- Remove each spark plug and place each one in a tray by cylinder number. This will help identify and relate any unusual condition to the cylinder involved.
- Brush or air blast dirt away from the well areas before removing spark plugs. CAUTION: Use goggles to protect eyes from debris when applying compressed air to spark plug wells
- When it comes to replacing your spark plugs, ACDelco offers a full line of Professional, premium aftermarket Spark Plug products. Choose from our Iridium, Double Platinum, RAPIDFIRE Single Platinum, Conventional, Marine, and Outdoor Power Equipment lines depending on your performance needs. Diesel vehicle owners can also get the ACDelco advantage with our high-quality Glow Plugs. ACDelco Professional, premium aftermarket spark and glow plugs fit both GM and non-GM vehicles.
- ACDelco Professional Conventional Spark Plugs are designed for reliability and efficient performance, and are the high quality replacement ideal for many vehicles on the road today. Their high-quality copper cores and outstanding suppression characteristics deliver reliable performance. They are also available for Marine applications. These premium aftermarket replacement spark plugs are manufactured to meet your expectations for fit, form, and function.
- Grasp the spark plug boot and gently rotate it 90 degrees counterclockwise. Pull the spark plug boot and cable away from the spark plug. If necessary, use a spark plug boot removing tool. DO NOT grab or violently pull spark plug cables.
- Use the correct deep socket size to loosen each spark plug one or two turns. NOTE: To remove spark plugs from aluminum heads, allow the engine to cool. The heat of the engine, in combination with a spark plug that is still hot, may cause the spark plug threads to strip the cylinder head upon removal.
- Apply dielectric grease into the boot area to reduce the chance of exterior tracking on the buttress tower of the spark plug. This grease also promotes a good heat transfer between the spark terminal screw and boot terminal
ACDelco R44XL Professional Conventional Spark Plug
- Black Onyx coating helps reduce corrosion
- Copper core provides great heat transfer and helps maximize plug durability
- Ribbed suppressor seal extends resistance and helps prevent spark flash over and misfires
- Nickel-chrome alloy sheathing helps prevent corrosion on center electrode
- Available for use in Marine applications
$5.13
55 in stock55 in stock
| Make | Model | Year |
|---|---|---|
| Alfa Romeo | 1900 | 1951 - 1957 |
| Alfa Romeo | 1900C | 1951 - 1956 |
| Alfa Romeo | 2000 | 1958 - 1961 |
| Alfa Romeo | Spider | 1979 - 1988 |
| Alfa Romeo | Spider | 1994 |
| Alfa Romeo | Sport | 1979 |
| Alfa Romeo | Sprint | 1979 |
| Allard | J1 | 1950 |
| Allard | J2 | 1950 - 1951 |
| Allard | J2X | 1952 - 1954 |
| Allard | K1 | 1950 |
| Allard | K2 | 1950 - 1951 |
| Allard | K3 | 1952 - 1954 |
| Allard | L | 1950 |
| Allard | M | 1950 |
| Allard | Monte Carlo | 1952 - 1954 |
| Allard | Palm Beach | 1952 - 1954 |
| Allard | Safari | 1952 - 1954 |
| Alvis | TD21 | 1958 - 1963 |
| Armstrong-Siddeley | Hurricane | 1950 - 1953 |
| Armstrong-Siddeley | Lancaster | 1950 - 1953 |
| Armstrong-Siddeley | Sapphire | 1953 - 1960 |
| Armstrong-Siddeley | Star Sapphire | 1958 - 1960 |
| Armstrong-Siddeley | Typhoon | 1950 - 1953 |
| Armstrong-Siddeley | Whitley | 1950 - 1953 |
| Austin | A125 | 1950 |
| Austin | A125 | 1952 - 1954 |
| Austin | A30 | 1955 - 1962 |
| Austin | A35 | 1956 - 1959 |
| Austin | A40 | 1950 |
| Austin | A40 | 1955 - 1962 |
| Austin | A60 | 1962 - 1964 |
| Austin | A70 | 1950 |
| Austin | A90 | 1950 |
| Austin | A90 | 1955 - 1956 |
| Austin | Atlantic | 1950 - 1952 |
| Austin | Cambridge | 1955 - 1964 |
| Austin | Countryman | 1950 - 1954 |
| Austin | Devon | 1950 - 1951 |
| Austin | Healey 100 | 1953 - 1954 |
| Austin | Healey 100-6 | 1956 - 1960 |
| Austin | Healey Sprite | 1962 |
| Austin | Hereford | 1950 - 1951 |
| Austin | Mini | 1959 |
| Austin | Mini | 1961 - 1962 |
| Austin | Mini 850 | 1959 |
| Austin | Mini 850 | 1961 - 1962 |
| Austin | Seven | 1952 - 1954 |
| Austin | Sheerline | 1950 - 1952 |
| Austin | Somerset | 1952 - 1954 |
| Austin | Sports | 1951 - 1953 |
| Bentley | Continental | 1952 - 1958 |
| Bentley | Mk VI | 1950 - 1954 |
| Bentley | R Type | 1952 - 1954 |
| Bentley | S1 Series | 1955 - 1958 |
| BMW | 501 | 1955 - 1958 |
| Chevrolet | Bel Air | 1963 - 1969 |
| Chevrolet | Biscayne | 1963 |
| Chevrolet | Biscayne | 1966 - 1969 |
| Chevrolet | Blazer | 1969 |
| Chevrolet | Brookwood | 1969 |
| Chevrolet | C10 Panel | 1963 - 1965 |
| Chevrolet | C10 Pickup | 1963 - 1969 |
| Chevrolet | C10 Suburban | 1967 - 1969 |
| Chevrolet | C20 Pickup | 1963 - 1969 |
| Chevrolet | C20 Suburban | 1967 - 1969 |
| Chevrolet | C30 Panel | 1963 - 1965 |
| Chevrolet | C30 Pickup | 1963 - 1969 |
| Chevrolet | Camaro | 1967 - 1969 |
| Chevrolet | Caprice | 1966 - 1969 |
| Chevrolet | Chevelle | 1965 - 1970 |
| Chevrolet | Chevy II | 1968 |
| Chevrolet | Corvette | 1969 |
| Chevrolet | El Camino | 1964 - 1968 |
| Chevrolet | Estate | 1969 |
| Chevrolet | G10 Van | 1964 - 1966 |
| Chevrolet | Impala | 1963 - 1969 |
| Chevrolet | K10 Pickup | 1963 - 1969 |
| Chevrolet | K10 Suburban | 1967 |
| Chevrolet | K10 Suburban | 1969 |
| Chevrolet | K20 Pickup | 1963 - 1969 |
| Chevrolet | K20 Suburban | 1967 - 1969 |
| Chevrolet | K30 Pickup | 1968 - 1969 |
| Chevrolet | Kingswood | 1969 |
| Chevrolet | Malibu | 1966 - 1967 |
| Chevrolet | Nova | 1969 |
| Chevrolet | P10 Series | 1963 - 1965 |
| Chevrolet | P10 Series | 1967 |
| Chevrolet | P20 Series | 1963 - 1967 |
| Chevrolet | P20 Van | 1968 - 1969 |
| Chevrolet | P30 Series | 1963 - 1967 |
| Chevrolet | P30 Van | 1968 - 1969 |
| Chevrolet | Suburban | 1963 - 1966 |
| Chevrolet | Townsman | 1969 |
| GMC | 1000 Series | 1963 - 1965 |
| GMC | 1500 Series | 1963 - 1965 |
| GMC | 2500 Series | 1963 - 1965 |
| GMC | 3000 | 1963 - 1966 |
| GMC | 3500 | 1963 - 1966 |
| GMC | C15/C1500 Pickup | 1967 - 1969 |
| GMC | C15/C1500 Suburban | 1968 - 1969 |
| GMC | C25/C2500 Pickup | 1967 - 1969 |
| GMC | C25/C2500 Suburban | 1968 - 1969 |
| GMC | C35/C3500 Pickup | 1967 - 1969 |
| GMC | G1000 Series | 1963 - 1966 |
| GMC | I1000 | 1964 - 1965 |
| GMC | I1500 | 1965 |
| GMC | I2500 | 1965 |
| GMC | K15/K1500 Pickup | 1967 - 1968 |
| GMC | K15/K1500 Suburban | 1967 - 1969 |
| GMC | K25/K2500 Pickup | 1967 - 1969 |
| GMC | K25/K2500 Suburban | 1968 - 1969 |
| GMC | K35/K3500 Pickup | 1968 - 1969 |
| GMC | P15/P1500 Van | 1967 |
| GMC | P25/P2500 Van | 1967 - 1969 |
| GMC | P35/P3500 Van | 1967 - 1969 |
| GMC | PB1000 Series | 1963 - 1965 |
| GMC | PB15 Series | 1966 |
| GMC | PB1500 Series | 1963 - 1965 |
| GMC | PB25 Series | 1966 |
| GMC | PB2500 Series | 1963 - 1965 |
| GMC | Suburban | 1963 - 1966 |
| Healey | Healey | 1950 - 1954 |
| Healey | Silverstone | 1950 - 1951 |
| Honda | Accord | 1976 - 1978 |
| Honda | Civic | 1975 - 1983 |
| Honda | Prelude | 1983 |
| International | AM80 | 1957 - 1958 |
| International | AM80 | 1961 - 1962 |
| International | CM75 | 1962 - 1963 |
| International | CM80 | 1962 - 1963 |
| Jaguar | 2.4 | 1955 - 1967 |
| Jaguar | 240 | 1967 - 1969 |
| Jaguar | Mark IV | 1950 |
| Jaguar | Mark V | 1950 |
| Jensen | Interceptor | 1950 - 1958 |
| Lancia | Appia | 1953 - 1964 |
| Lancia | Aurelia | 1950 - 1961 |
| Lotus | Eleven | 1957 |
| Lotus | Elite | 1958 - 1961 |
| Lotus | Seven | 1957 - 1961 |
| Lotus | Super Seven | 1958 - 1962 |
| Metropolitan | Series 1500 | 1956 - 1962 |
| Metropolitan | Series A | 1954 |
| Metropolitan | Series B | 1955 - 1957 |
| Morris | Minor | 1957 - 1974 |
| Nash | Ambassador Custom | 1955 - 1956 |
| Nash | Ambassador Super | 1955 - 1956 |
| Nissan | 2000 | 1967 - 1970 |
| Nissan | 280Z | 1975 - 1978 |
| Nissan | 280ZX | 1979 |
| Nissan | 320 | 1961 - 1965 |
| Nissan | 410 | 1963 - 1965 |
| Nissan | 411 | 1963 - 1966 |
| Nissan | 520 Pickup | 1965 - 1968 |
| Nissan | 521 Pickup | 1968 - 1972 |
| Nissan | 610 | 1973 - 1974 |
| Nissan | 620 Pickup | 1972 - 1974 |
| Nissan | 710 | 1974 |
| Nissan | 810 | 1977 - 1979 |
| Nissan | Bluebird | 1959 - 1963 |
| Pontiac | Acadian | 1968 - 1969 |
| Pontiac | Beaumont | 1965 - 1969 |
| Pontiac | Laurentian | 1966 - 1969 |
| Pontiac | Parisienne | 1966 - 1969 |
| Pontiac | Strato-Chief | 1966 - 1969 |
| Porsche | 912 | 1976 |
| Porsche | 914 | 1970 - 1976 |
| Renault | R12 | 1973 - 1974 |
| Renault | R15 | 1972 - 1973 |
| Renault | R17 | 1973 |
| Rolls-Royce | Silver Cloud | 1955 - 1958 |
| Rolls-Royce | Silver Dawn | 1950 - 1954 |
| Rolls-Royce | Silver Wraith | 1950 - 1958 |
| Rover | 105 | 1957 - 1958 |
| Rover | 60 | 1954 - 1958 |
| Rover | 75 | 1950 - 1958 |
| Rover | 80 | 1959 - 1962 |
| Toyopet | Crown | 1958 - 1963 |
| Toyopet | Tiara | 1961 - 1963 |
| Toyota | Crown | 1958 - 1960 |
| Toyota | Tiara | 1960 - 1966 |
| Triumph | Mayflower | 1950 - 1953 |
| Volkswagen | 412 | 1974 |
| Volkswagen | Campmobile | 1974 |
| Volkswagen | Transporter | 1950 - 1979 |
| Volkswagen | Vanagon | 1980 - 1989 |
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