Arco 20800 OEM Premium Replacement Alternator fits Mercruiser 4.3L to 8.2L engines (1998 - Onwards). The marine engine alternator is rated 12 volt and 70 amps, featuring an internal fan and supplied complete with a 65mm multi-groove serpentine pulley.

The Arco alternator replaces the following part numbers:

- Delco 19020601 and 19020609 Alternators

- Mercury 862031T and 862031T1 Alternators

- Sierra 18-6293 Alternator

- Protorque PH300-0034 and PH300-0035 Alternators

- MPParts ADR0299 and ADR0316 Alternators

- Mallory 9-19110 Alternator