817377 Aftermarket Mercruiser Distributor 3.0L | Sawley's Select Marine Parts

🔧 Product Description

Aftermarket replacement 3.0L Complete Delco EST Distributor - Replaces Part Number: 817377

New aftermarket complete distributor replacing MerCruiser 817377 for GM 3.0L four-cylinder marine engines with Delco EST ignition.

⚙️ Key Features

• Complete four-cylinder Delco EST distributor

• Includes serviceable cap, rotor, pickup and module families

• Cross-references Volvo Penta/OMC distributor numbers

• Direct replacement gear and housing layout

• Current Mercury replacement family 8M6005801

🧰 Kit / Assembly Contents

• 1 × Complete distributor housing and shaft - P/N 817377

• 1 × Four-cylinder cap - service P/N 811635T3

• 1 × Four-cylinder rotor - service P/N 8M6001254

• 1 × Pickup-coil sensor - service P/N 811639T

• 1 × Delco ignition module - service P/N 8M6008208 / 811637001

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 8M6005801 → Supersedes 817377

• 817377 → Cross-references Volvo Penta 3854264 and OMC 986653/0986653

OEM / Related Numbers:

• 8M6005801

• 3854264

• 986653

• 0986653

• WD-C018

Aftermarket / Verified Equivalents:

• Sierra: 18-5475

• MCC/Marine aftermarket: WD-C018

• Recmar complete 3.0L Delco distributor family

🚤 Compatibility

Commonly used on:

• GM 3.0L marine engines with Delco EST ignition

Typically suits:

• Engine / Equipment models:

• MerCruiser 3.0L and 3.0LX

• Documented serial family 0D504542-0F603999

• Volvo Penta/OMC 3.0L engines using 3854264/986653

• HP / Output Range: Approximately 115HP - 150HP

• Engine / System Type: GM inline four-cylinder petrol marine engine with Delco EST distributor

• Year Range: Principally 1990s; later replacement coverage is serial-dependent

• Serial / Component Identification: Confirm distributor gear, connector and cap 811635T3.

🔌 Function

The distributor synchronises spark delivery with engine position and routes ignition energy to each cylinder. Depending on the system, it also contains the pickup sensor, ignition module, cap and rotor.

Common signs of failure / service requirement:

• No spark or intermittent ignition shutdown

• Unstable ignition timing or excessive timing scatter

• Distributor-shaft play, noise or reluctor contact

• Carbon tracking, cap/rotor burning or repeated misfire

• Corroded pickup, module or internal electrical connections

📦 Condition

• New aftermarket replacement part

• Brand new

• Supplied in original or equivalent packaging