Rebuild/Upgrade Service for Right Soft Top Lid Cylinder for BMW F23 2-Series.  

Send in your part(s) first, or select "Order now with core exchange" to order from our inventory. Core exchange orders are subject to a $50 inventory surcharge as well as a $120 refundable core deposit.

Replaced and improved rod seals, piston seals, cap seals, gland seals, wipers, and port seals make these parts better than brand new ones, with an expected service life of 30-50 years under normal circumstances.

P/N: 54347421826

You send us your pump to be rebuilt and upgraded. Includes replacement of electric motor if needed, overhaul of valves and internal parts of the pump assembly to exceed manufacturer's specs, a full bench test for flow, pressure, and thermal behavior. Ships filled with fluid for plug and play installation.

Expedited core exchange option is available and includes a $30 inventory surcharge + $150 core deposit.

BMW p/n 54348410305

840722402

HB70095-002

Special option: Core exchange. This means that you get a rebuilt & upgraded pump from Top Hydraulics' inventory first, then you ship back your original pump for credit of your $200 core refund. Top Hydraulics ships a pump as pictured: no mounting frame and no wiring harness, in order to keep the shipping cost low. You get a pump that has been rebuilt to outlast and outperform brand new ones.

BMW part number 54347025595, see more detailed notes below. Aka 54348234530. Number printed on the pump is normally 8 234 530.
Please make a special note in your order if you have a model year 2000 or 2001.

New, Extended Hydraulic Line # 24 for 2000-2006 BMW E46 convertibles.

Extended version of the OEM hose, which greatly reduces labor needed to replace and  eliminates the same manufacturing/design error seen with this hose originally in your 3-Series Convertible. Only available from Top Hydraulics.

Rebuild/Upgrade Service for Left Main Lift Cylinder for BMW F23 2-Series.  

Send in your part(s) first, or select "Order now with core exchange" to order from our inventory.   Core exchange orders are subject to a $50 inventory surcharge as well as a $120 refundable core deposit.

Replaced and improved rod seals, piston seals, cap seals, gland seals, wipers, and port seals make these parts better than brand new ones, with an expected service life of 30-50 years under normal circumstances.

P/N: 54347421755

Rebuild/Upgrade Service for the full set of BMW E88 1-Series.  

Send in your cylinders first, or select "Order now with core exchange" to order a set from our inventory. Core exchange orders are subject to a $200 inventory surcharge as well as a $600 refundable core deposit.

Replaced and improved rod seals, piston seals, cap seals, gland seals, wipers, and port seals make these parts better than brand new ones, with an expected service life of 30-50 years under normal circumstances.

New, Extended Hydraulic Line # 34 for 2003-2006 BMW E46 convertibles.

Slightly extended version of the OEM hose, which is not available from BMW. Only available from Top Hydraulics. This line is for the newer version bow tension cylinder on the left side, top fitting, where the lines are attached via a screwed on clamp.

Rebuild/Upgrade Service for Right Tension Rod Cylinder for BMW E88 1-Series.  

Send in your part(s) first, or select "Order now with core exchange" to order from our inventory.   Core exchange orders are subject to a $50 inventory surcharge as well as a $120 refundable core deposit.

Replaced and improved rod seals, piston seals, cap seals, gland seals, wipers, and port seals make these parts better than brand new ones, with an expected service life of 30-50 years under normal circumstances.

P/N: 54347190668

Replace one crimped-on Hydraulic Line # 31, 32, 33, or 34 on Bow Tension Cylinders for 2000-2003 BMW E46 convertibles.

Early model years (cut-off somewhere in 2003) have bow tension cylinders aka clamping bar cylinders with hydraulic lines that cannot be removed from the cylinder. Send in your left side cylinder, and Top Hydraulics will replace the line with OEM material.

You send in your malfunctioning BMW 2-Series (F23) hydro unit, and Top Hydraulics rebuilds it. The rebuild includes electric motor replacement or rewinding if necessary, a new high-current relay, service of hydraulic valves, and upgrade of internal seals in the pump to eliminate current or future pressure loss or internal bypass. Three years warranty.

P/N 54-34-7-421-753, aka 7310756, aka 541090, aka 54347421753

You send in your malfunctioning BMW F12 6-Series hydraulic pump unit, and Top Hydraulics rebuilds it. The rebuild includes electric motor replacement or rewinding if necessary, service of hydraulic and solenoid valves, service of moving parts and replacement as necessary, upgrade of internal seals in the pump to eliminate current or future pressure loss or internal bypass, and extensive testing to ensure the pump exceeds factory specs. Three years warranty.

Core exchange option is available (we ship the part first from our inventory) for $50 surcharge plus $250 deposit. Core exchange pumps ship filled with fluid, for plug-and-play installation. 

p/n: 54347299838

Price listed is for rebuild/upgrade service for an individual hydraulic hinge cylinder.

Expedited Core Exchange Option includes a $250 Refundable Core Charge plus a $75 surcharge for inventory management.

It is highly recommended to upgrade them in pairs. These hydraulic cylinders always fail almost simultaneously.

To order a pair of hinges instead, click here.

BMW E46 1998-2006|330ci, 325ci, 323ci, M3, etc

Rebuild service for Hydraulic Valve Block aka Control Unit BMW p/n 54347025592

Send in your part for for rebuild/upgrade service, or get immediate shipment from our inveentory if you choose optional core exchange.

New, Extended Hydraulic Line # 23 for 2000-2006 BMW E46 convertibles.

Extended version of the OEM hose, which greatly reduces labor needed to replace and  eliminates the same manufacturing/design error seen with this hose originally in your 3-Series Convertible. Only available from Top Hydraulics.

Rebuild/Upgrade Service for Left Main Lift Cylinder for BMW E88 1-Series.  

Send in your part(s) first, or select "Order now with core exchange" to order from our inventory.   Core exchange orders are subject to a $50 inventory surcharge as well as a $120 refundable core deposit.

Replaced and improved rod seals, piston seals, cap seals, gland seals, wipers, and port seals make these parts better than brand new ones, with an expected service life of 30-50 years under normal circumstances.

P/N: 54347190665