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Alfa
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Audi- Audi TT MK1 98-06
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BMW- BMW Z3 (E36) 1996-2002
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Volvo
These cylinders typically fail first in the rear of the cylinder. The OEM (Original Equipment Manufacturer) cylinders have front and rear caps that are sealed from the cylinder bodies with a seal material that decays over time.
Top Hydraulics replaces those seals with a far superior material that is not sensitive to water and is resistant to most additives in hydraulic fluid. Our seals have a larger cross section for a superior static seal. The OEM cylinders rely on a tiny o-ring to energize a very thin, flat rod seal. The o-rings loose elasticity over time, and the OEM rod seals wear out.
Top Hydraulics manufactures and installs its own precision CNC machined front caps in these cylinders, so that the tiny OEM rod seals can be replaced with Top Hydraulics' own u-cup seals for a far more reliable seal and much longer service life. In addition, the size and geometry of Top Hydraulics' u-cups is forgiving to tiny scratches and imperfections in the cylinder rods (aka piston rods or shafts), caused during the original manufacture, during removal from the car, during installation into the car, or by impurities in the hydraulic fluid.
Top Hydraulics replaces the port seals (where the hydraulic hoses attach) and ships spares with each cylinder, in case your mechanic accidentally pinches an o-ring while installing the hydraulic hose.
Owning and driving a convertible with an automatic top is prestigious, convenient and exciting - let Top Hydraulics help you enjoy your beautiful car even more by making your convertible top system truly better than new!.
Volvo
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Send us your pump for rebuild & upgrade service
-OR-
Order a rebuilt pump from our inventory with core exchange.
Expedited Core Exchange Option where Top Hydraulics ships parts from our inventory first is $650 plus a $200 Refundable Core Charge.Core exchange pumps ship without wiring harness or motor cover and come filled with fluid.
Please be sure to drain all fluid from your pump before shipping it to us.
Shipping in the US is $20 via FedEx 2-Day Service or USPS Priority Mail, $90 domestic FedEx Priority, $90 FedEx International Priority.
Price$600.00The front top lock cylinder locks the top to the front windshield, it is located in the center front of your top's front panel. Send in your part first to be rebuilt and upgraded, or use the core exchange option where we send one from our inventory first. Top Hydraulics' rebuild makes these parts better than new inside, with far superior seals. Includes seals for hose installation.
Volvo part number 30633397
Price$200.00The roof top main panel cylinders are located in the middle panel of your C70's hardtop. There is currently no core exchange available for these parts, so you need to send in yours first, then we rebuild them, then we ship them back. We make the inside of these cylinders far better than new, with much longer lasting seals. Includes seals for hose installation. Be sure not to damage the plastic guides inside the odd shaped rod ends - we do not currently replace damaged guides or damaged rod ends.
Volvo part number 31256114 or 30787762 or 30787858 (all interchangeable)
Price$250.00The Master (Top Drive) Cylinders lift the main portion of the hard top frame and they are mounted horizontally inside the rear of the hard top frame. Send in your part first to be rebuilt and upgraded, or use the core exchange option where we send one from our inventory first. Top Hydraulics' rebuild makes these parts better than new inside, with far superior seals. Includes seals for hose installation.
The core exchange option includes a $50 surcharge plus a $200 deposit. To utilize the core exchange option, select "Core exchange: Order from our inventory" in the drop down menu above.
Volvo part number 30633395 or 31256542 (interchangeable)
Price$250.00The cover panel lift cylinders extend and retract the cover panel from the trunk lid (the vinyl covered panel is extended when the top is down), they are located under the trunk lid's front section. Send in your part first to be rebuilt and upgraded, or use the core exchange option where we send one from our inventory first. Top Hydraulics' rebuild makes these parts better than new inside, with far superior seals. Includes seals for hose installation.
The core exchange option includes a $50 surcharge plus a $200 deposit. To utilize the core exchange option, select "Core exchange: Order from our inventory" in the drop down menu above.
Price$250.00The cover panel lift cylinders extend and retract the cover panel from the trunk lid (the vinyl covered panel is extended when the top is down), they are located under the trunk lid's front section. Send in your part first to be rebuilt and upgraded, or use the core exchange option where we send one from our inventory first. Top Hydraulics' rebuild makes these parts better than new inside, with far superior seals. Includes seals for hose installation.
The core exchange option includes a $50 surcharge plus a $200 deposit. To utilize the core exchange option, select "Core exchange: Order from our inventory" in the drop down menu above.
Price$250.00
