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Membrane

BMW 700 carburetor and air filter

Membrane Zoom

Membrane

€29.90

incl. 19% VAT plus shipping

complete
Technical data
Category
BMW 700 carburetor and air filter
BMW part number
....0039745
Item number
B7-03-054
Weight
0 kg
Availability on request

No instant purchase: after your request you will receive a personal quote including shipping costs.

Philipp Schäper
Philipp Schäper BMW Isetta specialist Question about this item?
In stock Almost all parts available directly from stock
Original parts Original parts from workshop inventory
Specialists The specialists for BMW Isetta, 600 & 700
Worldwide shipping By DHL, UPS or freight forwarder — safely packed
Application

A diaphragm in a fuel pump converts the reciprocating motion of the pump drive into a pulsating flow, thereby hermetically sealing off the fuel chamber from the drive chamber.

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General information about this item

Product info
The complete diaphragm with part number B7-03-054 replaces the aged fuel pump diaphragm in the BMW 700. Replacement is essential during restoration, as hardened or cracked original diaphragms lead to leaks and loss of fuel delivery. With this new diaphragm, the original fuel delivery capacity and sealing performance of the fuel system are restored.

Database ID: 4585 Accessed on: 17.06.2026 10:15 Data state: 22.05.2026 12:33 In stock since: 18.11.2025