(74) Basic Choke Diaphragm for Weber DATC Carburetor 47407.xxx

Basic Choke Diaphragm for Weber DATC Carburetors.

These diaphragms now tend to suffer from age and the ravages of aggressive modern fuels which causes the "rubberized textile" material to harden and even crack, causing erratic running of the engine and fuel leaks.

Replacing the diaphragm is then the only sensible option.

This is the "basic" version of the diaphragm.

Please note that when you order this diaphragm, you get the diaphragm as shown in the picture.

In case the plastic parts, spring etc from your original diaphragm are still salvageable, you can transplant them onto this diaphragm.

In case you need the "complete" diaphragm, 47405.133, please click HERE.

Please note that over the years, a variety of these diaphragms were used which are not necessarily interchangeable.

This particular diaphragm has a stalk that stands 53.5 mm tall, measured from the top dish.

Required quantity per carburettor: 1

This is numbers 74 in the drawing.

This diaphragm replaces the following Weber Part Numbers:

• 47407.155
• 47405.160
• 47405.164
• 47405.180
• 47405.183
• 47405.213
• 47405.224
• 47405.253
• 47405.255
• 47405.256
• 47405.278
• 47405.289
• 47405.303
• 47405.320
• 47405.362
• 47405.373
• 47405.375
• 47405.384