1973.5 911T Coupe 5-Speed

The 1973.5 Porsche 911T Coupe is a fascinating “half-year” model that marked a major turning point for the 911 line. Introduced midway through the 1973 model year, it was the first 911 to feature Bosch’s new CIS (Continuous Injection System), replacing the mechanical fuel injection used on prior U.S.-spec 911Ts. This change brought with it a number of unique features, including revised wiring, a cold start valve, and a warm-up regulator mounted directly to the steel intake tubes. It also required a model-specific gas tank with an internal swirl pot to ensure consistent fuel delivery during hard cornering—something critical for the constant-return fuel system. Paired with subtle exterior updates like rubber bumperettes, the 1973.5 911T stands as a one-year-only blend of early 911 styling and the beginnings of modern fuel delivery.

This 1973(.5) 911T Coupe 5-Speed came refinished in Red over a Black leatherette interior and showed 62,000 (TMU) miles on the odometer. Originally delivered in Silver Metallic, the car was repainted some time ago and now shows signs of use, including chips in the finish, a dent in the right window frame, and a patch panel in the passenger-side floor. Recently, it benefited from an engine-out service that included a valve adjustment, intake system repair, and an oil change. Additional work included replacing the electrical portion of the ignition switch, the fuel sending unit, various fuel lines, batteries, and more.

Our Spotlight car last sold in October of 2016 at a final bid of $55,000. Over the past twelve months, 911T Coupes have averaged $81,800, with comps for this one coming in a bit above average. With all of the recent work completed on the engine, one would have expected it to at least reach the low comp number of $80k. Instead, it sold at a final bid of $65,500—marking the first of a few deals to be had yesterday.

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