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Rebuild Service for BMW E89 Z4 Left Roof Panel Cylinder 54377223333
$250.00
BMW Z4 (E89) 2009-2016 Hydro Unit Rebuild Service
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Rebuild & upgrade service for your Z4 convertible top pump, also known as Motor assembly or Hydro Unit. Your pump will ship back exceeding all manufacturer's specs. This is a full rebuild where the pump gets torn apart to the component level, all seals get replaced and upgraded, every component checked for tolerance and function and replaced as necessary. The pumps shipping from Top Hydraulics may not look as pretty as brand new ones but we are sure that they are better inside and will outlast new ones.
There is a surcharge for replacing abused or missing pressure relief valves, see details below.
BMW part number 54377309634, aka 7220798 or 7309634
Send in your part first.
Return shipping within the US for $20 via FedEx 2-Day Service with signature required.
Return shipping to Canada is $55 via FedEx International Ground or $100 via FedEx International Priority.
Return shipping to most other countries is $145.
$800.00
Part number commonly printed on the pump: DAT1-112408
BMW part number:
54377309634
54377309634
54-37-7-309-634
54 37 7 309 634
Top Hydraulics sends the pump back filled with fluid when shipping within the US.
Rebuild & upgrade service for your Z4 convertible top pump, also known as Motor Assembly or Hydro Unit.
Common failures of E89 Z4 top pumps are caused by water intrusion, or by stuck relays burning out the motor and overheating the pump or by internal seals and valves or the solenoids wearing out. Your pump will ship back exceeding all manufacturer's specs. This is a full rebuild where the pump gets torn apart to the component level, all seals get replaced and upgraded, every component checked for tolerance and function and replaced as necessary. This is a true rebuild by professionals, not some junk yard or garage outfit using a trial-and-error method where components get swapped until the pump seems to work, or only replacing the electric motor if that one was burnt out. At Top Hydraulics, we design our own seals designed to far outlast the original ones and allow for more back pressure in the reservoir. We also rewind our electric motors in house, using about 50% more copper than the original manufacturer. The latter is generating more power at less energy consumption, resulting in a motor that does not overheat easily any more. The E89 Z4 Hydro Units are very complex pumps with various weak spots that will eventually fail. Let Top hydraulics take care of it and send you a pump that is better inside than a new one from BMW...
The pumps shipping from Top Hydraulics may not look as pretty as brand new ones but we are sure that they are better inside and outlast new ones under similar circumstances.
There may be a surcharge for missing parts or abuse, such as severe corrosion in the pump's aluminum block, shattered reservoir or severely damaged pressure relief valve(s) from DIY attempts to remove the pressure relief valves. Specifically, replacing damaged pressure relief valves incurs a surcharge of $150/ea - it's an involved process. There is no surcharge for rebuilding or replacing corroded motors on these pumps.
Return shipping within the US for $20 via FedEx 2-Day Service with signature required.
Send in your part first.
FedEx 2-Day Delivery
Most orders placed within the USA will ship via FedEx 2-Day Service.
FedEx Priority Overnight Service
Orders placed with FedEx Priority Overnight Service can typically ship same day as long as the order is received before 11AM Pacific Standard Time
FedEx International Priority
For Customs clearance, you must declare a value on the package you are sending us. Please note: parcels with a declared value under US$750 enter the US without incurring taxes, duties or clearance fees. Considering that you are sending us broken parts for repair, it is most reasonable to declare a value under US$750. You can insure your parcel only up to the amount that has been declared as the value for customs, so your best insurance is good packaging. It is extremely rare that parts get lost on the way to us.
Please be sure to drain or cycle all fluid out of your parts, then wrap them in plastic, so that the parcel does not get soaked in oil. It is generally a good practice to double box pumps or sets of cylinders because heavy parcels take quite a beating in international transit unless you are using a premium carrier such as FedEx. Clearly, you don't want to just stick a part into a cardboard envelope without any further protection or buffering. Buffer your parcel well inside so that parts don't rattle around or the parcel gets crushed from others on top of it. Ideally, tape all around all surfaces of the parcel, which generally provides excellent protection against losing components that are trying to escape through small holes in the cardboard.
We use FedEx International Priority for almost all outbound international shipments, as they tend to offer the fastest and most secure service. Due to our shipping volumes, our rates for return shipping your parts via FedEx International Priority are typically equal to or cheaper than Postal Service. We cannot offer shipping labels for your shipment from you to us - you will have to shop around for the best option to ship your parts to us.
In the rare event that you feel you have to declare a value over US$750 on your parcel shipping to us, please understand that we will need to be reimbursed for any importation fees or duties incurred. You agree to this by accepting our terms and conditions when you place your order. On high value parcels, we are typically charged an Entry Prep Fee (currently about $25) plus 2.5% tax on the declared value of the package, there are oftentimes delays in customs, and it can take a while for us to receive the actual customs invoice.
Depending on the parts you are sending us, your customs declaration might say "hydraulic cylinder for repair" or "hydraulic pump" for repair. Please note that DHL does not like to carry hydraulic parts or used car parts in some countries. If your carrier asks for the "harmonized code or tariff" of the parts you are shipping, those are 841221 for linear actuators (cylinders) and 841360 for pumps.
At Top Hydraulics, we pride ourselves on providing new and remanufactured parts with unmatched quality and longevity.
It is very rare that our parts fail. Obviously, we are only human and we could have made a mistake or one of our components might indeed have had a hidden defect. Please contact us first when you suspect that you have a warranty case, so that we can try to help right away. It could be that the failure you are experiencing is caused by a different component or that the installation was not quite proper, so we like to be in touch first to go over the situation with you.
Unless stated otherwise, there is a 3 year warranty on all new and remanufactured parts provided by Top Hydraulics. This warranty is transferable. All parts manufactured or rebuilt by Top Hydraulics have unique markings, so there is no additional paperwork needed to transfer a warranty. The warranty does not cover labor, direct or consequential damages. The warranty is void when the parts have been abused or have been installed incorrectly, or when brake fluid or stop-leak additives have contaminated your hydraulic system..
You will have to send your failed part(s) back to Top Hydraulics for a warranty evaluation. In the extremely rare case of failure on rebuilds or new parts shipped or provided by Top Hydraulics, Top Hydraulics' warranty covers only parts and is limited to rebuilding the products previously shipped by Top Hydraulics, or replacing them, or refunding the rebuild fee at Top Hydraulics' discretion. If the failure was our fault, then we will refund reasonable shipping costs, as well.
