SeaStar Solutions
SeaStar Rear Mount Hydraulic Helm 1.7 (HH5261-4)
The SeaStar Rear Mount 1.7 Hydraulic Helm (HH5261-4) mounts behind the dash for a clean, low-profile install. It gives smooth, no-feedback hydraulic steering on outboard and inboard boats rated up to 350 HP (700 HP combined for counter-rotating twins), at…
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Genuine products · Full manufacturer warranty
1.7 cu. in. displacement
Rear (behind-dash) mount for a clean dash
No-feedback hydraulic steering
Rated up to 350 HP (700 HP combined for counter-rotating twins), up to 60 MPH
Gen 4 design: less chatter and flow noise, tighter steering
More durable check valve for trailering
Mounting hardware included
Sold Separately
SeaStar cylinder, hoses and hydraulic steering fluid
| Dimensions | Displacement: 1.7 cu. in. · Mount: rear (behind dash) |
| Compatibility | Outboard and inboard applications up to 350 HP (700 HP combined for counter-rotating twins), up to 60 MPH. Compatible with existing SeaStar hydraulic steering systems. Use SeaStar hydraulic steering fluid only. |
| Installation | Rear (behind-dash) mount. Mounting hardware included. Professional installation recommended. |
| Vendor | SeaStar Solutions |
| SKU | S5RHH52614 |
| Availability | In Stock |
A rear mount helm installs behind the dash for a clean, low-profile look. A front mount helm bolts through the front of the dash.
Should I choose the 1.7 or the 2.0?
The 1.7 gives a lighter feel with more turns lock-to-lock. The 2.0 (HH5263-4) gives quicker steering with fewer turns. Tell us your cylinder and we'll help you choose.
Does it include a cylinder or hoses?
No. This is the helm only, with mounting hardware. You'll need a SeaStar cylinder, hoses and SeaStar steering fluid.
Not sure which helm is right for your boat?
Our team will confirm compatibility before you order. Click Speak with an Expert or email support@tidalstandard.com.
Why buy from Tidal Standard
Every purchase is backed by our quality guarantee.
Manufacturer Warranty
All systems come with a full manufacturer warranty. Coverage varies by brand and product — contact us for details.
Free Shipping
Free shipping on all orders. Large systems ship via freight with white-glove delivery available.
Expert Support
Our specialists are available 7 days a week to help with selection, installation, and setup.