Yes it is a one year part, just like the body of a 68 is one year only with the fuel flap you can open with your finger. If you are a purist you woudl most likly want to use that speedo but any VW speedo will work.
A 1968 Beetle is air cooled there is no water pump fitted.
In the US it was a 15" by 4", later years went to 4.5".
yes it can
Fixing it depends on what the speedometer is doing. Chances are its making a funny noise and the needle is bouncing around. This would be due to a damaged or unlubricated speedometer cable. It is a cable that spins around in a plastic sheath connected to the back or your speedometer and to your transmission. Often times removing it and filling it with graphite powder will solve the problem. If its severely damaged you can replace it with a new one. If the cable isn't the problem you may have to replace the speedometer itself.
$1995.
around 2700 dollars I bought a 1968 Beetle in fall 1967 and remember pretty distinctly that the sticker price was $1,800.
Yes, the hoods from 1968 to 1979 will all interchange.
Yes
1968
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The indicators are located on the front fenders
The VIN for my 1968 VW Beetle is located under the hood, behind the spare tire, on an attached metal plate. and under the rear seat dead center the hump.