Sierra 18-5913-1 Marine Starter for Late Model GM 14" Flywheel

The Sierra 18-5913-1 is a high-performance marine starter designed specifically for late model GM engines with 14-inch flywheels. This Delco-style permanent magnet gear reduction starter features a 4.909:1 gear reduction ratio that delivers reliable starting power in demanding marine environments.

Key Specifications:

• 12-volt system with 11-tooth drive and clockwise rotation at 1.7 KW
• Offset bolt pattern with 2-bolt mounting configuration
• Compatible with 168-tooth flywheels
• Meets SAE J1171 and ISO 8846 marine standards
• Bottom-mount design for easy installation

Marine-Grade Construction:

• Engineered to minimize water intrusion and prevent water accumulation
• High-performance solenoid with lower pull-in current for reliable starting with partially discharged batteries
• Duckbill valve and relief cuts to remove moisture
• Painted housing prevents rust and corrosion
• Sealed internal components protect against harsh marine elements

Application: Fits 4.3L engines (1996 and up), 5.0L and 5.7L engines (1998 and up). Compatible with Volvo Penta 3.0, 4.3, 5.0, 5.7, 7.4, 8.1, and 8.2L GI, GL, GXi, OSi sterndrive engines.

Replaces OEM Part Numbers: MerCruiser 50-812428A3, 50-812604A2, 50-822330A2, 50-863007A1, 50-864340A2; OMC 3854751; Volvo Penta 3587625, 3853982, 3854751, 3856004, 3860764, 3885317; Mallory 9-15900, 9-15904; GLM 74190.

Note: OE version uses a 9-tooth drive while this aftermarket version has an 11-tooth drive; the two units work interchangeably with no modifications required. Includes mounting bolts and gasket. Replacement solenoid part number is 18-6287.