type

Specifications

Reference Information

Compatibility

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