SeaStar HC5358-3 Outboard Front Mount Cylinder (225HP Four Stroke Yamaha)

(2 reviews) Write a Review
SKU:
HC5358-3
Condition:
New
  • SeaStar HC5358-3 Outboard Front Mount Cylinder (225HP Four Stroke Yamaha)
  • SeaStar HC5358-3 Outboard Front Mount Cylinder (225HP Four Stroke Yamaha)
  • SeaStar HC5358-3 Outboard Front Mount Cylinder (225HP Four Stroke Yamaha)
  • SeaStar HC5358-3 Outboard Front Mount Cylinder (225HP Four Stroke Yamaha)
MSRP: $1,124.97
$794.97
— You save $330.00
In Stock - Ships FREE Same Day (Order By 5pm EST M-F)

Description

SeaStar HC5358-3 Front Mount Hydraulic Outboard Steering Cylinder


The Dometic SeaStar HC53583 is a front-mount center-push steering cylinder designed for twin outboard engine applications with push-pull steering geometry between engines. Commonly used on Suzuki DF series, Yamaha, Evinrude/Johnson, and COX Diesel outboards, this cylinder offers robust, corrosion-resistant construction and precise steering control up to 700 horsepower combined.

With enhanced durability, improved hose routing, and compatibility with all SeaStar helm pumps and power assist systems, the HC5358-3 is ideal for center console boats, offshore fishing vessels, and high-performance cruisers.


Key Features & Benefits

  • Supports Up to 700 HP (Total Power, Counter-Rotating).
  • Independent Engine Tilt – Allows separate engine tilt control on multi-engine installations.
  • Robust & Corrosion-Resistant Design – Engineered to withstand repeated compression and harsh marine environments.
  • Upgraded Sealing System – New 8-hole end gland design and proprietary sealing system enhance durability and simplify servicing.
  • Positionable Stainless ORB Fittings – Upgraded from 1/4" NPT to -5 ORB stainless steel fittings for easier, leak-free installation and improved hose routing.
  • Smooth & Responsive Steering – Designed to work with all SeaStar helm pumps, including Power Assist systems.
  • Variable Lock-to-Lock Turns – Adjusts with helm selection to deliver a tailored steering response.
  • Warranty: 2 Year Limited
  • Made in Canada!

Will This Cylinder Work on My Boat?

Description Link
SeaStar Front Mount Cylinder Application Guide LINK (WEB)
Dometic SeaStar Hydraulic Parts Lookup LINK (WEB)
SeaStar Hydraulic Steering Selection Guide LINK (PDF)
Tech Support LINK (WEB)

Technical Specifications

  • Direct Replacement for the HC5358 (earlier generation; “-3” adds -5 ORB ports and internal upgrades)
  • Mount Style: Front Mount, Pivoting
  • Shaft Diameter: 0.75" (19mm)
  • Stroke Length: 8.00" (203mm)
  • Cylinder bore: 1.375 in (~35 mm)
  • Displacement (fluid volume): 8.34 cu in (136.6 cc)
  • Ports / fittings: Positionable stainless ORB hose fittings (-5 ORB); do not use NPT
  • Overall dimensions (approx.): width 21-3/4 in (552 mm), depth 4-7/8 in (124 mm), height 2-5/8 in (67 mm)
  • Weight (approx.): 9.5lbs
  • Included in the Box: Complete cylinder with fittings, HA5438 Filler Kit & Instruction Manual

 

 

Downloads & Resources

Description Link
SeaStar Front Mount Outboard Cylinder Installation Manual LINK (PDF)
SeaStar Front Mount Cylinder Fill and Bleeding Instructions LINK (PDF)
Dometic SeaStar Warranty Sheet LINK (PDF)
SeaStar Cylinder REBUILD SERVICE LINK (WEB)

Spare Parts for the HC5358-3

Part Link Part Link
Seal Kit without wrench HS5167 -5 ORB Fittings HF6004
Seal Kit with wrench HS5157 Ground Strap HA5477
Hydraulic Oil HA5430H Spacer Kit HO5090
Support Rod  HP6016 Adjusting Nut HP6034
Bleeder Kit HF5548    

Related Parts

Part Description Link to Part
PRO Front Mount Hydraulic Boat Cylinder HC6345-3
Universal front-mount cylinder for most single, twin, or triple outboard setup HC5345-3
Designed specifically for Suzuki twin engines with factory center-push brackets HC5348-3
Center-push cylinder for twin outboards on Suzuki, Yamaha, Evinrude, and COX HC5358-3
Heavy-duty front-mount cylinder for high-horsepower or high-torque outboards HC5445-3
Legacy front-mount cylinder for early Yamaha 2-stroke and 4-stroke V6 engines HC5347-3
Single Cylinder Tie Bar HO6001
Twin Cylinder Tie Bar HO6002
OMC Ficht/Suzuki Tie Bar HO6003
Twin Engine Dual Cylinder Drive Bracket HA5520
Twin Engine Single Cylinder Drive Bracket HA5521
Hardware Kit Adjustable Tie Bar HA5522

Other SeaStar Parts

Other Part Link to Part
Latest Gen Power Assists Power Assist Units
SeaStar Autopilots Auto Pilot Units
SeaStar PA/AP Combos Power Assist Autopilot Combos
Hose for SeaStar & BayStar SeaStar Hose
SeaStar & BayStar Helms SeaStar Helm Pumps
SeaStar & BayStar Cylinders SeaStar Cylinders
SeaStar Jackplates for SeaStar & BayStar SeaStar Jackplates

Questions?


  • No Sales Tax on Purchases Outside of California
  • Buy Now Pay Later with Affirm or PayPal Pay Later
  • FREE Ground Shipping to the Lower 48 States
  • Formerly Teleflex, SeaStar is now Dometic Marine
  • Seatech Marine Products, Inc. is an authorized dealer, and service center for Dometic Marine

International, USVI, Puerto Rican, Hawaiian & Alaskan Customers: We Ship Worldwide and USPS, Shipping Cost May Quote Too High on Our Website, Contact Us for A Quote.

View AllClose

Warranty Information

Seatech Marine Products is an authorized dealer for Dometic that distributes Seastar Products, this part has a 2 Year Limited Warranty from them. Please visit their website for full details: https://www.dometic.com/en-us/outdoor/support/warranty-statements
View AllClose

2 Reviews

  • 5
    SEASTAR HC5358-3 OUTBOARD FRONT MOUNT CYLINDER

    Posted by Carl on 27th Jul 2019

    installed in 30 min. no problems. perfect. took another 30 to bleed and I was on the water. if only all parts were as easy.

  • 5
    Cylinder

    Posted by Victor on 25th Jul 2019

    Seatech is always quick to deliver.

View AllClose