SKU: 69084373903

Seastar Cylinder O/B Fm Yam Hpdi & 4St Hc5358-3

Sale price$484.61 Regular price$538.45
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Ships within 48 hours · Estimated delivery Aug 11 - Aug 16

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Description

Seastar Cylinder O/B Fm Yam Hpdi & 4St Hc5358-3Seastar Cylinder O B Fm Yam Hpdi & 4St Hc5358 3 Updated cylinders fit the same applications as the prior models. Improvements over previous models include: Updated styling, a more robust barrel, new sealing systems and materials with excellent resistance to compression set, and new adjustable stainless steel O ring fittings (ORB). Front Mount cylinders are balanced and the most commonly used. Recommendations: Single Engines: Single Cylinder: 350 HP

Seastar Cylinder O/B Fm Yam Hpdi & 4St Hc5358-3

Updated cylinders fit the same applications as the prior models. Improvements over previous models include: Updated styling, a more robust barrel, new sealing systems and materials with excellent resistance to compression set, and new adjustable stainless steel O-ring fittings (ORB). Front Mount cylinders are balanced and the most commonly used. Recommendations:
Single Engines:
Single Cylinder: 350 HP-Max, 65 MPH-Max HC53xx Cylinder (See note 1)
Single Cylinder: 350 HP-Max, HC63xx Pro or HC6845S (See note 2)

Dual Engine Non-Counter Rotating:
Single cyl: 450 hp max, 55 MPH max. HC53xx Cylinder, HO60xx Tiebar
Dual cyl: 600 hp max, 55 MPH max. HC53xx Cylinders, HO60xx Tiebar

Dual Engine Counter Rotating:
Single cyl: 600hp max, 55 MPH max. HC53xx Cylinder, HO60xx Tiebar
Dual cyl: 600 hp max, 55 MPH max. HC53xx Cylinders, HO60xx Tiebar

Triple Engine One with Counter Rotating:
Dual cyl: 900 hp max, 55 MPH max. HC53xx Cylinder, HO60xx Tiebars
Triple cyl: 900 hp max, 55 MPH max. HC53xx Cylinders, HO60xx Tiebars

Note 1. SeaStar Solutions has specific steering equipment for boats that are driven aggressively, used in severe conditions or with more than 300 HP per engine.
Note 2. HC63xx PRO Cylinders are designed for all those critical high speed, single outboard boats, such as Bass, Flats & other performance boats capable of speeds in excess of 65 mph. For optimal performance we recommend to combine the use of SeaStar Pro Helms and Hoses for high speed single engine applications.
Before ordering, determine the best application for the boat based on hull design, speed, and usage. For higher speed single engine applications, Seastar recommends the use of Seastar PRO cylinders.

WARRANTY INFORMATION

We are an authorized reseller for all products listed on our website. Please contact the manufacturer for warranty info.

SPECS

UPC:
731957916846
MPN:
HC5358-3
Type:
Front Mt.
Description:
Yamaha 4-stroke
Mount:
Pivot
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 69084373903

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Shawn
West Palm Beach, US
★★★★★ 1
Low quality. Recommend something from a better brand.
Low quality. Seemed fine until the first one I ordered one of the terminals broke off with very little tightening force. The replacement i had ordered worked for a few days then quit working altogether. Overall disappointed.
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Reviewed in the United States on April 8, 2026
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Ailyn
Massapequa, US
★★★★★ 5
Bueno
Lo recomiendo
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Reviewed in the United States on March 21, 2026
J
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J. F. Aviles Sr.
Carnegie, US
★★★★★ 5
Good Relay
Works very well
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Reviewed in the United States on August 27, 2024
P
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Pete l.
Cuba, US
★★★★★ 3
Functional. Be careful when tightening nuts...strips very easy
Quality is questionable. The poles will strip way to easy. So be careful when fighting down. I had to use a stack of washers on top of wire to keep the nut tight. As far as functionality goes ..been doing great for over a month.
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Reviewed in the United States on March 6, 2025
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Parish L. Wilson
Whiting, US
★★★★★ 5
Well needed
Great for the price
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Reviewed in the United States on January 28, 2026

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