NGK Authorized Dealer

Iridium IX Spark Plug: Single Iridium Fine Wire, UR4IX

Part Number 7401 (132648891)

UPC: 87295174012

Package contents: 1 Each per Box

Select vehicle for guaranteed fit

$9.09

In stockShips by 29th Oct

Description

NGK Iridium IX spark plugs are specifically designed for the performance enthusiast. Iridium IX provides outstanding acceleration, high fuel efficiency and durability. NGK Iridium IX plugs offer extreme ignitability and exceptional anti-fouling. Tapered cut ground electrode provides improved starting, idling and throttle response. The Iridium fine wire center electrode's durability is six times harder than platinum. Iridium alloy's extremely high melting point is perfect for today's engines. For even greater performance consider upgrading to an NGK Ruthenium HX plug.

Fitment

This part fits the following vehicles.

1980 Buick Century
1991 Buick Commercial Chassis
1980 Buick LeSabre
1980-1981, 1984-1987 Buick Regal
1980-1981, 1984-1985 Buick Riviera
1991 Buick Roadmaster
1991-1992 Cadillac Brougham
1993 Cadillac Commercial Chassis
1993 Cadillac Fleetwood
1980-1986 Chevrolet C10
1980-1986 Chevrolet C10 Suburban
1980-1986 Chevrolet C20
1980-1986 Chevrolet C20 Suburban
1980-1984 Chevrolet C30
1980-1992 Chevrolet Camaro
1980-1993 Chevrolet Caprice
1980-1982, 1984, 1988-1991 Chevrolet Corvette
1980-1985, 1987 Chevrolet El Camino
1980-1984 Chevrolet G10
1980-1984 Chevrolet G20
1980-1984 Chevrolet G30
1980-1985 Chevrolet Impala
1980-1986 Chevrolet K10
1980-1983, 1986 Chevrolet K10 Suburban
1980-1985 Chevrolet K20
1980-1986 Chevrolet K20 Suburban
1980, 1982-1984 Chevrolet K30
1980-1986 Chevrolet K5 Blazer
1980-1983 Chevrolet Malibu
1980-1988 Chevrolet Monte Carlo
1980-1984 Chevrolet P20
1980-1984 Chevrolet P30
1980-1983 Chrysler Cordoba
1983 Chrysler Fifth Avenue
1980-1981 Chrysler LeBaron
1980-1981 Chrysler Newport
1982 Chrysler New Yorker
1980-1981 Chrysler Town & Country
1980 Dodge Aspen
1980 Dodge B100
1981-1987 Dodge B150
1980 Dodge B200
1981-1987 Dodge B250
1980 Dodge B300
1984-1987 Dodge D100
1980-1987 Dodge D150
1980 Dodge D200
1981-1987 Dodge D250
1980-1983 Dodge Diplomat
1980-1983 Dodge Mirada
1980 Dodge Ramcharger
1980-1981 Dodge St. Regis
1984-1987 Dodge W100
1980-1987 Dodge W150
1980 Dodge W200
1981-1982 Dodge W250
1982 Dodge W350
1980-1988 Ford Bronco
1980-1983 Ford E-100 Econoline
1980-1983 Ford E-100 Econoline Club Wagon
1980-1988 Ford E-150 Econoline
1980-1985 Ford E-150 Econoline Club Wagon
1980-1988 Ford E-250 Econoline
1980-1991 Ford E-250 Econoline Club Wagon
1980-1996 Ford E-350 Econoline
1980-1996 Ford E-350 Econoline Club Wagon
1981-1982 Ford F-100
1980-1988 Ford F-150
1980-1996 Ford F-250
1980-1996 Ford F-350
1981-1986 Ford LTD
1987-1991 Ford LTD Crown Victoria
1984-1985 Ford Mustang
1980-1986 GMC C1500
1980-1986 GMC C1500 Suburban
1980-1986 GMC C2500
1980-1986 GMC C2500 Suburban
1980, 1982-1984, 1986 GMC C3500
1980-1987 GMC Caballero
1980-1984 GMC G1500
1980-1984 GMC G2500
1980-1984 GMC G3500
1980-1983, 1985-1986 GMC Jimmy
1980-1986 GMC K1500
1980-1984 GMC K1500 Suburban
1980-1985 GMC K2500
1980-1984 GMC K2500 Suburban
1980-1984 GMC K3500
1980-1984 GMC P2500
1980-1984 GMC P3500
1984-1985 Mercury Capri
1986 Mercury Grand Marquis
1991-1992 Oldsmobile Custom Cruiser
1980 Oldsmobile Cutlass
1980 Oldsmobile Cutlass Calais
1980, 1982 Oldsmobile Cutlass Cruiser
1980 Oldsmobile Cutlass Salon
1980 Oldsmobile Cutlass Supreme
1980-1983 Plymouth Gran Fury
1980 Plymouth PB100

Showing 100 of 112 vehicles. Use the fit check above to see whether this part fits yours.

Features & benefits

RECOMMENDED USAGE: Modified or high performance applications, or as an upgrade to OE nickel alloy spark plugs
Pure alumina silicate ceramic insulator provides superior strength and better heat transfer
Special insulator nose configurations improve throttle response
Corrugated ribs prevent flashover
Copper core aids in heat removal
Triple seals prevent leakage
SOLID COPPER CORE: 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges
TAPERED CUT GROUND ELECTRODE: Reduced quenching design produces outstanding ignitability, improved acceleration, fuel efficiency and durability
SINGLE IRIDIUM TIP: Fine wire 0.6 millimeter iridium tip center electrode ensures high durability and a consistently stable spark
TRIVALENT METAL PLATING: Delivers superior anti-corrosion and anti-seizing properties, ensuring ease of installation and removal
IRIDIUM ALLOY CENTER ELECTRODE: Iridium's density (6x that of platinum) and extremely high melting point is perfect for modern high efficiency engines

Specifications

Center Electrode Core Material	Copper
Center Electrode Design	Fine Wire
Center Electrode Insulator Tip Projection	4.0 mm
Center Electrode Projection	Mid Projection
Center Electrode Tip Material	Iridium
Country Of Origin	JP
Electrical Terminal Type	Non-Removable Nut
Grade Type	Performance
Ground Configuration	J-Gap
Ground Electrode Core Material	Nickel
Ground Electrode Quantity	1
Ground Electrode Tip Design	Taper Cut
Ground Electrode Tip Material	Nickel
Hex Size	5/8" (16mm)
Insulator Height	55.5 mm
Insulator Material	Ceramic
Manufacturer Heat Range	4
Metallurgy	Single Iridium
Part Number	UR4IX
Pre-Gap Size	1.0 mm
Reach	11.2 mm
Resistance	5000.0 82
Resistor Type	Yes
Seat Type	Tapered
Service Number	UR4IX
Short Style Spark Plug	No
Skirt	No
Skirt Length	0.0 mm
Street Legal	Yes
Thread Size	M14 - 1.25
Thread Type Standard	Metric
Washer(s) Included	No

Warranty

2 Months

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)).