Sierra 18-6455 Alternator, 50 Amp for Mercury Outboards
- Brand:
- Sierra
- Part no:
- 18-6455
Where to buy
View on Amazonpaid link
Specifications
- Output
- 50 amp
This Sierra replacement alternator, 18-6455, is made for Mercury outboards and is rated at 50 amps. It carries a 5S/I designation and is stated to fit 1.5L and 3.0L engines. Engines named include the 200 DFI, 225 EFI and 250 EFI, plus the Sea Pro and DTS versions. Sierra says its aftermarket engine parts are made to meet or exceed OEM requirements.
Our take
Rated at 50 amps and stated for 1.5L and 3.0L Mercury outboards, the 18-6455 is matched to a specific engine group. Check your model against the named 200 DFI, 225 EFI and 250 EFI engines. Nothing here says whether it is ignition protected.