Identify Attwood Lock N’ Stow 10107, 10108 & 10309 Supports
An Attwood Lock N’ Stow motor support holds a compatible outboard in its trailering position without joining the lower unit to the trailer. Models 10107, 10108 and 10309 serve distinct engine families. A similar finish or approximate horsepower does not establish fit.
Compare exact Attwood model numbers
| Attwood MPN | Manufacturer-listed engine group | Construction |
|---|---|---|
| 10107 | Mercury 200/255 OptiMax and 225/250 HP EFI | Steel |
| 10108 | Mercury 135/150/175 OptiMax; listed 75–200 HP EFI | Steel |
| 10309 | OMC/Bombardier 1989 onward, 100 HP and above | Steel |
The manufacturer-listed engine families are an identification starting point, not a guarantee of fit for all serial numbers or brackets.
Identification and replacement checks
- Identify the outboard's exact model, year and serial or bracket details.
- Compare the support's engine mounting interface to the manufacturer's application instructions.
- Do not assume overlapping horsepower descriptions make 10107 and 10108 interchangeable.
- Inspect the support, pin retention and contact points before trailering.
- Check the individual product listing for actual condition and all included parts.
Exact matching parts
Check the linked product's description, condition and supplied components before selecting a replacement. Viewing and pickup for eligible UsedRVParts items in Kelowna are by appointment.
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