AC Delco R43TS resistor spark plug, 14mm tapered seat, LPG, each
Delco Standard Spark Plugs are precisely engineered and manufactured to provide everyday reliability and efficient performance.
- A copper-core center electrode that helps provide improved heat transfer to the tip, giving you the reliability you're looking for while improving its resistance to low-speed carbon fouling.
- Hot-tip insulator heats fast and fires hot.
- The nickel-chrome alloy on the ground electrode and center electrode sheathing resists wear from spark erosion and the corrosive environment of the combustion chamber.
- Heat range 3.
Buick 1968-1991 (most engines)
Cadillac 1993 (Chevrolet 350 engine)
Chevrolet 1970-1992 (6-cyl, small & big block mk. IV)
Chrysler 1978-1983 (inline 6-cylinder)
Dodge 1975-1987 (inline 6-cylinder)
Ford 1974-1985 (Modified, Windsor small & 385 big-block)
GMC 1971-1987 (6-cyl, small & big block mk. IV)
Jeep 1968-1971 (AMC & Buick V8)
Lincoln 1974-1985 (Modified, Windsor small & 385 big-block)
Mercury 1974-1985 (Modified, Windsor small & 385 big-block)
Oldsmobile 1970-1991 (inline 6-cyl, SBC, Oldsmobile V8)
Plymouth 1975-1983 (inline 6-cylinder)
Pontiac 1970-1991 (most engines)