Skip to Content

OEM Volvo Penta 5.7L V8 Engine Wiring Harness 3817806 ECU ECM Fuse Relay

Genuine OEM Volvo Penta 5.7L V8 marine engine main wiring harness assembly, Part Number 3817806.

This is a complete used take-off harness as pictured with multiple OEM-style engine connectors, main ECU/ECM connections, power and ground leads, fuse/relay electrical boxes, mounting bracket, wiring branches, and associated connectors and leads.

Suitable as a replacement harness for compatible Volvo Penta 5.7L marine engine applications. Due to differences between engine models and production years, buyer should verify the part number, connector configuration, and engine serial number before purchase.

Highlights

  • Genuine OEM Volvo Penta
  • Part Number 3817806
  • 5.7L V8 Marine Engine Application
  • Main Engine Wiring Harness Assembly
  • ECU / ECM Connections
  • Multiple OEM Engine Connectors
  • Fuse / Relay Electrical Boxes
  • Power & Ground Leads
  • Mounting Bracket Included
  • Extensive Engine Wiring Branches
  • Used OEM Take-Off Assembly
  • Sold Exactly as Pictured

Condition

Used OEM condition with normal wear from previous marine-engine use, including grime, staining, tape/wrap wear, scratches, and some oxidation on terminals and hardware.

Multiple connectors and wiring leads are present as pictured. The harness has not been electrically tested circuit-by-circuit, and completeness of every individual connector or lead has not been independently verified.

Please review all photos carefully for exact condition, connector configuration, and included components. Sold exactly as pictured.

Specifications

Manufacturer: Volvo Penta

Part Type: Main Engine Wiring Harness

Part Number: 3817806

Engine Type: Marine Gasoline V8

Engine Application: 5.7L Volvo Penta

ECU / ECM Connections: Included as Pictured

Fuse / Relay Boxes: Included as Pictured

Mounting Bracket: Included

Condition: Used OEM

Testing: Not Electrically Tested Circuit-by-Circuit

Fitment

Designed for select Volvo Penta 5.7L V8 marine engine applications. Buyer should verify compatibility using Part Number 3817806, connector configuration, engine model, electrical-system configuration, and engine serial number before purchase.

Dealer Sale – Sunset Marine TX LLC

SKU: 10763

$ 514.95 $ 514.95
 Terms and Conditions