Sierra Mercury Distributor - 18-5475

Features:

• Fits: 4 cylinder GM engines with Delco EST ignition HEI
• Aluminum housing construction
• Designed as a direct replacement for late model GM EST Distributor
• Meets or exceeds SAE J1171 standards
• Includes steel gear, which is compatible with flat tappet or hydraulic roller cams
• Reliable high signal strength trigger system
• Ball bearing and bushing combination provides maximum timing stability and a long life

Replaces:

• Crusader:
  • 1003317
  • 12532
• Mercruiser Stern Drive:
  • 300-8M6005801
  • 817377
  • 817377T