Dometic HC5358-3 Front Pivot Mount Outboard Cylinder — 8" Stroke, 8.34 cu.in.
Free returns on all eligible orders
You have 30 days to request a return. All sale items are final sale.
The Most Popular Front Mount Cylinder for Outboard Steering
The Dometic HC5358-3 is an 8" stroke, 8.34 cubic inch front pivot mount hydraulic steering cylinder — the most widely used configuration for outboard engine installations. Its balanced front mount design delivers smooth, responsive steering control across a wide range of single and multi-engine setups.
Key Features
- 8" stroke, 8.34 cubic inch displacement
- Front pivot mount (balanced) configuration
- Updated styling with a more robust barrel over previous models
- Advanced sealing system with excellent resistance to compression set
- Adjustable stainless steel ORB (O-Ring Boss) fittings for secure, leak-free connections
- Part number ending in "-3" indicates updated ORB-compatible model
Applications
- Single engine: Up to 350 hp, 65 mph max
- Dual engine (non-counter-rotating): Up to 450 hp, 55 mph max (single cylinder) or 600 hp (dual cylinder)
- Dual engine (counter-rotating): Up to 600 hp, 55 mph max (single or dual cylinder)
- Triple engine: Up to 900 hp, 55 mph max
Compatibility Note
This cylinder uses ORB (O-Ring Boss) fittings. Ensure your helm system is equipped with ORB-compatible fittings. Older NPT-based systems are not compatible without upgrading the fittings.
Parts Desk Insights
Best Use Case: The HC5358-3 is the go-to front mount cylinder for the majority of outboard steering applications — from single-engine cruisers to triple-engine setups. Its balanced design makes it the most versatile and commonly specified cylinder in the Dometic outboard range. For boats driven aggressively, used in severe conditions, or with more than 300 hp per engine, consult with a marine specialist to confirm the correct cylinder specification.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 3–4 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.