SeaStar BayStar Hydraulic Steering Kit HK4300-4 (No Hose) - Up to 150 HP
SeaStar BayStar Hydraulic Steering Kit HK4300-4 (No Hose) - Up to 150 HP
SeaStar BayStar Hydraulic Steering Kit HK4300-4

SeaStar Solutions

SeaStar BayStar Hydraulic Steering Kit HK4300-4 (No Hose) - Up to 150 HP

$1,065.59 $887.99 USD
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The SeaStar BayStar Hydraulic Steering Kit (HK4300-4) brings the comfort of hydraulic steering to everyday boats at an affordable price. It's made for most single-outboard boats up to 150 HP, including runabouts and inflatables, and it's a popular upgrade from…

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Key Features
For most single-outboard boats up to 150 HP
Affordable hydraulic steering comfort
Patented no-feedback lock valves
5 turns lock-to-lock for easy handling
Compact cylinder fits smaller motor wells
Great upgrade from cable steering

What's in the Box
BayStar 1.4 front mount helm, ORB (HH4314-3)
BayStar compact cylinder, ORB (HC4645-3)
Helm fill kit (HA5438)
SeaStar hydraulic steering fluid (HA5430H)

Sold Separately
SeaStar hydraulic hose kit (choose the length that fits your boat)
DimensionsDash cutout: 3" · Minimum splashwell width: 21" · Turns lock-to-lock: 5
CompatibilitySingle outboard engines up to 150 HP with ABYC standard tilt tubes. Not for high-performance boats.

Force: 1985–current, 90–150 HP
Honda: 1992–current, 30–90 HP · 2001–current, 150 HP · 2003–current, BF135 · 2010–current, 115–150 HP
Johnson/Evinrude: 1991–current, 40–150 HP · 1997–current, 75–150 HP FICHT
Mercury/Mariner: 1984–current, 75–150 HP
Nissan: 1990–current, 120–140 HP
Suzuki: 1986–current, 150 HP · 1987–2002, 115–140 HP* · 1990–2002, 90–100 HP · 1998–current, 40–70 HP 4-Stroke*
Tohatsu: 1990–current, 40–140 HP
Yamaha: 1998–current, 40–50 HP* · 1998–current, 60 HP* · 1986–current, 70–90 HP* · 1997–current, 80–150 HP 4-Stroke · 2014–current, F115B 4-Stroke
Yanmar: 1990–current, 27–36 HP

*May require a spacer kit, or trimming of the engine clamp brackets. See the owner's manual or ask us.
InstallationInstallation instructions and helm fill kit included. Hoses sold separately. Professional installation recommended.
VendorSeaStar Solutions
SKUTEL-HK4300-4
Availability In Stock
Does this kit include hoses?
No. Hoses are sold separately so you can choose the right length for your boat. We're happy to help you pick the right SeaStar hose kit.

What boats is BayStar for?
Most single-outboard boats up to 150 HP, like runabouts and inflatables. Check the engine list in the Specifications tab.

Can I use BayStar on a bass boat or other high-performance boat?
No. BayStar isn't designed for high-performance boats. Look at the SeaStar Pro kit instead.

Will it work on a twin-engine boat?
No. BayStar is for single-outboard boats. For twins, look at the SeaStar HK6400-4 kit.

Can I upgrade from cable steering?
Yes, this is one of the most popular upgrades from mechanical cable steering. You'll need a 3" dash cutout and at least 21" of splashwell width.

What's the difference between BayStar and SeaStar?
BayStar is SeaStar's value line for single outboards up to 150 HP. SeaStar kits handle higher horsepower and multi-engine boats.

Not sure which kit is right for your boat?
Our team will confirm compatibility before you order. Click Speak with an Expert or email support@tidalstandard.com.
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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.

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Free shipping on all orders. Large systems ship via freight with white-glove delivery available.

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Our specialists are available 7 days a week to help with selection, installation, and setup.