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Sierra 18-5984 Alternator 7SI 70 Amp Spool Mount 6 Groove Serpentine Pulley

Manufacturer

Picture for manufacturer Sierra

Part Number

18-5984
12 reviews
Sale Price

$312.50

1 left at this price

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Usually delivered within 2 days

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Product Details

The Sierra 18-5984 is a high-output 70-amp alternator designed for marine and powersports applications. This replacement alternator features a proven 7SI design that delivers reliable charging performance for demanding electrical systems.

Key Specifications:

  • Output: 70 amps for high-demand electrical systems
  • Design: 7SI series alternator with proven reliability
  • Mounting: Spool mount configuration for secure installation
  • Pulley: 2 5/8" outer diameter, 6-groove serpentine pulley
  • Construction: Marine-grade components for corrosion resistance

This alternator is engineered to meet or exceed OEM specifications, providing dependable charging performance in harsh marine environments. The 6-groove serpentine pulley ensures positive belt engagement and efficient power transfer. Sierra's quality construction ensures long service life and reliable operation when you need it most.

Products specifications

Compatibility

7SI/70 AmpSpool Mount2 5/8" OD6 Groove Serpentine Pulley

Type

Alternators

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