Rebuild/upgrade service for Left Bow Extension Cylinder Mercedes R129 SL-Class

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Price listed is for Standard Rebuild Service- You send in your cylinder(s) to be rebuilt.

Expedited Core Exchange Option includes a $160 Refundable Core Charge plus a $30 surcharge for inventory management.

Convertible top cylinder rebuild service for Mercedes R129 models SL280, SL320, SL500, SL600. P/N 1298001772



For optional core exchange, select YES in the drop down menu above.

Core exchange means that you get rebuilt parts from Top Hydraulics' inventory first, and then you send back your original parts for a refund of your core deposit of $160. For a full core refund, cylinders must be in good condition except for leaking seals.



Left Bow Extension cylinder

It is highly recommended to upgrade these cylinders in pairs. Part ships without micro switch attached if you choose core exchange.


Convertible hydraulic cylinder rebuild/upgrade service for Mercedes R129 models 300SL, 500SL,  600SL, SL320, SL500, SL60, SL600, SL73.

Top Hydraulics Offers two options for upgrading cylinders for Mercedes convertible tops.

For Rebuilding The Cylinders That You Send In:  We gladly accept the cylinders in their locks / latches at no extra charge -- you save the extra labor and we have all the assurance that the cylinders do not accidentally get scratched upon removal from the locks. Once we receive your cylinders, the turn around time is approximately one week for rebuild service and we will ship the cylinders back to you by Priority U.S. Mail (2-3 days delivery time).

To order with with Core Exchange: For locking cylinders, we will usually ship a custom made loaner wrench for easy removal of the cylinder from the lock. Core deposits will be refunded in full if we receive your matching cores within 90 days, and the cylinder rods are unscratched. A small "rental charge" may apply if the cores get returned later than 90 days from receipt, but we are usually extending the return period within reason without such rental charge.

Metal parts in your hydraulic cylinders do not get damaged during normal operation. Sealing surfaces (for example the polished, chromed cylinder shafts sliding through the rod seals) can easily get scratched beyond repair by tools - especially during DIY repair attempts. Top Hydraulics can replace any damaged metal parts, but has to charge extra for that service.

Seals used by Top Hydraulics, Inc. include Viton™ and Teflon™-hybrid seals, as well as enhanced Polyurethane material, which far exceed the OEM's requirements for rigidity, but provide more than double the service life for your convertible car top actuators, based on scientific test data. Making your roadster/cabriolet hydraulics better than new!

Part number - 1298001772 (AKA A129 800 17 72)

Mercedes R129 SL Years: 1990-2002

Note: Please follow removal instructions carefully on this cylinder.

Left Bow Extension Cylinder Removal Guide


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