Autolite Spark Plug (MPN: 303)
Autolite Spark Plug (MPN: 303)
Autolite Spark Plug (MPN: 303)
Autolite Spark Plug (MPN: 303)
Autolite Spark Plug (MPN: 303)

Autolite Spark Plug (MPN: 303)

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  • $3.40
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High-Quality Ignition Solution for Optimal Engine Performance

The Autolite Spark Plug 303 is engineered to provide reliable ignition and enhanced performance for a variety of vehicles. With over a century of experience in the automotive industry, Autolite delivers products that meet or exceed original equipment specifications, ensuring efficient engine operation and longevity.

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 design minimizes the risk of "flash-over" for improved reliability.
  • One-piece terminal post construction enhances strength and durability.
  • Cold-formed steel shell with precision rolled threads for a secure fit.
  • Full copper core electrode optimizes performance across various conditions.
  • Designed to deliver quick starts, improved fuel economy, and smooth acceleration.
  • Resistor technology reduces radio frequency interference (RFI) and minimizes electrode erosion.

Specifications

  • Manufacturer: Autolite Spark Plugs
  • Manufacturer Part Number: 303
  • 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: 3/8 Inch
  • Seat Type: Gasket
  • Wrench Diameter: 13/16 Inch

Compatibility/Fit

  • 1954-1954 Chevrolet 1500
  • 1959-1959 Chevrolet 3B
  • 1959-1959 Chevrolet 3C
  • 1959-1959 Chevrolet 3D
  • 1959-1959 Chevrolet 3E
  • 1959-1959 Chevrolet 3F
  • 1959-1959 Chevrolet 3G
  • 1959-1960 Chevrolet Bel Air
  • 1946-1946 Chevrolet BK
  • 1969-1970 Chevrolet Blazer
  • 1960-1962 Chevrolet C10 Panel
  • 1960-1962 Chevrolet C10 Pickup
  • 1966-1970 Chevrolet C10 Pickup
  • 1967-1970 Chevrolet C10 Suburban
  • 1960-1962 Chevrolet C20 Pickup
  • 1966-1970 Chevrolet C20 Pickup
  • 1967-1970 Chevrolet C20 Suburban
  • 1960-1962 Chevrolet C30 Panel
  • 1960-1962 Chevrolet C30 Pickup
  • 1966-1970 Chevrolet C30 Pickup
  • 1953-1954 Chevrolet Corvette
  • 1964-1970 Chevrolet El Camino
  • 1970-1970 Chevrolet G10 Van
  • 1970-1970 Chevrolet G20 Van
  • 1970-1970 Chevrolet G30 Van
  • 1960-1962 Chevrolet K10 Pickup
  • 1966-1970 Chevrolet K10 Pickup
  • 1967-1970 Chevrolet K10 Suburban
  • 1967-1967 Chevrolet K20 Panel
  • 1960-1962 Chevrolet K20 Pickup
  • 1966-1970 Chevrolet K20 Pickup
  • 1967-1970 Chevrolet K20 Suburban
  • 1968-1969 Chevrolet K30 Pickup
  • 1960-1962 Chevrolet P10 Series
  • 1960-1962 Chevrolet P20 Series
  • 1970-1970 Chevrolet P20 Van
  • 1960-1962 Chevrolet P30 Series
  • 1970-1970 Chevrolet P30 Van
  • 1947-1951 Chevrolet Sedan Delivery
  • 1953-1958 Chevrolet Sedan Delivery
  • 1960-1962 Chevrolet Suburban
  • 1966-1966 Chevrolet Suburban
  • 1946-1958 Chevrolet Truck
  • 1960-1960 Chevrolet Truck
  • 1957-1959 Dodge Coronet
  • 1957-1958 Dodge Custom
  • 1953-1959 GMC 100
  • 1947-1949 GMC 100-22
  • 1953-1955 GMC 100-22
  • 1953-1954 GMC 100-24
  • 1960-1962 GMC 1000 Series
  • 1953-1959 GMC 150
  • 1947-1949 GMC 150-22
  • 1953-1955 GMC 150-22
  • 1953-1954 GMC 150-24
  • 1960-1962 GMC 1500 Series
  • 1953-1959 GMC 250
  • 1953-1955 GMC 250-22
  • 1953-1954 GMC 250-24
  • 1960-1962 GMC 2500 Series
  • 1953-1955 GMC 280-22
  • 1953-1959 GMC 300
  • 1953-1954 GMC 300-24
  • 1960-1962 GMC 3000
  • 1953-1954 GMC 350-24
  • 1953-1954 GMC 350-27
  • 1955-1959 GMC 350-8
  • 1960-1962 GMC 3500
  • 1953-1959 GMC 370
  • 1967-1970 GMC C15/C1500 Pickup
  • 1967-1970 GMC C15/C1500 Suburban
  • 1967-1970 GMC C25/C2500 Pickup
  • 1968-1970 GMC C25/C2500 Suburban
  • 1967-1970 GMC C35/C3500 Pickup
  • 1942-1947 GMC CC100
  • 1945-1947 GMC CC101
  • 1945-1947 GMC CC102
  • 1942-1947 GMC CC150
  • 1942-1947 GMC CC250
  • 1942-1942 GMC CC260
  • 1946-1947 GMC CC260
  • 1942-1942 GMC CC300
  • 1942-1947 GMC CCV100
  • 1942-1947 GMC CCX250
  • 1942-1947 GMC EC100
  • 1945-1947 GMC EC101
  • 1945-1947 GMC EC102
  • 1942-1947 GMC EC150
  • 1945-1947 GMC EC152
  • 1947-1947 GMC EC250
  • 1947-1947 GMC EC251
  • 1947-1947 GMC EC252
  • 1947-1947 GMC EC280
  • 1947-1947 GMC EC282
  • 1947-1947 GMC EC283
  • 1946-1946 GMC EC350
  • 1947-1949 GMC EF241
  • 1948-1949 GMC EF242
  • 1946-1946 GMC EF350
  • 1947-1949 GMC FC100
  • 1947-1949 GMC FC101
  • 1947-1949 GMC FC102
  • 1947-1949 GMC FC150
  • 1947-1949 GMC FC152
  • 1947-1949 GMC FC250
  • 1947-1949 GMC FC251
  • 1947-1949 GMC FC252
  • 1947-1949 GMC FC253
  • 1947-1949 GMC FC280
  • 1947-1949 GMC FC281
  • 1947-1947 GMC FC283
  • 1947-1949 GMC FC300
  • 1947-1949 GMC FC350
  • 1947-1949 GMC FCS300
  • 1947-1949 GMC FCS350
  • 1947-1949 GMC FF350
  • 1949-1949 GMC FP152
  • 1967-1967 GMC G15/G1500 Van
  • 1967-1967 GMC G25/G2500 Van
  • 1970-1970 GMC G25/G2500 Van
  • 1970-1970 GMC G35/G3500 Van
  • 1970-1970 GMC Jimmy
  • 1967-1970 GMC K15/K1500 Pickup
  • 1967-1970 GMC K15/K1500 Suburban
  • 1967-1970 GMC K25/K2500 Pickup
  • 1967-1970 GMC K25/K2500 Suburban
  • 1968-1970 GMC K35/K3500 Pickup
  • 1970-1970 GMC P25/P2500 Van
  • 1970-1970 GMC P35/P3500 Van
  • 1961-1961 GMC PB1000 Series
  • 1955-1959 GMC PM150
  • 1953-1954 GMC PM150-22
  • 1953-1954 GMC PM150-24
  • 1958-1959 GMC PM151
  • 1958-1959 GMC PM152
  • 1953-1954 GMC PM152-22
  • 1959-1959 GMC PM153
  • 1955-1959 GMC PM250
  • 1954-1954 GMC PM250-24
  • 1958-1959 GMC PM251
  • 1958-1958 GMC PM252
  • 1958-1958 GMC PM253
  • 1960-1962 GMC Suburban
  • 1953-1960 GMC Truck
  • 1974-1974 International 100
  • 1972-1973 International 1010
  • 1972-1973 International 1110
  • 1972-1973 International 1210
  • 1972-1973 International 1310
  • 1975-1975 International 150
  • 1974-1975 International 200
  • 1950-1952 International L110
  • 1950-1952 International L111
  • 1950-1952 International L112
  • 1950-1952 International L120
  • 1950-1952 International L121
  • 1950-1952 International L122
  • 1950-1952 International L130
  • 1950-1952 International L150
  • 1951-1952 International L151
  • 1950-1952 International L153
  • 1950-1952 International LM153
  • 1972-1972 International M1100
  • 1972-1972 International M1200
  • 1972-1972 International M800 Post Office
  • 1974-1974 International MHC1310
  • 1972-1974 International MS1210
  • 1953-1955 International R100
  • 1953-1955 International R102
  • 1953-1955 International R110
  • 1953-1955 International R111
  • 1953-1955 International R112
  • 1953-1955 International R120
  • 1953-1955 International R121
  • 1953-1955 International R122
  • 1953-1955 International R130
  • 1953-1955 International R131
  • 1953-1955 International R132
  • 1956-1956 International S100
  • 1956-1956 International S102
  • 1956-1956 International S110
  • 1956-1956 International S112
  • 1956-1956 International S120
  • 1956-1956 International S122
  • 1953-1956 International S132
  • 1956-1956 International SA120
  • 1956-1956 International SA122
  • 1972-1980 International Scout II
  • 1975-1975 International Travelall
  • 1957-1959 Plymouth Belvedere
  • 1957-1959 Plymouth Fury
  • 1957-1958 Plymouth Plaza
  • 1957-1959 Plymouth Savoy
  • 1957-1959 Plymouth Suburban
  • 1955-1961 Pontiac Star Chief
  • 1956-1958 Zundapp Janus 250

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.

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