Deck Lid Cylinder - Cadillac XLR

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Part Number 88957088 Make Cadillac

You send in your leaking XLR Deck Lid Cylinder, and Top Hydraulics rebuilds it.

  • Top Hydraulics replaces & upgrades ALL seals in your cylinder with our superior proprietary material including rod seals, gland seals, port seals, plug seals and piston seals. Top Hydraulics also manufactures and installs our own precision CNC machined front caps in these cylinders, so that the tiny OEM rod seals can be replaced with Top Hydraulics' u-cup seals for a far more reliable seal and much longer service life.
  • No surcharge for dented or corroded cylinder shafts - shaft replacement as necessary is included in the rebuild charge. 

P/N 88957088

Order Method:
$250.00

We currently have enough inventory only to supply the main lift cylinders as part of a complete set of eight cylinders. 

Cadillac XLR '03-'09 Deck Lid (Trunk Lid) Cylinder 88957088

You remove your cylinder(s) you would like to have rebuilt, and send them to us. Core exchange (where we send cylinders from our inventory first) is available only for full sets of eight cylinders. Consider having all eight cylinders rebuilt & upgraded at the same time, because they all fail in fairly short order, and you save a lot of labor and frustration this way!

This is a rebuild/upgrade service for a single '03-'09 Cadillac XLR Decklid Hydraulic Cylinder for the convertible top system. The XLR has two of these cylinders, p/n 88957088. Also known as 1609-030-B (easily misread as 1689-030-B, engraved on the cylinder, second line), or 1609-030-C or CTS 17006230200. They actuate the trunk lid by lifting it out of the top's way.

No surcharge for dented or corroded cylinder shafts - shaft replacement as necessary is included in the rebuild charge.

The original seals in these cylinders are made of a material that fails within 10-15 years, or faster if exposed to contaminants or water in the convertible top hydraulic fluid. Top Hydraulics replaces the original steel gland inside the cylinder with a new, CNC-machined one that accommodates more sophisticated rod seal, gland seal, and wiper seal for maximum service life of the cylinder. Replaced and improved rod seal, piston seal, cap seal, gland seal, wiper, and port seals make this part better than a brand new one, with an expected service life of 30-50 years under normal circumstances. 

In most cases, the first leak on the original cylinders will be through the mounting hole at the bottom of the cylinder, making it appear like a leak from one of the hydraulic hoses. Next, they will typically leak from the top, and ultimately they will develop internal bypasses. Even brand new cylinders from the dealer can fail again within a short time frame if the hydraulic fluid in your system is contaminated. The rebuild & upgrade service from Top Hydraulics will avoid these issues, because our seals are inert to almost any contamination.

These cylinders are easy to remove from the trunk lid, once the trunk lid has been lifted. Remove the mounting pin first that goes through the clevis (fork) first, and retract the shaft. Then remove the bottom pin that goes through the cylinder housing. Last, remove the hydraulic line clips by sliding them in the cylinders rail. Hang on to the clips, so that they don't get lost. Pull out the hydraulic lines - we suggest sticking the hose ends into a ziplock bag. Cycle the fluid out of the cylinder(s), package well, and send to Top Hydraulics.

Interactive Diagram:

Click any part below to be taken to the order page.

Category Cadillac
Rebuild/Upgrade Service for '03-'09 Cadillac XLR Main Hydraulic Cylinder
Deck Lid Cylinder - Cadillac XLR - P/N: 88957088

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.

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Reviews (2)

Rated 5.00 on the scale 1 - 5 based on 2 customer reviews
Verified purchase

Deck Lid Cylinder

Great and fast transaction

Verified purchase

Great job!

We are so pleased with Top Hydraulics! Their turn around time was great and the part works perfectly. Since GM quit making parts for the XLR, rebuilt parts are the only way to keep my car on the road. We are so happy to have found them, their "how to" video was a big help as well. Thank you, Top H!

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