SeaStar Solutions
SeaStar HC5312-3 Inboard Steering Cylinder (BA125-7ATM)
The SeaStar HC5312-3 (BA125-7ATM) is an inboard hydraulic steering cylinder for single and dual rudder vessels. Two-axis articulation makes it easy to mount, and it has an easy autopilot interface. It's a regular-duty aluminum cylinder that comes with bleeder fittings…
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Genuine products · Full manufacturer warranty
Inboard steering cylinder for single and dual rudder vessels
Two-axis articulation for easy mounting
Easy autopilot interface
Regular-duty aluminum construction
Bleeder fittings included
Sold Separately
SeaStar helm, hoses and hydraulic steering fluid
| Dimensions | Model: BA125-7ATM · Length: 24.8" · Weight: 5.5 lb |
| Compatibility | Inboard boats with single or dual rudders. Works with SeaStar hydraulic helms and most autopilot systems. |
| Installation | Bleeder fittings included. Mounting depends on your rudder/tiller arm setup. Professional installation recommended. |
| Vendor | SeaStar Solutions |
| SKU | TEL-HC5312-3 |
| Availability | In Stock |
It's designed for an easy autopilot interface. Tell us your autopilot model and we'll confirm.
Can I use it on a twin-rudder boat?
Yes. It's designed for single and dual rudder vessels.
Is this the right size cylinder for my boat?
Inboard cylinder sizing depends on your rudder size, tiller arm and boat. Send us your boat details and current cylinder and we'll help.
Does it come with hoses or fluid?
No. Helm, hoses and SeaStar steering fluid are sold separately.
Need help?
Click Speak with an Expert or email support@tidalstandard.com.
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Manufacturer Warranty
All systems come with a full manufacturer warranty. Coverage varies by brand and product — contact us for details.
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Free shipping on all orders. Large systems ship via freight with white-glove delivery available.
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