863656A1 Aftermarket Mercruiser V8 Ignition Cable Kit Angled Boots 350 MPI/6.2L MPI | Sawley's Select Marine Parts

🔧 Product Description

Aftermarket replacement V8 ECM555 MPI Ignition Lead Set - Angled Boots - Replaces Part Number: 863656A1

New nine-lead ignition-cable set replacing MerCruiser 863656A1 for ECM555 5.0L, 5.7L and 6.2L MPI engines with the flat-cap HVS distributor and angled spark-plug boots.

⚙️ Key Features

• Nine-lead V8 ECM555 MPI set

• Angled spark-plug boot configuration

• Correct lead routing for Vortec small-block engines

• Matches flat-cap HVS distributor 879150A87

• Includes eight plug leads and one coil lead

🧰 Kit / Assembly Contents

• 8 × Angled-boot spark-plug leads - serviced only as kit P/N 863656A1

• 1 × Distributor-to-ignition-coil lead - serviced only as kit P/N 863656A1

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 863656A1 (MerCruiser V8 MPI lead-set reference)

OEM / Related Numbers:

• 15-813

Aftermarket / Verified Equivalents:

• Recmar: REC15-813

• Marine Vortec V8 ECM555 angled-boot lead-set equivalents

🚤 Compatibility

Commonly used on:

• MerCruiser ECM555 V8 MPI distributor ignition engines

Typically suits:

• Engine / Equipment models:

• 5.0L MPI

• 5.7L/350 Mag MPI

• 6.2L/377 MPI

• HP / Output Range: Approximately 260HP - 350HP

• Engine / System Type: GM Vortec small-block V8 petrol marine engine with HVS distributor

• Year Range: Approximately 2001 - 2015; serial 0M300000-2A455878 where specified

• Serial / Component Identification: Confirm angled plug boots and flat-cap distributor 879150A87.

🔌 Function

The ignition leads carry high-voltage energy from the distributor or individual coils to the spark plugs. Marine-grade insulation and correctly fitted terminals prevent leakage, crossfire and radio-frequency interference.

Common signs of failure / service requirement:

• Misfire under acceleration or high load

• Visible arcing in darkness or around damp lead boots

• Cracked, hardened or oil-contaminated insulation

• Excessive lead resistance or open circuit

• Rough idle, crossfire or radio-frequency interference

📦 Condition

• New aftermarket replacement part

• Brand new

• Supplied in original or equivalent packaging