Vetus — Stern Thruster Tunnel Kit 185 mm GRP — VTS-STERN185P
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Vetus Stern Thruster Tunnel Kit STERN185P – 185 mm GRP
The Vetus STERN185P is a glass-reinforced plastic stern thruster tunnel for installing a compatible Vetus thruster at the transom. Paired with the right thruster, it adds stern manoeuvring control for docking, locks and tight marinas. Add a bow thruster too and you can counter wind and current at both ends of the boat.
This is the tunnel component only. It is not a complete powered thruster.
Part Details
- Part number: STERN185P
- Brand: Vetus
- Product type: Stern thruster tunnel kit
- Construction: Glass-reinforced plastic (GRP)
- Internal tunnel diameter: 185 mm (7-9/32 in.)
- Mounting position: Outside the transom, with the thruster motor installed inside the boat
- Condition: New
Compatible Applications
- Conventional thrusters: BOW60, BOW75, BOW95
- Hydraulic thruster: BOW95HYDR
- BOW PRO thrusters: BOWA0651, BOWA0761, BOWA0764, BOWB065, BOWB076, BOWB090, BOWB110, BOWB130
Confirm your complete thruster model and transom installation requirements before ordering. Tunnel diameter alone does not establish compatibility.
Installation Notes
Check transom thickness, internal clearance and mounting dimensions against the Vetus drawing. The specified mounting bolts, nuts and washers are sold separately.
View the Vetus STERN185P dimensions and drilling template (PDF)
When to Replace
Inspect the tunnel after any impact. Cracking, delamination or damage around the mounting area should be professionally assessed before further operation.
Technical FAQ
Does this include the thruster motor and propeller?
No. The STERN185P is the tunnel component. The thruster is purchased separately.
Will it fit any 185 mm thruster?
No. Use it only with the Vetus models listed above, and confirm the full model number.
Are mounting fasteners included?
No. The specified bolts, nuts and washers are sold separately.
Related Parts
- Vetus SDKIT185 extension kit: a separate accessory for shallow-draught installations
Parts Desk Insights
Best use case: Adding stern control to a boat that already has, or is getting, a compatible Vetus thruster, especially where docking in wind or current is a challenge.
Most common customer mistake: Ordering by tunnel diameter alone. Match the exact thruster model to the compatibility list, and remember the mounting hardware is sold separately.
Sizing and fitment guidance: Check transom thickness and internal clearance against the Vetus drawing before ordering. If you are installing on a shallow-draught boat and the propeller may not sit deep enough, look at the SDKIT185 extension kit.
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
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.