This alternator conversion kit is designed for MerCruiser 470 (3.7L) and 224 (3.7L) stern drive applications that originally used a stator-type charging system. Supplied under Recmar reference REC18-5953, it’s intended to convert to a conventional alternator-style charging setup when the correct match is confirmed.

Before ordering: fitment can vary by engine version/serial number and existing charging-system configuration. Always match by engine details and reference numbers on your current setup.

• Part: Alternator Conversion Kit
• Output: 12V, 68A
• Engine fitment: MerCruiser 470 (3.7L), 224 (3.7L)
• Reference numbers: 18-5953 (commonly superseded by 18-5953-1), Recmar REC18-5953, MerCruiser/Mercury 804916A1 (compare to confirm)
• Installation notes: Many 3.7L conversion kits are specified for aluminum-block engines from serial 4625580 and up. Some installations may require a separate 90A fuse kit (often listed as 18-8220) depending on starter type/engine serial—verify your requirements before installation.

Fitment varies by engine version. Always confirm the part number(s) on your existing components and your engine serial number before purchase to avoid ordering the wrong kit.