Reproduction 4001 incandescent (non-halogen) high beam light bulb for the 1967, 1968, 1969, 1970, 1971, 1972 and 1973 Mercury Cougar. Plugs right in to the factory 2-prong plug and mounts in the inboard position on the car.
These are OEM wattage (50 watts) to work with the factory headlight switch, without the need to add relays like you would for higher wattage halogen bulbs.
Replaces bulb number 4001. Sold individually, 2 required per car.