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BMW 4-Series (F33)

Rebuild & Upgrade Service for your 2014-present BMW F33 4-Series Convertible Hydraulic components.

Our Core Exchange option makes this as easy as buying a new part - you only have to ship back your old parts(s) afterwards for core credit. Top Hydraulics' also rebuilds and upgrades convertible hydraulic pumps, and we also manufacture our own upgraded hydraulic lines.

You may also choose to remove the parts you would like to have rebuilt, and send them to us. Once we receive your parts, the turn around time is 1-3 days for rebuild service and we will ship the cylinders back to you by Priority U.S. Mail (2-3 days delivery time in the US).

BMW 4-Series (F33)


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You send in your malfunctioning F33 4-Series hydro unit, and Top Hydraulics rebuilds it.


Order from our inventory with core exchange (includes $50 inventory surcharge and $500 refundable deposit)

P/N: 54377344440

Includes electric motor replacement or rewinding if necessary, two new high-current relays, service of hydraulic valves and solenoids, and upgrade of internal seals in the pump to eliminate current or future pressure loss or internal bypass. Three years warranty!

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