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Sierra
Sierra Thunderbolt IV V-8 HEI Distributor - 18-5470
Item: #1781018 | Part Number: 18-5470$461.67
Description
The Sierra Thunderbolt IV V-8 HEI Distributor 18-5470 is a direct replacement for Mercury Thunderbolt IV ignition systems, delivering reliable high-energy spark performance for GM V-8 marine engines. Featuring a Hall-Effect sensor, it ensures precise ignition timing even at low RPMs, while meeting or exceeding SAE J1171 safety standards.
Sierra Thunderbolt IV V-8 HEI Distributor - 18-5470 Item # 1781018
Description
Features:
- Fits: GM V-8 Engines with Thunderbolt IV & V Ignition
- Battery Powered (HEI) High Energy Ignition
- Uses a Hall-Effect type sensor to trigger ignition accurately even at extremely low RPM
- Designed as a direct replacement for Mercury Thunderbolt IV Ignition Distributors
- Meets or Exceeds SAE J1171 Standards
Replaces:
- GLM:
- 71250
- Mercruiser Stern Drive:
- 805185A16
- 805185A26
- 805185A36
- 805185A43
- 805185A6
- 862057A4
- 90747A21
- 90747A25
- 90747A27
- 90747A3