41100798 Tunnel | Genuine Volvo Penta Part
41100798 Tunnel | Genuine Volvo Penta Part
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Available from Volvo Penta international
Typically reaches our store in 10–14 business days
Availability checked daily with Volvo Penta
✓ Authorised Volvo Penta Dealer · Genuine Volvo Penta parts · Ships Australia-wide
🔧 Product Description
Genuine Volvo Penta tunnel from the Industrial and Marine Equipment group, weighing 2.43 kg. It supersedes part number 41100411 and is the smaller of the two tunnels here, against the 6.51 kg tunnel 41100804.
⚙️ Key Features
- 2.43 kg
- Supersedes 41100411
- Smaller of the two tunnels, against 6.51 kg 41100804
- Industrial and Marine Equipment group
🔌 Function
Forms the through-hull tube the thruster propeller runs in, ducting the flow from one side of the hull to the other.
⚠️ Common Signs of Failure
- Thrust falling away as fouling builds inside the tube
- Growling or cavitation noise in the tunnel
- Gelcoat cracking or crazing where the tunnel meets the hull
- Weeping or damp inside the locker around the tunnel bond
- Marine growth or barnacles inside the bore
🛠️ Service Notes
- No bore diameter or length is published, so measure the existing tunnel and confirm the unit it belongs to before ordering
- It is a bulky item - allow for oversize carriage
- Bonding a tunnel into a hull is structural work below the waterline and should be done to the boatbuilder's specification
🔄 Supersession & Cross Reference
OEM Supersession Chain
- 41100798 → Supersedes 41100411
OEM / Related Numbers
- 41100411 earlier number superseded by this part
📦 Condition
- Genuine Volvo Penta part
- Brand new
- Supplied in original or equivalent packaging
Shipping & Delivery
Shipping & Delivery
Flat-rate shipping Australia-wide — $14.99 per order, no matter how many parts you add. Orders dispatch from our Kadina, South Australia store. Need it urgently or want to collect in person? Call us on 0412 532 984 before ordering.
Returns & Warranty
Returns & Warranty
14-day change-of-mind returns — if it's not right or you ordered the wrong part, send it back within 14 days in new, unused condition for a refund or exchange. Manufacturer warranties apply to new parts. Full details in our Refunds & Returns policy.
Not sure this fits?
Not sure this fits?
Ask us before you buy — we check part numbers and fitment every day. Call 0412 532 984 (Mon–Fri 8.30am–4.30pm) or message us through the contact page with your engine or vehicle details.
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