18-5953-1 - Alt Conversion Kit

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Sierra Marine


Includes new 18-5956 68 AMP alternator, mounting brackets #18-5968, pulley (8.0” O.D. x 2.75” H), wiring, hardware and instructions.

Converts model 470 aluminum block Mercruiser engines serial number 4625580 & up with stator charging system and water cooled voltage regulator to alternator system.

NOTE: Fuse kit 18-8220 (sold separately) is required on engines with a Delco starter (round solenoid mounted to starter); Prestolite starters with remote solenoid DO NOT require fuse kit. Visually inspect starter prior to ordering conversion kit. For: Mercruiser 224 / 3.7L

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Sierra Marine is the market leader for aftermarket marine engine parts. Sierra products cover every major engine brand. Sierra offers a comprehensive product line and an unsurpassed customer satisfaction warranty covering parts and labor.