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- Champion N9YC Racing Spark Plug, 1960-1980 - Spark plugs ignite the air-fuel mixture in an internal combustion engine's cylinders. High voltage jumps across a gap between two electrodes on the plug's bottom and creates a spark. Racing spark plugs are optimized for maximum performance and durability in race conditions, where engines run at high speeds and high temperatures.

- 1960-1980
- Collections - Artifact
Champion N9YC Racing Spark Plug, 1960-1980
Spark plugs ignite the air-fuel mixture in an internal combustion engine's cylinders. High voltage jumps across a gap between two electrodes on the plug's bottom and creates a spark. Racing spark plugs are optimized for maximum performance and durability in race conditions, where engines run at high speeds and high temperatures.
- Ford Model T Spark Plug, circa 1925 - Early spark plugs required regular maintenance. This spark plug from a 1920s Ford Model T could be taken apart to be cleaned and adjusted.

- circa 1925
- Collections - Artifact
Ford Model T Spark Plug, circa 1925
Early spark plugs required regular maintenance. This spark plug from a 1920s Ford Model T could be taken apart to be cleaned and adjusted.
- Manufacture of Spark Plugs, Ford Building, California Pacific International Exposition, San Diego, 1935 - Through the 1930s, Ford Motor Company poured resources into exhibitions at regional and world's fairs. Henry Ford believed strongly in the educational value of such displays, and a corporate presence at the fairs benefitted public relations. Ford's popular exhibits and demonstrations -- pictured here in the 1935 California Pacific International Exposition Ford Building -- generated lots of publicity.

- 1935
- Collections - Artifact
Manufacture of Spark Plugs, Ford Building, California Pacific International Exposition, San Diego, 1935
Through the 1930s, Ford Motor Company poured resources into exhibitions at regional and world's fairs. Henry Ford believed strongly in the educational value of such displays, and a corporate presence at the fairs benefitted public relations. Ford's popular exhibits and demonstrations -- pictured here in the 1935 California Pacific International Exposition Ford Building -- generated lots of publicity.
- Champion Spark Plug Tester, 1940-1949 - Spark plugs ignite the air-fuel mixture in an internal combustion engine's cylinders. High voltage jumps across a gap between two electrodes on the plug's bottom and creates a spark. Racing driver Bobby Unser used this spark plug tester at the Unser garage in Albuquerque, New Mexico.

- 1940-1949
- Collections - Artifact
Champion Spark Plug Tester, 1940-1949
Spark plugs ignite the air-fuel mixture in an internal combustion engine's cylinders. High voltage jumps across a gap between two electrodes on the plug's bottom and creates a spark. Racing driver Bobby Unser used this spark plug tester at the Unser garage in Albuquerque, New Mexico.
- Set of Champion A8 Racing Spark Plugs, 1960-1980 - Spark plugs ignite the air-fuel mixture in an internal combustion engine's cylinders. High voltage jumps across a gap between two electrodes on the plug's bottom and creates a spark. Racing spark plugs are optimized for maximum performance and durability in race conditions, where engines run at high speeds and high temperatures.

- 1960-1980
- Collections - Artifact
Set of Champion A8 Racing Spark Plugs, 1960-1980
Spark plugs ignite the air-fuel mixture in an internal combustion engine's cylinders. High voltage jumps across a gap between two electrodes on the plug's bottom and creates a spark. Racing spark plugs are optimized for maximum performance and durability in race conditions, where engines run at high speeds and high temperatures.
- Set of Champion R502R Racing Spark Plugs, 1960-1980 - Spark plugs ignite the air-fuel mixture in an internal combustion engine's cylinders. High voltage jumps across a gap between two electrodes on the plug's bottom and creates a spark. Racing spark plugs are optimized for maximum performance and durability in race conditions, where engines run at high speeds and high temperatures.

- 1960-1980
- Collections - Artifact
Set of Champion R502R Racing Spark Plugs, 1960-1980
Spark plugs ignite the air-fuel mixture in an internal combustion engine's cylinders. High voltage jumps across a gap between two electrodes on the plug's bottom and creates a spark. Racing spark plugs are optimized for maximum performance and durability in race conditions, where engines run at high speeds and high temperatures.
- Firestone Spark Plugs with Packaging, circa 1942 - Spark plugs ignite the air-fuel mixture in an internal combustion engine's cylinders. High voltage jumps across a gap between two electrodes on the plug's bottom and creates a spark. The plug's top is connected to a wire that runs to the distributor, which in turn is connected to the ignition coil and the battery.

- circa 1942
- Collections - Artifact
Firestone Spark Plugs with Packaging, circa 1942
Spark plugs ignite the air-fuel mixture in an internal combustion engine's cylinders. High voltage jumps across a gap between two electrodes on the plug's bottom and creates a spark. The plug's top is connected to a wire that runs to the distributor, which in turn is connected to the ignition coil and the battery.
- Spark Plug Display, circa 1950 - While later tether car engines used glow plugs for ignition, earlier designs relied on scaled-down spark plugs. Glow plugs only required electricity for initial warm-up. The heat from each combustion event would keep a glow plug hot enough to ignite fuel for the rest of the operating period. Spark plugs needed a constant supply of electricity to produce sparks.

- circa 1950
- Collections - Artifact
Spark Plug Display, circa 1950
While later tether car engines used glow plugs for ignition, earlier designs relied on scaled-down spark plugs. Glow plugs only required electricity for initial warm-up. The heat from each combustion event would keep a glow plug hot enough to ignite fuel for the rest of the operating period. Spark plugs needed a constant supply of electricity to produce sparks.
- Visitors Observing the Spark Plug Manufacturing Process, Ford Building, California Pacific International Exposition, San Diego, 1935 - Through the 1930s, Ford Motor Company poured resources into exhibitions at regional and world's fairs. Henry Ford believed strongly in the educational value of such displays, and a corporate presence at the fairs benefitted public relations. Ford's popular exhibits and demonstrations -- pictured here in the 1935 California Pacific International Exposition Ford Building -- generated lots of publicity.

- 1935
- Collections - Artifact
Visitors Observing the Spark Plug Manufacturing Process, Ford Building, California Pacific International Exposition, San Diego, 1935
Through the 1930s, Ford Motor Company poured resources into exhibitions at regional and world's fairs. Henry Ford believed strongly in the educational value of such displays, and a corporate presence at the fairs benefitted public relations. Ford's popular exhibits and demonstrations -- pictured here in the 1935 California Pacific International Exposition Ford Building -- generated lots of publicity.
- Pair of Champion N7YC Racing Spark Plugs, 1960-1980 - Spark plugs ignite the air-fuel mixture in an internal combustion engine's cylinders. High voltage jumps across a gap between two electrodes on the plug's bottom and creates a spark. Racing spark plugs are optimized for maximum performance and durability in race conditions, where engines run at high speeds and high temperatures.

- 1960-1980
- Collections - Artifact
Pair of Champion N7YC Racing Spark Plugs, 1960-1980
Spark plugs ignite the air-fuel mixture in an internal combustion engine's cylinders. High voltage jumps across a gap between two electrodes on the plug's bottom and creates a spark. Racing spark plugs are optimized for maximum performance and durability in race conditions, where engines run at high speeds and high temperatures.