Iridium XP Spark Plug

Part Number XP646 (153445542)

UPC: 9100044648

Package contents: 1 Each per Each

Select vehicle for guaranteed fit

Replacement part for NGK Iridium IX Spark Plug: Single Iridium Fine Wire, GR5IX NGK Iridium Ix Spark Plug

$7.77

Out of stock

Description

Autolite® Iridium XP spark plugs are engineered with an iridium-enhanced fine-wire and a proprietary, platinum ground electrode, to increase durability*, while its tapered ground wire maximizes engine efficiency, delivering improved engine performance, fuel efficiency, acceleration, and ignitability.

Fitment

This part fits the following vehicles.

1993 Asuna GT
1993 Asuna SE
1987-1988 Buick Skyhawk
1975-1976 Cadillac Calais
1975-1984 Cadillac Commercial Chassis
1975-1981 Cadillac DeVille
1975-1978, 1980-1981 Cadillac Eldorado
1975-1984 Cadillac Fleetwood
1980-1981 Cadillac Seville
1993-1996 Chrysler Concorde
1990-1993 Chrysler Dynasty
2000 Chrysler Grand Voyager
1990-1993 Chrysler Imperial
1993-1995, 1997 Chrysler Intrepid
1990-1993 Chrysler New Yorker
1990-2000 Chrysler Town & Country
2000 Chrysler Voyager
1990-2000 Dodge Caravan
1990-1993 Dodge Dynasty
1990-2000 Dodge Grand Caravan
1993-1997 Dodge Intrepid
1993-1997 Eagle Vision
1987-1988 Oldsmobile Firenza
1990-2000 Plymouth Grand Voyager
1991-2000 Plymouth Voyager
1988-1989, 1993 Pontiac LeMans
1988-1989 Pontiac Optima
1987-1988 Pontiac Sunbird

Features & benefits

Engineered with an Iridium-enhanced center electrode and fine-wire design that increases ignitability and provides a more focused ignition for improved engine performance.
Its proprietary platinum ground electrode provides increased durability* and resistance to wear, extending the life of the plug.
The tapered ground wire improves engine ignitability.
Its high alumina multi-rib ceramic insulator provides thermal conductivity and superior insulation for increased strength while preventing flash-over.
Designed with a nickel-plated shell that is corrosion resistant to provide increased durability for extended periods.
Includes a lifetime limited warranty that guarantees optimum performance equal to OE designed plugs.

Specifications

Center Electrode Core Material	Copper
Center Electrode Design	Fine Wire
Center Electrode Projection	Mid Projection
Center Electrode Tip Material	Iridium
Country Of Origin	MX
Electrical Terminal Type	Non-Removable Nut
Grade Type	Performance
Ground Electrode Core Material	Nickel
Ground Electrode Quantity	1
Ground Electrode Tip Design	Taper Cut
Ground Electrode Tip Material	Platinum
Hex Size	13/16 in
Hex Type	Hex
Indexed	No
Insulator Material	Ceramic
Manufacturer Heat Range	8
Pre-Gap Size	1.3 mm
Resistance	4000 82
Resistor Type	Yes
Seat Type	Flat
Skirt	No
Street Legal	Yes
Thread Diameter	14 mm
Thread Size	M14 - 1.25
Thread Type Standard	Metric
Washer Type	Crush
Washer(s) Included	Yes

Magnuson-Moss Warranty Act

Legally, a vehicle manufacturer cannot void the warranty on a vehicle due to an aftermarket part unless they can prove that the aftermarket part caused or contributed to the failure in the vehicle (per the Magnuson Moss Warranty Act (15 U.S.C. 2302(C)).