Removable Outboard Bracket Seagull 7HP 2-Stroke 4HP 4-Stroke MMS-434
mms-434
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Removable Auxiliary Outboard Bracket
Rated up to 7HP two-stroke or 4HP four-stroke
A removable transom bracket with a 240 × 200 × 40 mm mounting pad for a small Seagull or similar auxiliary outboard within the stated rating. Suitability depends on engine mass, thrust, transom structure and shaft-height geometry as well as horsepower.
Key Features
- Removable bracket arrangement
- 240 × 200 × 40 mm outboard pad
- 140 × 160 mm mounting bracket body
- Four pre-drilled mounting holes
- For small auxiliary/tender outboards within the stated rating
Technical Specs
| Maximum stated engine | 7 HP two-stroke / 4 HP four-stroke |
| Pad size | 240 H × 200 W × 40 mm |
| Bracket size | 140 H × 160 W mm |
| Mounting | Four pre-drilled holes |
| Supply | Bracket and pad; transom hardware not confirmed |
| 4Boats SKU | mms-434 |
Compatibility / Fitment Guide
Use only on a sound transom or reinforced mounting area capable of carrying the engine’s static weight plus starting, steering, wave and propeller-thrust loads.
| Engine limit | Maximum 7 HP two-stroke or 4 HP four-stroke, subject also to the bracket’s allowable engine weight. Check the engine nameplate/manual mass; modern four-strokes can be substantially heavier. |
| Clamp pad | Confirm the engine clamps open around a 40 mm pad and land fully within the 240 × 200 mm face. The clamp screws must clear the bracket structure. |
| Shaft height | With the bracket fitted, the anti-ventilation plate should sit at the height specified by the engine maker relative to the hull bottom. Verify short/long-shaft compatibility before drilling. |
| Transom mounting | Compare the four-hole pattern to the available flat area. Use through-bolts, large backing plates and marine sealant appropriate to the transom; do not rely on screws into a thin skin. |
| Movement and removal | Check full steering, tilt, propeller and tiller clearance. Fit an independent engine safety cable; the removable feature is not a substitute for secondary retention. |
| Not suitable for | Engines above the stated rating, cracked/soft transoms, planing loads outside the bracket design, or installations where the propeller can contact the hull or rudder. |
Part Number Cross Reference
| Application reference | Seagull/similar small auxiliary outboard |
| Capacity reference | 7 HP 2-stroke / 4 HP 4-stroke maximum stated |
| 4Boats SKU | mms-434 |
No OEM engine part number is claimed. Selection is by pad geometry, engine weight/rating, shaft height and transom structure.
Frequently Asked Questions
Can I fit a 7HP four-stroke?
No. The stated four-stroke limit is 4 HP.
Does horsepower alone determine fit?
No. Engine weight, clamp opening, thrust, shaft length and transom strength all matter.
Are bolts included?
The live product data does not confirm transom fasteners; select marine-grade hardware for the actual transom construction.
Can it be mounted to a thin GRP skin?
Not without suitable structural reinforcement and backing.
Have the transom and installation assessed by a competent boatbuilder or marine engineer if there is any doubt. Re-torque and inspect the bracket, backing and safety cable regularly.
For the products under £150 the shipping is £6.99.
Free delivery for most items over £150.
