【High Quality Material】Made from quality billet aluminum, corrosion resistance, anti-rust, sturdy and durable.

【Function】Used to install the pivot/front hydraulic steering cylinders for seastar. This seal kit fits for most outboard boats with single or twin engines.

【Benefits】Can help you repair leaking/weeping cylinder seals, rebuild the outboard front mount hydraulic cylinders, prevent the leaking of fluid and optimizing efficient performance.

【Compatible】HS5157 seal kit fits for front mount cylinder parts: HC5340, HC5341, HC5342, HC5343, HC5344, HC5345, HC5346, HC5347, HC5348, HC5358, HC5365, HC5375, HC5394, HC5445, HC6750, HC6751, HC6752, HC6753, HC6754, HC6755.

【Package Includes】 2 x Seal Gland, 1 x Pin Wrench, 1 x Seal Gland Assembly Guide Tool, 8 x "O" Ring.

HS5157 Front Mount Hydraulic Steering Cylinder Seal Kit with Pin Wrench

A Must Seal Kit

It's essential to check the cylinder rod to see whether it has scratches, nicks, leak or damages in anyway.
If damaged, the complete cylinder must be replaced.
Failure to replace a damaged steering cylinder will result in seal failure and possible loss of steering.
Do not remove shaft from steering cylinder. Bleeding the system to remove any air, compatible with seastar Hydraulic Oil HA5340 only.
Check for smooth operations and full travel of the cylinder. Check for no leaking.
Replaces damaged or old parts on your boat;
Model Number: HS5157.

How to rebuild an outboard steering cylinder:


1. Loosening the Seal Gland Turn the outboard hard to port; Place the pin wrench (supplied in the seal kit) in the holes of a gland, and use a 5⁄8-inch box wrench on the nut on the port end of the piston rod. Turn counterclockwise on the pin wrench with opposite pressure on the box wrench to loosen the seal gland.	2. Removing the Support Bracket Use a 3/4-inch socket wrench to remove the nut and washer securing the support bracket to the support rod. Do the same to the piston rod nut and washer. Use wrenches on the opposite ends to keep the rods from turning. With hardware gone, pull off the support bracket.	3. Removing the Old Seal Gland Finish unscrewing the old seal gland. If you can't grip it well with your hand, use the pin wrench. Slide it off the piston rod. A small amount of hydraulic fluid will leak out of the cylinder, but having the outboard hard over to port should minimize this.


4. Installing the New Seal Gland Place the tapered guide tool from the kit on the end of the piston rod and lubricate it and the piston rod well with oil or grease. Carefully slide the new seal gland over the guide and onto the piston rod until it reaches the cylinder. Screw the seal gland into the cylinder, but don't tighten it yet. Remove the guide tool; It's not part of the final assembly, but you will need it for the other side.	5. Reinstalling the Support Bracket Reconnect the support bracket to the support rod and piston rod and replace the washers and nuts, tightening the nuts against the washers. You may need to use wrenches on the opposite nuts to tighten sufficiently.	6. Tightening the New Seal Gland Use the pin wrench to tighten the new seal gland while using a 5⁄8-inch box wrench on the starboard end of the piston rod for counter torque. To replace the starboard seal gland, turn the outboard hard to starboard and repeat steps 1 through 6.

Quick Tip:

Use the adjusting nut inboard of the starboard support bracket to remove steering slop.
Once the tension screw is loosened on this nut, turn it counterclockwise by hand to remove any slop, and then retighten the tension bolt.

This Front Mount Hydraulic Steering Cylinder Seal Kit is great for marine applications.

For HC5345, HC5340 and HC5342 (threaded end gland)
For HC5347 (pivot cylinder, for Honda 115-130 specific),
For HC5348 (pivot cylinder, for OMC 77-90 specific),
For HC5365 (compact cylinder (threaded end gland)),
For HC5394 (for searay compact cylinder (obsolete) (threaded gland)).

Package Includes:

2 x Seals Gland/Caps (one for each end of cylinder body)
1 x Pin Wrench Tool (Needed to remove seal caps)
8 x O-rings.

Contact us:

If you meet any problem after receiving our product, please feel free to contact us. We will try our best to solve your problem.

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HS5157 Front Mount Hydraulic Steering Cylinder Seal Kit with Pin Wrench

How to rebuild an outboard steering cylinder:

1. Loosening the Seal Gland

2. Removing the Support Bracket

3. Removing the Old Seal Gland

4. Installing the New Seal Gland

5. Reinstalling the Support Bracket

6. Tightening the New Seal Gland

Quick Tip: