Dometic HF5501 Outboard Fitting Kit, Use for NPT National Pipe Thread Helm Pumps
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The Dometic HF5501 Outboard Fitting Kit enables installation of a 2nd station helm or an autopilot pump into an existing Dometic outboard steering system. This kit is intended for NPT National Pipe Thread helm pump connections and includes the required tees, helm fittings, fill plug, and 3/8" nylon tubing to complete the added-station plumbing.
Key Features
- Enables add-a-station helm or autopilot pump integration into an existing Dometic outboard hydraulic steering system
- Built for NPT (National Pipe Thread) helm pump connection planning
- Kit contents include: tees, helm fittings, non-vent fill plug, and 25' of 3/8" nylon tube
- Includes fittings that interface 3/8" tube lines with 1/4" and 3/8" NPT connections as part of the outboard add-station plumbing
Product Compatibility
- Dometic/SeaStar outboard hydraulic steering systems
- Add-a-station installations (2nd helm)
- Autopilot pump integration for outboard hydraulic steering
Product Details
- Title: Dometic HF5501 Outboard Fitting Kit, Use for NPT National Pipe Thread Helm Pumps
- Kit purpose: Add a 2nd station helm or an autopilot pump to an outboard steering system
- Includes (as listed):
- - 2ea HF5531 Tee - 3/8" Tube (M), 1/4" NPT (M), 3/8" Tube Ctr (M)
- - 4ea HF5528 Helm Fitting - 1/4" NPT (M), 3/8" Tube (M)
- - 1ea HA5432 No-Vent Fill Plug
- - 25' HT5092 3/8" Nylon Tube
Parts Desk Insights
Best Use Case: Use HF5501 when you’re planning an outboard hydraulic add-station (2nd helm) or routing for an autopilot pump and the helm pump connection strategy is based on NPT (National Pipe Thread) fittings.
Common Issues: Common install delays come from hose and routing planning—review your outboard steering hose routing before cutting or changing lines, and confirm you’re using the correct outboard add-station fitting kit for your helm pump type. Also verify that the non-vent fill plug (HA5432) and the supplied 3/8" nylon tube are used for the appropriate compensating/fill plumbing per your system diagram.
Related Products & Accessories
- Browse Steering Systems - Find related Dometic/SeaStar steering and controls parts for multi-station and autopilot integrations.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 1-3 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
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