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Heavy-duty stainless steel outboard engine bracket — 140-300 HP
€2.294,00
incl. VAT 25.5%
Heavy-duty stainless steel engine support bracket — auxiliary motor mount for outboards from 140 to 300 HP. Marine-grade AISI 316 stainless, designed to hold a serious second engine on the transom or swim platform.
- Rated for outboards 140-300 HP — covers most twin-engine secondary motors
- Marine AISI 316 stainless — no rust, no maintenance, lifetime construction
- Through-bolt mounting to transom — heavy stainless hardware included
- Robust frame engineered for full thrust load + heeling forces
Use cases: Twin-engine installs needing a beefier secondary mount, replacing tired aluminium brackets, fishing-boat outboard upgrades. €2585 reflects industrial-grade engineering — this isn't a generic motor mount.
In stock
91 % of orders ship within 3 business days
Not sure this fits your boat? Ask us before you order
Free shipping on orders over €100 · Free returns within 14 days
Freight delivery · not covered by free shipping, cost is calculated at checkout
Hazardous goods · pickup only at Club House Suomenoja (Espoo, Finland)
Use cases
Twin-engine secondary mount
For boats running twin outboards, this bracket holds the secondary motor while the main is on the transom. Stainless construction handles the higher HP loads.
Heavy outboard upgrade
Upgrading from 100 HP to 200+ HP? The old aluminium bracket is rated for the smaller motor. This stainless bracket handles the bigger engine without fatigue cracking.
Replacement of corroded brackets
Aluminium brackets corrode in saltwater (5-7 year lifespan). AISI 316 stainless lasts decades — one bracket purchase, lifetime install.
Specifications
For outboard up toFrom 140 to 300 HP
BrandOsculati
TypeAuxiliary engine support bracket
Engine compatibilityOutboards 140-300 HP
MaterialAISI 316 stainless steel
HardwareStainless steel through-bolts (included)
MountTransom or extended swim platform
Made inItaly
Country of originItaly
Installation guide
1
Confirm engine HP compatibility
Rated for 140-300 HP outboards. Smaller outboards (<140 HP) are over-bracketed and waste budget; larger (>300 HP) exceed structural rating.
2
Locate the transom mount
Bracket bolts through the transom — locate on a structural area (transom knee, stringer extension). Avoid mounting through unreinforced fibreglass.
3
Drill and bed bolt holes
Use the supplied stainless bolts. Bed each hole in marine sealant (3M 4200 or A-Tec) to prevent water ingress to transom core.
4
Mount the engine
Secure the outboard to the bracket using its standard mounting bolts. Torque to engine manufacturer spec — usually 35-50 ft-lb.
5
Wire control cables
Run throttle/shift cables and battery wiring along the bracket frame. Use protective conduit for wire passes.
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