Rebuild Service for '03-'09 Cadillac XLR Hydraulic Pump 88958028
  • Rebuild Service for '03-'09 Cadillac XLR Hydraulic Pump 88958028

Rebuild Service for '03-'09 Cadillac XLR Hydraulic Pump

$800.00

You send in your malfunctioning XLR convertible hydraulic pump unit 88958028, and we rebuild it for $800*.

Order Method:
Quantity

 

No sales tax for orders in the USA

 

We provide world class technical support

 

3-year standard warranty (should last decades)

Cadillac XLR Top Lift Pump Assembly p/n 88958028. The pump return ships filled with fluid. Please be sure to drain all fluid from your original pump and put plenty of absorbent material around the hydraulic line ports (where you pulled out the sixteen hoses) in order to soak up any residual fluid. Wrap in one or more large plastic bags, buffer your parcel well, and we sure to have a sturdy package. These pumps are hard to replace, so you don't want yours getting lost in shipping to us. Remove the mounting brackets.

 You send in your malfunctioning convertible hydraulic pump, and we rebuild it for $800*.

* there may be a surcharge for unusual damage from abuse, such as DIY repair attempts or fires, missing parts, or parts seriously damaged during transport. A shattered reservoir will cost you an extra $200, because it is not available from GM any more. A corroded motor does not incur a surcharge.

We service the electric motor, wiring harness, temperature sensor, noise suppression circuitry, clutch, rotating pump assembly, internal valves and electric solenoids. Of course, we replace and upgrade the internal seals in the pump. We make sure that all internal components are to spec, and replace any worn internal parts. The pump goes through extensive testing after the rebuild. It may not look as pretty as a brand new one, but we are certain that the inside of the pump is better than new - rebuilt and upgraded to last longer and exceed factory specs.

This pump return ships via FedEx 2-Day Service with signature required.

The hydraulic pump unit is located under the LH taillight, inside the trunk. It is easy to swap. The hydraulic system also utilizes two main hydraulic cylinders 88957085, two deck lid cylinders 88957088, and three tonneau cylinders 88957086.  One latch cylinder 88957089 is used to latch the hard top with the header.
The hydraulic pump is comprised of a pump block, fluid reservoir, and a 12-Volt DC electric motor.  The fluid reservoir (with level indications on the side) is attached to the pump with a hose clamp.  Cadillac recommends that you use Univis HVI 26 hydraulic fluid.  Here at Top Hydraulics, inc. we use FeBi 02615 fluid in all of our hydraulic systems. 

Interactive Diagram:

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

88958028

Specific References

Related Products:

Upgraded Single Hydraulic Line #35 manufactured by Top Hydraulics, Inc. for your Cadillac XLR Convertible. 

This line runs from the bottom end of the left side Stowage Compartment Cylinder to the Hydraulic Pump.

Hoses 31 and 35 are sold together by Cadillac as P/N 88957095.

This listing is for a single hose #35 only.

Price
$149.99
Quick view


Price shown includes $500 refundable core deposit.
This is a special core exchange option only: We ship the hydraulic pump from our stock, filled with fluid, for simple swap into your vehicle.  Send us back your malfunctioning pump for refund of your $500 core deposit*.
Core exchange is currently available only to US customers due to limited inventory.

Cadillac Top Lift Pump Assembly p/n 88958028

Price
$1,450.00
Quick view

Upgraded Single Hydraulic Line #52 manufactured by Top Hydraulics, Inc. for your Cadillac XLR Convertible. 

This line runs from the bottom end of the Front Latch Cylinder to the Hydraulic Pump.

This listing is for a single hose #52 only.

Price
$189.99
Quick view

Upgraded Single Hydraulic Line #11 manufactured by Top Hydraulics, Inc. for your Cadillac XLR Convertible. 

This line runs from the shaft end of the left side Main Lift cylinder to the Hydraulic Pump.

Hoses 11 and 12 are sold together by Cadillac as P/N 88957093.

This listing is for a single hose #11 only.

Price
$149.99
Quick view

Rebuild/Upgrade Service for single '03-'09 Cadillac XLR Folding Top Main Lift Hydraulic Cylinder for the convertible top. The XLR has two of these cylinders. They actuate the hard top frame, raising or lowering your top. They are mounted in the hard top frame.

Send in your part for rebuild service, or order directly from our stock with core exchange for $200 + $220 deposit.

Please see note about potential rust damage in the detailed description below. 

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

P/N 88957085

Price
$150.00
Quick view

Upgraded Single Hydraulic Line #62 manufactured by Top Hydraulics, Inc. for your Cadillac XLR Convertible. 

This line runs from the bottom end of the Center Stowage Compartment Cylinder to the Hydraulic Pump.

Hoses 61 and 62 are sold together by Cadillac as P/N 88957095.

This listing is for a single hose #62 only.

Price
$149.99
Quick view

Upgraded Hydraulic Line #37 manufactured by Top Hydraulics, Inc. for your Cadillac XLR Convertible. 

This line runs from the bottom end of the right side Stowage Compartment Cylinder to the Hydraulic Pump.

Hoses 33 and 37 are sold together by Cadillac as P/N 88957094.

This listing is for a single hose #37 only.

Price
$149.99
Quick view

Upgraded Single Hydraulic Line #13 manufactured by Top Hydraulics, Inc. for your Cadillac XLR Convertible. 

This line runs from the shaft end of the right side Main Lift cylinder to the Hydraulic Pump.

Hoses 13 and 14 are sold together by Cadillac as P/N 88957092.

This listing is for a single hose #13 only.

Price
$149.99
Quick view

Upgraded Single Hydraulic Line #44 manufactured by Top Hydraulics, Inc. for your Cadillac XLR Convertible. 

This line runs from the bottom end of the right side Deck Lid Cylinder to the Hydraulic Pump.

Hoses 43 and 44 are sold together by Cadillac as P/N 88957090.

This listing is for a single hose #44 only.

Price
$149.99
Quick view

Rebuild/Upgrade Service for one '03-'09 Cadillac XLR Decklid (Trunk Lid) 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 inside, with an expected service life of 30-50 years.

Send in your part for rebuild service, or order directly from our stock with core exchange for $200 + $220 deposit.

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

Please see note about potential rust damage in the detailed description below.

P/N 88957088

Price
$150.00
Quick view

Upgraded Single Hydraulic Line #12 manufactured by Top Hydraulics, Inc. for your Cadillac XLR Convertible. 

This line runs from the bottom end of the left side Main Lift cylinder to the Hydraulic Pump.

Hoses 11 and 12 are sold together by Cadillac as P/N 88957093.

This listing is for a single hose #12 only.

Price
$149.99
Quick view

Upgraded Single Hydraulic Line #43 manufactured by Top Hydraulics, Inc. for your Cadillac XLR Convertible. 

This line runs from the shaft end of the right side Deck Lid Cylinder to the Hydraulic Pump.

Hoses 43 and 44 are sold together by Cadillac as P/N 88957090.

This listing is for a single hose #43 only.

Price
$149.99
Quick view

Upgraded Single Hydraulic Line #33 manufactured by Top Hydraulics, Inc. for your Cadillac XLR Convertible. 

This line runs from the shaft end of the right side Stowage Compartment Cylinder to the Hydraulic Pump.

Hoses 33 and 34 are sold together by Cadillac as P/N 88957094.

This listing is for a single hose #33 only.

Price
$149.99
Quick view

Upgraded Single Hydraulic Line #14 manufactured by Top Hydraulics, Inc. for your Cadillac XLR Convertible. 

This line runs from the bottom end of the right side Main Lift cylinder to the Hydraulic Pump.

Hoses 13 and 14 are sold together by Cadillac as P/N 88957092.

This listing is for a single hose #14 only.

Price
$149.99
Quick view

Upgraded Single Hydraulic Line #31 manufactured by Top Hydraulics, Inc. for your Cadillac XLR Convertible. 

This line runs from the shaft end of the left side Stowage Compartment Cylinder to the Hydraulic Pump.

Hoses 31 and 32 are sold together by Cadillac as P/N 88957095.

This listing is for a single hose #31 only.

Price
$149.99
Quick view

Upgraded Single Hydraulic Line #41 manufactured by Top Hydraulics, Inc. for your Cadillac XLR Convertible. 

This line runs from the shaft end of the left side Deck Lid Cylinder to the Hydraulic Pump.

Hoses 41 and 42 are sold together by Cadillac as P/N 88957091.

This listing is for a single hose #41 only.

Price
$149.99
Quick view