This vacuum membrane (part number 47407,115) is a highly important replacement part for your Weber carburetor. The function of the vacuum membrane is to act as a damper and equalizer. It ensures that the carburetor, and consequently the engine, does not die (stall) when you abruptly close the throttle to return to idle during driving.

If your car tends to stall at traffic lights or when you suddenly let off the gas, it is often because this membrane has become dry or cracked and needs to be replaced.

Technical Specifications (Dimensions):

• Hole distance (CC): 26 mm
• Pin diameter: 10 mm
• Pin height: 1 mm
• Plate diameter (top/bottom): 25 mm

Compatible with the following carburetors (among others):

• Weber 32/36 DGAV
• Weber DGAS
• Weber TLDE
• Weber TLDM