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

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

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$143.09
Sale price  $143.09 Regular price 

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This Ignition Complete Distributor is a high-quality aftermarket replacement part compatible with Mercruiser EST GM 2.5L and 3.0L engines and matches OEM Part# 817377.
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I needed a forklift part and wasn’t sure which one fit. They asked for the model and serial number, got back to me quickly, and made sure I ordered the right one. Really helpful.

Randy W. — Verified customer

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.

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