When you're going through a restoration and want everything to be "just right" it's easy to overlook the fuel pump. Over the past 40 years the fuel pump in your Type 34 has probably been changed at least once, and depending on what was available at the time your original fuel pump may not be the same one as when it was new. There are a lot of Brazilian & aftermarket fuel pumps too since these were less expensive.

There are two styles of original fuel pumps for Type 34s: early (top cap) & late (lower cap) shown in the photo below. Early fuel pumps have a two-piece ivory cap that has a flat vertical edge. Late pumps have a one-piece ivory cap that is smoothly rounded. Both caps are secured onto the fuel pump with a metal circle-ring that fits snugly into the groove in the pumps center. The fuel pumps are also different to accommodate the caps. Look closely at the later-style fuel pump in the photo and you'll see the large bronze internal filter nut. This later pump can't be used with an early cap.

You can see the early 2-piece fuel pump on Andy Holmes' 1965 344 from England (above).
Original sales and service literature tells us that the early style pumps (2-piece cap) were fitted to 1962-65 Type 34s and the later (1-piece cap) were fitted to 1966-69 Type 34s.

The later 1-piece fuel pump on the Karmann Museum's 1969 Automatic Sunroof in Germany (below) is all original & unrestored.

Finding an original cap and fuel pump is not easy. But since they were used on all Type 3 models they can be found at the larger VW swap meets like the VW Classic. Prices range from $5 to $30 depending on condition and seller. EBay also has these from time to time, sometimes in NOS condition.