817377 For Mercruiser EST GM 3.0L 2.5 Delco 3.0L Ignition Complete Distributor

Product Overview

This complete ignition distributor is engineered to provide precise spark timing for Mercruiser 2.5L and 3.0L GM-based marine engines. Built for the rigors of the marine environment, it serves as a direct replacement for Delco EST systems, ensuring reliable engine starts and consistent performance across all RPM ranges.

Key Features & Performance

• Full assembly including distributor cap and rotor.
• Designed specifically for Delco EST (Electronic Spark Timing) configurations.
• Heavy-duty construction resists corrosion and thermal stress.
• Provides stable ignition output for improved fuel efficiency.

Fitment & Compatibility

• Mercruiser 2.5L GM Marine Engines
• Mercruiser 3.0L GM Marine Engines
• Mercruiser 3.0LX GM Marine Engines
• Delco EST Ignition Systems

Technical Specifications

• Part Number(s): 817377
• Engine Configuration: Inline 4-Cylinder
• Ignition Type: Electronic (EST)
• Application: Marine Sterndrive/Inboard

Frequently Asked Questions

• Q: Is this a complete unit ready for installation? A: Yes, this is a complete ignition distributor assembly that includes the internal electronics, cap, and rotor.
• Q: Will this work on engines with points-style ignition? A: No, this distributor is specifically designed for GM-based engines equipped with the Delco EST electronic ignition system.

Compatibility may vary by serial number. Verify fitment before purchase.