Reliable ignition performance for various vehicles
The Autolite Spark Plug 403 is engineered to provide exceptional ignition performance for a wide range of vehicles, including Japanese, European, and Korean models. With over a century of experience in the automotive industry, Autolite ensures that each spark plug meets or exceeds original equipment (OE) quality standards, making it a trusted choice for both aftermarket and OEM applications.
Features
- Copper-glass seal bonds the insulator and terminal post center electrode, ensuring full voltage at the spark gap with a gas-tight seal that is 100 percent leak-proof
- Multi-rib insulator minimizes the risk of "flash-over"
- One-piece terminal post enhances strength and durability
- Cold-formed steel shell with precision rolled threads for reliable installation
- Full copper core electrode delivers improved performance in all conditions
- Designed to provide quick starts, good fuel economy, and smooth acceleration
- Resistor included to reduce radio frequency interference (RFI) and electrode erosion
Specifications
- Manufacturer: Autolite Spark Plugs
- Manufacturer Part Number: 403
- Resistor: Yes
- Electrode Type: OEM
- Electrode Core Material: Copper
- Electrode Tip Material: Nickel Alloy
- Insulator Type: Non-Projected
- Thread Size (IN): 0.551 Inch
- Quantity: Single
- Reach: 3/4 Inch
- Seat Type: Gasket
- Wrench Diameter: 13/16 Inch
Compatibility/Fit
- 1958-1958 Alfa Romeo 1900
- 1957-1957 Alfa Romeo 1900C
- 1962-1962 Alfa Romeo 2000
- 1975-1977 Alfa Romeo Alfetta
- 1968-1968 Alfa Romeo Duetto 1600
- 1964-1964 Alfa Romeo Giulia
- 1967-1968 Alfa Romeo Giulia
- 1967-1968 Alfa Romeo GTV
- 1975-1978 Alfa Romeo Spider
- 1978-1978 Alfa Romeo Sport
- 1977-1978 Alfa Romeo Sprint
- 1963-1966 Alvis TE21
- 1961-1963 BMW 2600
- 1961-1963 BMW 3200
- 1964-1965 BMW 3200CS
- 1952-1955 BMW 501
- 1954-1955 BMW 501A
- 1954-1955 BMW 501B
- 1954-1961 BMW 502
- 1956-1960 BMW 503
- 1956-1960 BMW 507
- 1959-1965 BMW Isetta
- 1965-1965 Chevrolet Bel Air
- 1965-1965 Chevrolet Biscayne
- 1960-1961 Chevrolet C10 Pickup
- 1968-1968 Chevrolet C10 Pickup
- 1968-1968 Chevrolet C10 Suburban
- 1960-1961 Chevrolet C20 Pickup
- 1968-1968 Chevrolet C20 Pickup
- 1968-1968 Chevrolet C20 Suburban
- 1960-1961 Chevrolet C30 Pickup
- 1968-1968 Chevrolet C30 Pickup
- 1970-1970 Chevrolet Chevelle
- 1965-1968 Chevrolet Corvette
- 1970-1970 Chevrolet Corvette
- 1959-1960 Chevrolet El Camino
- 1966-1966 Chevrolet El Camino
- 1965-1965 Chevrolet Impala
- 1960-1961 Chevrolet K10 Pickup
- 1968-1968 Chevrolet K10 Pickup
- 1968-1968 Chevrolet K10 Suburban
- 1960-1961 Chevrolet K20 Pickup
- 1968-1968 Chevrolet K20 Pickup
- 1968-1968 Chevrolet K20 Suburban
- 1968-1968 Chevrolet K30 Pickup
- 1965-1965 Chevrolet Malibu
- 1970-1970 Chevrolet Monte Carlo
- 1970-1970 Chevrolet Nova
- 1960-1961 Chevrolet P20 Series
- 1960-1965 Chevrolet P30 Series
- 1958-1958 Chevrolet Sedan Delivery
- 1960-1961 Chevrolet Suburban
- 1958-1958 Chevrolet Truck
- 1960-1960 Chevrolet Truck
- 1955-1957 Deutsch-Bonnet 750
- 1957-1961 Deutsch-Bonnet 850
- 1954-1955 Dodge C-1 Truck
- 1955-1956 Dodge C-3
- 1956-1956 Dodge C-4
- 1957-1959 Dodge D100 Pickup
- 1957-1959 Dodge D200 Pickup
- 1957-1959 Dodge D300 Pickup
- 1958-1959 Dodge P300 Series
- 1958-1959 Dodge P310 Series
- 1958-1959 Dodge P320 Series
- 1954-1959 Dodge Truck
- 1957-1957 Dodge W100 Pickup
- 1959-1959 Dodge W100 Pickup
- 1957-1957 Dodge W200 Pickup
- 1959-1959 Dodge W200 Pickup
- 1957-1957 Dodge W300 Pickup
- 1959-1959 Dodge W300 Pickup
- 1958-1966 Elva Courier
- 1960-1960 Facel Vega Facellia
- 1950-1953 Ferrari 166
- 1950-1953 Ferrari 212
- 1954-1955 Ferrari 250 Europa
- 1954-1964 Ferrari 250 GT
- 1960-1961 Ferrari 250 GTE
- 1963-1963 Ferrari 250 LM
- 1951-1953 Ferrari 340 America
- 1951-1953 Ferrari 342 America
- 1964-1967 Ferrari 500 Superfast
- 1968-1968 GMC C15/C1500 Pickup
- 1968-1968 GMC C15/C1500 Suburban
- 1968-1968 GMC C25/C2500 Pickup
- 1968-1968 GMC C25/C2500 Suburban
- 1968-1968 GMC C35/C3500 Pickup
- 1968-1968 GMC K15/K1500 Pickup
- 1968-1968 GMC K15/K1500 Suburban
- 1968-1968 GMC K25/K2500 Pickup
- 1968-1968 GMC K25/K2500 Suburban
- 1968-1968 GMC K35/K3500 Pickup
- 1979-1983 Honda Accord
- 1980-1980 Honda Civic
- 1979-1982 Honda Prelude
- 1948-1958 Land Rover Land Rover
- 1947-1950 MG YA
- 1951-1953 MG YB
- 1947-1950 MG YT
- 1972-1977 Porsche 911
- 1982-1984 Renault Fuego
- 1974-1974 Renault R17
- 1976-1979 Renault R17
- 1953-1957 Salmson 2300 Sport
- 1955-1955 Turner 803
- 1956-1966 Turner 950
- 1959-1966 Turner SPR60
- 1983-1988 Volkswagen Vanagon
- 1990-1991 Volkswagen Vanagon
Shipping & Returns
- This product ships to the US and Canada.
- This product typically ships within 1 to 3 business days.
- Returns are accepted within 30 days for items in like-new condition.