

Service of all moving parts with three years warranty. The pump goes through extensive testing of flow, pressure in both directions, and extended load testing to make sure it exceeds the manufacturer's specs before we ship it back.
No sales tax for orders in the USA
We provide world class technical support
3-year standard warranty (should last decades)
You send in your malfunctioning convertible hydraulic pump, and we rebuild it for $300.
We service the electric motor and the internal valves, plus upgrade internal seals in the pump and make sure the pump's pistons are within tolerance. The electric motor gets replaced if necessary. The pump goes through extensive testing of flow, pressure in both directions, and extended load testing to make sure it exceeds the manufacturer's specs before we ship it back.
You send in your malfunctioning convertible hydraulic pump first to be rebuilt and upgraded.
Chrysler part number 68027037AA
This hose goes from the pump to the shaft end of the right Rear Bow cylinder. Each hose has a two-digit number stamped on it in white or red ink near the metal fitting. This number is also stamped on the cylinder port where the line enters the cylinder, and on the pump retaining plate where the line enters the pump.
This is a single hose #23 from hose assembly P/N: 5142634AA
(P/N 5142634AA corresponds to the pair of hoses #23 and #24)
This hose goes from the pump to the rear end of the bow lock cylinder. Each hose has a two-digit number stamped on it in white or red ink near the metal fitting. This number is also stamped on the cylinder port where the line enters the cylinder, and on the pump retaining plate where the line enters the pump.
You send in your Tonneau cover latch cylinder 05166559AA aka A 193 750 0183 (aka 1937500183 or A 193 750 01 83), and Top Hydraulics upgrades it with far superior seals, making it better than new!
-OR-
Order from our inventory with core exchange. (Core exchange option is subject to $30 surcharge plus $100 deposit.)
Please note: Latch mechanism not included. We ship you the cylinder only.
The OEM cylinders will all eventually fail due to chemical decay - Top Hydraulics upgrades the seals with far superior material.
Send in your left main lift cylinder to be upgraded, using the best seals available.
Expedited Core Exchange Option, where we ship a part from our inventory first, is $250 plus $200 deposit. (Currently available only in the US)
Core exchange is temporarily disabled until we have enough stock again to offer it - we have dozens of pairs out in the field and cores have coming back slower than expected…
P/N 5142639AA, sometimes marked 1757-030-A, 1757-030-B or 1757-038-B
You send in your malfunctioning convertible hydraulic pump first to be rebuilt and upgraded.
Chrysler part number 68027037AA
This hose goes from the pump to the bottom end of the Tonneau Cover Lift cylinder. Each hose has a two-digit number stamped on it in white or red ink near the metal fitting. This number is also stamped on the cylinder port where the line enters the cylinder, and on the pump retaining plate where the line enters the pump.
This is a single hose #34 from hose assembly P/N: 5142635AA
(P/N 5142635AA corresponds to the pair of hoses #33 and #34)
This hose goes from the pump to the blunt end of the Tonneau Cover Lock cylinder. Each hose has a two-digit number stamped on it in white or red ink near the metal fitting. This number is also stamped on the cylinder port where the line enters the cylinder, and on the pump retaining plate where the line enters the pump.
This is a single hose #32 from hose assembly P/N: 5142637AA
(P/N 5142637AA corresponds to the pair of hoses #31 and #32)
This hose goes from the pump to the side of the rear bow lock cylinder. Each hose has a two-digit number stamped on it in white or red ink near the metal fitting. This number is also stamped on the cylinder port where the line enters the cylinder, and on the pump retaining plate where the line enters the pump.
Special option: Core exchange. Price includes $900 deposit. This means you pay $1300 plus $900 deposit plus shipping, then you get a rebuilt & upgraded set of cylinders from Top Hydraulics' inventory first, then you ship back your original set to recover your deposit. The deposit gets refunded in full if the cores do not have serious damage to the metal parts or missing components.
Expedited Core Exchange Option where Top Hydraulics ships parts from our inventory first is $500 plus a $300 Refundable Core Charge.
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 $450 core refund. You get a pump that has been rebuilt to outlast and outperform brand new ones. Chrysler part number 68027037AA.
This hose goes from the pump to the shaft end of the Tonneau Cover Lift cylinder. Each hose has a two-digit number stamped on it in white or red ink near the metal fitting. This number is also stamped on the cylinder port where the line enters the cylinder, and on the pump retaining plate where the line enters the pump.
This is a single hose #33 from hose assembly P/N: 5142635AA
(P/N 5142635AA corresponds to the pair of hoses #33 and #34)
This hose goes from the pump to the bottom end of the left Main Lift cylinder. Each hose has a two-digit number stamped on it in white or red ink near the metal fitting. This number is also stamped on the cylinder port where the line enters the cylinder, and on the pump retaining plate where the line enters the pump.
This is a single hose #12 from hose assembly P/N: 5142632AA
(P/N 5142632AA corresponds to the pair of hoses #11 and #12)
This hose goes from the pump to the shaft end of the right Main Lift cylinder. Each hose has a two-digit number stamped on it in white or red ink near the metal fitting. This number is also stamped on the cylinder port where the line enters the cylinder, and on the pump retaining plate where the line enters the pump.
This is a single hose #13 from hose assembly P/N: 5142631AA
(P/N 5142631AA corresponds to the pair of hoses #13 and #14)
The PT Cruiser convertible has two lift cylinders for the convertible top. Top Hydraulics' seal material is far superior to the OEM's.
Send in your cylinder(s) to be rebuilt. Rebuild service is $160 per cylinder plus shipping.
-OR-
Order from our stock with core exchange ($200 per cylinder shipping first from our inventory, plus $150/ea deposit plus shipping).
Select the order method below and the price will display accordingly.
There are three rows of number engraved on the cylinder. The middle row identifies the part with the following three being fully interchangeable:
1657-030-A
1657-030-B
1657-030-C
You send in your malfunctioning convertible hydraulic pump first to be rebuilt and upgraded.
P/N 5142638AA and similar. Mercedes p/n reference A193 800 00 30.